Insider filing report for Changes in Beneficial Ownership
- Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
- Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
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- Peter Lynch
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|
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13G
|
UNDER THE SECURITIES EXCHANGE ACT OF 1934
|
Mereo BioPharma Group plc (Name of Issuer) |
Ordinary Shares, nominal value EURO0.003 per share, represented by American Depository Shares (Title of Class of Securities) |
589492107 (CUSIP Number) |
04/01/2025 (Date of Event Which Requires Filing of this Statement) |
| Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |
 Rule 13d-1(b)
|
 Rule 13d-1(c)
|
| Rule 13d-1(d)
|
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Frazier Life Sciences Public Fund, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
27,578,325.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
3.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares held directly by Frazier Life Sciences Public Fund, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLSP, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
27,578,325.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
3.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares held directly by Frazier Life Sciences Public Fund, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLSP, L.L.C. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
27,578,325.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
3.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares held directly by Frazier Life Sciences Public Fund, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Frazier Life Sciences Public Overage Fund, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
7,509,280.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.9 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 American Depositary Shares held directly by Frazier Life Sciences Public Overage Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLSP Overage, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
7,509,280.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.9 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 American Depositary Shares held directly by Frazier Life Sciences Public Overage Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLSP Overage, L.L.C. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
7,509,280.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.9 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 American Depositary Shares held directly by Frazier Life Sciences Public Overage Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Frazier Life Sciences X, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
1,590,155.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.2 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 1,590,155 Ordinary Shares of the Issuer, represented by 318,031 American Depositary Shares held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLS X, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
1,590,155.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.2 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 1,590,155 Ordinary Shares of the Issuer, represented by 318,031 American Depositary Shares held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLS X, L.L.C. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
1,590,155.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.2 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 1,590,155 Ordinary Shares of the Issuer, represented by 318,031 American Depositary Shares held directly by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Frazier Life Sciences XI, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
3,671,555.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 American Depositary Shares held directly by Frazier Life Sciences XI, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLS XI, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
3,671,555.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
PN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 American Depositary Shares held directly by Frazier Life Sciences XI, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
FHMLS XI, L.L.C. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
3,671,555.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 American Depositary Shares held directly by Frazier Life Sciences XI, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
James N. Topper | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
40,349,315.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
5.1 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of (i) 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares ("ADSs") held directly by Frazier Life Sciences Public Fund, L.P., (ii) 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 ADSs held directly by Frazier Life Sciences Public Overage Fund, L.P., (iii) 1,590,155 Ordinary Shares of the Issuer, represented by 318,031 ADSs held directly by Frazier Life Sciences X, L.P., and (iv) 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 ADSs held directly by Frazier Life Sciences XI, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Patrick J. Heron | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instruc
tions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
40,349,315.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
5.1 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of (i) 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares ("ADSs") held directly by Frazier Life Sciences Public Fund, L.P., (ii) 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 ADSs held directly by Frazier Life Sciences Public Overage Fund, L.P., (iii) 1,590,155 Ordinary Shares of the Issuer, represented by 318,031 ADSs held directly by Frazier Life Sciences X, L.P., and (iv) 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 ADSs held directly by Frazier Life Sciences XI, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. Patrick J. Heron and James N. Topper are the members of FHMLS X, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences X, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Albert Cha | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
35,087,605.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
4.4 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of (i) 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares ("ADSs") held directly by Frazier Life Sciences Public Fund, L.P., and (ii) 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 ADSs held directly by Frazier Life Sciences Public Overage Fund, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
James Brush | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
35,087,605.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
4.4 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of (i) 27,578,325 Ordinary Shares of the Issuer, represented by 5,515,665 American Depositary Shares ("ADSs") held directly by Frazier Life Sciences Public Fund, L.P., and (ii) 7,509,280 Ordinary Shares of the Issuer, represented by 1,501,856 ADSs held directly by Frazier Life Sciences Public Overage Fund, L.P. FHMLSP, L.P. is the general partner of Frazier Life Sciences Public Fund, L.P. and FHMLSP, L.L.C. is the general partner of FHMLSP, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Fund, L.P. FHMLSP Overage, L.P. is the general partner of Frazier Life Sciences Public Overage Fund, L.P. and FHMLSP Overage, L.L.C. is the general partner of FHMLSP Overage, L.P. Patrick J. Heron, James N. Topper, Albert Cha and James Brush are the members of FHMLSP Overage, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences Public Overage Fund, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| CUSIP No. | 589492107 |
| 1 | Names of Reporting Persons
Daniel Estes | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
| ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
3,671,555.
00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
| ||||||||
| 11 | Percent of class represented by amount in row (9)
0.5 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person: The shares listed in rows 6, 8 and 9 consist of 3,671,555 Ordinary Shares of the Issuer, represented by 734,311 American Depositary Shares held directly by Frazier Life Sciences XI, L.P. FHMLS XI, L.P. is the general partner of Frazier Life Sciences XI, L.P. and FHMLS XI, L.L.C. is the general partner of FHMLS XI, L.P. Patrick J. Heron, James N. Topper and Daniel Estes are the members of FHMLS XI, L.L.C. and therefore share voting and investment power over the shares held by Frazier Life Sciences XI, L.P.The percentage listed in row 11 is calculated based on 795,001,444 Ordinary Shares outstanding on March 25, 2025 as set forth in the Issuer's Annual Report on Form 10-K filed with the SEC on March 26, 2025.
SCHEDULE 13G
|
| Item 1. | ||
| (a) | Name of issuer:
Mereo BioPharma Group plc | |
| (b) | Address of issuer's principal executive offices:
4th Floor, One Cavendish Place, London, X0, W1G 0QF. | |
| Item 2. | ||
| (a) | Name of person filing:
The entities and persons filing this statement (collectively, the "Reporting Persons") are:Frazier Life Sciences Public Fund, L.P. ("FLSPF")FHMLSP, L.P.FHMLSP, L.L.C.Frazier Life Sciences Public Overage Fund, L.P. ("FLSPOF")FHMLSP Overage, L.P.FHMLSP Overage, L.L.C.Frazier Life Sciences XI, L.P. ("FLS XI")FHMLS XI, L.P.FHMLS XI, L.L.C.Frazier Life Sciences X, L.P. ("FLS X")FHMLS X, L.P.FHMLS X, L.L.C.James N. Topper ("Topper")Patrick J. Heron ("Heron")Albert Cha ("Cha")James Brush ("Brush")Daniel Estes ("Estes" and together with Topper, Heron, Cha and Brush, the "Members") | |
| (b) | Address or principal business office or, if none, residence:
The address and principal business office of the Reporting Persons is:c/o Frazier Life Sciences Management, L.P.1001 Page Mill Rd, Building 4, Suite BPalo Alto, CA 94304 | |
| (c) | Citizenship:
Entities:FLSPF-Delaware, U.S.A.FHMLSP, L.P.-Delaware, U.S.A.FHMLSP, L.L.C.-Delaware, U.S.A.FLSPOF-Delaware, U.S.A.FHMLSP Overage, L.P.-Delaware, U.S.A.FHMLSP, L.L.C.-Delaware, U.S.A.FLS XI-Delaware, U.S.A.FHMLS XI, L.P.-Delaware, U.S.A.FHMLS XI, L.L.C.-Delaware, U.S.A.FLS X-Delaware, U.S.A.FHMLS X, L.P.-Delaware, U.S.A.FHMLS X, L.L.C.-Delaware, U.S.A.Individuals: Topper-United States CitizenHeron-United States CitizenCha-United States CitizenBrush-United States CitizenEstes-United States Citizen | |
| (d) | Title of class of securities:
Ordinary Shares, nominal value EURO0.003 per share, represented by American Depository Shares | |
| (e) | CUSIP No.:
589492107 | |
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: | |
| (a) | Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
| |
| (b) | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
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| (c) | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
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| (d) | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
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| (e) | An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
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| (f) | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
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| (g) | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
| |
| (h) | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
| |
| (i) | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
| |
| (j) | A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution: | |
| (k) | Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
| |
| Item 4. | Ownership | |
| (a) | Amount beneficially owned:
The information contained in row 9 of each Reporting Person's cover page to this Schedule 13G (including the footnotes thereto) is incorporated by reference. | |
| (b) | Percent of class:
The information contained in row 11 of each Reporting Person's cover page to this Schedule 13G (including the footnotes thereto) is incorporated by reference. %
| |
| (c) | Number of shares as to which the person has:
| |
| (i) Sole power to vote or to direct the vote:
The information contained in row 5 of each Reporting Person's cover page to this Schedule 13G is incorporated by reference. | ||
| (ii) Shared power to vote or to direct the vote:
The information contained in row 6 of each Reporting Person's cover page to this Schedule 13G (including the footnotes thereto) is incorporated by reference. | ||
| (iii) Sole power to dispose or to direct the disposition of:
The information contained in row 7 of each Reporting Person's cover page to this Schedule 13G is incorporated by reference. | ||
| (iv) Shared power to dispose or to direct the disposition of:
The information contained in row 8 of each Reporting Person's cover page to this Schedule 13G (including the footnotes thereto) is incorporated by reference. | ||
| Item 5. | Ownership of 5 Percent or Less of a Class. | |
| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. | |
Not Applicable
| ||
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. | |
Not Applicable
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| Item 8. | Identification and Classification of Members of the Group. | |
Not Applicable
| ||
| Item 9. | Notice of Dissolution of Group. | |
Not Applicable
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| Item 10. | Certifications: |
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. |
| SIGNATURE | |
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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Exhibit Information
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Exhibit 99.1Joint Filing Agreement |