Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2021-10-26 Purchase |
2021-10-26 5:04 pm |
Xilio Therapeutics Inc. | XLO | Rock Springs Capital Management LP Rock Springs Capital LLC Rock Springs Capital Master Fund LP Four Pines Master Fund LP 10% Owner |
500,000 | $16 | $8,000,000 | 1,256,472 (Indirect) |
View |
2021-10-12 Purchase |
2021-10-14 5:00 pm |
Theseus Pharmaceuticals Inc. | THRX | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
250,000 | $16 | $4,000,000 | 599,320 (Indirect) |
View |
2021-06-21 Purchase |
2021-06-22 5:20 pm |
Verve Therapeutics Inc. | VERV | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
370,000 | $19 | $7,030,000 | 152,926 (Indirect) |
View |
2020-11-03 Purchase |
2020-11-04 4:05 pm |
Atea Pharmaceuticals Inc. | AVIR | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
250,000 | $24 | $6,000,000 | 289,695 (Indirect) |
View |
2020-07-28 Purchase |
2020-07-28 8:53 pm |
Inozyme Pharma Inc. | INZY | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
600,000 | $16 | $9,600,000 | 1,067,884 (Indirect) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
Ownership |
2022-01-10 5:15 pm |
N/A N/A |
Tempest Therapeutics Inc. | TPST | Rock Springs Capital Management LP Rock Springs Capital LLC Rock Springs Capital Master Fund LP 10% Owner |
0 | $0 | 823,654 (Indirect) |
View |
2021-10-26 Conversion |
2021-10-26 5:04 pm |
N/A N/A |
Xilio Therapeutics Inc. | XLO | Rock Springs Capital Management LP Rock Springs Capital LLC Rock Springs Capital Master Fund LP Four Pines Master Fund LP 10% Owner |
9,531,553 | $0 | 1,256,472 (Indirect) |
View |
Ownership |
2021-10-21 8:51 pm |
N/A N/A |
Xilio Therapeutics Inc. | XLO | Rock Springs Capital Management LP Rock Springs Capital LLC Rock Springs Capital Master Fund LP Four Pines Master Fund LP 10% Owner |
0 | $0 | 907,766 (Indirect) |
View |
2021-10-12 Conversion |
2021-10-14 5:00 pm |
N/A N/A |
Theseus Pharmaceuticals Inc. | THRX | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
436,649 | $0 | 599,320 (Indirect) |
View |
Ownership |
2021-10-06 7:01 pm |
N/A N/A |
Theseus Pharmaceuticals Inc. | THRX | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
0 | $0 | 436,649 (Indirect) |
View |
2021-06-21 Conversion |
2021-06-22 5:20 pm |
N/A N/A |
Verve Therapeutics Inc. | VERV | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
7,276,290 | $0 | 152,926 (Indirect) |
View |
Ownership |
2021-06-16 7:15 pm |
N/A N/A |
Verve Therapeutics Inc. | VERV | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
0 | $0 | 709,224 (Indirect) |
View |
2020-11-03 Conversion |
2020-11-04 4:05 pm |
N/A N/A |
Atea Pharmaceuticals Inc. | AVIR | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
3,388,838 | $0 | 289,695 (Indirect) |
View |
Ownership |
2020-10-29 8:50 pm |
N/A N/A |
Atea Pharmaceuticals Inc. | AVIR | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
0 | $0 | 1,694,419 (Indirect) |
View |
2020-07-28 Conversion |
2020-07-28 8:53 pm |
N/A N/A |
Inozyme Pharma Inc. | INZY | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
3,964,388 | $0 | 1,067,884 (Indirect) |
View |
Ownership |
2020-07-23 9:31 pm |
N/A N/A |
Inozyme Pharma Inc. | INZY | Rock Springs Capital Management LP Rock Springs Capital Master Fund LP Rock Springs Capital LLC 10% Owner |
0 | $0 | 467,884 (Indirect) |
View |