Insider Holders & Insider Ownership - Upstream Bio Inc. (UPB)

List of insiders holdings for Upstream Bio Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. 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
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# Insider Holder Name Report
Date Time		 Shares Owned
Directly
Indirectly		 Total
Shares Owned		 Filing
1 AI Upstream LLC
AI Biotechnology LLC
Access Industries Holdings LLC
ACCESS INDUSTRIES MANAGEMENT LLC
Blavatnik Len
10% Owner		 2024-10-22 16:06:27 5,494,410
0		 5,494,410 Form 13D
2 ORBIMED ADVISORS LLC
OrbiMed Capital GP VIII LLC
OrbiMed Advisors Israel II Ltd
OrbiMed Israel GP II L.P.
Director
10% Owner		 2024-10-17 16:17:52 0
4,554,873		 4,554,873 Form 4
3 Chimovits Erez
Director
10% Owner		 2024-10-17 16:19:30 0
4,554,873		 4,554,873 Form 4
4 Wellington Biomedical Innovation Master Investors (Cayman) II L.P.
10% Owner		 2024-10-15 19:21:47 894,733
0		 894,733 Form 4
5 Sutherland Everett Rand
Chief Executive Officer		 2025-02-07 17:32:21 500,000
0		 500,000 Form 4
6 GRAY MICHAEL
CFO and COO		 2025-02-07 17:31:01 195,000
0		 195,000 Form 4
7 Deykin Aaron
Chief Medical Officer		 2025-02-07 17:29:21 165,000
0		 165,000 Form 4
8 Houghton Adam
Chief Business Officer		 2025-02-07 17:29:56 140,000
0		 140,000 Form 4
9 Beckman Daniella
Director		 2024-10-15 16:15:07 34,681
0		 34,681 Form 4
10 Ambrose Allison
General Counsel		 2025-02-07 17:25:45 25,000
0		 25,000 Form 4
11 Ratcliffe Liam
Director		 2024-10-15 16:15:06 17,096
0		 17,096 Form 4
12 Renaud Ronald C JR
Director		 2024-10-15 16:15:08 17,096
0		 17,096 Form 4
13 Fleming Harold Edward
Director		 2024-10-15 16:15:08 17,096
0		 17,096 Form 4
14 Ruddy Marcella K.
Director		 2024-10-15 16:15:09 17,096
0		 17,096 Form 4