Passage Bio, Inc. (PASG) has 20 known insider and institutional holders on record. The largest holder is OrbiMed Capital GP VII LLC with 6,537,923 shares. Other notable holders include ORBIMED ADVISORS LLC and Lynx1 Capital Management LP.
Over the last 12 months, insiders have made 28 transactions in PASG stock — 17 buys (valued at $2.01M) and 10 sells (valued at $400.83K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
PASG Insider Ownership
Top Holder
OrbiMed Capital GP VII LLC
6,537,923 shares
Buys (12 mo)
17
$2.01M value
Sells (12 mo)
10
$400.83K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Orbimed Capital Gp Vii Llc |
Director |
6,537,923 |
2022-05-05 |
|
| 2 |
Orbimed Advisors Llc |
10 Percent Owner |
6,418,400 |
2025-06-26 |
|
| 3 |
Lynx1 Capital Management Lp |
10 Percent Owner |
592,021 |
2025-09-15 |
|
| 4 |
Cale Edgar B. |
Gc & Corporate Secretary |
278,386 |
2025-03-18 |
|
| 5 |
Forman Mark S |
Chief Medical Officer |
203,000 |
2024-03-19 |
|
| 6 |
Porter Derrell |
Director |
201,857 |
2025-05-30 |
|
| 7 |
Gowen Maxine |
Director |
201,857 |
2025-05-30 |
|
| 8 |
Sondhi Dolan |
Director |
201,857 |
2025-05-30 |
|
| 9 |
Islam Saqib |
Director |
201,857 |
2025-05-30 |
|
| 10 |
Countouriotis Athena |
Director |
201,857 |
2025-05-30 |
|
| 11 |
Kapadia Sandip |
Director |
201,857 |
2025-05-30 |
|
| 12 |
Salinas Eliseo Oreste |
Chief Res. & Develop Officer |
157,500 |
2022-02-14 |
|
| 13 |
Kassberg Thomas Richard |
Director |
143,789 |
2025-05-30 |
|
| 14 |
Romano Gary |
Chief Medical Officer |
105,000 |
2021-02-18 |
|
| 15 |
Goldsmith Bruce A |
CEO and President |
100,000 |
2022-06-01 |
|
| 16 |
Chou William |
President and CEO |
58,000 |
2026-03-18 |
|
| 17 |
Heron Patrick J |
10 Percent Owner |
33,836 |
2020-03-02 |
|
| 18 |
Squinto Stephen P |
Head of Research and Dev |
33,836 |
2020-03-02 |
|
| 19 |
Fotopoulos Alexandros |
Chief Technical Officer |
25,000 |
2023-06-20 |
|
| 20 |
Woiwode Thomas |
10 Percent Owner |
24,000 |
2023-05-26 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-16 |
Borthwick Kathleen |
CFO |
RSU Award |
15,610 |
$7.64 |
$119.26K |
| 2026-03-16 |
Chou William |
President and CEO |
RSU Award |
58,000 |
$7.64 |
$443.12K |
| 2026-01-08 |
Borthwick Kathleen |
CFO |
Option Exercise (Sell) |
5,000 |
- |
- |
| 2026-01-08 |
Chou William |
President and CEO |
Informative Sell |
4,076 |
$18.44 |
$75.16K |
| 2025-01-15 |
Borthwick Kathleen |
CFO |
RSU Award |
10,000 |
- |
- |
| 2025-01-15 |
Chou William |
President and CEO |
RSU Award |
20,000 |
- |
- |
| 2025-09-15 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
11,900 |
$6.99 |
$83.18K |
| 2025-09-12 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
19,783 |
$6.99 |
$138.3K |
| 2025-09-11 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
325 |
$6.96 |
$2.26K |
| 2025-07-24 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
66,423 |
$5.71 |
$379.45K |
| 2025-07-23 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
49,302 |
$5.74 |
$283.03K |
| 2025-07-22 |
Lynx1 Capital Management Lp |
10 Percent Owner |
Informative Buy |
13,123 |
$5.44 |
$71.34K |
| 2025-06-26 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
213,257 |
$0.33 |
$70.37K |
| 2025-06-25 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
138,800 |
$0.33 |
$45.8K |
| 2025-06-24 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
231,600 |
$0.35 |
$81.06K |
| 2025-05-28 |
Sondhi Dolan |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-05-28 |
Porter Derrell |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-05-28 |
Kapadia Sandip |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-05-28 |
Islam Saqib |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-05-28 |
Countouriotis Athena |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-05-28 |
Kassberg Thomas Richard |
Director |
RSU Award |
143,789 |
$0.36 |
$51.74K |
| 2025-05-28 |
Gowen Maxine |
Director |
RSU Award |
201,857 |
$0.36 |
$72.63K |
| 2025-04-24 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
68,195 |
$0.32 |
$21.82K |
| 2025-04-23 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
89,328 |
$0.34 |
$30.37K |
| 2025-04-22 |
Orbimed Advisors Llc |
10 Percent Owner |
Informative Sell |
78,049 |
$0.34 |
$26.54K |
