Posner Brian S
CIK 1372455
Transactions on file
9
Open-market buys
5
Win rate (buys)
80%
5 scored
Avg % since filing (buys)
+86.6%
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-09 | 2026-06-08 | DYN Dyne Therapeutics, Inc. | Buy | 2,000 | $33.9K | +5.8% | open → | |
| 2026-06-05 | 2026-06-03 | DYN Dyne Therapeutics, Inc. | Buy | 2,500 | $43.7K | +2.5% | open → | |
| 2026-06-04 | 2026-06-03 | ACGL ARCH CAPITAL GROUP LTD. | Director | Sale | 3,000 | $59.0K | +359.9% | open → |
| 2026-05-28 | 2026-05-26 | DYN Dyne Therapeutics, Inc. | Buy | 2,000 | $36.4K | -1.6% | open → | |
| 2026-05-22 | 2026-05-20 | DYN Dyne Therapeutics, Inc. | Buy | 2,500 | $42.8K | +4.7% | open → | |
| 2026-05-12 | 2026-05-11 | ACGL ARCH CAPITAL GROUP LTD. | Director | Sale | 2,000 | $34.3K | +427.4% | open → |
| 2025-05-09 | 2025-05-07 | ACGL ARCH CAPITAL GROUP LTD. | Director | Grant | 1,564 | — | — | open → |
| 2026-05-07 | 2026-05-05 | ACGL ARCH CAPITAL GROUP LTD. | Director | Grant | 2,071 | $0.00 | — | open → |
| 2025-08-04 | 2025-08-01 | ACGL ARCH CAPITAL GROUP LTD. | Director | Buy | 1,000 | $17.3K | +421.4% | open → |
