| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
3 companies
Posner Brian S is a Director at BIOGEN INC. with holdings across 3 companies. Recent SEC Form 4 filings include 7 buys and 4 sells.
Estimated insider holdings value: $2.1M based on current market prices.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 11, 2026 | ACGLN Arch Capital Group Ltd. | Director | Sell | 3,000 | $17.12 | $51,345.00 | -60.0% | - | - | |
| Aug 1, 2025 | ACGL Arch Capital Group Ltd. | - | Buy | 1,000 | $17.34 | $17,338.00 | +25.0% | -1.5% | - | |
| Oct 28, 2022 | ACGL Arch Capital Group Ltd. | Director | Buy | 2,000 | $17.60 | $35,200.00 | +100.0% | +14.2% | +43.5% | |
| Apr 29, 2022 | ACGL Arch Capital Group Ltd. | Director | Buy | 2,000 | $19.23 | $38,450.00 | New | -5.2% | +64.4% | |
| Jun 14, 2021 | ACGL Arch Capital Group Ltd. | Director | Sell | 4,000 | $25.24 | $100,971.20 | -66.7% | +1.9% | +13.8% | |
| Jun 4, 2021 | BIIB Biogen Inc. | Director | Sell | 360 | $274.17 | $98,701.20 | -4.6% | +17.3% | -29.9% | |
| May 13, 2020 | ACGL Arch Capital Group Ltd. | Director | Buy | 1,000 | $22.16 | $22,159.40 | +1.0% | - | - | |
| May 6, 2020 | ACGL Arch Capital Group Ltd. | Director | Buy | 1,000 | $23.72 | $23,717.80 | +1.1% | - | - | |
| Dec 2, 2019 | BIIB Biogen Inc. | Director | Sell | 1,055 | $292.35 | $308,429.25 | -13.1% | - | - | |
| Nov 28, 2018 | ACGL Arch Capital Group Ltd. | Director | Buy | 1,000 | $25.05 | $25,050.60 | +1.1% | - | - |