Singhal Priya
CIK 1769608 · View on SEC EDGAR ↗
First SEC filing: Jan. 17, 2023 · Latest: Feb. 17, 2026
On this page
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 9, 2026 | BIIB | S | 2,660 | $199.83 | $531,548 | 8,043 Direct | -24.85% | Disposed | 9.4% (price as of 2026-08-19) |
| Feb. 2, 2026 | BIIB | S | 748 | $179.30 | $134,116 | 6,271 Direct | -10.66% | Disposed | 22.0% (price as of 2026-08-19) |
| Sept. 2, 2025 | BIIB | S | 517 | $133.55 | $69,045 | 5,772 Direct | -8.22% | Disposed | 63.8% (price as of 2026-08-19) |
| May 19, 2025 | BIIB | S | 3,806 | $126.25 | $480,508 | 5,427 Direct | -41.22% | Disposed | 73.2% (price as of 2026-08-19) |
| Dec. 9, 2024 | BIIB | S | 110 | $157.21 | $17,293 | 5,426 Direct | -1.99% | Disposed | 39.1% (price as of 2026-08-19) |
| Sept. 3, 2024 | BIIB | S | 431 | $204.22 | $88,019 | 5,316 Direct | -7.50% | Disposed | 7.1% (price as of 2026-08-19) |
| April 2, 2024 | BIIB | S | 93 | $213.09 | $19,817 | 4,886 Direct | -1.87% | Disposed | 2.6% (price as of 2026-08-19) |
| Feb. 22, 2024 | BIIB | S | 262 | $221.23 | $57,962 | 4,886 Direct | -5.09% | Disposed | -1.1% (price as of 2026-08-19) |
| Feb. 16, 2024 | BIIB | S | 108 | $221.49 | $23,921 | 5,148 Direct | -2.05% | Disposed | -1.3% (price as of 2026-08-19) |
| Feb. 12, 2024 | BIIB | S | 419 | $239.45 | $100,330 | 4,516 Direct | -8.49% | Disposed | -8.7% (price as of 2026-08-19) |
| Feb. 2, 2024 | BIIB | S | 634 | $245.93 | $155,920 | 4,097 Direct | -13.40% | Disposed | -11.1% (price as of 2026-08-19) |
| Dec. 11, 2023 | BIIB | S | 110 | $248.00 | $27,280 | 3,464 Direct | -3.08% | Disposed | -11.8% (price as of 2026-08-19) |
| Sept. 5, 2023 | BIIB | S | 431 | $269.43 | $116,124 | 3,354 Direct | -11.39% | Disposed | -18.8% (price as of 2026-08-19) |
| July 3, 2023 | BIIB | S | 81 | $282.87 | $22,912 | 2,924 Direct | -2.70% | Disposed | -22.7% (price as of 2026-08-19) |
| April 4, 2023 | BIIB | S | 91 | $277.11 | $25,217 | 2,843 Direct | -3.10% | Disposed | -21.1% (price as of 2026-08-19) |
| March 28, 2023 | BIIB | S 10b5-1 | 568 | $270.06 | $153,394 | 2,842 Direct | -16.66% | Disposed | -19.0% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 13, 2026 | BIIB | Restricted Stock Unit | Common Stock (10,560) | $0.00 | Feb. 13, 2029 | 10,560 | Acquired |
| Feb. 6, 2026 | BIIB | Restricted Stock Unit | Common Stock (4,683) | $0.00 | Feb. 6, 2028 | 4,683 | Disposed |
| Feb. 6, 2026 | BIIB | Restricted Stock Unit | Common Stock (2,217) | $0.00 | Feb. 7, 2027 | 2,217 | Disposed |
| Jan. 30, 2026 | BIIB | Restricted Stock Unit | Common Stock (1,829) | $0.00 | Feb. 1, 2026 | 1,829 | Disposed |
| Aug. 29, 2025 | BIIB | Restricted Stock Unit | Common Stock (1,669) | $0.00 | Sept. 1, 2025 | 1,669 | Disposed |
| Feb. 10, 2025 | BIIB | Restricted Stock Unit | Common Stock (1,212) | $0.00 | Feb. 10, 2025 | 1,212 | Disposed |
| Feb. 7, 2025 | BIIB | Restricted Stock Unit | Common Stock (2,216) | $0.00 | Feb. 7, 2027 | 2,216 | Disposed |
| Feb. 6, 2025 | BIIB | Restricted Stock Unit | Common Stock (14,050) | $0.00 | Feb. 6, 2028 | 14,050 | Acquired |
| Jan. 31, 2025 | BIIB | Restricted Stock Unit | Common Stock (1,828) | $0.00 | Feb. 1, 2026 | 1,828 | Disposed |
| Dec. 6, 2024 | BIIB | Restricted Stock Unit | Common Stock (426) | $0.00 | Dec. 8, 2024 | 426 | Disposed |
| Aug. 30, 2024 | BIIB | Restricted Stock Unit | Common Stock (1,668) | $0.00 | Sept. 1, 2025 | 1,668 | Disposed |
| Feb. 16, 2024 | BIIB | Restricted Stock Unit | Common Stock (485) | $0.00 | Feb. 18, 2024 | 485 | Disposed |
| Feb. 16, 2024 | BIIB | Restricted Stock Unit | Common Stock (389) | $0.00 | Feb. 18, 2024 | 389 | Disposed |
| Feb. 16, 2024 | BIIB | Performance Stock Unit | Common Stock (819) | $0.00 | Feb. 18, 2024 | 819 | Disposed |
| Feb. 9, 2024 | BIIB | Restricted Stock Unit | Common Stock (1,212) | $0.00 | Feb. 10, 2025 | 1,212 | Disposed |
| Feb. 7, 2024 | BIIB | Restricted Stock Unit | Common Stock (6,650) | $0.00 | Feb. 7, 2027 | 6,650 | Acquired |
| Feb. 1, 2024 | BIIB | Restricted Stock Unit | Common Stock (1,828) | $0.00 | Feb. 1, 2026 | 1,828 | Disposed |
| Jan. 29, 2024 | BIIB | Performance Stock Unit | Common Stock (819) | $0.00 | Feb. 18, 2024 | 819 | Acquired |
| Dec. 8, 2023 | BIIB | Restricted Stock Unit | Common Stock (426) | $0.00 | Dec. 8, 2024 | 426 | Disposed |
| Sept. 1, 2023 | BIIB | Restricted Stock Unit | Common Stock (1,668) | $0.00 | Sept. 1, 2025 | 1,668 | Disposed |
| June 30, 2023 | BIIB | Restricted Stock Unit | Common Stock (315) | $0.00 | July 1, 2023 | 315 | Disposed |
| March 2, 2023 | BIIB | Restricted Stock Unit | Common Stock (341) | $0.00 | March 2, 2023 | 341 | Disposed |
| March 2, 2023 | BIIB | Restricted Stock Unit | Common Stock (297) | $0.00 | March 2, 2023 | 297 | Disposed |
| Feb. 17, 2023 | BIIB | Restricted Stock Unit | Common Stock (408) | $0.00 | Feb. 18, 2024 | 408 | Disposed |
| Feb. 17, 2023 | BIIB | Restricted Stock Unit | Common Stock (460) | $0.00 | Feb. 18, 2024 | 460 | Disposed |
| Feb. 10, 2023 | BIIB | Restricted Stock Unit | Common Stock (1,211) | $0.00 | Feb. 10, 2025 | 1,211 | Disposed |
| Feb. 1, 2023 | BIIB | Restricted Stock Unit | Common Stock (5,485) | $0.00 | Feb. 1, 2026 | 5,485 | Acquired |
| April 2, 2019 | LRMR | Stock Option (Right to Buy) | Common Stock (375,000) | $2.89 | March 3, 2029 | 375,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 17, 2023 | BIIB | Common Stock | 1,529 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (1,742) | 1,742 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (638) | 638 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (852) | 852 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (3,635) | 3,635 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (315) | 315 | Direct |
| Jan. 17, 2023 | BIIB | Restricted Stock Unit→ Common Stock (5,005) | 5,005 | Direct |