Michel Vounatsos
CIK 1672709 · View on SEC EDGAR ↗
First SEC filing: April 22, 2016 · Latest: April 22, 2016
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 30, 2020 | BIIB | P | 3,100 | $241.31 | $748,061 | 34,810 Direct | +9.78% | Acquired | -10.6% (price as of 2026-08-21) |
| May 1, 2019 | BIIB | P | 4,351 | $231.48 | $1,007,169 | 21,007 Direct | +26.12% | Acquired | -6.8% (price as of 2026-08-21) |
| Dec. 29, 2017 | BIIB | P 10b5-1 | 780 | $320.55 | $250,029 | 4,879 Direct | +19.03% | Acquired | -32.7% (price as of 2026-08-21) |
| May 1, 2017 | BIIB | P 10b5-1 | 1,402 | $271.35 | $380,433 | 2,927 Direct | +91.93% | Acquired | -20.5% (price as of 2026-08-21) |
| Feb. 27, 2017 | BIIB | P 10b5-1 | 1,333 | $285.39 | $380,425 | 1,434 Direct | +1319.80% | Acquired | -24.4% (price as of 2026-08-21) |
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. 18, 2022 | BIIB | Restricted Stock Unit | Common Stock (8,909) | $0.00 | Feb. 18, 2024 | 8,909 | Disposed |
| Feb. 18, 2022 | BIIB | Restricted Stock Unit | Common Stock (6,191) | $0.00 | Feb. 18, 2024 | 6,191 | Disposed |
| Feb. 12, 2022 | BIIB | Restricted Stock Unit | Common Stock (8,163) | $0.00 | Feb. 12, 2023 | 8,163 | Disposed |
| Feb. 12, 2022 | BIIB | Restricted Stock Unit | Common Stock (4,395) | $0.00 | Feb. 12, 2023 | 4,395 | Disposed |
| Feb. 12, 2022 | BIIB | Restricted Stock Unit | Common Stock (8,205) | $0.00 | Feb. 12, 2022 | 8,205 | Disposed |
| Feb. 12, 2022 | BIIB | Restricted Stock Unit | Common Stock (4,321) | $0.00 | Feb. 12, 2022 | 4,321 | Disposed |
| Feb. 10, 2022 | BIIB | Restricted Stock Unit | Common Stock (28,405) | $0.00 | Feb. 10, 2025 | 28,405 | Acquired |
| Feb. 18, 2021 | BIIB | Restricted Stock Unit | Common Stock (45,310) | $0.00 | Feb. 18, 2024 | 45,310 | Acquired |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (7,221) | $0.00 | Feb. 12, 2023 | 7,221 | Disposed |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (5,337) | $0.00 | Feb. 12, 2023 | 5,337 | Disposed |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (7,263) | $0.00 | Feb. 12, 2022 | 7,263 | Disposed |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (5,259) | $0.00 | Feb. 12, 2022 | 5,259 | Disposed |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (6,419) | $0.00 | Feb. 12, 2021 | 6,419 | Disposed |
| Feb. 12, 2021 | BIIB | Restricted Stock Unit | Common Stock (5,693) | $0.00 | Feb. 12, 2021 | 5,693 | Disposed |
| Feb. 15, 2020 | BIIB | Restricted Stock Unit | Common Stock (3,657) | $0.00 | Feb. 15, 2020 | 3,657 | Disposed |
| Feb. 15, 2020 | BIIB | Restricted Stock Unit | Common Stock (4,847) | $0.00 | Feb. 15, 2020 | 4,847 | Disposed |
| Feb. 12, 2020 | BIIB | Restricted Stock Unit | Common Stock (37,680) | $0.00 | Feb. 12, 2023 | 37,680 | Acquired |
| Feb. 12, 2020 | BIIB | Restricted Stock Unit | Common Stock (6,762) | $0.00 | Feb. 12, 2022 | 6,762 | Disposed |
| Feb. 12, 2020 | BIIB | Restricted Stock Unit | Common Stock (5,760) | $0.00 | Feb. 12, 2022 | 5,760 | Disposed |
| Feb. 12, 2020 | BIIB | Restricted Stock Unit | Common Stock (5,870) | $0.00 | Feb. 12, 2021 | 5,870 | Disposed |
| Feb. 12, 2020 | BIIB | Restricted Stock Unit | Common Stock (6,234) | $0.00 | Feb. 12, 2021 | 6,234 | Disposed |
| May 2, 2019 | BIIB | Restricted Stock Unit | Common Stock (1,772) | $0.00 | May 2, 2019 | 1,772 | Disposed |
| May 2, 2019 | BIIB | Restricted Stock Unit | Common Stock (1,480) | $0.00 | May 2, 2019 | 1,480 | Disposed |
| Feb. 15, 2019 | BIIB | Restricted Stock Unit | Common Stock (3,229) | $0.00 | Feb. 15, 2020 | 3,229 | Disposed |
| Feb. 15, 2019 | BIIB | Restricted Stock Unit | Common Stock (5,269) | $0.00 | Feb. 15, 2020 | 5,269 | Disposed |
| Feb. 12, 2019 | BIIB | Restricted Stock Unit | Common Stock (37,570) | $0.00 | Feb. 12, 2022 | 37,570 | Acquired |
| Feb. 12, 2019 | BIIB | Restricted Stock Unit | Common Stock (5,205) | $0.00 | Feb. 12, 2021 | 5,205 | Disposed |
| Feb. 12, 2019 | BIIB | Restricted Stock Unit | Common Stock (6,899) | $0.00 | Feb. 12, 2021 | 6,899 | Disposed |
| May 2, 2018 | BIIB | Restricted Stock Unit | Common Stock | $0.00 | May 2, 2019 | 1,557 | Disposed |
| May 2, 2018 | BIIB | Restricted Stock Unit | Common Stock (1,687) | $0.00 | May 2, 2019 | 1,687 | Disposed |
| Feb. 15, 2018 | BIIB | Restricted Stock Unit | Common Stock (3,144) | $0.00 | Feb. 15, 2020 | 3,144 | Disposed |
| Feb. 15, 2018 | BIIB | Restricted Stock Unit | Common Stock (5,354) | $0.00 | Feb. 15, 2020 | 5,354 | Disposed |
| Feb. 12, 2018 | BIIB | Restricted Stock Unit | Common Stock (36,320) | $0.00 | Feb. 12, 2021 | 36,320 | Acquired |
| May 2, 2017 | BIIB | Restricted Stock Unit | Common Stock (1,508) | $0.00 | May 2, 2019 | 1,508 | Disposed |
| May 2, 2017 | BIIB | Restricted Stock Unit | Common Stock | $0.00 | May 2, 2019 | 1,736 | Disposed |
| Feb. 15, 2017 | BIIB | Restricted Stock Unit | Common Stock (25,500) | $0.00 | Feb. 15, 2020 | 25,500 | Acquired |
| May 2, 2016 | BIIB | Restricted Stock Unit | Common Stock (9,520) | $0.00 | May 2, 2019 | 9,520 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 22, 2016 | BIIB | Common Stock | 0 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2022 | $1,626,039 | — | — | — | — | $541,661 | $9,067,789 | $26,625,221 |
| 2021 | $1,533,173 | — | $14,084,314 | — | $1,153,125 | $494,290 | $424,763 | $17,689,665 |
| 2020 | $1,488,462 | — | $13,887,064 | — | $2,565,000 | $264,358 | $454,945 | $18,659,829 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.