Michael F Maclean
CIK 1383731 · View on SEC EDGAR ↗
Insider
First SEC filing: May 19, 2026 · Latest: May 19, 2026
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
0 buys (P)
0 sells (S)
Net:
$0
+ 44 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
44 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 14, 2024 | RNA | S 10b5-1 | 75,000 | $28.28 | $2,121,000 | 44,093 Direct | -62.98% | Disposed | |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 2,047 | $56.83 | $116,331 | 14,422 Direct | -12.43% | Disposed | 287.1% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 582 | $56.91 | $33,122 | 13,840 Direct | -4.04% | Disposed | 286.6% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 2,206 | $56.84 | $125,389 | 11,634 Direct | -15.94% | Disposed | 287.0% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 907 | $56.87 | $51,581 | 16,469 Direct | -5.22% | Disposed | 286.8% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 2,201 | $56.84 | $125,105 | 17,376 Direct | -11.24% | Disposed | 287.0% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 917 | $56.85 | $52,131 | 19,577 Direct | -4.47% | Disposed | 287.0% (price as of 2026-08-20) |
| Aug. 2, 2010 | BIIB | S 10b5-1 | 682 | $56.87 | $38,785 | 20,494 Direct | -3.22% | Disposed | 286.8% (price as of 2026-08-20) |
| March 19, 2010 | BIIB | S 10b5-1 | 3,757 | $60.00 | $225,420 | 20,642 Direct | -15.40% | Disposed | 266.7% (price as of 2026-08-20) |
| March 19, 2010 | BIIB | S 10b5-1 | 4,085 | $60.00 | $245,100 | 20,314 Direct | -16.74% | Disposed | 266.7% (price as of 2026-08-20) |
| Jan. 19, 2010 | BIIB | S 10b5-1 | 1,389 | $55.00 | $76,395 | 23,261 Direct | -5.63% | Disposed | 300.0% (price as of 2026-08-20) |
| Oct. 6, 2008 | BIIB | S 10b5-1 | 2,047 | $50.00 | $102,350 | 21,895 Direct | -8.55% | Disposed | 340.0% (price as of 2026-08-20) |
| July 31, 2008 | BIIB | S 10b5-1 | 1,875 | $72.77 | $136,444 | 24,895 Direct | -7.00% | Disposed | 202.3% (price as of 2026-08-20) |
| July 22, 2008 | BIIB | S 10b5-1 | 682 | $70.00 | $47,740 | 24,895 Direct | -2.67% | Disposed | 214.3% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 100 | $64.88 | $6,488 | 25,577 Direct | -0.39% | Disposed | 239.1% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 300 | $64.85 | $19,455 | 25,677 Direct | -1.15% | Disposed | 239.2% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 200 | $64.80 | $12,960 | 25,977 Direct | -0.76% | Disposed | 239.5% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 100 | $64.51 | $6,451 | 26,177 Direct | -0.38% | Disposed | 241.0% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 14 | $64.47 | $903 | 26,277 Direct | -0.05% | Disposed | 241.2% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 100 | $64.42 | $6,442 | 26,291 Direct | -0.38% | Disposed | 241.5% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 600 | $64.40 | $38,640 | 26,391 Direct | -2.22% | Disposed | 241.6% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 100 | $64.39 | $6,439 | 26,991 Direct | -0.37% | Disposed | 241.7% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 300 | $64.36 | $19,308 | 27,091 Direct | -1.10% | Disposed | 241.8% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 100 | $63.66 | $6,366 | 27,391 Direct | -0.36% | Disposed | 245.6% (price as of 2026-08-20) |
| April 8, 2008 | BIIB | S 10b5-1 | 300 | $63.52 | $19,056 | 27,491 Direct | -1.08% | Disposed | 246.3% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| April 1, 2026 | CAMP | Stock Option (Right to Buy) | Common Stock (56,000) | $4.46 | March 31, 2036 | 56,000 | Acquired |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (50,000) | $31.42 | Jan. 5, 2035 | 50,000 | Disposed |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (106,000) | $10.16 | Jan. 19, 2034 | 106,000 | Disposed |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (60,125) | $6.57 | Sept. 10, 2033 | 60,125 | Disposed |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (148,000) | $22.47 | Jan. 19, 2033 | 148,000 | Disposed |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (131,250) | $14.22 | Jan. 20, 2032 | 131,250 | Disposed |
| Feb. 27, 2026 | RNA | Stock Option (Right to Buy) | Common Stock (92,000) | $22.34 | Feb. 1, 2031 | 92,000 | Disposed |
| May 14, 2024 | RNA | Stock Option (Right to Buy) | Common Stock (75,000) | $8.82 | May 14, 2030 | 75,000 | Disposed |
| Jan. 20, 2023 | RNA | Stock Option (Right to Buy) | Common Stock (148,000) | $22.47 | Jan. 19, 2033 | 148,000 | Acquired |
| Jan. 21, 2022 | RNA | Stock Option (Right to Buy) | Common Stock (131,250) | $14.22 | Jan. 20, 2032 | 131,250 | Acquired |
| Feb. 2, 2021 | RNA | Stock Option (Right to Buy) | Common Stock (92,000) | $22.34 | Feb. 1, 2031 | 92,000 | Acquired |
| Feb. 23, 2010 | BIIB | Restricted Stock Unit | Common Stock (6,114) | — | Feb. 23, 2014 | 6,114 | Acquired |
| Nov. 1, 2009 | BIIB | Restricted Stock Unit | Common Stock (1,000) | $0.00 | Oct. 31, 2016 | 1,000 | Disposed |
| Feb. 24, 2009 | BIIB | Stock Option (Right to Buy) | Common Stock (10,715) | $49.65 | Feb. 24, 2019 | 10,715 | Acquired |
| Nov. 1, 2008 | BIIB | Restricted Stock Unit | Common Stock (1,000) | $0.00 | Oct. 31, 2016 | 1,000 | Disposed |
| July 31, 2008 | BIIB | Stock Option (right to buy) | Common Stock (1,875) | $47.77 | Nov. 1, 2016 | 1,875 | Disposed |
| Feb. 12, 2008 | BIIB | Stock Option (right to buy) | Common Stock (23,130) | $60.56 | Feb. 11, 2018 | 23,130 | Acquired |
| Nov. 1, 2007 | BIIB | Restricted Stock Unit | Common Stock (1,000) | $0.00 | Nov. 1, 2007 | 1,000 | Disposed |
| Feb. 12, 2007 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock (25,900) | $49.31 | Feb. 11, 2017 | 25,900 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 19, 2026 | RACC | Class B Ordinary Shares→ Class A Ordinary Shares (39,130) | 39,130 | Direct |
| June 11, 2020 | RNA | Stock Option (Right to Buy)→ Common Stock (284,427) | 284,427 | Direct |
| Dec. 15, 2006 | BIIB | Stock Option (right to buy)→ Common Stock (7,500) | 7,500 | Direct |
| Dec. 15, 2006 | BIIB | Restricted Stock Unit→ Common Stock (3,000) | 3,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
CIK 1599901
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $490,800 | — | $3,340,440 | $762,172 | $331,300 | — | $17,010 | $4,941,722 |
| 2023 | $471,900 | — | $3,801,386 | — | $188,760 | — | $14,082 | $4,476,128 |
| 2022 | $451,500 | — | — | — | $234,800 | — | $15,336 | $2,035,530 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.