BUCKNUM THOMAS J
Insider
First SEC filing: Feb. 22, 2005 · Latest: Feb. 22, 2005
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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. 18, 2005 | BIIB | M | 23,000 | · | · | 5,750 Direct | -80.00% | Disposed | (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | M | 57,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | M | 9,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | S | 23,000 | $67.12 | $1,543,760 | 5,750 Direct | -80.00% | Disposed | 227.6% (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | M | 23,000 | $45.46 | $1,045,580 | 28,750 Direct | +400.00% | Acquired | 383.7% (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | S | 57,500 | $67.12 | $3,859,400 | 0 Direct | -100.00% | Disposed | 227.6% (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | M | 57,500 | $47.15 | $2,711,125 | 57,500 Direct | · | Acquired | 366.3% (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | S | 9,200 | $67.12 | $617,504 | 0 Direct | -100.00% | Disposed | 227.6% (price as of 2026-10-02) |
| Feb. 18, 2005 | BIIB | M | 9,200 | $35.42 | $325,864 | 9,200 Direct | · | Acquired | 520.8% (price as of 2026-10-02) |
| Feb. 17, 2005 | BIIB | A | 55,000 | · | · | 55,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 9,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 9,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 15,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | S | 9,200 | $59.00 | $542,800 | 0 Direct | -100.00% | Disposed | 272.7% (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 9,200 | $15.54 | $142,968 | 9,200 Direct | · | Acquired | 1314.9% (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | S | 9,200 | $59.00 | $542,800 | 0 Direct | -100.00% | Disposed | 272.7% (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 9,200 | $16.90 | $155,480 | 9,200 Direct | · | Acquired | 1201.1% (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | S | 15,500 | $59.00 | $914,500 | 0 Direct | -100.00% | Disposed | 272.7% (price as of 2026-10-02) |
| Nov. 30, 2004 | BIIB | M | 15,500 | $13.04 | $202,120 | 15,500 Direct | · | Acquired | 1586.2% (price as of 2026-10-02) |
| May 25, 2004 | BIIB | M | 15,000 | $13.04 | $195,600 | 45,500 Direct | +49.18% | Acquired | 1586.2% (price as of 2026-10-02) |
| May 25, 2004 | BIIB | S | 15,000 | $62.50 | $937,500 | 30,500 Direct | -32.97% | Disposed | 251.8% (price as of 2026-10-02) |
| May 25, 2004 | BIIB | M | 15,000 | $13.04 | $195,600 | 30,500 Direct | +96.77% | Acquired | 1586.2% (price as of 2026-10-02) |
| May 25, 2004 | BIIB | S | 15,000 | $62.53 | $937,950 | 15,500 Direct | -49.18% | Disposed | 251.6% (price as of 2026-10-02) |
| May 25, 2004 | BIIB | M | 15,000 | · | · | 30,500 Direct | -32.97% | Disposed | (price as of 2026-10-02) |
| May 25, 2004 | BIIB | M | 15,000 | · | · | 15,500 Direct | -49.18% | Disposed | (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 5,000 | $13.40 | $67,000 | 80,500 Direct | +6.62% | Acquired | 1540.9% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | S | 5,000 | $58.66 | $293,300 | 75,500 Direct | -6.21% | Disposed | 274.8% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 10,000 | $13.40 | $134,000 | 75,500 Direct | +15.27% | Acquired | 1540.9% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | S | 10,000 | $58.62 | $586,200 | 65,500 Direct | -13.25% | Disposed | 275.1% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 20,000 | $13.40 | $268,000 | 65,500 Direct | +43.96% | Acquired | 1540.9% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | S | 20,000 | $58.60 | $1,172,000 | 45,500 Direct | -30.53% | Disposed | 275.2% (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 5,000 | · | · | 75,500 Direct | -6.21% | Disposed | (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 10,000 | · | · | 65,500 Direct | -13.25% | Disposed | (price as of 2026-10-02) |
| May 4, 2004 | BIIB | M | 20,000 | · | · | 45,500 Direct | -30.53% | Disposed | (price as of 2026-10-02) |
| Feb. 6, 2004 | BIIB | A | 27,000 | · | · | 27,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 6, 2004 | BIIB | A | 9,000 | · | · | 9,000 Direct | · | Acquired | (price as of 2026-10-02) |
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, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $45.46 | Dec. 15, 2010 | 23,000 | Disposed |
| Feb. 18, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $47.15 | June 10, 2009 | 57,500 | Disposed |
| Feb. 18, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $35.42 | Dec. 11, 2008 | 9,200 | Disposed |
| Feb. 17, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $67.57 | Feb. 17, 2015 | 55,000 | Acquired |
| Nov. 30, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $15.54 | Dec. 12, 2007 | 9,200 | Disposed |
| Nov. 30, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $16.90 | Dec. 6, 2006 | 9,200 | Disposed |
| Nov. 30, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $13.04 | April 22, 2006 | 15,500 | Disposed |
| May 25, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $13.04 | April 22, 2006 | 15,000 | Disposed |
| May 25, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $13.04 | April 22, 2006 | 15,000 | Disposed |
| May 4, 2004 | BIIB | Employee Stock Option (right-to-buy) [F1,F2] | Common Stock | $13.40 | April 22, 2006 | 5,000 | Disposed |
| May 4, 2004 | BIIB | Employee Stock Option (right-to-buy) [F1] | Common Stock | $13.40 | April 22, 2006 | 10,000 | Disposed |
| May 4, 2004 | BIIB | Employee Stock Option (right-to-buy) [F1] | Common Stock | $13.40 | April 22, 2006 | 20,000 | Disposed |
| Feb. 6, 2004 | BIIB | NQ Stock Option (right to buy) | Common Stock | $43.50 | Feb. 6, 2014 | 27,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).