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ADELMAN BURT A
Insider
First SEC filing: Feb. 14, 2008 · Latest: Feb. 14, 2008
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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 15, 2007 | BIIB | M 10b5-1 | 37,500 | · | · | 37,500 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Oct. 15, 2007 | BIIB | M 10b5-1 | 23,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 15, 2007 | BIIB | S 10b5-1 | 60,500 | $82.00 | $4,961,000 | 12,769 Direct | -82.57% | Disposed | 172.7% (price as of 2026-10-05) |
| Oct. 15, 2007 | BIIB | M 10b5-1 | 37,500 | $67.57 | $2,533,875 | 73,269 Direct | +104.84% | Acquired | 230.9% (price as of 2026-10-05) |
| Oct. 15, 2007 | BIIB | M 10b5-1 | 23,000 | $62.28 | $1,432,440 | 35,769 Direct | +180.12% | Acquired | 259.0% (price as of 2026-10-05) |
| Aug. 30, 2007 | BIIB | M 10b5-1 | 46,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 30, 2007 | BIIB | S 10b5-1 | 46,000 | $64.03 | $2,945,380 | 12,769 Direct | -78.27% | Disposed | 249.2% (price as of 2026-10-05) |
| Aug. 30, 2007 | BIIB | M 10b5-1 | 46,000 | $49.03 | $2,255,380 | 58,769 Direct | +360.25% | Acquired | 356.0% (price as of 2026-10-05) |
| Aug. 27, 2007 | BIIB | M 10b5-1 | 8,750 | · | · | 8,750 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Aug. 27, 2007 | BIIB | S 10b5-1 | 8,750 | $63.50 | $555,625 | 12,769 Direct | -40.66% | Disposed | 252.1% (price as of 2026-10-05) |
| Aug. 27, 2007 | BIIB | M 10b5-1 | 8,750 | $43.50 | $380,625 | 21,519 Direct | +68.53% | Acquired | 414.0% (price as of 2026-10-05) |
| Aug. 17, 2007 | BIIB | M 10b5-1 | 28,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 17, 2007 | BIIB | S 10b5-1 | 5,750 | $60.46 | $347,645 | 12,769 Direct | -31.05% | Disposed | 269.8% (price as of 2026-10-05) |
| Aug. 17, 2007 | BIIB | S 10b5-1 | 23,000 | $60.46 | $1,390,580 | 18,519 Direct | -55.40% | Disposed | 269.8% (price as of 2026-10-05) |
| Aug. 17, 2007 | BIIB | M 10b5-1 | 28,750 | $45.46 | $1,306,975 | 41,519 Direct | +225.15% | Acquired | 391.8% (price as of 2026-10-05) |
| July 26, 2007 | BIIB | M 10b5-1 | 115,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| July 26, 2007 | BIIB | S 10b5-1 | 115,000 | $59.61 | $6,855,150 | 12,769 Direct | -90.01% | Disposed | 275.1% (price as of 2026-10-05) |
| July 26, 2007 | BIIB | M 10b5-1 | 115,000 | $49.61 | $5,705,150 | 127,769 Direct | +900.62% | Acquired | 350.7% (price as of 2026-10-05) |
| July 25, 2007 | BIIB | M 10b5-1 | 17,500 | · | · | 17,500 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| July 25, 2007 | BIIB | M 10b5-1 | 11,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| July 25, 2007 | BIIB | S 10b5-1 | 17,500 | $58.50 | $1,023,750 | 12,769 Direct | -57.81% | Disposed | 282.2% (price as of 2026-10-05) |
| July 25, 2007 | BIIB | S 10b5-1 | 11,500 | $57.45 | $660,675 | 30,269 Direct | -27.53% | Disposed | 289.2% (price as of 2026-10-05) |
| July 25, 2007 | BIIB | M 10b5-1 | 17,500 | $43.50 | $761,250 | 41,769 Direct | +72.11% | Acquired | 414.0% (price as of 2026-10-05) |
| July 25, 2007 | BIIB | M 10b5-1 | 11,500 | $37.45 | $430,675 | 24,269 Direct | +90.06% | Acquired | 497.0% (price as of 2026-10-05) |
| July 3, 2007 | BIIB | M 10b5-1 | 10,225 | · | · | 30,675 Direct | -25.00% | Disposed | (price as of 2026-10-05) |
| July 3, 2007 | BIIB | S 10b5-1 | 10,225 | $54.24 | $554,604 | 12,769 Direct | -44.47% | Disposed | 312.2% (price as of 2026-10-05) |
| July 3, 2007 | BIIB | M 10b5-1 | 10,225 | $44.24 | $452,354 | 22,994 Direct | +80.08% | Acquired | 405.4% (price as of 2026-10-05) |
| March 20, 2007 | BIIB | S 10b5-1 | 6,634 | $44.48 | $295,080 | 12,769 Direct | -34.19% | Disposed | 402.7% (price as of 2026-10-05) |
| March 14, 2007 | BIIB | F | 4,571 | $44.11 | $201,627 | 19,403 Direct | -19.07% | Disposed | 406.9% (price as of 2026-10-05) |
| March 14, 2007 | BIIB | A | 11,205 | · | · | 23,974 Direct | +87.75% | Acquired | (price as of 2026-10-05) |
| Feb. 13, 2007 | BIIB | S 10b5-1 | 11,871 | $49.22 | $584,291 | 12,769 Direct | -48.18% | Disposed | 354.3% (price as of 2026-10-05) |
| Feb. 12, 2007 | BIIB | A | 32,400 | · | · | 32,400 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2007 | BIIB | A | 12,500 | · | · | 24,640 Direct | +102.97% | Acquired | (price as of 2026-10-05) |
| Feb. 6, 2007 | BIIB | D | 5,467 | · | · | 10,933 Direct | -33.34% | Disposed | (price as of 2026-10-05) |
| Feb. 6, 2007 | BIIB | F | 5,596 | $48.94 | $273,868 | 12,140 Direct | -31.55% | Disposed | 356.9% (price as of 2026-10-05) |
| Feb. 6, 2007 | BIIB | M | 5,467 | · | · | 17,736 Direct | +44.56% | Acquired | (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 1,183 | $42.70 | $50,514 | 0 Direct | -100.00% | Disposed | 423.6% (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 1,716 | $42.72 | $73,308 | 1,183 Direct | -59.19% | Disposed | 423.4% (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 3,862 | $42.75 | $165,100 | 2,900 Direct | -57.11% | Disposed | 423.0% (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 3,862 | $42.77 | $165,178 | 6,762 Direct | -36.35% | Disposed | 422.8% (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 3,862 | $42.80 | $165,294 | 10,624 Direct | -26.66% | Disposed | 422.4% (price as of 2026-10-05) |
| Sept. 19, 2006 | BIIB | S 10b5-1 | 3,862 | $42.84 | $165,448 | 14,486 Direct | -21.05% | Disposed | 421.9% (price as of 2026-10-05) |
| Sept. 14, 2006 | BIIB | F | 13,152 | $43.39 | $570,665 | 18,348 Direct | -41.75% | Disposed | 415.3% (price as of 2026-10-05) |
| Sept. 14, 2006 | BIIB | A | 31,500 | · | · | 31,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 6, 2006 | BIIB | A | 40,900 | · | · | 40,900 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 6, 2006 | BIIB | A | 16,400 | · | · | 16,400 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 34,500 | · | · | 11,500 Direct | -75.00% | Disposed | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 34,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | S 10b5-1 | 34,500 | $45.64 | $1,574,580 | 0 Direct | -100.00% | Disposed | 389.9% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 34,500 | $37.45 | $1,292,025 | 34,500 Direct | · | Acquired | 497.0% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 34,500 | · | · | 11,500 Direct | -75.00% | Disposed | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 46,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 23,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | S 10b5-1 | 34,500 | $45.64 | $1,574,580 | 11,500 Direct | -75.00% | Disposed | 389.9% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 34,500 | $37.45 | $1,292,025 | 46,000 Direct | +300.00% | Acquired | 497.0% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | S 10b5-1 | 46,000 | $45.64 | $2,099,440 | 0 Direct | -100.00% | Disposed | 389.9% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 46,000 | $35.42 | $1,629,320 | 46,000 Direct | · | Acquired | 531.3% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | S 10b5-1 | 23,000 | $45.10 | $1,037,300 | 0 Direct | -100.00% | Disposed | 395.8% (price as of 2026-10-05) |
| Jan. 3, 2006 | BIIB | M | 23,000 | $15.54 | $357,420 | 23,000 Direct | · | Acquired | 1338.8% (price as of 2026-10-05) |
| Dec. 28, 2005 | BIIB | M | 20,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Dec. 28, 2005 | BIIB | S 10b5-1 | 20,500 | $44.63 | $914,915 | 0 Direct | -100.00% | Disposed | 401.0% (price as of 2026-10-05) |
| Dec. 28, 2005 | BIIB | M | 20,500 | $16.90 | $346,450 | 20,500 Direct | · | Acquired | 1223.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | M | 18,000 | $12.91 | $232,380 | 18,000 Direct | · | Acquired | 1631.9% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 200 | $38.50 | $7,700 | 7,600 Direct | -2.56% | Disposed | 480.8% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 800 | $38.48 | $30,784 | 6,800 Direct | -10.53% | Disposed | 481.1% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.47 | $23,082 | 6,200 Direct | -8.82% | Disposed | 481.2% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.45 | $23,070 | 5,600 Direct | -9.68% | Disposed | 481.5% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.43 | $23,058 | 5,000 Direct | -10.71% | Disposed | 481.8% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 100 | $38.42 | $3,842 | 4,900 Direct | -2.00% | Disposed | 482.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 900 | $38.41 | $34,569 | 4,000 Direct | -18.37% | Disposed | 482.1% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 400 | $38.40 | $15,360 | 3,600 Direct | -10.00% | Disposed | 482.3% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 900 | $38.38 | $34,542 | 2,700 Direct | -25.00% | Disposed | 482.6% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 500 | $38.37 | $19,185 | 2,200 Direct | -18.52% | Disposed | 482.7% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 300 | $38.36 | $11,508 | 1,900 Direct | -13.64% | Disposed | 482.9% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 400 | $38.35 | $15,340 | 1,500 Direct | -21.05% | Disposed | 483.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.34 | $23,004 | 900 Direct | -40.00% | Disposed | 483.2% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 400 | $38.33 | $15,332 | 500 Direct | -44.44% | Disposed | 483.3% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 400 | $38.28 | $15,312 | 100 Direct | -80.00% | Disposed | 484.1% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 100 | $38.23 | $3,823 | 0 Direct | -100.00% | Disposed | 484.9% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | M | 2,500 | $16.90 | $42,250 | 23,000 Direct | +12.20% | Acquired | 1223.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 1,200 | $38.23 | $45,876 | 21,800 Direct | -5.22% | Disposed | 484.9% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.22 | $22,932 | 21,200 Direct | -2.75% | Disposed | 485.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 400 | $38.04 | $15,216 | 20,800 Direct | -1.89% | Disposed | 487.8% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 300 | $37.82 | $11,346 | 20,500 Direct | -1.44% | Disposed | 491.2% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | M | 18,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | M | 2,500 | · | · | 20,500 Direct | -10.87% | Disposed | (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | M | 18,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 200 | $38.51 | $7,702 | 7,800 Direct | -2.50% | Disposed | 480.6% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 600 | $38.52 | $23,112 | 8,000 Direct | -6.98% | Disposed | 480.5% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 300 | $38.53 | $11,559 | 8,600 Direct | -3.37% | Disposed | 480.3% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 900 | $38.54 | $34,686 | 8,900 Direct | -9.18% | Disposed | 480.2% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 200 | $38.55 | $7,710 | 9,800 Direct | -2.00% | Disposed | 480.0% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 100 | $38.56 | $3,856 | 10,000 Direct | -0.99% | Disposed | 479.8% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 200 | $38.57 | $7,714 | 10,100 Direct | -1.94% | Disposed | 479.7% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 300 | $38.59 | $11,577 | 10,300 Direct | -2.83% | Disposed | 479.4% (price as of 2026-10-05) |
| Sept. 28, 2005 | BIIB | S 10b5-1 | 1,100 | $38.60 | $42,460 | 10,600 Direct | -9.40% | Disposed | 479.2% (price as of 2026-10-05) |
| June 28, 2004 | BIIB | S 10b5-1 | 12,953 | $63.00 | $816,039 | 12,269 Direct | -51.36% | Disposed | 254.9% (price as of 2026-10-05) |
| June 28, 2004 | BIIB | M | 12,953 | $9.67 | $125,256 | 25,222 Direct | +105.58% | Acquired | 2212.2% (price as of 2026-10-05) |
| June 28, 2004 | BIIB | S 10b5-1 | 12,953 | $63.00 | $816,039 | 12,269 Direct | -51.36% | Disposed | 254.9% (price as of 2026-10-05) |
| June 28, 2004 | BIIB | M | 12,953 | $9.67 | $125,256 | 25,222 Direct | +105.58% | Acquired | 2212.2% (price as of 2026-10-05) |
Showing latest 100 of 203 transactions
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 |
|---|---|---|---|---|---|---|---|
| Oct. 15, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $67.57 | Feb. 17, 2015 | 37,500 | Disposed |
| Oct. 15, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $62.28 | Dec. 9, 2009 | 23,000 | Disposed |
| Aug. 30, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $49.03 | Dec. 14, 2011 | 46,000 | Disposed |
| Aug. 27, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $43.50 | Feb. 6, 2014 | 8,750 | Disposed |
| Aug. 17, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $45.46 | Dec. 15, 2010 | 28,750 | Disposed |
| July 26, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $49.61 | Aug. 8, 2011 | 115,000 | Disposed |
| July 25, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $43.50 | Feb. 6, 2014 | 17,500 | Disposed |
| July 25, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $37.45 | Dec. 6, 2012 | 11,500 | Disposed |
| July 3, 2007 | BIIB | Stock Option (right to buy) | Common Stock | $44.24 | Feb. 6, 2016 | 10,225 | Disposed |
| Feb. 12, 2007 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $49.31 | Feb. 11, 2017 | 32,400 | Acquired |
| Feb. 6, 2007 | BIIB | Restricted Stock Units | Common Stock | · | Feb. 6, 2007 | 5,467 | Disposed |
| Feb. 6, 2006 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $44.24 | Feb. 5, 2016 | 40,900 | Acquired |
| Feb. 6, 2006 | BIIB | Restricted Stock Units | Common Stock | · | · | 16,400 | Acquired |
| Jan. 3, 2006 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $37.45 | Dec. 6, 2012 | 34,500 | Disposed |
| Jan. 3, 2006 | BIIB | Stock Option (right-to-buy) [F3] | Common Stock | $37.45 | Dec. 6, 2012 | 34,500 | Disposed |
| Jan. 3, 2006 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $37.45 | Dec. 6, 2012 | 34,500 | Disposed |
| Jan. 3, 2006 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $35.42 | Dec. 11, 2008 | 46,000 | Disposed |
| Jan. 3, 2006 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $15.54 | Dec. 12, 2007 | 23,000 | Disposed |
| Dec. 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $16.90 | April 18, 2006 | 20,500 | Disposed |
| Sept. 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | April 18, 2006 | 18,000 | Disposed |
| Sept. 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $16.90 | Dec. 6, 2006 | 2,500 | Disposed |
| Sept. 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | April 18, 2006 | 18,000 | Disposed |
| June 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | April 18, 2006 | 20,500 | Disposed |
| June 28, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | April 18, 2006 | 20,500 | Disposed |
| Feb. 17, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $67.57 | Feb. 17, 2015 | 75,000 | Acquired |
| Jan. 3, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | April 18, 2006 | 20,500 | Disposed |
| Dec. 27, 2004 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $9.67 | June 22, 2005 | 12,593 | Disposed |
| Sept. 27, 2004 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $9.67 | June 22, 2005 | 12,592 | Disposed |
| June 28, 2004 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock | $12.91 | June 22, 2005 | 12,593 | Disposed |
| May 5, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $12.91 | April 18, 2006 | 1,300 | Disposed |
| May 5, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $12.91 | April 18, 2006 | 1,100 | Disposed |
| May 5, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $12.91 | April 18, 2006 | 2,900 | Disposed |
| May 5, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $12.91 | April 18, 2006 | 500 | Disposed |
| May 5, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock | $12.91 | April 18, 2006 | 4,200 | Disposed |
| March 29, 2004 | BIIB | 1985 NQ Stock Option | Common Stock | $7.31 | Dec. 9, 2004 | 4,370 | Disposed |
| March 29, 2004 | BIIB | 1985 NQ Stock Option | Common Stock | $9.67 | June 22, 2005 | 8,222 | Disposed |
| Feb. 6, 2004 | BIIB | NQ Stock Option (right to buy) | Common Stock | $43.50 | Feb. 6, 2014 | 35,000 | Acquired |
| Dec. 4, 2003 | BIIB | 1985 NQ Stock Option [F2] | Common Stock | $7.31 | Dec. 9, 2004 | 8,625 | Disposed |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $37.45 | Dec. 6, 2012 | 46,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $49.03 | Dec. 14, 2011 | 46,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $49.61 | Aug. 8, 2011 | 115,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $45.46 | Dec. 15, 2010 | 28,750 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $62.28 | Dec. 9, 2009 | 23,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $35.42 | Dec. 11, 2008 | 46,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $15.54 | Dec. 12, 2007 | 23,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $16.90 | Dec. 6, 2006 | 23,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $12.91 | April 18, 2006 | 69,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $9.67 | June 22, 2005 | 46,000 | Acquired |
| Nov. 12, 2003 | BIIB | 1985 NQ Stock Option | Common Stock | $7.31 | Dec. 9, 2004 | 12,995 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).