Mark C Wiggins
CIK 1236540 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 2, 2004 · Latest: Aug. 2, 2004
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Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 22 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
22 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 26, 2008 | BIIB | S 10b5-1 | 734 | $50.00 | $36,700 | 22,780 Direct | -3.12% | Disposed | 337.4% (price as of 2026-08-19) |
| July 15, 2008 | BIIB | S 10b5-1 | 6,250 | $64.00 | $400,000 | 21,911 Direct | -22.19% | Disposed | 241.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.41 | $6,141 | 21,447 Direct | -0.46% | Disposed | 256.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 300 | $61.17 | $18,351 | 21,547 Direct | -1.37% | Disposed | 257.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.14 | $12,228 | 21,847 Direct | -0.91% | Disposed | 257.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.13 | $12,226 | 22,047 Direct | -0.90% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.12 | $12,224 | 22,247 Direct | -0.89% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.06 | $30,530 | 22,447 Direct | -2.18% | Disposed | 258.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.02 | $30,510 | 22,947 Direct | -2.13% | Disposed | 258.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.00 | $30,500 | 23,447 Direct | -2.09% | Disposed | 258.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.84 | $24,336 | 23,947 Direct | -1.64% | Disposed | 259.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.83 | $24,332 | 24,347 Direct | -1.62% | Disposed | 259.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 82 | $60.82 | $4,987 | 24,747 Direct | -0.33% | Disposed | 259.6% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 4 | $60.81 | $243 | 24,829 Direct | -0.02% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.74 | $12,148 | 24,833 Direct | -0.80% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.73 | $6,073 | 25,033 Direct | -0.40% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.69 | $24,276 | 25,133 Direct | -1.57% | Disposed | 260.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.67 | $12,134 | 25,533 Direct | -0.78% | Disposed | 260.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.41 | $6,141 | 11,017 Direct | -0.90% | Disposed | 256.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 300 | $61.17 | $18,351 | 11,117 Direct | -2.63% | Disposed | 257.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.14 | $12,228 | 11,417 Direct | -1.72% | Disposed | 257.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.13 | $12,226 | 11,617 Direct | -1.69% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $61.12 | $12,224 | 11,817 Direct | -1.66% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.06 | $30,530 | 12,017 Direct | -3.99% | Disposed | 258.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.02 | $30,510 | 12,517 Direct | -3.84% | Disposed | 258.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 500 | $61.00 | $30,500 | 13,017 Direct | -3.70% | Disposed | 258.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.84 | $24,336 | 13,517 Direct | -2.87% | Disposed | 259.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.83 | $24,332 | 13,917 Direct | -2.79% | Disposed | 259.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 82 | $60.82 | $4,987 | 14,317 Direct | -0.57% | Disposed | 259.6% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 4 | $60.81 | $243 | 14,399 Direct | -0.03% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.74 | $12,148 | 14,403 Direct | -1.37% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.73 | $6,073 | 14,603 Direct | -0.68% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.69 | $24,276 | 14,703 Direct | -2.65% | Disposed | 260.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.67 | $12,134 | 15,103 Direct | -1.31% | Disposed | 260.5% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 3,000 | $61.87 | $185,610 | 16,521 Direct | -15.37% | Disposed | 253.5% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 100 | $61.70 | $6,170 | 19,521 Direct | -0.51% | Disposed | 254.5% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 100 | $61.61 | $6,161 | 19,621 Direct | -0.51% | Disposed | 255.0% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 300 | $61.60 | $18,480 | 19,721 Direct | -1.50% | Disposed | 255.0% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 200 | $61.23 | $12,246 | 20,021 Direct | -0.99% | Disposed | 257.2% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 100 | $61.22 | $6,122 | 20,221 Direct | -0.49% | Disposed | 257.3% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 600 | $61.19 | $36,714 | 20,321 Direct | -2.87% | Disposed | 257.4% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 300 | $61.18 | $18,354 | 20,921 Direct | -1.41% | Disposed | 257.5% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 500 | $61.17 | $30,585 | 21,221 Direct | -2.30% | Disposed | 257.5% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 300 | $61.16 | $18,348 | 21,721 Direct | -1.36% | Disposed | 257.6% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 600 | $61.15 | $36,690 | 22,021 Direct | -2.65% | Disposed | 257.7% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 400 | $61.14 | $24,456 | 22,621 Direct | -1.74% | Disposed | 257.7% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 600 | $61.13 | $36,678 | 23,021 Direct | -2.54% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 600 | $61.12 | $36,672 | 23,621 Direct | -2.48% | Disposed | 257.8% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 1,600 | $61.11 | $97,776 | 24,221 Direct | -6.20% | Disposed | 257.9% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 400 | $61.10 | $24,440 | 25,821 Direct | -1.53% | Disposed | 258.0% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 700 | $61.08 | $42,756 | 26,221 Direct | -2.60% | Disposed | 258.1% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 200 | $60.99 | $12,198 | 26,921 Direct | -0.74% | Disposed | 258.6% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 200 | $60.81 | $12,162 | 27,121 Direct | -0.73% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 800 | $60.80 | $48,640 | 27,321 Direct | -2.84% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 225 | $60.69 | $13,655 | 28,121 Direct | -0.79% | Disposed | 260.4% (price as of 2026-08-19) |
| Feb. 6, 2008 | BIIB | S 10b5-1 | 100 | $60.64 | $6,064 | 28,346 Direct | -0.35% | Disposed | 260.7% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.47 | $17,241 | 12,235 Direct | -2.39% | Disposed | 280.6% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 400 | $57.41 | $22,964 | 12,535 Direct | -3.09% | Disposed | 281.0% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 200 | $57.36 | $11,472 | 12,935 Direct | -1.52% | Disposed | 281.3% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.35 | $17,205 | 13,135 Direct | -2.23% | Disposed | 281.4% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 500 | $57.34 | $28,670 | 13,435 Direct | -3.59% | Disposed | 281.4% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.29 | $17,187 | 13,935 Direct | -2.11% | Disposed | 281.8% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 100 | $57.24 | $5,724 | 14,235 Direct | -0.70% | Disposed | 282.1% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 700 | $57.23 | $40,061 | 14,335 Direct | -4.66% | Disposed | 282.2% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 400 | $57.22 | $22,888 | 15,035 Direct | -2.59% | Disposed | 282.2% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.21 | $17,163 | 15,435 Direct | -1.91% | Disposed | 282.3% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 100 | $57.19 | $5,719 | 15,735 Direct | -0.63% | Disposed | 282.4% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.18 | $17,154 | 15,835 Direct | -1.86% | Disposed | 282.5% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 1,169 | $57.17 | $66,832 | 16,135 Direct | -6.76% | Disposed | 282.6% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 400 | $57.16 | $22,864 | 17,304 Direct | -2.26% | Disposed | 282.6% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 100 | $57.15 | $5,715 | 17,704 Direct | -0.56% | Disposed | 282.7% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 200 | $57.13 | $11,426 | 17,804 Direct | -1.11% | Disposed | 282.8% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $57.12 | $17,136 | 18,004 Direct | -1.64% | Disposed | 282.9% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 400 | $57.07 | $22,828 | 18,304 Direct | -2.14% | Disposed | 283.2% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 100 | $57.02 | $5,702 | 18,704 Direct | -0.53% | Disposed | 283.6% (price as of 2026-08-19) |
| Dec. 31, 2007 | BIIB | S 10b5-1 | 300 | $56.96 | $17,088 | 18,804 Direct | -1.57% | Disposed | 284.0% (price as of 2026-08-19) |
| Oct. 15, 2007 | BIIB | S 10b5-1 | 89,645 | $82.00 | $7,350,890 | 12,235 Direct | -87.99% | Disposed | 166.7% (price as of 2026-08-19) |
| Sept. 6, 2007 | BIIB | S 10b5-1 | 66,639 | $65.00 | $4,331,535 | 12,235 Direct | -84.49% | Disposed | 236.5% (price as of 2026-08-19) |
Showing latest 100 of 219 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 |
|---|---|---|---|---|---|---|---|
| July 25, 2008 | BIIB | Stock Option (right to buy) | Common Stock (1,603) | $35.37 | Jan. 21, 2013 | 1,603 | Disposed |
| July 15, 2008 | BIIB | Stock Option (right to buy) | Common Stock (6,250) | $59.39 | June 15, 2014 | 6,250 | Disposed |
| Feb. 12, 2008 | BIIB | Stock Option (right to buy) | Common Stock (29,210) | $60.56 | Feb. 11, 2018 | 29,210 | Acquired |
| Feb. 6, 2008 | BIIB | Restricted Stock Unit | Common Stock (6,367) | $0.00 | Feb. 6, 2008 | 6,367 | Disposed |
| Feb. 6, 2008 | BIIB | Stock Option (right to buy) | Common Stock (11,925) | $44.24 | Feb. 6, 2016 | 11,925 | Disposed |
| Dec. 31, 2007 | BIIB | Stock Option (right to buy) | Common Stock (6,869) | $43.50 | Feb. 6, 2014 | 6,869 | Disposed |
| Oct. 15, 2007 | BIIB | Stock Option (right to buy) | Common Stock (25,500) | $67.57 | Feb. 17, 2015 | 25,500 | Disposed |
| Oct. 15, 2007 | BIIB | Stock Option (right to buy) | Common Stock (64,145) | $65.06 | Jan. 23, 2012 | 64,145 | Disposed |
| Sept. 6, 2007 | BIIB | Stock Option (right to buy) | Common Stock (66,639) | $57.33 | Jan. 16, 2001 | 66,639 | Disposed |
| Aug. 27, 2007 | BIIB | Stock option (right to buy) | Common Stock (18,750) | $59.39 | June 15, 2014 | 18,750 | Disposed |
| July 12, 2007 | BIIB | Stock Option (right to buy) | Common Stock (41,128) | $35.21 | Jan. 12, 2010 | 41,128 | Disposed |
| July 3, 2007 | BIIB | Stock Option (right to buy) | CommonStock (15,697) | $35.37 | Jan. 21, 2013 | 15,697 | Disposed |
| June 27, 2007 | BIIB | Stock Option (right to buy) | Common Stock (11,925) | $44.24 | Feb. 6, 2016 | 11,925 | Disposed |
| May 30, 2007 | BIIB | Stock Option (right to buy) | Common Stock (6,869) | $43.50 | Feb. 6, 2014 | 6,869 | Disposed |
| May 23, 2007 | BIIB | Stock Option (right to buy) [F2] | Common Stock (10,000) | $35.21 | Jan. 12, 2010 | 10,000 | Disposed |
| May 16, 2007 | BIIB | Stock Option (right to buy) [F3] | Common Stock (5,000) | $35.37 | Jan. 21, 2013 | 5,000 | Disposed |
| April 23, 2007 | BIIB | Stock Option (right to buy) [F3] | Common Stock (13,737) | $43.50 | Feb. 6, 2014 | 13,737 | Disposed |
| April 23, 2007 | BIIB | Stock Option (right to buy) [F3] | Common Stock (10,000) | $35.37 | Jan. 21, 2013 | 20,000 | Disposed |
| April 23, 2007 | BIIB | Stock Option (right to buy) [F3] | Common Stock (10,000) | $35.21 | Jan. 12, 2010 | 10,000 | Disposed |
| April 16, 2007 | BIIB | Stock Option (Right-to-buy) [F3] | Common Stock (5,000) | $35.37 | Jan. 21, 2013 | 5,000 | Disposed |
| March 15, 2007 | BIIB | Stock Option (right-to-buy) [F3] | Common Stock (5,000) | $35.37 | Jan. 21, 2013 | 5,000 | Disposed |
| Feb. 15, 2007 | BIIB | Stock Option (right-to-buy) | Common Stock (5,000) | $35.37 | Jan. 21, 2013 | 5,000 | Disposed |
| Feb. 12, 2007 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock (29,800) | $49.31 | Feb. 11, 2017 | 29,800 | Acquired |
| Feb. 6, 2007 | BIIB | Restricted Stock Unit | Common Stock (6,367) | — | Feb. 6, 2007 | 6,367 | Disposed |
| Jan. 16, 2007 | BIIB | Stock Option (right-to-buy) | Common Stock (5,000) | $35.37 | Jan. 21, 2013 | 5,000 | Disposed |
| Feb. 6, 2006 | BIIB | Restricted Stock Units [F3] | Common Stock (19,100) | — | — | 19,100 | Acquired |
| Feb. 6, 2006 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (47,700) | $44.24 | Feb. 5, 2016 | 47,700 | Acquired |
| Feb. 17, 2005 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (51,000) | $67.57 | Feb. 17, 2015 | 51,000 | Acquired |
| Jan. 3, 2005 | BIIB | Stock Option (right-to-buy) | Common Stock (12,500) | $35.21 | Jan. 12, 2010 | 12,500 | Acquired |
| Jan. 3, 2005 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock (12,500) | $35.21 | Jan. 12, 2010 | 12,500 | Acquired |
| Dec. 15, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (3,632) | $5.58 | May 11, 2008 | 3,632 | Acquired |
| Dec. 15, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (5,372) | $35.21 | Jan. 12, 2010 | 5,372 | Acquired |
| Oct. 4, 2004 | BIIB | Stock Option (right-to-buy) [F3] | Common Stock (12,500) | $35.21 | Jan. 12, 2010 | 12,500 | Disposed |
| July 30, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (6,318) | $5.58 | May 11, 2008 | 6,318 | Disposed |
| July 30, 2004 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (10,000) | $35.21 | Jan. 12, 2010 | 10,000 | Disposed |
| Nov. 5, 2003 | BIIB | Incentive Stock Option (right to buy) [F2] | Common Stock [F2] (3,400) | $5.58 | May 10, 2008 | 3,400 | Disposed |
| Aug. 13, 2003 | BIIB | Incentive Stock Option (right to buy) [F1] | Common Stock [F1] (5,000) | $5.58 | May 10, 2008 | 5,000 | Disposed |
| Aug. 1, 2003 | BIIB | Incentive Stock Option (right to buy) [F1] | Common Stock [F1] (5,000) | $5.58 | May 10, 2008 | 5,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 18 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 2, 2004 | BIIB | Common Stock | — | Indirect |
| Aug. 2, 2004 | BIIB | Common Stock | 19,158 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (9,950) | 9,950 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (101,500) | 101,500 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (68,250) | 68,250 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (65,800) | 65,800 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (62,300) | 62,300 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (27,475) | 27,475 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (25,000) | 25,000 | Direct |
| Aug. 2, 2004 | BIIB | Common Stock | 37,318 | Indirect |
| Aug. 2, 2004 | BIIB | Common Stock | 19,158 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (9,950) | 9,950 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (101,500) | 101,500 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (68,250) | 68,250 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (65,800) | 65,800 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (62,300) | 62,300 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (27,475) | 27,475 | Direct |
| Aug. 2, 2004 | BIIB | Stock Option (right-to-buy)→ Common Stock (25,000) | 25,000 | Direct |