Robert A Hamm
CIK 1335018 · View on SEC EDGAR ↗
Insider
First SEC filing: Oct. 21, 2005 · Latest: Oct. 21, 2005
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 40 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
40 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 23, 2010 | BIIB | S 10b5-1 | 703 | $52.19 | $36,690 | 27,212 Direct | -2.52% | Disposed | 319.1% (price as of 2026-08-19) |
| April 23, 2010 | BIIB | S 10b5-1 | 710 | $52.16 | $37,034 | 27,915 Direct | -2.48% | Disposed | 319.3% (price as of 2026-08-19) |
| April 23, 2010 | BIIB | S 10b5-1 | 2,138 | $52.20 | $111,604 | 28,625 Direct | -6.95% | Disposed | 319.0% (price as of 2026-08-19) |
| April 23, 2010 | BIIB | S 10b5-1 | 2,117 | $52.20 | $110,507 | 30,763 Direct | -6.44% | Disposed | 319.0% (price as of 2026-08-19) |
| Feb. 18, 2010 | BIIB | S 10b5-1 | 3,387 | $56.16 | $190,214 | 22,946 Direct | -12.86% | Disposed | 289.4% (price as of 2026-08-19) |
| Feb. 18, 2010 | BIIB | S 10b5-1 | 3,194 | $56.15 | $179,343 | 26,333 Direct | -10.82% | Disposed | 289.5% (price as of 2026-08-19) |
| Nov. 4, 2009 | BIIB | S 10b5-1 | 524 | $42.84 | $22,448 | 32,626 Direct | -1.58% | Disposed | 410.5% (price as of 2026-08-19) |
| Nov. 4, 2009 | BIIB | S 10b5-1 | 2,330 | $42.80 | $99,724 | 33,150 Direct | -6.57% | Disposed | 411.0% (price as of 2026-08-19) |
| June 22, 2009 | BIIB | S 10b5-1 | 1,000 | $50.77 | $50,770 | 37,526 Direct | -2.60% | Disposed | 330.8% (price as of 2026-08-19) |
| June 22, 2009 | BIIB | S 10b5-1 | 2,194 | $49.75 | $109,152 | 38,526 Direct | -5.39% | Disposed | 339.6% (price as of 2026-08-19) |
| Feb. 19, 2009 | BIIB | S 10b5-1 | 3,412 | $50.90 | $173,671 | 27,660 Direct | -10.98% | Disposed | 329.7% (price as of 2026-08-19) |
| Feb. 11, 2009 | BIIB | S 10b5-1 | 3,670 | $50.76 | $186,289 | 34,146 Direct | -9.70% | Disposed | 330.9% (price as of 2026-08-19) |
| Nov. 6, 2008 | BIIB | S 10b5-1 | 2,130 | $44.53 | $94,849 | 34,871 Direct | -5.76% | Disposed | 391.2% (price as of 2026-08-19) |
| Nov. 6, 2008 | BIIB | S 10b5-1 | 200 | $44.96 | $8,992 | 34,671 Direct | -0.57% | Disposed | 386.5% (price as of 2026-08-19) |
| Nov. 6, 2008 | BIIB | S 10b5-1 | 525 | $44.61 | $23,420 | 34,146 Direct | -1.51% | Disposed | 390.3% (price as of 2026-08-19) |
| July 22, 2008 | BIIB | S 10b5-1 | 156,086 | $70.00 | $10,926,020 | 39,046 Direct | -79.99% | Disposed | 212.4% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 400 | $64.23 | $25,692 | 39,046 Direct | -1.01% | Disposed | 240.5% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 13 | $64.22 | $835 | 39,446 Direct | -0.03% | Disposed | 240.6% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 3 | $64.13 | $192 | 39,459 Direct | -0.01% | Disposed | 241.0% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $64.09 | $6,409 | 39,462 Direct | -0.25% | Disposed | 241.3% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 297 | $64.07 | $19,029 | 39,562 Direct | -0.75% | Disposed | 241.4% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 400 | $63.95 | $25,580 | 39,859 Direct | -0.99% | Disposed | 242.0% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $63.87 | $6,387 | 40,259 Direct | -0.25% | Disposed | 242.4% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $63.80 | $6,380 | 40,359 Direct | -0.25% | Disposed | 242.8% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $63.79 | $6,379 | 40,459 Direct | -0.25% | Disposed | 242.9% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 700 | $63.75 | $44,625 | 40,559 Direct | -1.70% | Disposed | 243.1% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 200 | $63.72 | $12,744 | 41,259 Direct | -0.48% | Disposed | 243.2% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 200 | $63.70 | $12,740 | 41,459 Direct | -0.48% | Disposed | 243.3% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 200 | $63.55 | $12,710 | 41,659 Direct | -0.48% | Disposed | 244.2% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $63.54 | $6,354 | 41,859 Direct | -0.24% | Disposed | 244.2% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 200 | $63.51 | $12,702 | 41,959 Direct | -0.47% | Disposed | 244.4% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 200 | $63.49 | $12,698 | 42,159 Direct | -0.47% | Disposed | 244.5% (price as of 2026-08-19) |
| April 15, 2008 | BIIB | S 10b5-1 | 100 | $63.48 | $6,348 | 42,359 Direct | -0.24% | Disposed | 244.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.41 | $6,141 | 42,459 Direct | -0.23% | Disposed | 256.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 300 | $61.20 | $18,360 | 42,559 Direct | -0.70% | Disposed | 257.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 600 | $61.06 | $36,636 | 42,859 Direct | -1.38% | Disposed | 258.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.02 | $6,102 | 43,459 Direct | -0.23% | Disposed | 258.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 700 | $61.00 | $42,700 | 43,559 Direct | -1.58% | Disposed | 258.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.94 | $6,094 | 44,259 Direct | -0.23% | Disposed | 258.9% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.93 | $6,093 | 44,359 Direct | -0.22% | Disposed | 259.0% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 79 | $60.88 | $4,810 | 44,459 Direct | -0.18% | Disposed | 259.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.86 | $6,086 | 44,538 Direct | -0.22% | Disposed | 259.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.81 | $24,324 | 44,638 Direct | -0.89% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.78 | $12,156 | 45,038 Direct | -0.44% | Disposed | 259.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 303 | $60.77 | $18,413 | 45,238 Direct | -0.67% | Disposed | 259.9% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 97 | $60.74 | $5,892 | 45,541 Direct | -0.21% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.73 | $12,146 | 45,638 Direct | -0.44% | Disposed | 260.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 300 | $60.49 | $18,147 | 45,838 Direct | -0.65% | Disposed | 261.6% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.41 | $6,141 | 28,419 Direct | -0.35% | Disposed | 256.1% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 300 | $61.20 | $18,360 | 28,519 Direct | -1.04% | Disposed | 257.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 600 | $61.06 | $36,636 | 28,819 Direct | -2.04% | Disposed | 258.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $61.02 | $6,102 | 29,419 Direct | -0.34% | Disposed | 258.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 700 | $61.00 | $42,700 | 29,519 Direct | -2.32% | Disposed | 258.5% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.94 | $6,094 | 30,219 Direct | -0.33% | Disposed | 258.9% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.93 | $6,093 | 30,319 Direct | -0.33% | Disposed | 259.0% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 79 | $60.88 | $4,810 | 30,419 Direct | -0.26% | Disposed | 259.2% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 100 | $60.86 | $6,086 | 30,498 Direct | -0.33% | Disposed | 259.4% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 400 | $60.81 | $24,324 | 30,598 Direct | -1.29% | Disposed | 259.7% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 200 | $60.78 | $12,156 | 30,998 Direct | -0.64% | Disposed | 259.8% (price as of 2026-08-19) |
| Feb. 12, 2008 | BIIB | S 10b5-1 | 303 | $60.77 | $18,413 | 31,198 Direct | -0.96% | Disposed | 259.9% (price as of 2026-08-19) |
Showing latest 100 of 131 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 |
|---|---|---|---|---|---|---|---|
| Feb. 23, 2010 | BIIB | Restricted Stock Unit | Common Stock (48,916) | — | Feb. 23, 2014 | 48,916 | Acquired |
| April 1, 2009 | BIIB | Stock Option (Right to Buy) | Common Stock (9,740) | $51.88 | March 31, 2019 | 9,740 | Acquired |
| Feb. 24, 2009 | BIIB | Stock Option (Right to Buy) | Common Stock (25,000) | $49.65 | Feb. 24, 2019 | 25,000 | Acquired |
| Feb. 6, 2009 | BIIB | Restricted Stock Unit | Common Stock (5,466) | — | Feb. 6, 2009 | 5,466 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (20,124) | $37.45 | Dec. 6, 2012 | 20,124 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (10,062) | $49.03 | Dec. 14, 2011 | 10,062 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (5,750) | $45.46 | Dec. 15, 2010 | 5,750 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (28,750) | $62.28 | Dec. 9, 2009 | 28,750 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (9,725) | $49.31 | Feb. 12, 2017 | 9,725 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (20,450) | $44.24 | Feb. 6, 2016 | 20,450 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (33,750) | $67.57 | Feb. 17, 2015 | 33,750 | Disposed |
| July 22, 2008 | BIIB | Stock Option (right to buy) | Common Stock (27,475) | $43.50 | Feb. 6, 2014 | 27,475 | Disposed |
| Feb. 12, 2008 | BIIB | Stock Option (right to buy) | Common Stock (39,320) | $60.56 | Feb. 11, 2018 | 39,320 | Acquired |
| Feb. 6, 2008 | BIIB | Restricted Stock Unit | Common Stock (5,467) | $0.00 | Feb. 6, 2008 | 5,467 | Disposed |
| Nov. 1, 2007 | BIIB | Stock Option (right to buy) | Common Stock (6,900) | $72.87 | Nov. 1, 2017 | 6,900 | Acquired |
| Feb. 12, 2007 | BIIB | Stock Option (right-to-buy) [F2] | Common Stock (38,900) | $49.31 | Feb. 11, 2017 | 38,900 | Acquired |
| Feb. 6, 2007 | BIIB | Restricted Stock Unit | Common Stock (5,467) | — | Feb. 6, 2007 | 5,467 | Disposed |
| Feb. 6, 2006 | BIIB | Restricted Stock Units | Common Stock (16,400) | — | — | 16,400 | Acquired |
| Feb. 6, 2006 | BIIB | Stock Option (right-to-buy) [F1] | Common Stock (40,900) | $44.24 | Feb. 5, 2016 | 40,900 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 21, 2005 | BIIB | Common Stock | — | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (28,750) | 28,750 | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (5,750) | 5,750 | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (10,062) | 10,062 | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (20,124) | 20,124 | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (27,475) | 27,475 | Direct |
| Oct. 21, 2005 | BIIB | Stock Option (right-to-buy) [F2]→ Common Stock (45,000) | 45,000 | Direct |