BIIB Biogen Inc. - Common Stock
view in graph · ← all stocks13trades
8buys
5sells
6traders
$195.5Kest. volume
oversight 2 of this stock's 6 government traders sit on committees overseeing its health care sector: Kevin Hern Alan Armstrong
Who traded it
| Trader | Trades | Buys | Sells | Est. volume | Last traded |
|---|---|---|---|---|---|
| Maria Elvira Salazar R · FL | 5 | 3 | 2 | $131.5K | Sep 24, 2026 |
| Robert P. Bresnahan, Jr. R · PA | 3 | 2 | 1 | $24K | May 15, 2025 |
| Gilbert Ray Cisneros, Jr. D · CA | 2 | 2 | 0 | $16K | Jun 5, 2026 |
| Kevin Hern R · OK | 1 | 0 | 1 | $8K | Aug 18, 2026 |
| Alan Armstrong R · OK | 1 | 1 | 0 | $8K | Mar 27, 2026 |
| Sethuraman Panchanathan EXEC | 1 | 0 | 1 | $8K | Jan 4, 2021 |
All BIIB trades
13 rows| Member | Asset | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|---|
| Maria Elvira Salazar R · FL | BIIB Biogen Inc. - Common Stock | Sell (partial) | $1K – $15K | Self | Sep 24, 2026 | filing ↗ |
| Kevin Hern R · OK | BIIB Biogen Inc. - Common Stock oversight | Sell | $1K – $15K | Self | Aug 18, 2026 | filing ↗ |
| Gilbert Ray Cisneros, Jr. D · CA | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | Jun 5, 2026 | filing ↗ |
| Maria Elvira Salazar R · FL | BIIB Biogen Inc. - Common Stock | Sell | $15K – $50K | Self | Jun 2, 2026 | filing ↗ |
| Maria Elvira Salazar R · FL | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | May 12, 2026 | filing ↗ |
| Maria Elvira Salazar R · FL | BIIB Biogen Inc. - Common Stock | Buy | $50K – $100K | Self | May 11, 2026 | filing ↗ |
| Maria Elvira Salazar R · FL | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | May 11, 2026 | filing ↗ |
| Alan Armstrong R · OK | BIIB Biogen Inc. - Common Stock oversight | Buy | $1K – $15K | Self | Mar 27, 2026 | 71d late filing ↗ |
| Gilbert Ray Cisneros, Jr. D · CA | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | Jan 30, 2026 | filing ↗ |
| Robert P. Bresnahan, Jr. R · PA | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | May 15, 2025 | filing ↗ |
| Robert P. Bresnahan, Jr. R · PA | BIIB Biogen Inc. - Common Stock | Sell | $1K – $15K | Self | Apr 8, 2025 | filing ↗ |
| Robert P. Bresnahan, Jr. R · PA | BIIB Biogen Inc. - Common Stock | Buy | $1K – $15K | Self | Feb 25, 2025 | filing ↗ |
| Sethuraman Panchanathan EXEC | BIIB Biogen Inc. | Sell | $1K – $15K | Self | Jan 4, 2021 | filing ↗ |
Trades a filer disclosed under the BIIB symbol, across every published filing; a buy and a later sale of the same shares are separate rows. Est. volume sums the midpoints of disclosed amount ranges.