Biogen (BIIB): Politician trade (House), $15K–$50K

$15,001–$50,000
Reported range · official band, not an exact amount: 35 days
Disclosure lag

Traded: Jun 2, 2026
Disclosed: Jul 7, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

Mar 27, 2026CongressDisclosed purchase of BIIB — reported range $1,001 - $15,000
Apr 6, 2026Company filing · Form 8-K · ResultsReported its results
Apr 29, 2026Company filing · Form 8-K · ResultsReported its results
Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
May 6, 20265% stakeFMR LLC reported a passive stake (13G) of 8.7%
May 11, 2026Congress · 1 personMembers of Congress: 2 purchases
May 12, 2026CongressDisclosed purchase of BIIB — reported range $1,001 - $15,000
May 14, 2026Company filing · Form 8-K · Material agreement, Acquisition or saleCompleted buying or selling a business or assets, and signed an important agreement (and 2 more items)“Pursuant to the Merger Agreement, on April 14, 2026, Purchaser commenced a tender offer (the “Offer”) to acquire any and all of the issued and outstanding Shares, in exchange for (i) $41.00 per Share, net to the seller in cash, without interest and subject to reduction for any applicable tax withholding (the “Cash Amount”), plus (ii) one contractual, non-transferable contingent value right per Share (each, a “CVR”)…”
Jun 2, 2026 · this disclosureCongressDisclosed sale of BIIB — reported range $15,001 - $50,000

What came next

How to read House Clerk periodic transaction report

The STOCK Act is a 2012 US law that requires members of Congress, and some senior staff, to publicly report their stock trades, and those of their spouse and dependent children, within 45 days.

Full guide: What is the STOCK Act?

What else is on file for Biogen

For Biogen, OQRO holds 2 insider filings (SEC Form 4 or Form 144), 3 Congress trade reports and 11 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its BIIB page.

Other recent filings by Rep. Maria Elvira Salazar (FL27)

The full history of Rep. Maria Elvira Salazar (FL27) is on the profile page.

Other disclosures at Biogen

Everything OQRO holds on this company is on its BIIB page.

Biogen (BIIB)Rep. Maria Elvira Salazar (FL27) disclosed a sale $15K–$50K