Susan H Alexander
CIK 1263839 · EVP Chief Legal Officer · last filed 2026-02-17
Susan H Alexander is an EVP Chief Legal Officer who has filed 87 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for BIIB, was dated Feb 17, 2026. Across all open-market trades the lifetime net is −$30.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $14.8M across reported positions. 84 SEC filings were submitted jointly with BIOGEN INC.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
BIIB price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
14 CAMBRIDGE CENTER
CAMBRIDGE, MA 02142
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BIIB | EVP Chief Legal Officer | 63,403 | $233.48 | $14.80M | -$30.25M | 80 | 2026-02-17 |
| INVACARE HOLDINGS Corp (IVC) Delisted | Director | 104,499 | $0.66 | $68.9K | $0 | 7 | 2022-04-05 |
Recent Filings
87 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-17 | BIIB | Grant (A) | — | $0 | EDGAR |
| 2026-02-10 | BIIB | Mixed | +5,542 | -$704.9K | EDGAR |
| 2025-02-12 | BIIB | Mixed | +1,768 | -$115.0K | EDGAR |
| 2025-02-10 | BIIB | Mixed | +2,896 | -$174.4K | EDGAR |
| 2024-11-07 | BIIB | Gift (G) | — | $0 | EDGAR |
| 2024-02-21 | BIIB | Mixed | +2,600 | -$533.9K | EDGAR |
| 2024-02-13 | BIIB | Mixed | +1,637 | -$226.0K | EDGAR |
| 2024-02-09 | BIIB | Mixed | +1,535 | -$157.4K | EDGAR |
| 2024-01-31 | BIIB | Grant (A) | — | $0 | EDGAR |
| 2023-02-22 | BIIB | Mixed | +991 | -$258.6K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.