ALEXANDER J DENNER
CIK 1361754 · last filed 2026-03-17
"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.
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Disclosed Exposure
$166.15M
Companies
9
Total Filings
101
Lifetime Open-Market Net
$292.27M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IRWD | Director | 9,450,744 | $3.65 | $34.50M | -$3.12M | 22 | 2026-03-17 |
| BIIB | Director | 658,099 | $200.05 | $131.65M | $165.91M | 24 | 2022-06-17 |
| MEDICINES CO /DE (MDCO) Delisted | Director | 0 | — | — | $63.34M | 16 | 2020-01-06 |
| Bioverativ Inc. (BIVV) Delisted | Director | 0 | — | — | $56.34M | 8 | 2018-03-08 |
| ARIAD PHARMACEUTICALS INC (ARIA) Delisted | Director | 0 | — | — | $4.96M | 6 | 2017-02-16 |
| VIVUS INC (VVUS) Delisted | Director | 2,424,167 | — | — | $4.87M | 4 | 2015-11-03 |
| Viskase Holdings, Inc. (ENZN) Delisted | Director | 60,620 | — | — | $0 | 8 | 2013-01-04 |
| AMYLIN PHARMACEUTICALS INC (AMLN) Delisted | Director | 10,161 | — | — | -$21.2K | 9 | 2012-05-17 |
| Savara Inc (ANX) Delisted | Director | — | — | — | $0 | 3 | 2008-07-08 |
Recent Filings · Page 4 of 11
101 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-05-22 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +431,000 | $14.61M | EDGAR |
| 2019-05-02 | BIIB | Buy (P) | +118,342 | $27.21M | EDGAR |
| 2019-03-08 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +248,100 | $6.18M | EDGAR |
| 2019-03-05 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +606,900 | $15.53M | EDGAR |
| 2019-02-01 | BIIB | Buy (P) | +62,800 | $20.57M | EDGAR |
| 2018-12-21 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +10,000 | $178.9K | EDGAR |
| 2018-12-18 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +30,000 | $540.0K | EDGAR |
| 2018-12-17 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +819,000 | $16.59M | EDGAR |
| 2018-06-14 | BIIB | Grant (A) | +880 | $0 | EDGAR |
| 2018-06-04 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +3,766 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.