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 3 of 11
101 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-10 | IRWD | Buy (P) | +450,000 | $4.67M | EDGAR |
| 2021-03-02 | IRWD | Buy (P) | +1,350,000 | $12.74M | EDGAR |
| 2020-12-17 | IRWD | Grant (A) | +661 | $0 | EDGAR |
| 2020-11-09 | IRWD | Grant (A) | +37,183 | $0 | EDGAR |
| 2020-06-05 | BIIB | Grant (A) | +890 | $0 | EDGAR |
| 2020-01-06 | MEDICINES CO /DE (MDCO) Delisted | Disp (D) | −4,287,813 | $0 | EDGAR |
| 2019-06-28 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +50,000 | $1.65M | EDGAR |
| 2019-06-20 | BIIB | Grant (A) | +1,155 | $0 | EDGAR |
| 2019-06-03 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +3,663 | $0 | EDGAR |
| 2019-05-31 | MEDICINES CO /DE (MDCO) Delisted | Buy (P) | +85,000 | $2.96M | 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.