Martin D Madaus
CIK 1310268 · CEO and President · last filed 2026-05-18
Martin D Madaus is a CEO and President who has filed 99 SEC Form 4 insider transactions across 8 companies since 2007. The most recent filing, for RGEN, was dated May 18, 2026. Across all open-market trades the lifetime net is −$3.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $7.7M across reported positions.
"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.
$7.74M
8
99
-$3.18M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RGEN | Director | 8,381 | $145.34 | $1.22M | $641.9K | 8 | 2026-05-18 |
| HOLOGIC INC (HOLX) Delisted | Director | 10,841 | $76.01 | $824.0K | $300.8K | 4 | 2026-03-02 |
| AZTA | Director | 7,405 | $28.93 | $214.2K | $201.4K | 5 | 2026-02-06 |
| QTRX | Director | 291,541 | $3.49 | $1.02M | -$3.11M | 44 | 2025-01-06 |
| LAB | Director | 104,111 | $0.79 | $82.7K | $0 | 5 | 2023-10-20 |
| MTD | Director | 3,749 | $1388.38 | $5.21M | -$1.22M | 9 | 2014-11-20 |
| Covidien plc (COV) Delisted | Director | 6,235 | — | — | $0 | 11 | 2014-02-24 |
| MILLIPORE CORP /MA (MIL) Delisted | CEO and President | 0 | — | — | $0 | 12 | 2010-07-16 |
Recent Filings
99 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-18 | RGEN | Grant (A) | +995 | $0 | EDGAR |
| 2026-04-09 | — | Disp (D) | −10,841 | $0 | |
| 2026-03-02 | HOLOGIC INC (HOLX) Delisted | Grant (A) | +3,190 | $0 | EDGAR |
| 2026-02-06 | AZTA | Grant (A) | — | $0 | EDGAR |
| 2025-11-25 | AZTA | — | — | $0 | EDGAR |
| 2025-08-12 | RGEN | Buy (P) | +1,800 | $201.8K | EDGAR |
| 2025-05-19 | RGEN | Grant (A) | +973 | $0 | EDGAR |
| 2025-05-09 | HOLOGIC INC (HOLX) Delisted | Buy (P) | +5,445 | $300.8K | EDGAR |
| 2025-02-28 | HOLOGIC INC (HOLX) Delisted | Grant (A) | +1,864 | $0 | EDGAR |
| 2025-02-11 | AZTA | Grant (A) | — | $0 | 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.