David A Martin
CIK 1348389 · SVP, CTO · last filed 2026-03-16
"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.
Loading insider history…
Disclosed Exposure
$2.37M
Companies
3
Total Filings
54
Lifetime Open-Market Net
-$1.84M
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 |
|---|---|---|---|---|---|---|---|
| TWI | SVP, CTO | 307,188 | $7.72 | $2.37M | $144.3K | 16 | 2026-03-16 |
| Aegion Corp (AEGN) Delisted | EVP and CFO | 101,430 | $29.99 | $3.04M | -$1.23M | 26 | 2017-11-03 |
| Aegion Corp (INSU) Delisted | SVP & Chief Financial Officer | 65,858 | — | — | -$756.0K | 12 | 2011-03-24 |
Recent Filings · Page 2 of 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-03-21 | TWI | Grant (A) | +55,000 | $0 | EDGAR |
| 2021-06-15 | TWI | Tax (F) | −2,930 | -$27.0K | EDGAR |
| 2021-03-26 | TWI | Mixed | +35,117 | -$43.0K | EDGAR |
| 2020-03-27 | TWI | Grant (A) | +50,000 | $0 | EDGAR |
| 2018-08-08 | TWI | Buy (P) | +20,000 | $144.3K | EDGAR |
| 2018-06-25 | TWI | Grant (A) | +30,000 | $0 | EDGAR |
| 2017-11-03 | Aegion Corp (AEGN) Delisted | Sell (S) | −10,000 | -$240.0K | EDGAR |
| 2017-03-27 | Aegion Corp (AEGN) Delisted | Tax (F) | −5,660 | -$124.4K | EDGAR |
| 2017-02-24 | Aegion Corp (AEGN) Delisted | Mixed | +18,025 | -$46.9K | EDGAR |
| 2016-12-09 | Aegion Corp (AEGN) Delisted | Sell (S) | −10,000 | -$253.4K | 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.