David A Henry
CIK 1195842 · Chief Financial Officer · last filed 2026-10-15
"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.
AMSC 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.
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MYO | Chief Financial Officer | 549,862 | $1.20 | $659.8K | $88.3K | 32 | 2026-10-15 |
| NNDM | EVP, CFO & Treasurer | 6,209 | $1.40 | $8.7K | -$213.8K | 5 | 2016-08-22 |
| AMSC | EVP, CFO & Treasurer | 99,132 | $25.40 | $2.52M | -$1.56M | 20 | 2015-08-04 |
| AMIS HOLDINGS INC (AMIS) Delisted | Vice President | 13,640 | — | — | $0 | 2 | 2007-03-02 |
Recent Filings · Page 2 of 7
68 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-14 | MYO | Grant (A) | +8,727 | $0 | EDGAR |
| 2025-07-02 | MYO | Tax (F) | −23,587 | -$51.7K | EDGAR |
| 2025-06-30 | MYO | Notice (144) | −23,587 | -$51.7K | EDGAR |
| 2025-06-13 | MYO | Grant (A) | +76,398 | $0 | EDGAR |
| 2025-06-06 | MYO | Tax (F) | −8,373 | -$24.9K | EDGAR |
| 2025-06-06 | MYO | Notice (144) | −8,373 | -$24.9K | EDGAR |
| 2025-03-13 | MYO | Mixed | +2,087 | -$10.5K | EDGAR |
| 2025-03-13 | MYO | Notice (144) | −2,019 | -$10.5K | EDGAR |
| 2025-01-24 | MYO | Exer (M) | +3,012 | $0 | EDGAR |
| 2024-07-02 | MYO | Tax (F) | −25,436 | -$76.8K | 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.