Didier Hirsch
CIK 1226464 · Sr. VP and CFO · last filed 2026-06-22
Didier Hirsch is a Sr. VP and CFO who has filed 104 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing shows the insider was granted $107.7K of SOPH on Jun 22, 2026. Across all open-market trades the lifetime net is −$28.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $40.4M across reported positions. 56 SEC filings were submitted jointly with AGILENT TECHNOLOGIES INC.
"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.
A 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.
Filer Profile
ITASCA, IL 60143
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SOPH | Director | 240,220 | $7.49 | $1.80M | $0 | 1 | 2026-06-22 |
| KN | Director | 140,299 | $32.87 | $4.61M | $261.4K | 18 | 2025-05-01 |
| AZTA | Director | 3,465 | $40.79 | $141.3K | $39.5K | 2 | 2024-11-19 |
| LOGI | Director | 6,094 | $97.91 | $596.7K | -$3.07M | 21 | 2021-09-10 |
| A | Sr. VP and CFO | 184,531 | $179.96 | $33.21M | -$26.01M | 46 | 2017-12-08 |
| INTERNATIONAL RECTIFIER CORP /DE/ (IRF) Delisted | Director | 0 | — | — | $133.7K | 13 | 2015-01-13 |
Recent Filings
104 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-22 | SOPH | Grant (A) | +19,724 | $107.7K | EDGAR |
| 2026-05-05 | KN | Notice (144) | −10,740 | -$353.9K | EDGAR |
| 2026-05-01 | KN | Notice (144) | −10,373 | -$326.2K | EDGAR |
| 2026-04-28 | KN | Notice (144) | −9,316 | -$286.0K | EDGAR |
| 2025-05-01 | KN | Grant (A) | +11,890 | $190.0K | EDGAR |
| 2024-11-19 | AZTA | Buy (P) | +1,000 | $39.5K | EDGAR |
| 2024-05-02 | KN | Grant (A) | +10,740 | $170.0K | EDGAR |
| 2024-02-13 | AZTA | Grant (A) | +2,465 | $162.5K | EDGAR |
| 2023-05-04 | KN | Grant (A) | +10,373 | $170.0K | EDGAR |
| 2022-04-27 | KN | Grant (A) | +9,316 | $170.0K | 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.