Stefan A Dyckerhoff
CIK 1484394 · EVP Platform Systems Division · last filed 2026-06-05
Stefan A Dyckerhoff is an EVP Platform Systems Division who has filed 37 SEC Form 4 insider transactions across 10 companies since 2010. The most recent filing, for ALAB, was dated Jun 5, 2026. Across all open-market trades the lifetime net is −$59.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $139.8M 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.
$139.78M
10
37
-$59.41M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ALAB | Director | 380,703 | $367.15 | $139.78M | -$53.47M | 13 | 2026-06-05 |
| SNOW | 10%+ Owner | — | $232.78 | — | $0 | 2 | 2020-09-22 |
| Forty Seven, Inc. (FTSV) Delisted | 41,305 | — | — | $2.19M | 1 | 2018-07-03 | |
| Everpure, Inc. (PSTG) Delisted | 10%+ Owner | 25,520 | $67.80 | $1.73M | -$860.8K | 5 | 2018-01-12 |
| YEXT | 10%+ Owner | 0 | $4.06 | $0 | $0 | 2 | 2017-12-05 |
| Venus Concept Inc. (HAIR) Delisted | 10%+ Owner | 17,740 | — | — | $0 | 2 | 2017-10-18 |
| Mattersight Corp (MATR) Delisted | 10%+ Owner | 852,651 | — | — | -$5.65M | 4 | 2017-06-02 |
| Molecular Templates, Inc. (THLD) Delisted | 10%+ Owner | 4,942,055 | — | — | -$2.35M | 2 | 2014-10-03 |
| DEXTERA SURGICAL INC (CRDC) Delisted | 10%+ Owner | 9,726 | — | — | $1.05M | 1 | 2013-03-22 |
| JUNIPER NETWORKS INC (JNPR) Delisted | EVP Platform Systems Division | 0 | $39.95 | $0 | -$326.8K | 5 | 2012-02-21 |
Recent Filings
37 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-05 | ALAB | Mixed | −11,662 | -$4.55M | EDGAR |
| 2026-05-11 | ALAB | Sell (S) | −12,499 | -$2.50M | EDGAR |
| 2026-04-21 | ALAB | Sell (S) | −24,998 | -$4.38M | EDGAR |
| 2025-08-15 | ALAB | Gift (G) | −11,000 | $0 | EDGAR |
| 2025-08-11 | ALAB | Sell (S) | −52,000 | -$9.07M | EDGAR |
| 2025-06-10 | ALAB | Grant (A) | +2,351 | $0 | EDGAR |
| 2024-11-26 | ALAB | Sell (S) | −45,629 | -$4.85M | EDGAR |
| 2024-11-20 | ALAB | Sell (S) | −203,445 | -$18.44M | EDGAR |
| 2024-11-13 | ALAB | Sell (S) | −50,000 | -$4.60M | EDGAR |
| 2024-11-08 | ALAB | Sell (S) | −56,567 | -$5.08M | EDGAR |