Insider · CIK 0001484394
Stefan A Dyckerhoff
Files at: ALAB, FTSV, P, YEXT, HAIR, MATR. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 SForm 4 → | Sep 3, 7:07 pm EDT | Astera Labs, Inc.ALAB | 12,499 | $274.96 | $3,436,753 | 3,309 | −79.1% | 10b5-1 |
| Aug 6, 2026 SForm 4 → | Aug 10, 4:17 pm EDT | Astera Labs, Inc.ALAB | 12,499 | $311.83 | $3,897,587 | 3,970 | −75.9% | 10b5-1 |
| Jul 1, 2026 SForm 4 → | Jul 2, 7:29 pm EDT | Astera Labs, Inc.ALAB | 12,499 | $450.00 | $5,624,550 | 4,631 | −73.0% | 10b5-1 |
| Jun 4, 2026 AForm 4 → | Jun 5, 5:09 pm EDT | Astera Labs, Inc.ALAB | 837 | — | — | 60,971 | — | 10b5-1 |
| Jun 3, 2026 SForm 4 → | Jun 5, 5:09 pm EDT | Astera Labs, Inc.ALAB | 12,499 | $364.35 | $4,553,996 | 5,292 | −70.3% | 10b5-1 |
| Jul 2, 2018 PForm 4 → | Jul 3, 7:42 pm EDT | Forty Seven, Inc.FTSV | 136,650 | $16.00 | $2,186,400 | 41,305 | — | plan? |
| Jul 2, 2018 CForm 4 → | Jul 3, 7:42 pm EDT | Forty Seven, Inc.FTSV | 2,811,027 | — | — | 39,390 | — | plan? |
| Jan 11, 2018 SForm 4 → | Jan 12, 6:33 pm EST | Pure Storage, Inc.PSTG | 25,520 | $16.76 | $427,664 | 0 | −100% | plan? |
| Jan 11, 2018 CForm 4 → | Jan 12, 6:33 pm EST | Pure Storage, Inc.PSTG | 25,520 | — | — | 25,520 | — | plan? |
| Dec 7, 2017 SForm 4 → | Dec 11, 5:32 pm EST | Pure Storage, Inc.PSTG | 25,407 | $17.05 | $433,174 | 0 | −100% | plan? |
| Dec 7, 2017 CForm 4 → | Dec 11, 5:32 pm EST | Pure Storage, Inc.PSTG | 25,407 | — | — | 25,407 | — | plan? |
| Dec 1, 2017 JForm 4 → | Dec 5, 4:58 pm EST | Yext, Inc.YEXT | 8,951,212 | — | — | 0 | — | plan? |
| Oct 16, 2017 CForm 4 → | Oct 18, 2:59 pm EDT | Restoration Robotics IncHAIR | 2,098,276 | $7.00 | $744,205 | 18,686 | — | plan? |
| Jun 1, 2017 PForm 4 → | Jun 2, 6:18 pm EDT | Mattersight CorpMATR | 204,445 | $3.65 | $746,081 | 22,053 | — | plan? |
| May 31, 2017 JForm 4 → | Jun 2, 6:18 pm EDT | Mattersight CorpMATR | 271,391 | — | — | 852,651 | — | plan? |
| Apr 19, 2017 CForm 4 → | Apr 21, 5:41 pm EDT | Yext, Inc.YEXT | 9,940,395 | — | — | 87,383 | — | plan? |
| Nov 19, 2015 JForm 4 → | Nov 23, 5:36 pm EST | Mattersight CorpMATR | 337,180 | — | — | 21,151 | — | plan? |
| Nov 9, 2015 SForm 4 → | Nov 12, 6:48 pm EST | Mattersight CorpMATR | 1,000,000 | $7.29 | $7,290,000 | 1,443,889 | −40.9% | plan? late |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 2, 2018 CForm 4 → | Jul 3, 7:42 pm EDT | Forty Seven, Inc.FTSV | 2,811,027 | — | — | 0 | — | |
| Jan 11, 2018 CForm 4 → | Jan 12, 6:33 pm EST | Pure Storage, Inc.PSTG | 25,520 | — | — | 242,808 | — | |
| Dec 7, 2017 CForm 4 → | Dec 11, 5:32 pm EST | Pure Storage, Inc.PSTG | 25,407 | — | — | 268,328 | — | |
| Nov 30, 2017 JForm 4 → | Dec 4, 4:49 pm EST | Pure Storage, Inc.PSTG | 8,832,100 | — | — | 17,102,128 | — | |
| Oct 16, 2017 CForm 4 → | Oct 18, 2:59 pm EDT | Restoration Robotics IncHAIR | 2,098,276 | — | — | 0 | — | |
| Oct 11, 2017 JForm 4 → | Oct 13, 6:34 pm EDT | Restoration Robotics IncHAIR | — | — | — | — | — | |
| May 31, 2017 JPForm 4 → | Jun 2, 6:24 pm EDT | Pure Storage, Inc.PSTG | 8,196,302 | $11.08 | $45,396,038 | 25,602,128 | — | |
| Apr 19, 2017 CForm 4 → | Apr 21, 5:41 pm EDT | Yext, Inc.YEXT | 9,940,395 | — | — | 0 | — | |
| Nov 19, 2015 JForm 4 → | Nov 23, 5:36 pm EST | Mattersight CorpMATR | 101,478 | — | — | 5,217 | — | |
| Oct 13, 2015 CForm 4 → | Oct 13, 7:19 pm EDT | Pure Storage, Inc.PSTG | 52,115,990 | — | — | 0 | — |