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Insider · CIK 0001458693

Drapkin Matthew A

CIK 0001458693 Name as filed on the most recent filing

Filed as Drapkin Matthew A (152)

589 transaction lines · from 152 filings · filed 2009-04-02 to 2024-09-17 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-26 05:24 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

357 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-26 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2017-05-23 P, Open-market purchase PRGX Global, Inc.PRGX 24,174, acquired Open Form 4 filing 0000899243-17-014374
2017-05-22 P, Open-market purchase PRGX Global, Inc.PRGX 9,175, acquired Open Form 4 filing 0000899243-17-014069
2017-05-19 P, Open-market purchase PRGX Global, Inc.PRGX 34,217, acquired Open Form 4 filing 0000899243-17-014069
2017-05-18 P, Open-market purchase PRGX Global, Inc.PRGX 134,353, acquired Open Form 4 filing 0000899243-17-014069
2017-05-17 P, Open-market purchase PRGX Global, Inc.PRGX 105,350, acquired Open Form 4 filing 0000899243-17-013550
2017-05-16 P, Open-market purchase PRGX Global, Inc.PRGX 81,954, acquired Open Form 4 filing 0000899243-17-013550
2017-05-15 P, Open-market purchase PRGX Global, Inc.PRGX 299,618, acquired Open Form 4 filing 0000899243-17-013550
2017-05-12 P, Open-market purchase Great Elm Capital Group, Inc.GEC 3,808,253, acquired Open Form 4 filing 0000899243-17-013257
2017-03-16 P, Open-market purchase PRGX Global, Inc.PRGX 5,670, acquired Open Form 4 filing 0000899243-17-007831
2017-03-15 P, Open-market purchase PRGX Global, Inc.PRGX 8,726, acquired Open Form 4 filing 0000899243-17-007831
2017-03-13 P, Open-market purchase PRGX Global, Inc.PRGX 150,592, acquired Open Form 4 filing 0000899243-17-007320
2017-03-10 P, Open-market purchase PRGX Global, Inc.PRGX 46,620, acquired Open Form 4 filing 0000899243-17-007320
2017-03-09 P, Open-market purchase PRGX Global, Inc.PRGX 38,575, acquired Open Form 4 filing 0000899243-17-007320
2017-03-07 P, Open-market purchase PRGX Global, Inc.PRGX 34,560, acquired Open Form 4 filing 0000899243-17-006721
2017-03-03 P, Open-market purchase PRGX Global, Inc.PRGX 36,250, acquired Open Form 4 filing 0000899243-17-006721
2016-11-14 P, Open-market purchase PRGX Global, Inc.PRGX 1,000,000, acquired Open Form 4 filing 0000899243-16-033362
2016-08-09 P, Open-market purchase Intevac IncIVAC 560,380, acquired Open Form 4 filing 0000899243-16-026620
2016-08-08 P, Open-market purchase Intevac IncIVAC 384,468, acquired Open Form 4 filing 0000899243-16-026620
2016-08-05 P, Open-market purchase Intevac IncIVAC 120,468, acquired Open Form 4 filing 0000899243-16-026620
2016-06-10 P, Open-market purchase Intevac IncIVAC 52,940, acquired Open Form 4 filing 0000899243-16-022365
2016-06-08 P, Open-market purchase Intevac IncIVAC 154,056, acquired Open Form 4 filing 0000899243-16-022365
2015-11-12 S, Open-market sale Intevac IncIVAC 2 lines 7,386,192, disposed Open Form 4 filing 0000899243-15-008124
2015-10-19 S, Open-market sale Special Diversified Opportunities Inc.SDOI 2 lines 7,519,200, disposed Open Form 4 filing 0000899243-15-006969
2015-08-12 S, Open-market sale Emcore CorpEMKR 3 lines 702,720, disposed Open Form 4 filing 0000899243-15-003016
2015-08-11 S, Open-market sale Emcore CorpEMKR 3 lines 157,595, disposed Open Form 4 filing 0000899243-15-003016
2015-08-10 S, Open-market sale Emcore CorpEMKR 3 lines 1,964,212, disposed Open Form 4 filing 0000899243-15-003016
2015-06-22 S, Open-market sale Emcore CorpEMKR 3 lines 3,278,845, disposed Open Form 4 filing 0001209191-15-055786
2014-10-13 P, Open-market purchase Intevac IncIVAC 11,464, acquired Open Form 4 filing 0001209191-14-063335
2014-10-10 P, Open-market purchase Intevac IncIVAC 129,488, acquired Open Form 4 filing 0001209191-14-063335
2014-10-09 P, Open-market purchase Intevac IncIVAC 121,278, acquired Open Form 4 filing 0001209191-14-062734
2014-10-08 P, Open-market purchase Intevac IncIVAC 106,453, acquired Open Form 4 filing 0001209191-14-062734
2014-10-07 P, Open-market purchase Intevac IncIVAC 67,874, acquired Open Form 4 filing 0001209191-14-062734
2014-10-06 P, Open-market purchase Intevac IncIVAC 147,552, acquired Open Form 4 filing 0001209191-14-062222
2014-10-03 P, Open-market purchase Intevac IncIVAC 101,937, acquired Open Form 4 filing 0001209191-14-062222
2014-10-02 P, Open-market purchase Intevac IncIVAC 140,559, acquired Open Form 4 filing 0001209191-14-062222
2014-09-05 P, Open-market purchase Intevac IncIVAC 116,162, acquired Open Form 4 filing 0001209191-14-057076
2014-08-28 P, Open-market purchase Intevac IncIVAC 173,795, acquired Open Form 4 filing 0001209191-14-055270
2014-08-22 P, Open-market purchase Intevac IncIVAC 29,827, acquired Open Form 4 filing 0001209191-14-054112
2014-08-21 P, Open-market purchase Intevac IncIVAC 362,002, acquired Open Form 4 filing 0001209191-14-054112
2014-08-20 P, Open-market purchase Intevac IncIVAC 257,377, acquired Open Form 4 filing 0001209191-14-054112

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Search the catalog
Codes on this page
P, Open-market purchase
Open-market purchase
S, Open-market sale
Open-market sale
Relationships on this page
D, Director
Director

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 307
  • Open-market sale 50
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Drapkin Matthew A, insider transactions. Retrieved 2026-08-27 from https://ebomi.com/insider/0001458693

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.