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Insider · CIK 0001429074

Mast Capital Management, LLC

CIK 0001429074 Name as filed on the most recent filing

Filed as Mast Capital Management, LLC (85)· Mast Capital Management LLC (9)

255 transaction lines · from 94 filings · filed 2008-03-06 to 2019-06-07 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 2026-08-22 05:23 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.

0 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 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2019-02-25 S, Open-market sale Great Elm Capital Corp.GECC 275,568, disposed Open Form 4 filing 0000899243-19-004900
2019-02-22 S, Open-market sale Great Elm Capital Corp.GECC 132,654, disposed Open Form 4 filing 0000899243-19-004900
2019-02-21 S, Open-market sale Great Elm Capital Corp.GECC 53,690, disposed Open Form 4 filing 0000899243-19-004413
2019-02-20 S, Open-market sale Great Elm Capital Corp.GECC 96,512, disposed Open Form 4 filing 0000899243-19-004413
2019-02-19 S, Open-market sale Great Elm Capital Corp.GECC 173,888, disposed Open Form 4 filing 0000899243-19-004413
2019-02-15 S, Open-market sale Great Elm Capital Corp.GECC 99,665, disposed Open Form 4 filing 0000899243-19-003863
2019-02-14 S, Open-market sale Great Elm Capital Corp.GECC 135,871, disposed Open Form 4 filing 0000899243-19-003863
2019-02-13 S, Open-market sale Great Elm Capital Corp.GECC 99,178, disposed Open Form 4 filing 0000899243-19-003863
2019-02-12 S, Open-market sale Great Elm Capital Corp.GECC 68,566, disposed Open Form 4 filing 0000899243-19-003349
2019-02-11 S, Open-market sale Great Elm Capital Corp.GECC 47,985, disposed Open Form 4 filing 0000899243-19-003349
2019-02-08 S, Open-market sale Great Elm Capital Corp.GECC 48,885, disposed Open Form 4 filing 0000899243-19-003349
2019-02-07 S, Open-market sale Great Elm Capital Corp.GECC 73,235, disposed Open Form 4 filing 0000899243-19-002904
2019-02-06 S, Open-market sale Great Elm Capital Corp.GECC 119,620, disposed Open Form 4 filing 0000899243-19-002904
2019-02-05 S, Open-market sale Great Elm Capital Corp.GECC 130,022, disposed Open Form 4 filing 0000899243-19-002904
2019-02-04 S, Open-market sale Great Elm Capital Corp.GECC 200,320, disposed Open Form 4 filing 0000899243-19-002480
2019-02-01 S, Open-market sale Great Elm Capital Corp.GECC 41,602, disposed Open Form 4 filing 0000899243-19-002480
2019-01-31 S, Open-market sale Great Elm Capital Corp.GECC 72,048, disposed Open Form 4 filing 0000899243-19-002480
2019-01-30 S, Open-market sale Great Elm Capital Corp.GECC 78,048, disposed Open Form 4 filing 0000899243-19-002209
2019-01-29 S, Open-market sale Great Elm Capital Corp.GECC 56,053, disposed Open Form 4 filing 0000899243-19-002209
2019-01-28 S, Open-market sale Great Elm Capital Corp.GECC 120,622, disposed Open Form 4 filing 0000899243-19-002209
2019-01-25 S, Open-market sale Great Elm Capital Corp.GECC 147,099, disposed Open Form 4 filing 0000899243-19-001964
2019-01-24 S, Open-market sale Great Elm Capital Corp.GECC 37,104, disposed Open Form 4 filing 0000899243-19-001964
2019-01-23 S, Open-market sale Great Elm Capital Corp.GECC 75,797, disposed Open Form 4 filing 0000899243-19-001964
2019-01-22 S, Open-market sale Great Elm Capital Corp.GECC 51,908, disposed Open Form 4 filing 0000899243-19-001645
2019-01-18 S, Open-market sale Great Elm Capital Corp.GECC 39,360, disposed Open Form 4 filing 0000899243-19-001645
2019-01-17 S, Open-market sale Great Elm Capital Corp.GECC 23,453, disposed Open Form 4 filing 0000899243-19-001645
2019-01-16 S, Open-market sale Great Elm Capital Corp.GECC 29,853, disposed Open Form 4 filing 0000899243-19-001304
2019-01-15 S, Open-market sale Great Elm Capital Corp.GECC 10,534, disposed Open Form 4 filing 0000899243-19-001304
2019-01-14 S, Open-market sale Great Elm Capital Corp.GECC 1,590, disposed Open Form 4 filing 0000899243-19-001304
2019-01-11 S, Open-market sale Great Elm Capital Corp.GECC 16,698, disposed Open Form 4 filing 0000899243-19-001050
2019-01-10 S, Open-market sale Great Elm Capital Corp.GECC 29,437, disposed Open Form 4 filing 0000899243-19-001050
2019-01-09 S, Open-market sale Great Elm Capital Corp.GECC 10,336, disposed Open Form 4 filing 0000899243-19-001050
2019-01-08 S, Open-market sale Great Elm Capital Corp.GECC 11,529, disposed Open Form 4 filing 0000899243-19-000802
2019-01-07 S, Open-market sale Great Elm Capital Corp.GECC 13,445, disposed Open Form 4 filing 0000899243-19-000802
2019-01-04 S, Open-market sale Great Elm Capital Corp.GECC 321,974, disposed Open Form 4 filing 0000899243-19-000802
2019-01-03 S, Open-market sale Great Elm Capital Corp.GECC 3,791, disposed Open Form 4 filing 0000899243-19-000532
2019-01-02 S, Open-market sale Great Elm Capital Corp.GECC 6,000, disposed Open Form 4 filing 0000899243-19-000532
2018-12-31 S, Open-market sale Great Elm Capital Corp.GECC 2,000, disposed Open Form 4 filing 0000899243-19-000098
2018-12-28 S, Open-market sale Great Elm Capital Corp.GECC 11,009, disposed Open Form 4 filing 0000899243-19-000098
2018-12-13 S, Open-market sale Great Elm Capital Corp.GECC 7,034, disposed Open Form 4 filing 0000899243-18-031196
2018-12-11 S, Open-market sale Great Elm Capital Corp.GECC 2 lines 18,827, disposed Open Form 4 filing 0000899243-18-030744
2018-12-10 S, Open-market sale Great Elm Capital Corp.GECC 22,831, disposed Open Form 4 filing 0000899243-18-030744
2018-12-07 S, Open-market sale Great Elm Capital Corp.GECC 16,491, disposed Open Form 4 filing 0000899243-18-030559
2018-10-22 S, Open-market sale Great Elm Capital Corp.GECC 17,185,906, disposed Open Form 4 filing 0000899243-18-027403
2018-09-12 S, Open-market sale Great Elm Capital Corp.GECC 439,814, disposed Open Form 4 filing 0000899243-18-024517
2018-04-27 S, Open-market sale Great Elm Capital Corp.GECC 18,472, disposed Open Form 4 filing 0000899243-18-010885
2018-04-26 S, Open-market sale Great Elm Capital Corp.GECC 23,169, disposed Open Form 4 filing 0000899243-18-010885
2018-04-25 S, Open-market sale Great Elm Capital Corp.GECC 18,462, disposed Open Form 4 filing 0000899243-18-010885
2018-04-18 S, Open-market sale Great Elm Capital Corp.GECC 17,476, disposed Open Form 4 filing 0000899243-18-010487

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
S, Open-market sale
Open-market sale

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

No transaction line is stored for this entity, so there is nothing to break down by code. The catalog holds its filings; what it does not hold is a single reportable line from them, which is a fact about the parse and about these filings, not about the entity.

How to cite this page

ebomi catalog. Mast Capital Management, LLC, insider transactions. Retrieved 2026-08-25 from https://ebomi.com/insider/0001429074

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.