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Insider · CIK 0001721035

MPM Oncology Impact Management GP LLC

CIK 0001721035 Name as filed on the most recent filing

Filed as MPM Oncology Impact Management GP LLC (24)

76 transaction lines · from 24 filings · filed 2017-11-06 to 2021-08-25 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
2021-08-25 S, Open-market sale Cullinan Oncology, Inc.CGEM 49,831, disposed Open Form 4 filing 0001209191-21-053380
2021-08-24 S, Open-market sale Cullinan Oncology, Inc.CGEM 1,498,233, disposed Open Form 4 filing 0001209191-21-053380
2021-08-23 S, Open-market sale Cullinan Oncology, Inc.CGEM 1,553,280, disposed Open Form 4 filing 0001209191-21-053380
2021-08-11 S, Open-market sale Cullinan Oncology, Inc.CGEM 72,916, disposed Open Form 4 filing 0001209191-21-051148
2021-06-02 S, Open-market sale Harpoon Therapeutics, Inc.HARP 514,919, disposed Open Form 4 filing 0001209191-21-037379
2021-06-01 S, Open-market sale Harpoon Therapeutics, Inc.HARP 377,956, disposed Open Form 4 filing 0001209191-21-037379
2021-05-28 S, Open-market sale Harpoon Therapeutics, Inc.HARP 3 lines 293,315, disposed Open Form 4 filing 0001209191-21-037379
2021-05-27 S, Open-market sale Harpoon Therapeutics, Inc.HARP 282,850, disposed Open Form 4 filing 0001209191-21-036349
2021-05-26 S, Open-market sale Harpoon Therapeutics, Inc.HARP 64,088, disposed Open Form 4 filing 0001209191-21-036349
2021-05-24 S, Open-market sale Harpoon Therapeutics, Inc.HARP 100,600, disposed Open Form 4 filing 0001209191-21-035558
2021-05-21 S, Open-market sale Harpoon Therapeutics, Inc.HARP 220,430, disposed Open Form 4 filing 0001209191-21-035558
2021-05-20 S, Open-market sale Harpoon Therapeutics, Inc.HARP 238,242, disposed Open Form 4 filing 0001209191-21-034626
2021-05-19 S, Open-market sale Harpoon Therapeutics, Inc.HARP 363,615, disposed Open Form 4 filing 0001209191-21-034626
2021-05-18 S, Open-market sale Harpoon Therapeutics, Inc.HARP 380,369, disposed Open Form 4 filing 0001209191-21-034626
2021-05-17 S, Open-market sale Harpoon Therapeutics, Inc.HARP 93,647, disposed Open Form 4 filing 0001209191-21-033213
2021-05-14 S, Open-market sale Harpoon Therapeutics, Inc.HARP 138,276, disposed Open Form 4 filing 0001209191-21-033213
2021-05-13 S, Open-market sale Harpoon Therapeutics, Inc.HARP 97,391, disposed Open Form 4 filing 0001209191-21-033213
2021-05-12 S, Open-market sale Harpoon Therapeutics, Inc.HARP 609,413, disposed Open Form 4 filing 0001209191-21-032178
2021-05-11 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 453,707, disposed Open Form 4 filing 0001209191-21-032178
2021-05-10 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 373,436, disposed Open Form 4 filing 0001209191-21-032178
2021-05-05 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 229,107, disposed Open Form 4 filing 0001209191-21-030611
2021-05-04 P, Open-market purchase Werewolf Therapeutics, Inc.HOWL 3,920,000, acquired Open Form 4 filing 0001209191-21-030625
2021-05-04 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 685,732, disposed Open Form 4 filing 0001209191-21-029994
2021-05-03 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 710,389, disposed Open Form 4 filing 0001209191-21-029994
2021-04-30 S, Open-market sale Harpoon Therapeutics, Inc.HARP 5,990,314, disposed Open Form 4 filing 0001209191-21-029994
2021-04-29 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 1,493,096, disposed Open Form 4 filing 0001209191-21-029064
2021-04-28 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 1,117,733, disposed Open Form 4 filing 0001209191-21-029064
2021-04-27 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 250,539, disposed Open Form 4 filing 0001209191-21-029064
2021-04-21 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 170,229, disposed Open Form 4 filing 0001209191-21-027939
2021-04-20 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 416,382, disposed Open Form 4 filing 0001209191-21-027611
2021-04-19 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 194,059, disposed Open Form 4 filing 0001209191-21-027611
2021-04-16 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 116,110, disposed Open Form 4 filing 0001209191-21-027611
2021-04-15 S, Open-market sale Harpoon Therapeutics, Inc.HARP 178,181, disposed Open Form 4 filing 0001209191-21-026880
2021-04-14 S, Open-market sale Harpoon Therapeutics, Inc.HARP 2 lines 286,809, disposed Open Form 4 filing 0001209191-21-026880
2021-04-13 S, Open-market sale Harpoon Therapeutics, Inc.HARP 264,940, disposed Open Form 4 filing 0001209191-21-026880

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.

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Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

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. MPM Oncology Impact Management GP LLC, insider transactions. Retrieved 2026-08-22 from https://ebomi.com/insider/0001721035

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.