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Insider · CIK 0001384859

Kolchinsky Peter

CIK 0001384859 Name as filed on the most recent filing

Filed as Kolchinsky Peter (248)

1,080 transaction lines · from 248 filings · filed 2006-12-29 to 2026-08-14 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. The 40 most recent are shown; the catalog may hold more for this insider.

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 2026-08-25 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.

11 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 2026-08-25 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2024-08-09 S, Open-market sale An2 Therapeutics, Inc.ANTX 123,940, disposed Open Form 4 filing 0001415889-24-021199
2024-07-22 P, Open-market purchase Artiva Biotherapeutics, Inc.ARTV 2 lines 99,999,996, acquired Open Form 4 filing 0001415889-24-020047
2024-06-27 P, Open-market purchase Eliem Therapeutics, Inc.ELYM 2 lines 49,952,817, acquired Open Form 4 filing 0001415889-24-018708
2024-06-17 P, Open-market purchase Aerovate Therapeutics, Inc.AVTE 1,549,944, acquired Open Form 4 filing 0001415889-24-017703
2024-04-02 P, Open-market purchase Boundless Bio, Inc.BOLD 2 lines 5,000,000, acquired Open Form 4 filing 0001415889-24-010278
2024-03-27 P, Open-market purchase ARS Pharmaceuticals, Inc.SPRY 4,953,290, acquired Open Form 4 filing 0001415889-24-009268
2024-03-27 P, Open-market purchase Nkarta, Inc.NKTX 30,000,000, acquired Open Form 4 filing 0001415889-24-009447
2024-03-26 P, Open-market purchase ARS Pharmaceuticals, Inc.SPRY 4,371,465, acquired Open Form 4 filing 0001415889-24-009268
2024-03-25 P, Open-market purchase ARS Pharmaceuticals, Inc.SPRY 3,964,656, acquired Open Form 4 filing 0001415889-24-009268
2024-03-21 P, Open-market purchase Lenz Therapeutics, Inc.LENZ 2 lines 15,000,075, acquired Open Form 4 filing 0001415889-24-009077
2024-03-04 P, Open-market purchase 89bio, Inc.ETNB 20,722,500, acquired Open Form 4 filing 0001415889-24-007085
2024-02-09 P, Open-market purchase PepGen Inc.PEPG 27,212,790, acquired Open Form 4 filing 0001209191-24-003175
2024-01-11 P, Open-market purchase Solid Biosciences Inc.SLDB 5,000,005, acquired Open Form 4 filing 0001104659-24-003747
2023-12-11 P, Open-market purchase Wave Life Sciences Ltd.WVE 5,000,000, acquired Open Form 4 filing 0001104659-24-004581
2023-12-11 P, Open-market purchase Wave Life Sciences Ltd.WVE 5,000,000, acquired Open Form 4 filing 0001104659-23-125724
2023-09-21 P, Open-market purchase ARS Pharmaceuticals, Inc.SPRY 2 lines 8,183,526, acquired Open Form 4 filing 0001104659-23-103529
2023-08-29 P, Open-market purchase ARS Pharmaceuticals, Inc.SPRY 23,250,000, acquired Open Form 4 filing 0001104659-23-097327
2023-08-18 P, Open-market purchase An2 Therapeutics, Inc.ANTX 16,000,002, acquired Open Form 4 filing 0001104659-23-094274
2023-07-21 P, Open-market purchase Acumen Pharmaceuticals, Inc.ABOS 39,999,998, acquired Open Form 4 filing 0001104659-23-083857
2023-07-19 P, Open-market purchase Janux Therapeutics, Inc.JANX 6,167,800, acquired Open Form 4 filing 0001104659-23-083069
2023-07-05 P, Open-market purchase Black Diamond Therapeutics, Inc.BDTX 4,679,250, acquired Open Form 4 filing 0001104659-23-079144
2023-03-30 P, Open-market purchase Dice Therapeutics, Inc.DICE 5,632,954, acquired Open Form 4 filing 0001104659-23-039250
2023-03-29 P, Open-market purchase Dice Therapeutics, Inc.DICE 1,949,921, acquired Open Form 4 filing 0001104659-23-039250
2023-03-28 P, Open-market purchase Dice Therapeutics, Inc.DICE 7,215,818, acquired Open Form 4 filing 0001104659-23-039250
2023-03-27 P, Open-market purchase Dice Therapeutics, Inc.DICE 4,153,107, acquired Open Form 4 filing 0001104659-23-037172
2023-03-24 P, Open-market purchase 89bio, Inc.ETNB 39,999,993, acquired Open Form 4 filing 0001104659-23-039241
2023-03-24 P, Open-market purchase Dice Therapeutics, Inc.DICE 5,168,041, acquired Open Form 4 filing 0001104659-23-037172
2023-03-23 P, Open-market purchase Dice Therapeutics, Inc.DICE 4,136,224, acquired Open Form 4 filing 0001104659-23-037172
2023-02-14 P, Open-market purchase Mineralys Therapeutics, Inc.MLYS 2 lines 20,000,000, acquired Open Form 4 filing 0001104659-23-022868
2023-01-20 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 24,999,988, acquired Open Form 4 filing 0001104659-23-006213
2023-01-06 P, Open-market purchase Werewolf Therapeutics, Inc.HOWL 4,095,130, acquired Open Form 4 filing 0001104659-23-002799
2023-01-04 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 2 lines 1,314,806, acquired Open Form 4 filing 0001104659-23-001881
2023-01-03 P, Open-market purchase Imara Inc.IMRA 2,516,055, acquired Open Form 4 filing 0001104659-23-001465
2022-12-27 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 24,510, acquired Open Form 4 filing 0001104659-22-130982
2022-12-19 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 582,814, acquired Open Form 4 filing 0001104659-22-129121
2022-12-16 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 7,269,826, acquired Open Form 4 filing 0001104659-22-127883
2022-12-15 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 1,302,474, acquired Open Form 4 filing 0001104659-22-127883
2022-12-14 P, Open-market purchase Fulcrum Therapeutics, Inc.FULC 4,501,574, acquired Open Form 4 filing 0001104659-22-127883
2022-12-09 P, Open-market purchase Imara Inc.IMRA 75,845, acquired Open Form 4 filing 0001104659-22-126294
2022-12-08 P, Open-market purchase Imara Inc.IMRA 39,750, acquired Open Form 4 filing 0001104659-22-126294
2022-11-17 P, Open-market purchase Acrivon Therapeutics, Inc.ACRV 42,368,750, acquired Open Form 4 filing 0001104659-22-120780
2022-10-24 P, Open-market purchase Imara Inc.IMRA 103,459, acquired Open Form 4 filing 0001104659-22-110940
2022-10-21 P, Open-market purchase Imara Inc.IMRA 188,552, acquired Open Form 4 filing 0001104659-22-110940

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
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

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 2
  • Open-market sale 9
  • 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. Kolchinsky Peter, insider transactions. Retrieved 2026-08-25 from https://ebomi.com/insider/0001384859

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.