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Insider · CIK 0001346824

RA Capital Management, L.P.

CIK 0001346824 Name as filed on the most recent filing

Filed as RA Capital Management, L.P. (159)· RA Capital Management, LLC (91)

1,078 transaction lines · from 250 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 2026-08-20 05:22 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.

5 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 2026-08-20 05:22 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2026-08-12 Septerna, Inc.
SEPN 		S, Open-market sale 746,500 disposed 42.50 31,726,250.00 Form 4, filing 0001231919-26-000938
2026-08-12 Septerna, Inc.
SEPN 		S, Open-market sale 746,500 disposed 42.50 31,726,250.00 Form 4, filing 0001231919-26-000938
2026-07-31 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 24,944 acquired 9.93 247,693.92 Form 4, filing 0001231919-26-000817
2026-07-29 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 20,824 acquired 9.99 208,031.76 Form 4, filing 0001231919-26-000817
2026-07-24 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 41,319 acquired 9.99 412,776.81 Form 4, filing 0001231919-26-000808
2026-07-23 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 59,880 acquired 9.96 596,404.80 Form 4, filing 0001231919-26-000791
2026-07-22 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 84,124 acquired 9.93 835,351.32 Form 4, filing 0001231919-26-000791
2026-07-22 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 47,250 acquired 29.77 1,406,632.50 Form 4, filing 0001231919-26-000779
2026-07-21 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 120,582 acquired 9.55 1,151,558.10 Form 4, filing 0001231919-26-000791
2026-07-21 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 37,723 acquired 30.00 1,131,690.00 Form 4, filing 0001231919-26-000779
2026-07-21 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 21,696 acquired 27.96 606,620.16 Form 4, filing 0001231919-26-000779
2026-07-21 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 6,504 acquired 29.17 189,721.68 Form 4, filing 0001231919-26-000779
2026-07-20 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 98,433 acquired 27.13 2,670,487.29 Form 4, filing 0001231919-26-000779
2026-07-20 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 32,987 acquired 27.72 914,399.64 Form 4, filing 0001231919-26-000779
2026-07-17 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 7,882 acquired 8.95 70,543.90 Form 4, filing 0001231919-26-000774
2026-07-16 Vor Biopharma Inc.
VOR 		S, Open-market sale 213 disposed 19.75 4,206.75 Form 4, filing 0001231919-26-000776
2026-07-16 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 152,472 acquired 8.93 1,361,574.96 Form 4, filing 0001231919-26-000774
2026-07-13 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 6,522 acquired 8.94 58,306.68 Form 4, filing 0001231919-26-000790
2026-07-13 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 6,552 acquired 8.94 58,574.88 Form 4, filing 0001231919-26-000764
2026-07-10 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 15,102 acquired 8.97 135,464.94 Form 4, filing 0001231919-26-000764
2026-06-26 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 1,876 acquired 8.98 16,846.48 Form 4, filing 0001231919-26-000711
2026-06-25 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 31,000 acquired 8.88 275,280.00 Form 4, filing 0001231919-26-000711
2026-06-17 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 389,216 disposed 0.35 136,225.60 Form 4, filing 0001231919-26-000688
2026-06-17 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 27,695 disposed 0.35 9,693.25 Form 4, filing 0001231919-26-000688
2026-06-16 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 139,686 disposed 0.37 51,683.82 Form 4, filing 0001231919-26-000654
2026-06-16 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 9,939 disposed 0.37 3,677.43 Form 4, filing 0001231919-26-000654
2026-06-16 Hemab Therapeutics Holdings, Inc.
COAG 		P, Open-market purchase 61,523 acquired 24.98 1,536,844.54 Form 4, filing 0001231919-26-000665
2026-06-16 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 124,893 acquired 8.89 1,110,298.77 Form 4, filing 0001231919-26-000656
2026-06-15 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 120,216 disposed 0.39 46,884.24 Form 4, filing 0001231919-26-000654
2026-06-15 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 8,554 disposed 0.39 3,336.06 Form 4, filing 0001231919-26-000654
2026-06-15 Hemab Therapeutics Holdings, Inc.
COAG 		P, Open-market purchase 6,146 acquired 24.89 152,973.94 Form 4, filing 0001231919-26-000665
2026-06-15 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 15,414 acquired 8.99 138,571.86 Form 4, filing 0001231919-26-000656
2026-06-12 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 159,119 disposed 0.40 63,647.60 Form 4, filing 0001231919-26-000654
2026-06-12 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 11,322 disposed 0.40 4,528.80 Form 4, filing 0001231919-26-000654
2026-06-12 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 391,019 acquired 8.57 3,351,032.83 Form 4, filing 0001231919-26-000656
2026-06-11 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 548,580 acquired 7.91 4,339,267.80 Form 4, filing 0001231919-26-000625
2026-06-11 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 19,728,353 acquired 20.00 394,567,060.00 Form 4, filing 0001231919-26-000638
2026-06-11 Parabilis Medicines, Inc.
PBLS 		P, Open-market purchase 1,460,397 acquired 20.00 29,207,940.00 Form 4, filing 0001231919-26-000638
2026-06-11 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 245,066 disposed 0.38 93,125.08 Form 4, filing 0001231919-26-000628
2026-06-11 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 17,437 disposed 0.38 6,626.06 Form 4, filing 0001231919-26-000628
2026-06-10 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 103 acquired 7.00 721.00 Form 4, filing 0001231919-26-000625
2026-06-10 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 42,872 disposed 0.37 15,862.64 Form 4, filing 0001231919-26-000628
2026-06-10 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 3,051 disposed 0.37 1,128.87 Form 4, filing 0001231919-26-000628
2026-06-09 Artiva Biotherapeutics, Inc.
ARTV 		P, Open-market purchase 479,039 acquired 6.91 3,310,159.49 Form 4, filing 0001231919-26-000625
2026-06-09 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 345,235 disposed 0.37 127,736.95 Form 4, filing 0001231919-26-000628
2026-06-09 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 24,565 disposed 0.37 9,089.05 Form 4, filing 0001231919-26-000628
2026-05-20 Hemab Therapeutics Holdings, Inc.
COAG 		P, Open-market purchase 996 acquired 24.94 24,840.24 Form 4, filing 0001231919-26-000521
2026-05-19 Hemab Therapeutics Holdings, Inc.
COAG 		P, Open-market purchase 3,802 acquired 24.97 94,935.94 Form 4, filing 0001231919-26-000521
2026-05-12 Hemab Therapeutics Holdings, Inc.
COAG 		P, Open-market purchase 6,387 acquired 24.90 159,036.30 Form 4, filing 0001231919-26-000495
2026-05-12 Werewolf Therapeutics, Inc.
HOWL 		S, Open-market sale 94,432 disposed 0.64 60,436.48 Form 4, filing 0001231919-26-000485

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. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.

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 3
  • Open-market sale 2
  • 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. RA CAPITAL MANAGEMENT, L.P., insider transactions. Retrieved 2026-08-20 from https://ebomi.com/insider/0001346824

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.