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Insider · CIK 0001296999

Arkowitz David

CIK 0001296999 Name as filed on the most recent filing

Filed as Arkowitz David (23)

32 transaction lines · from 23 filings · filed 2004-07-29 to 2025-01-13 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 2026-08-20 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.

32 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
2025-01-10 iBio, Inc.
IBIO 		P, Open-market purchase 18,382 acquired 2.72 49,999.04 Form 4, filing 0001104659-25-003061
2024-02-16 Seres Therapeutics, Inc.
MCRB 		S, Open-market sale 3,939 disposed 1.08 4,254.12 Form 4, filing 0000950170-24-016687
2023-10-30 Seres Therapeutics, Inc.
MCRB 		S, Open-market sale 4,066 disposed 1.35 5,489.10 Form 4, filing 0000899243-23-020077
2021-05-10 Flexion Therapeutics Inc
FLXN 		S, Open-market sale 2,229 disposed 7.23 16,115.67 Form 4, filing 0001209191-21-032103
2021-01-05 Flexion Therapeutics Inc
FLXN 		S, Open-market sale 6,073 disposed 11.13 67,592.49 Form 4, filing 0001209191-21-002558
2020-05-07 Flexion Therapeutics Inc
FLXN 		S, Open-market sale 2,413 disposed 10.88 26,253.44 Form 4, filing 0001209191-20-028249
2020-01-03 Flexion Therapeutics Inc
FLXN 		S, Open-market sale 3,095 disposed Not reported Not priced Form 4, filing 0001209191-20-002279
2019-05-31 Flexion Therapeutics Inc
FLXN 		P, Open-market purchase 2,500 acquired 11.05 27,626.75 Form 4, filing 0001209191-19-033898
2019-05-13 Flexion Therapeutics Inc
FLXN 		P, Open-market purchase 4,000 acquired 11.99 47,960.00 Form 4, filing 0001209191-19-029970
2019-05-08 Flexion Therapeutics Inc
FLXN 		S, Open-market sale 2,248 disposed 10.06 22,614.88 Form 4, filing 0001209191-19-028497
2018-11-09 Flexion Therapeutics Inc
FLXN 		P, Open-market purchase 4,000 acquired 16.56 66,221.60 Form 4, filing 0001209191-18-058085
2018-08-09 Flexion Therapeutics Inc
FLXN 		P, Open-market purchase 4,000 acquired 23.42 93,680.00 Form 4, filing 0001209191-18-046163
2017-08-04 Spring Bank Pharmaceuticals, Inc.
SBPH 		P, Open-market purchase 2,300 acquired 12.24 28,152.00 Form 4, filing 0001209191-17-047862
2017-08-04 Spring Bank Pharmaceuticals, Inc.
SBPH 		P, Open-market purchase 200 acquired 12.25 2,450.00 Form 4, filing 0001209191-17-047862
2011-05-31 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 1,500 acquired 13.23 19,845.00 Form 4, filing 0001317757-11-000019
2011-05-31 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 1,500 acquired 13.23 19,845.00 Form 4, filing 0001317757-11-000017
2011-02-24 Amag Pharmaceuticals Inc.
AMAG 		S, Open-market sale 2,205 disposed 17.06 37,617.30 Form 4, filing 0001317757-11-000007
2011-02-24 Amag Pharmaceuticals Inc.
AMAG 		S, Open-market sale 500 disposed 17.10 8,550.00 Form 4, filing 0001317757-11-000007
2010-08-05 Amag Pharmaceuticals Inc.
AMAG 		S, Open-market sale 15,750 disposed Not reported Not priced Form 4, filing 0001317757-10-000020
2010-05-28 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 658 acquired 27.06 17,805.48 Form 4, filing 0001317757-10-000017
2009-12-01 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 172 acquired 31.78 5,466.16 Form 4, filing 0001317757-09-000023
2009-11-12 Amag Pharmaceuticals Inc.
AMAG 		S, Open-market sale 4,459 disposed 43.42 193,587.48 Form 4, filing 0001317757-09-000019
2009-06-02 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 529 acquired 25.61 13,547.69 Form 4, filing 0001317757-09-000019
2008-06-11 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 1,000 acquired 37.50 37,500.00 Form 4, filing 0001104659-08-039713
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 300 acquired 40.38 12,114.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 200 acquired 40.37 8,074.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 100 acquired 40.39 4,039.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 100 acquired 40.39 4,039.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 100 acquired 40.38 4,038.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 100 acquired 40.37 4,037.00 Form 4, filing 0001104659-08-030379
2007-05-05 Amag Pharmaceuticals Inc.
AMAG 		P, Open-market purchase 100 acquired 40.37 4,037.00 Form 4, filing 0001104659-08-030379
2004-07-27 Idenix Pharmaceuticals Inc
IDIX 		P, Open-market purchase 8,000 acquired 14.00 112,000.00 Form 4, filing 0001209191-04-037993

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

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 21
  • Open-market sale 11
  • 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. Arkowitz David, insider transactions. Retrieved 2026-08-20 from https://ebomi.com/insider/0001296999

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.