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Insider · CIK 0001586226

Tzianabos Arthur

CIK 0001586226 Name as filed on the most recent filing

Filed as Tzianabos Arthur (18)

23 transaction lines · from 18 filings · filed 2013-09-12 to 2026-03-12 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 2026-08-21 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.

23 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 2026-08-21 05:23 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2026-03-10 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 4,355 disposed 40.00 174,214.37 Form 4, filing 0001586226-26-000002
2024-03-25 Q32 Bio Inc.
QTTB 		S, Open-market sale 265 disposed 24.20 6,413.00 Form 4, filing 0000950170-24-096986
2024-01-09 Homology Medicines, Inc.
FIXX 		S, Open-market sale 13,037 disposed 0.57 7,445.43 Form 4, filing 0000950170-24-015944
2023-01-09 Homology Medicines, Inc.
FIXX 		S, Open-market sale 10,616 disposed 1.39 14,761.55 Form 4, filing 0000899243-23-001574
2022-01-05 Homology Medicines, Inc.
FIXX 		S, Open-market sale 5,354 disposed 3.78 20,239.19 Form 4, filing 0000899243-22-001743
2021-02-19 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 10,000 disposed 60.67 606,652.00 Form 4, filing 0001209191-21-013320
2020-11-23 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 10,196 disposed 45.97 468,720.32 Form 4, filing 0001209191-20-060549
2020-11-23 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 5,294 disposed 46.85 248,009.08 Form 4, filing 0001209191-20-060549
2020-11-23 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 4,300 disposed 45.08 193,838.41 Form 4, filing 0001209191-20-060549
2020-11-23 Stoke Therapeutics, Inc.
STOK 		S, Open-market sale 210 disposed 47.61 9,997.87 Form 4, filing 0001209191-20-060549
2020-02-03 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 16.16 202,021.25 Form 4, filing 0000899243-20-003246
2020-01-02 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 20.50 256,191.25 Form 4, filing 0000899243-20-000316
2019-12-02 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 16.25 203,176.25 Form 4, filing 0000899243-19-028394
2019-11-29 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 16.04 200,558.75 Form 4, filing 0000899243-19-028394
2019-10-01 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,400 disposed 17.39 215,644.68 Form 4, filing 0000899243-19-024657
2019-10-01 Homology Medicines, Inc.
FIXX 		S, Open-market sale 100 disposed 18.23 1,823.00 Form 4, filing 0000899243-19-024657
2019-09-03 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 18.75 234,320.00 Form 4, filing 0000899243-19-022839
2019-08-01 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 17.37 217,111.25 Form 4, filing 0000899243-19-020990
2019-07-01 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 18.98 237,300.00 Form 4, filing 0000899243-19-019172
2019-06-03 Homology Medicines, Inc.
FIXX 		S, Open-market sale 12,500 disposed 19.86 248,262.50 Form 4, filing 0000899243-19-015645
2015-04-09 OvaScience, Inc.
OVAS 		P, Open-market purchase 225 acquired 28.77 6,473.25 Form 4, filing 0001179110-15-006172
2015-04-08 OvaScience, Inc.
OVAS 		P, Open-market purchase 175 acquired 28.04 4,907.00 Form 4, filing 0001179110-15-006087
2013-09-12 OvaScience, Inc.
OVAS 		P, Open-market purchase 1,000 acquired 10.32 10,320.00 Form 4, filing 0001104659-13-069617

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 20
  • 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. TZIANABOS ARTHUR, insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001586226

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.