Insider · CIK 0001870674

Boniface John J.

CIK 0001870674 Name as filed on the most recent filing

Filed as Boniface John J. (40)

46 transaction lines · from 40 filings · filed 2022-03-15 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 2026-08-22 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.

46 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
2026-03-11 S, Open-market sale Sera Prognostics, Inc.SERA 3,095, disposed Open Form 4 filing 0001193125-26-104705
2026-03-09 S, Open-market sale Sera Prognostics, Inc.SERA 5,954, disposed Open Form 4 filing 0001193125-26-100527
2025-12-10 S, Open-market sale Sera Prognostics, Inc.SERA 4,409, disposed Open Form 4 filing 0001193125-25-316498
2025-11-10 S, Open-market sale Sera Prognostics, Inc.SERA 20,350, disposed Open Form 4 filing 0001193125-25-277703
2025-09-11 S, Open-market sale Sera Prognostics, Inc.SERA 4,366, disposed Open Form 4 filing 0000950170-25-114575
2025-08-08 S, Open-market sale Sera Prognostics, Inc.SERA 18,019, disposed Open Form 4 filing 0001870674-25-000005
2025-06-10 S, Open-market sale Sera Prognostics, Inc.SERA 2,130, disposed Open Form 4 filing 0000950170-25-085692
2025-05-08 S, Open-market sale Sera Prognostics, Inc.SERA 12,522, disposed Open Form 4 filing 0000950170-25-068387
2025-03-06 S, Open-market sale Sera Prognostics, Inc.SERA 8,503, disposed Open Form 4 filing 0000950170-25-035800
2025-02-12 S, Open-market sale Sera Prognostics, Inc.SERA 27,091, disposed Open Form 4 filing 0000950170-25-021185
2024-11-11 S, Open-market sale Sera Prognostics, Inc.SERA 34,602, disposed Open Form 4 filing 0000950170-24-125641
2024-08-07 S, Open-market sale Sera Prognostics, Inc.SERA 37,263, disposed Open Form 4 filing 0001534969-24-000166
2024-05-08 S, Open-market sale Sera Prognostics, Inc.SERA 47,010, disposed Open Form 4 filing 0001534969-24-000096
2024-03-28 S, Open-market sale Sera Prognostics, Inc.SERA 221,245, disposed Open Form 4 filing 0001534969-24-000073
2024-03-27 S, Open-market sale Sera Prognostics, Inc.SERA 2 lines 506,608, disposed Open Form 4 filing 0001534969-24-000073
2024-03-26 S, Open-market sale Sera Prognostics, Inc.SERA 204,733, disposed Open Form 4 filing 0001534969-24-000061
2024-03-25 S, Open-market sale Sera Prognostics, Inc.SERA 201,683, disposed Open Form 4 filing 0001534969-24-000059
2024-03-06 S, Open-market sale Sera Prognostics, Inc.SERA 15,009, disposed Open Form 4 filing 0001534969-24-000035
2024-02-06 S, Open-market sale Sera Prognostics, Inc.SERA 45,490, disposed Open Form 4 filing 0001534969-24-000011
2023-12-07 S, Open-market sale Sera Prognostics, Inc.SERA 24,000, disposed Open Form 4 filing 0001534969-23-000124
2022-07-27 S, Open-market sale Sera Prognostics, Inc.SERA 2,220, disposed Open Form 4 filing 0001534969-22-000118
2022-07-26 S, Open-market sale Sera Prognostics, Inc.SERA 5,859, disposed Open Form 4 filing 0001534969-22-000118
2022-07-19 S, Open-market sale Sera Prognostics, Inc.SERA 5,069, disposed Open Form 4 filing 0001534969-22-000116
2022-07-12 S, Open-market sale Sera Prognostics, Inc.SERA 5,014, disposed Open Form 4 filing 0001534969-22-000114
2022-07-05 S, Open-market sale Sera Prognostics, Inc.SERA 4,442, disposed Open Form 4 filing 0001534969-22-000111
2022-06-29 S, Open-market sale Sera Prognostics, Inc.SERA 1,720, disposed Open Form 4 filing 0001534969-22-000109
2022-06-28 S, Open-market sale Sera Prognostics, Inc.SERA 5,150, disposed Open Form 4 filing 0001534969-22-000109
2022-06-21 S, Open-market sale Sera Prognostics, Inc.SERA 3,570, disposed Open Form 4 filing 0001534969-22-000098
2022-06-14 S, Open-market sale Sera Prognostics, Inc.SERA 3,297, disposed Open Form 4 filing 0001534969-22-000095
2022-06-07 S, Open-market sale Sera Prognostics, Inc.SERA 3,543, disposed Open Form 4 filing 0001534969-22-000092
2022-06-01 S, Open-market sale Sera Prognostics, Inc.SERA 1,360, disposed Open Form 4 filing 0001534969-22-000076
2022-05-31 S, Open-market sale Sera Prognostics, Inc.SERA 3,951, disposed Open Form 4 filing 0001534969-22-000076
2022-05-24 S, Open-market sale Sera Prognostics, Inc.SERA 4,197, disposed Open Form 4 filing 0001534969-22-000074
2022-05-17 S, Open-market sale Sera Prognostics, Inc.SERA 4,224, disposed Open Form 4 filing 0001534969-22-000072
2022-05-10 S, Open-market sale Sera Prognostics, Inc.SERA 5,368, disposed Open Form 4 filing 0001534969-22-000070
2022-05-04 S, Open-market sale Sera Prognostics, Inc.SERA 2,170, disposed Open Form 4 filing 0001534969-22-000064
2022-05-03 S, Open-market sale Sera Prognostics, Inc.SERA 5,913, disposed Open Form 4 filing 0001534969-22-000062
2022-04-26 S, Open-market sale Sera Prognostics, Inc.SERA 5,913, disposed Open Form 4 filing 0001534969-22-000060
2022-04-19 S, Open-market sale Sera Prognostics, Inc.SERA 5,668, disposed Open Form 4 filing 0001534969-22-000054
2022-04-12 S, Open-market sale Sera Prognostics, Inc.SERA 7,249, disposed Open Form 4 filing 0001534969-22-000052
2022-04-06 S, Open-market sale Sera Prognostics, Inc.SERA 3,020, disposed Open Form 4 filing 0001534969-22-000044
2022-04-05 S, Open-market sale Sera Prognostics, Inc.SERA 9,129, disposed Open Form 4 filing 0001534969-22-000044
2022-03-29 S, Open-market sale Sera Prognostics, Inc.SERA 10,164, disposed Open Form 4 filing 0001534969-22-000038
2022-03-22 S, Open-market sale Sera Prognostics, Inc.SERA 10,028, disposed Open Form 4 filing 0001534969-22-000010
2022-03-14 S, Open-market sale Sera Prognostics, Inc.SERA 10,737, disposed Open Form 4 filing 0001534969-22-000008

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.

Codes on this page
S, Open-market sale
Open-market sale
Relationships on this page
O, Officer
Officer

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 0
  • Open-market sale 46
  • 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. Boniface John J., insider transactions. Retrieved 2026-08-23 from https://ebomi.com/insider/0001870674

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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