Insider · CIK 0001865116

Buckley Sean Patrick

CIK 0001865116 Name as filed on the most recent filing

Filed as Buckley Sean Patrick (21)

28 transaction lines · from 21 filings · filed 2023-05-18 to 2026-08-18 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.

28 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
2026-08-18 S, Open-market sale Magnite, Inc.MGNI 68,975, disposed Open Form 4 filing 0001865116-26-000009
2026-08-17 S, Open-market sale Magnite, Inc.MGNI 201,068, disposed Open Form 4 filing 0001865116-26-000009
2026-08-06 S, Open-market sale Magnite, Inc.MGNI 2 lines 1,645,316, disposed Open Form 4 filing 0001865116-26-000007
2026-07-07 S, Open-market sale Magnite, Inc.MGNI 404,470, disposed Open Form 4 filing 0001193125-26-299731
2026-06-17 S, Open-market sale Magnite, Inc.MGNI 365,427, disposed Open Form 4 filing 0001193125-26-276264
2025-11-24 S, Open-market sale Magnite, Inc.MGNI 32,089, disposed Open Form 4 filing 0001865116-25-000004
2025-11-18 S, Open-market sale Magnite, Inc.MGNI 59,131, disposed Open Form 4 filing 0001865116-25-000003
2025-09-09 S, Open-market sale Magnite, Inc.MGNI 492,200, disposed Open Form 4 filing 0001415889-25-024106
2025-09-08 S, Open-market sale Magnite, Inc.MGNI 511,200, disposed Open Form 4 filing 0001415889-25-024106
2025-08-19 S, Open-market sale Magnite, Inc.MGNI 218,157, disposed Open Form 4 filing 0001415889-25-022453
2025-08-18 S, Open-market sale Magnite, Inc.MGNI 259,631, disposed Open Form 4 filing 0001415889-25-022453
2025-05-16 S, Open-market sale Magnite, Inc.MGNI 152,455, disposed Open Form 4 filing 0001415889-25-013470
2025-02-19 S, Open-market sale Magnite, Inc.MGNI 201,382, disposed Open Form 4 filing 0001415889-25-005099
2025-02-07 S, Open-market sale Magnite, Inc.MGNI 373,860, disposed Open Form 4 filing 0001415889-25-003399
2024-11-18 S, Open-market sale Magnite, Inc.MGNI 156,016, disposed Open Form 4 filing 0001415889-24-027282
2024-11-11 S, Open-market sale Magnite, Inc.MGNI 2 lines 78,628, disposed Open Form 4 filing 0001415889-24-026693
2024-08-20 S, Open-market sale Magnite, Inc.MGNI 35,411, disposed Open Form 4 filing 0001415889-24-021836
2024-08-19 S, Open-market sale Magnite, Inc.MGNI 32,866, disposed Open Form 4 filing 0001415889-24-021836
2024-07-16 S, Open-market sale Magnite, Inc.MGNI 303,862, disposed Open Form 4 filing 0001415889-24-019671
2024-07-15 S, Open-market sale Magnite, Inc.MGNI 284,302, disposed Open Form 4 filing 0001415889-24-019671
2024-06-05 S, Open-market sale Magnite, Inc.MGNI 292,316, disposed Open Form 4 filing 0001415889-24-015963
2024-05-24 S, Open-market sale Magnite, Inc.MGNI 33,525, disposed Open Form 4 filing 0001415889-24-014763
2024-05-16 S, Open-market sale Magnite, Inc.MGNI 211,563, disposed Open Form 4 filing 0001415889-24-013566
2023-08-16 S, Open-market sale Magnite, Inc.MGNI 43,819, disposed Open Form 4 filing 0001209191-23-046561
2023-06-02 S, Open-market sale Magnite, Inc.MGNI 158,725, disposed Open Form 4 filing 0001209191-23-034826
2023-05-16 S, Open-market sale Magnite, Inc.MGNI 61,363, disposed Open Form 4 filing 0001209191-23-030822

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 28
  • 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. Buckley Sean Patrick, insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001865116

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

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