Insider · CIK 0001362376

Sennott John Langton Jr.

CIK 0001362376 Name as filed on the most recent filing

Filed as Sennott John Langton Jr. (1)· Sennott John Langton Jr (7)

11 transaction lines · from 8 filings · filed 2006-05-23 to 2025-06-16 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.

11 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
2025-06-12 P, Open-market purchase Ategrity Specialty Insurance Co HoldingsASIC 499,800, acquired Open Form 4 filing 0001104659-25-059971
2013-06-03 P, Open-market purchase Alleghany Corp /DEY 114,570, acquired Open Form 4 filing 0000775368-13-000037
2013-05-09 P, Open-market purchase Alleghany Corp /DEY 3 lines 393,938, acquired Open Form 4 filing 0000775368-13-000033
2009-11-19 P, Open-market purchase Allied World Assurance Co Holdings LtdAWH 48,250, acquired Open Form 4 filing 0001209191-09-053856
2007-08-13 P, Open-market purchase Darwin Professional Underwriters IncDR 21,250, acquired Open Form 4 filing 0001209191-07-047699
2007-08-10 P, Open-market purchase Darwin Professional Underwriters IncDR 21,700, acquired Open Form 4 filing 0001209191-07-047699
2007-03-09 P, Open-market purchase Darwin Professional Underwriters IncDR 6,605, acquired Open Form 4 filing 0001209191-07-017099
2007-03-02 P, Open-market purchase Darwin Professional Underwriters IncDR 5,938, acquired Open Form 4 filing 0001209191-07-015902
2006-05-19 P, Open-market purchase Darwin Professional Underwriters IncDR 100,001, acquired Open Form 4 filing 0001209191-06-032217

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
P, Open-market purchase
Open-market purchase
Relationships on this page
D, Director
Director
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 11
  • Open-market sale 0
  • 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. Sennott John Langton Jr., insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001362376

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

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