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JL

John Langton Sennott Jr.

Executive
Ategrity Specialty Insurance Co HoldingsAlleghany CORP /deDarwin Professional Underwriters IncAllied World Assurance Co Holdings, AG
Insider activity · 24 months1 buy0 salesCumulative net flow
Total declarations
47
Companies
4
▲ Purchases (11 ops.)
€972k
▼ Sales (0 ops.)
—

Latest filing published 16 Jun 2026 for Ategrity Specialty Insurance Co Holdings.

Filing timeline

BuySale
John Langton Sennott Jr.

Insider track record

Disclosed buys
11
Disclosed sells
0
Signal history

Closed purchases

Market purchases
11

Not enough history yet: 1 closed purchase, at least 2 are needed.

Purchases by company

Since each purchase

Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.

John Langton Sennott Jr.: trading record in brief

John Langton Sennott Jr. is a declared insider at 4 companies; the most frequent names are Allied World Assurance Co Holdings, AG, Alleghany CORP /de and Darwin Professional Underwriters Inc. The record holds 47 filings, for trades running from 19 May 2006 to 11 June 2026.

On the market, this insider has only ever bought: 11 purchases, €972k in total. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Besides market trades, the filings include 14 share grants and 9 option exercises.

Half of the purchases are above €76k and half below.

The newest entry dates from 16 June 2026: an option exercise, in Ategrity Specialty Insurance Co Holdings. The most recent open-market purchase was published on 16 June 2025, 511 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.

Companies and markets linked to John Langton Sennott Jr.

Open company profiles for insider transactions, fundamentals and analyst consensus when available.

Declarations45 total

25 of 45 declarations