John Langton Sennott Jr.
CIK 1362376 · SVP, Chief Financial Officer · last filed 2026-06-16
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
Y price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
1411 BROADWAY, 34TH FLOOR
NEW YORK, NY 10018
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ASIC | Director | 30,380 | $24.40 | $741.3K | $499.8K | 2 | 2026-06-16 |
| ALLEGHANY CORP /DE (Y) Delisted | SVP, Chief Financial Officer | 5,549 | $847.79 | $4.70M | $508.5K | 34 | 2019-07-01 |
| Allied World Assurance Co Holdings, AG (AWH) Delisted | EVP, Chief Corp. Strat Officer | 4,798 | $0.08 | $393 | $48.2K | 8 | 2012-02-28 |
| Darwin Professional Underwriters Inc (DR) Delisted | S.V.P. - CFO | 0 | — | — | $43.0K | 3 | 2008-10-21 |
Recent Filings · Page 5 of 5
50 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2011-02-22 | Allied World Assurance Co Holdings, AG (AWH) Delisted | Mixed | +361 | -$35.6K | EDGAR |
| 2010-03-02 | Allied World Assurance Co Holdings, AG (AWH) Delisted | Mixed | +257 | -$22.7K | EDGAR |
| 2010-02-24 | Allied World Assurance Co Holdings, AG (AWH) Delisted | Grant (A) | +160 | $0 | EDGAR |
| 2009-11-20 | Allied World Assurance Co Holdings, AG (AWH) Delisted | Buy (P) | +1,000 | $48.2K | EDGAR |
| 2008-10-21 | Darwin Professional Underwriters Inc (DR) Delisted | Disp (D) | −179,821 | -$5.75M | EDGAR |
| 2008-02-29 | Darwin Professional Underwriters Inc (DR) Delisted | Grant (A) | +3,527 | $79.6K | EDGAR |
| 2007-08-13 | Darwin Professional Underwriters Inc (DR) Delisted | Buy (P) | +2,000 | $43.0K | EDGAR |
| 2007-03-12 | — | Buy (P) | +250 | $6.6K | |
| 2007-03-06 | — | Buy (P) | +250 | $5.9K | |
| 2007-02-26 | — | Grant (A) | +2,544 | $64.4K |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment, and an amended or cancelled notice is not listed. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes. Someone who is no longer an officer or director (or never was) files no Form 4, so for them a sale shows up only on a later notice, which lists the seller's sales from the 3 months before it. "No sale on file" means neither record shows one; a dash in Net $ means the value filed on the notice doesn't fit the stock's price (likely a typo).