Insider transactions

Mary C Choksi

CIK 1205706 · last filed 2026-10-05

"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.

Loading insider history…
Disclosed Exposure
$16.93M
Companies
3
Total Filings
124
Lifetime Open-Market Net
$72.6K

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

CAR 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 month

Dollar 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

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most 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

Related Filers
WHITE MOUNTAINS INSURANCE GROUP LTD — 11 joint filings, latest 2026-05-22
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
OMC Director 49,092 $80.56 $3.95M $0 61 2026-10-05
WTM Director 1,993 $2160.31 $4.31M $0 10 2026-05-22
CAR Director 84,277 $102.83 $8.67M $72.6K 53 2020-02-25

Recent Filings · Page 12 of 13

124 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2009-08-07 CAR Grant (A) +1,896 $17.5K EDGAR
2009-05-12 CAR Grant (A) +4,581 $17.5K EDGAR
2009-03-11 CAR Buy (P) +2,100 $798 EDGAR
2009-03-09 CAR Buy (P) +25,000 $9.5K EDGAR
2009-03-03 CAR Grant (A) +7,500 $3.0K EDGAR
2008-11-12 CAR Grant (A) +7,500 $11.3K EDGAR
2008-08-11 CAR Grant (A) +2,357 $17.5K EDGAR
2008-05-12 CAR Grant (A) +1,316 $17.5K EDGAR
2008-02-20 CAR Grant (A) +1,389 $16.9K EDGAR
2007-11-09 CAR Grant (A) +1,006 $16.9K EDGAR
Showing 111–120 of 124
Page 12 of 13
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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. 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; missing follow-up Form 4s suggest the notice was cancelled or modified.