William N Jr Thorndike

CIK 1437827 · last filed 2026-05-11

William N Jr Thorndike is a corporate insider who has filed 46 SEC Form 4 insider transactions across 3 companies since 2008. The most recent filing, for CNX, was dated May 11, 2026. Across all open-market trades the lifetime net is −$14.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $333.5M across reported positions.

"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

$333.47M

Companies

3

Total Filings

46

Lifetime Open-Market Net

-$14.54M

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
CNX Director 470,355 $33.15 $15.59M $1.10M 24 2026-05-11
PRM Director 8,735,656 $35.47 $309.85M -$15.40M 10 2026-03-11
LMAT Director 87,202 $91.96 $8.02M -$241.0K 12 2013-07-26

Recent Filings

46 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-11 CNX Grant (A) +8,770 $0 EDGAR
2026-05-06 CNX Mixed +54,297 -$5.9K EDGAR
2026-03-11 PRM Sell (S) −325,000 -$7.60M EDGAR
2026-03-06 PRM Sell (S) −325,000 -$7.80M EDGAR
2026-03-05 PRM Grant (A) +5,582,492 $0 EDGAR
2025-12-11 PRM Gift (G) −673,685 $0 EDGAR
2025-06-24 PRM Other (J) +746,767 $0 EDGAR
2024-11-08 PRM Exer (M) +125,000 $1.50M EDGAR
2024-05-06 CNX Grant (A) +17,242 $0 EDGAR
2024-03-18 PRM Other (J) +667,536 $0 EDGAR
Showing 110 of 46
Page 1 of 5
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.