Home

JOHN U CLARKE

CIK 1225312 · Director, Chairman & CEO · last filed 2026-06-03

JOHN U CLARKE is a Director, Chairman & CEO who has filed 74 SEC Form 4 insider transactions across 6 companies since 2007. Across all open-market trades the lifetime net is +$983.0K, making them a net buyer over the disclosed history.

"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

$0

Companies

6

Total Filings

74

Lifetime Open-Market Net

$983.0K

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
Thermon Group Holdings, Inc. (THR) Delisted Director 41,570 $61.14 $2.54M $232.4K 30 2026-04-02
Ranger Oil Corp (PVA) Delisted Director 131,837 — — $664.0K 26 2015-10-01
Glori Energy Inc. (GLRI) Delisted Director 25,918 — — $0 1 2015-01-30
NATCO GROUP INC (NTG) Delisted Director, Chairman & CEO 422 $53.36 $22.5K $86.5K 6 2009-11-18
HOUSTON EXPLORATION CO (THX) Delisted Director 9,288 — — $0 1 2007-06-01
HARVEST NATURAL RESOURCES, INC. (HNR) Delisted Director 24,114 — — $0 1 2007-05-25

Recent Filings

74 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
2026-06-03 — Disp (D) −41,570 $0
2026-04-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +531 $27.5K EDGAR
2026-01-05 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +740 $27.5K EDGAR
2025-10-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +1,008 $27.5K EDGAR
2025-07-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +830 $23.7K EDGAR
2025-04-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +843 $23.7K EDGAR
2025-01-03 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +825 $23.7K EDGAR
2024-10-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +805 $23.7K EDGAR
2024-10-02 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +798 $23.7K EDGAR
2024-04-03 Thermon Group Holdings, Inc. (THR) Delisted Grant (A) +722 $23.7K EDGAR
Showing 1–10 of 74
Page 1 of 8
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.