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THR Insider Trading & Form 4 Activity

Last filing: Jun 3, 2026·25 days ago
NEUTRAL · LAST 90 DAYS
0%
buyers
$0
0 buys
$0
0 sells
$0
net buying
0
insiders
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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Richey Victor L JR
Director
$0
Fix Roger L
Director
$0
Thames Bruce
President & CEO
$0
Lucas Thomas Gregory
VP, CAO
$0
Dalgetty Linda
Director
$0
Ryan Tarkington
SVP, General Counsel
$0
Roberto Kuahara
SVP, Operations
$0
Clarke John U
Director
$0

Recent transactions

Every Form 4 transaction for THR, newest first.

OTHER
Buntin David · SVP, Products & Technology
Tx Jun 1·Filed Jun 3·EDGAR ↗
99,767 sh
AWARD
Buntin David · SVP, Products & Technology
Tx Jun 1·Filed Jun 3·EDGAR ↗
19,386 sh
OTHER
Richey Victor L JR · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
8,052 sh
OTHER
George Marcus J · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
50 sh
OTHER
George Marcus J · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
52,639 sh
OTHER
Schott Jan L · SVP, CFO
Tx Jun 1·Filed Jun 3·EDGAR ↗
35,742 sh
AWARD
Schott Jan L · SVP, CFO
Tx Jun 1·Filed Jun 3·EDGAR ↗
14,014 sh
OTHER
Cerovski Thomas N · SVP, Chief Operating Officer
Tx Jun 1·Filed Jun 3·EDGAR ↗
84,079 sh
AWARD
Cerovski Thomas N · SVP, Chief Operating Officer
Tx Jun 1·Filed Jun 3·EDGAR ↗
20,941 sh
OTHER
Harris-Peterson Candace · SVP, Human Resources
Tx Jun 1·Filed Jun 3·EDGAR ↗
52,063 sh
AWARD
Harris-Peterson Candace · SVP, Human Resources
Tx Jun 1·Filed Jun 3·EDGAR ↗
13,556 sh
OTHER
Strzelecki Angela · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
13,643 sh
OTHER
Clarke John U · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
41,570 sh
OTHER
Roberto Kuahara · SVP, Operations
Tx Jun 1·Filed Jun 3·EDGAR ↗
59,807 sh
AWARD
Roberto Kuahara · SVP, Operations
Tx Jun 1·Filed Jun 3·EDGAR ↗
16,269 sh
OTHER
Ryan Tarkington · SVP, General Counsel
Tx Jun 1·Filed Jun 3·EDGAR ↗
68,531 sh
AWARD
Ryan Tarkington · SVP, General Counsel
Tx Jun 1·Filed Jun 3·EDGAR ↗
15,113 sh
OTHER
Dalgetty Linda · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
34,584 sh
OTHER
Lucas Thomas Gregory · VP, CAO
Tx Jun 1·Filed Jun 3·EDGAR ↗
19,282 sh
AWARD
Lucas Thomas Gregory · VP, CAO
Tx Jun 1·Filed Jun 3·EDGAR ↗
6,976 sh
OTHER
Thames Bruce · President & CEO
Tx Jun 1·Filed Jun 3·EDGAR ↗
468,595 sh
AWARD
Thames Bruce · President & CEO
Tx Jun 1·Filed Jun 3·EDGAR ↗
78,307 sh
OTHER
Fix Roger L · Director
Tx Jun 1·Filed Jun 3·EDGAR ↗
35,375 sh
AWARD
Ryan Tarkington · SVP, General Counsel
Tx May 12·Filed May 15·EDGAR ↗
4,637 sh
AWARD
Ryan Tarkington · SVP, General Counsel
Tx May 12·Filed May 15·EDGAR ↗
5,397 sh
AWARD
Ryan Tarkington · SVP, General Counsel
Tx May 12·Filed May 15·EDGAR ↗
4,050 sh
TAX
Ryan Tarkington · SVP, General Counsel
Tx May 12·Filed May 15·EDGAR ↗
3,564 sh @ $64.69
$231K
AWARD
Thames Bruce · President & CEO
Tx May 12·Filed May 14·EDGAR ↗
21,069 sh
TAX
Roberto Kuahara · SVP, Operations
Tx May 12·Filed May 14·EDGAR ↗
3,596 sh @ $64.69
$233K
AWARD
Roberto Kuahara · SVP, Operations
Tx May 12·Filed May 14·EDGAR ↗
4,637 sh
AWARD
Roberto Kuahara · SVP, Operations
Tx May 12·Filed May 14·EDGAR ↗
4,050 sh
AWARD
Roberto Kuahara · SVP, Operations
Tx May 12·Filed May 14·EDGAR ↗
5,397 sh
TAX
Buntin David · SVP, Thermon Heat Tracing
Tx May 12·Filed May 14·EDGAR ↗
3,553 sh @ $64.69
$230K
AWARD
Buntin David · SVP, Thermon Heat Tracing
Tx May 12·Filed May 14·EDGAR ↗
6,183 sh
AWARD
Buntin David · SVP, Thermon Heat Tracing
Tx May 12·Filed May 14·EDGAR ↗
4,050 sh
AWARD
Buntin David · SVP, Thermon Heat Tracing
Tx May 12·Filed May 14·EDGAR ↗
5,397 sh
TAX
Cerovski Thomas N · SVP, Global Sales
Tx May 12·Filed May 14·EDGAR ↗
7,322 sh @ $64.69
$474K
AWARD
Cerovski Thomas N · SVP, Global Sales
Tx May 12·Filed May 14·EDGAR ↗
6,956 sh
AWARD
Cerovski Thomas N · SVP, Global Sales
Tx May 12·Filed May 14·EDGAR ↗
4,050 sh
AWARD
Cerovski Thomas N · SVP, Global Sales
Tx May 12·Filed May 14·EDGAR ↗
5,397 sh
TAX
Lucas Thomas Gregory · VP, CAO
Tx May 12·Filed May 14·EDGAR ↗
2,412 sh @ $64.69
$156K
AWARD
Lucas Thomas Gregory · VP, CAO
Tx May 12·Filed May 14·EDGAR ↗
2,318 sh
AWARD
Lucas Thomas Gregory · VP, CAO
Tx May 12·Filed May 14·EDGAR ↗
1,618 sh
AWARD
Lucas Thomas Gregory · VP, CAO
Tx May 12·Filed May 14·EDGAR ↗
2,157 sh
TAX
Harris-Peterson Candace · SVP, Human Resources
Tx May 12·Filed May 14·EDGAR ↗
2,314 sh @ $64.69
$150K
AWARD
Harris-Peterson Candace · SVP, Human Resources
Tx May 12·Filed May 14·EDGAR ↗
3,864 sh
AWARD
Harris-Peterson Candace · SVP, Human Resources
Tx May 12·Filed May 14·EDGAR ↗
2,430 sh
AWARD
Harris-Peterson Candace · SVP, Human Resources
Tx May 12·Filed May 14·EDGAR ↗
3,238 sh
AWARD
Thames Bruce · President & CEO
Tx May 12·Filed May 14·EDGAR ↗
28,067 sh
TAX
Thames Bruce · President & CEO
Tx May 12·Filed May 14·EDGAR ↗
19,331 sh @ $64.69
$1.3M

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About THR insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for THR from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying THR always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on THR when they form.

Where does THR insider trading data come from?

Every Form 4 filing for THR is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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