Gentherm THRM Insider Ownership

NASDAQ THRM
$29.78 -0.61 (-2.01%)
At close: Nov 10, 2026 · 4:00 PM EST

Insider Holdings by Owner

966.41K Shares
William T. Presley183.31K19.0%
Phillip Eyler139.66K14.5%
Jonathan C Douyard69.64K7.2%
Matteo Anversa47.47K4.9%
Jaymi Wilson42.73K4.4%
Other insiders (22)483.59K50.0%

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.55%
▼-1.12% pp QoQ
Shares Held by Insiders
812.27K
filed for Sep 2026
▼-0.69% QoQ
Shares Outstanding
52.50Mn
52,504,512 shares
Direct Holdings
812.27K
Indirect: 0
Net Open-Market Trades
-5.63K
net sold · -$243.06K in Sep 2026
Insiders Holding Shares
27
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Open-Market Insider Trades

Bought Sold
Latest quarter —
Net over range —
Net-buying quarters —

Insider Ownership Summary

Updated

Across the past 12 months, open-market trades by Gentherm insiders totaled $662,600 in purchases (25K shares) and $243,056 in sales (5.62K shares).

Form 4 Holdings

Insiders Holding THRM

Insiders 27
Shares held 966.41K
Of outstanding 1.84%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 William T. Presley President Ceo 183,314 0 183,314 19.0% 26 Oct, 2026
2 Phillip Eyler President Ceo 139,663 0 139,663 14.5% 25 Feb, 2025
3 Jonathan C Douyard Evp, Cfo, Treasurer 69,639 0 69,639 7.2% 18 Mar, 2026
4 Matteo Anversa Evp, Cfo, Treasurer 47,472 0 47,472 4.9% 26 Mar, 2024
5 Jaymi Wilson Svp, Chief Strategy Officer 42,726 0 42,726 4.4% 25 Mar, 2026
6 Sophie Desormiere Director 42,303 0 42,303 4.4% 15 May, 2026
7 Barbara J Runyon Svp, Chro 37,686 0 37,686 3.9% 25 Mar, 2026
8 Rafael Barkas Svp Global Ops Supply Chain 31,893 0 31,893 3.3% 25 Mar, 2026
9 Vishnu Sundaram Svp, Chief Technology Officer 28,473 0 28,473 2.9% 18 Mar, 2026
10 Thomas Stocker President, Gentherm Tech. 28,085 0 28,085 2.9% 25 Mar, 2026
11 Wayne S Iii Kauffman Svp And General Counsel 27,421 0 27,421 2.8% 30 Jul, 2026
12 John Stacey Director 27,112 0 27,112 2.8% 15 May, 2026
13 Byron Shaw Director 26,720 0 26,720 2.8% 22 May, 2023
14 Charles R. Kummeth Director 25,937 0 25,937 2.7% 15 May, 2026
15 Paul Anthony Mascarenas Director 22,677 0 22,677 2.3% 26 Oct, 2026
16 Ronald T Hundzinski Director 22,298 0 22,298 2.3% 15 May, 2026
17 David W Heinzmann Director 21,365 0 21,365 2.2% 15 May, 2026
18 Elizabeth Meter Director 19,664 0 19,664 2.0% 15 May, 2026
19 Hui (Helen) Xu Svp, General Manager, Asia 18,947 0 18,947 2.0% 05 Dec, 2024
20 Yijing Brentano Svp, Strategy, Corp Dev, Ir 18,568 0 18,568 1.9% 04 Jun, 2024
21 Yvonne Hao Director 18,530 0 18,530 1.9% 06 Jun, 2022
22 Chenglong Wang Vp General Manager 17,231 0 17,231 1.8% 25 Mar, 2026
23 Kenneth E Washington Director 15,257 0 15,257 1.6% 15 May, 2026
24 Matthew Fisch Svp Chief Technology Officer 13,614 0 13,614 1.4% 15 Nov, 2022
25 Laura Michele Kowalchik Director 13,395 0 13,395 1.4% 15 May, 2026
26 Breisacher Nicholas Chief Accounting Officer 4,864 0 4,864 0.5% 18 Aug, 2026
27 Jennifer L. Zoldos Chief Accounting Officer 1,553 0 1,553 0.2% 23 Jun, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,714 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
23 Oct, 2026 Paul Anthony Mascarenas Director Acquired P 20,000 $26.63 $532.60K 22,677 Direct
23 Oct, 2026 William T. Presley President Ceo Acquired P 5,000 $26.00 $130.00K 183,314 Direct
01 Oct, 2026 Paul Anthony Mascarenas Director Acquired A 2,677 $0.00 $0 2,677 Direct
17 Aug, 2026 Breisacher Nicholas Chief Accounting Officer Disposed S 925 $43.21 $39.97K 4,864 Direct
29 Jul, 2026 Wayne S Iii Kauffman Svp And General Counsel Disposed S 4,700 $43.21 $203.09K 27,421 Direct
14 May, 2026 Ronald T Hundzinski Director Acquired A 4,292 $0.00 $0 22,298 Direct
14 May, 2026 John Stacey Director Acquired A 4,292 $0.00 $0 27,112 Direct
14 May, 2026 Laura Michele Kowalchik Director Acquired A 4,292 $0.00 $0 13,395 Direct
14 May, 2026 Elizabeth Meter Director Acquired A 4,292 $0.00 $0 19,664 Direct
14 May, 2026 Kenneth E Washington Director Acquired A 4,292 $0.00 $0 15,257 Direct
14 May, 2026 David W Heinzmann Director Acquired A 4,292 $0.00 $0 21,365 Direct
14 May, 2026 Sophie Desormiere Director Acquired A 4,292 $0.00 $0 42,303 Direct
14 May, 2026 Charles R. Kummeth Director Acquired A 4,292 $0.00 $0 25,937 Direct
23 Mar, 2026 Jaymi Wilson Svp, Chief Strategy Officer Acquired A 2,474 $0.00 $0 43,436 Direct
23 Mar, 2026 Wayne S Iii Kauffman Svp And General Counsel Acquired A 2,121 $0.00 $0 33,046 Direct
23 Mar, 2026 Chenglong Wang Vp General Manager Acquired A 266 $0.00 $0 17,231 Direct
23 Mar, 2026 Thomas Stocker President, Gentherm Tech. Acquired A 2,474 $0.00 $0 29,200 Direct
23 Mar, 2026 Breisacher Nicholas Chief Accounting Officer Acquired A 353 $0.00 $0 5,891 Direct
23 Mar, 2026 Barbara J Runyon Svp, Chro Acquired A 2,121 $0.00 $0 38,647 Direct
23 Mar, 2026 Rafael Barkas Svp Global Ops Supply Chain Acquired A 2,121 $0.00 $0 32,500 Direct