Gentherm Inc (THRM) Insider Ownership

Historic Insider Ownership Trends

Over the 90-day window ending January 10, 2026, Gentherm's three dominant insider ownership positions are held by President & Ceo William T. Presley (161.10K shares), Other Phillip Eyler (139.66K shares), Evp And Cfo And Treasurer Jonathan C Douyard (65.22K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
William T. Presley President & Ceo 161,103 28 Apr, 2025
Phillip Eyler 139,663 25 Feb, 2025
Jonathan C Douyard Evp And Cfo And Treasurer 65,220 17 Mar, 2025
Matteo Anversa Evp And Cfo And Treasurer 47,472 26 Mar, 2024
Sophie Desormiere 38,011 09 May, 2025
Jaymi Wilson Svp And General Manager Na 33,836 25 Mar, 2025
Barbara J Runyon Svp And Chro 31,316 25 Aug, 2025
Byron Shaw 26,720 22 May, 2023
Wayne S Iii Kauffman Svp And General Counsel 25,661 25 Mar, 2025
Rafael Barkas Svp Global Ops & Supply Chain 24,289 25 Mar, 2025
John Stacey 22,820 09 May, 2025
Vishnu Sundaram Svp And Chief Technology Officer 21,905 30 Sep, 2025
Charles R. Kummeth 21,645 09 May, 2025
Thomas Stocker Svp And General Manager And Europe 20,638 29 Apr, 2025
Yijing Brentano Svp And Strategy And Corp Dev And Ir 19,176 04 Jun, 2024
Hui (Helen) Xu Svp And General Manager And Asia 18,947 05 Dec, 2024
Yvonne Hao 18,530 06 Jun, 2022
Ronald T Hundzinski 18,006 12 May, 2025
David W Heinzmann 17,073 09 May, 2025
Elizabeth Meter 15,372 09 May, 2025
Matthew Fisch Svp & Chief Technology Officer 13,614 15 Nov, 2022
Kenneth E Washington 10,965 13 May, 2025
Laura Michele Kowalchik 9,103 09 May, 2025
Paul Cameron Giberson Svp Global Sales 6,144 03 Aug, 2021
Chenglong Wang Vp & General Manager 5,469 03 Apr, 2025
Breisacher Nicholas Chief Accounting Officer 4,223 29 Aug, 2025
Jennifer L. Zoldos Chief Accounting Officer 1,553 23 Jun, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
26 Sep, 2025 Vishnu Sundaram Common Stock D 1,242 $34.81 21,905 D F
29 Aug, 2025 Breisacher Nicholas Common Stock D 38 $36.85 4,223 D F
21 Aug, 2025 Barbara J Runyon Common Stock D 3,348 $34.82 31,316 D S
13 May, 2025 Kenneth E Washington Common Stock A 1,700 $28.06 10,965 D P
08 May, 2025 David W Heinzmann Common Stock A 5,075 $0.00 17,073 D A
08 May, 2025 David W Heinzmann - - 17,073 D
08 May, 2025 John Stacey Common Stock A 5,075 $0.00 22,820 D A
08 May, 2025 Ronald T Hundzinski Common Stock A 5,075 $0.00 13,006 D A
08 May, 2025 Ronald T Hundzinski Common Stock A 5,000 $26.67 18,006 D P
08 May, 2025 Laura Michele Kowalchik Common Stock A 5,075 $0.00 9,103 D A
08 May, 2025 Charles R. Kummeth Common Stock A 5,075 $0.00 21,645 D A
08 May, 2025 Sophie Desormiere Common Stock A 5,075 $0.00 38,011 D A
08 May, 2025 Kenneth E Washington Common Stock A 5,075 $0.00 9,265 D A
08 May, 2025 Elizabeth Meter Common Stock A 5,075 $0.00 15,372 D A
25 Apr, 2025 Thomas Stocker - - 20,546 D
25 Apr, 2025 Thomas Stocker Common Stock A 92 $25.07 20,638 D P
25 Apr, 2025 Thomas Stocker Common Stock A 229 $24.91 20,546 D P
25 Apr, 2025 Thomas Stocker - - 20,638 D
25 Apr, 2025 William T. Presley Common Stock A 3,000 $24.67 161,103 D P
21 Mar, 2025 Barbara J Runyon Common Stock A 1,215 $0.00 35,028 D A