Comparable stake leader
BlackRock, Inc.
SEC ownership of Gentherm Inc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000903129.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Aug 2026
- Public ticker
- THRM on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
17 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000903129
- Issuer location
- Novi, MI
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Gentherm Inc (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Aug 2026
13F
13D/G
3/4/5
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
VANGUARD PORTFOLIO MANAGEMENT LLC
6%
DIMENSIONAL FUND ADVISORS LP
5.1%
Trigran Investments, Inc.
4.8%
Presley William T.
0.58%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
15%
from 13D/G
|
$165,005,061
4,837,439 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
6%
from 13D/G
|
$65,933,914
1,932,979 shares
|
— | 30 Jun 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
Company
|
5.1%
|
$53,494,720
1,568,291 shares
|
$0 | 30 Jun 2026 |
| Trigran Investments, Inc. |
13D/G
13F
Company
|
4.8%
|
$53,214,511
1,463,143 shares
|
$0 | 31 Dec 2025 |
| Presley William T. |
3/4/5
President & CEO, Director
|
0.58%
|
$5,946,771
178,314 shares
|
— | 17 Mar 2026 |
| Jonathan C. Douyard |
3/4/5
EVP, CFO, Treasurer
|
0.23%
|
$2,322,460
69,639 shares
|
— | 17 Mar 2026 |
| Hundzinski Ronald T. |
3/4/5
Director
|
0.19%
|
$1,598,889
58,228 shares
|
— | 14 May 2026 |
| Jaymi Wilson |
3/4/5
SVP, Chief Strategy Officer
|
0.14%
|
$1,424,912
42,726 shares
|
— | 23 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$359,634.
Buys
$0
Insiders: 0
Sells
$359,634
Insiders: 3
Net
-$359,634
Shares: -8,973
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 8,973
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 5,625 | $0 | $243,056 | -$243,056 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 3,348 | $0 | $116,577 | -$116,577 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to Gentherm Inc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
Presley William T.
Net 12M change
-$243,056
Latest report
17 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Presley William T. | President & CEO, Director | $5,946,771 | Mixed | 17 Mar 2026 | ||
| Phillip Eyler | Former President & CEO | $5,525,068 | Mixed | 31 Dec 2024 | ||
| Matteo Anversa | EVP, CFO, Treasurer | $2,636,120 | Mixed | 22 Mar 2024 | ||
| Jonathan C. Douyard | EVP, CFO, Treasurer | $2,322,460 | Mixed | 17 Mar 2026 | ||
| Hundzinski Ronald T. | Director | $1,598,889 | Mixed | 14 May 2026 | ||
| Byron Shaw | Director | $1,455,438 | Mixed | 18 May 2023 | ||
| Jaymi Wilson | SVP, Chief Strategy Officer | $1,424,912 | Mixed | 23 Mar 2026 | ||
| Barbara J. Runyon | Svp, Chro | $1,256,828 | Mixed | 23 Mar 2026 | ||
| Wayne S. Kauffman III | SVP and General Counsel | $1,184,861 | -$203,087 | -15% | Filing P/S | 29 Jul 2026 |
| Sophie Desormiere | Director | $1,175,177 | Mixed | 14 May 2026 | ||
| Rafael Barkas | SVP Global Ops & Supply Chain | $1,159,948 | Mixed | 23 Mar 2026 | ||
| Thomas Stocker | President, Gentherm Tech. | $1,021,451 | Mixed | 23 Mar 2026 | ||
| Yvonne Hao | Director | $1,009,329 | Mixed | 02 Jun 2022 | ||
| Yijing Brentano | SVP, Strategy, Corp Dev, IR | $1,002,672 | Filing P/S | 31 May 2024 | ||
| Vishnu Sundaram | SVP, Chief Technology Officer | $949,574 | Mixed | 24 Mar 2026 | ||
| Hui (helen) Xu | SVP, General Manager, Asia | $795,774 | Filing P/S | 05 Dec 2024 | ||
| Matthew Fisch | SVP & Chief Technology Officer | $784,477 | Mixed | 15 Nov 2022 | ||
| John Stacey | Director | $753,171 | Mixed | 14 May 2026 | ||
| Charles R. Kummeth | Director | $720,529 | Mixed | 14 May 2026 | ||
| Chenglong Wang | VP & General Manager | $626,691 | Mixed | 23 Mar 2026 |
Recent insider transactions for Gentherm Inc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Breisacher Nicholas | THRM | Common Stock | Sale | -16% | $39,969 | $43.21 | -925 | 4,864 | 17 Aug 2026 | Direct |
| Wayne S. Kauffman III | THRM | Common Stock | Sale | -14.6% | $203,087 | $43.21 | -4,700 | 27,421 | 29 Jul 2026 | Direct |
| Kenneth E. Washington | THRM | Common Stock | Award | 39.1% | 4,292 | 15,257 | 14 May 2026 | Direct | ||
| John Stacey | THRM | Common Stock | Award | 18.8% | 4,292 | 27,112 | 14 May 2026 | Direct | ||
| Elizabeth Meter | THRM | Common Stock | Award | 27.9% | 4,292 | 19,664 | 14 May 2026 | Direct | ||
| Charles R. Kummeth | THRM | Common Stock | Award | 19.8% | 4,292 | 25,937 | 14 May 2026 | Direct | ||
| Laura Michele Kowalchik | THRM | Common Stock | Award | 47.2% | 4,292 | 13,395 | 14 May 2026 | Direct | ||
| Hundzinski Ronald T. | THRM | Common Stock | Award | 23.8% | 4,292 | 22,298 | 14 May 2026 | Direct | ||
| David W. Heinzmann | THRM | Common Stock | Award | 25.1% | 4,292 | 21,365 | 14 May 2026 | Direct | ||
| Sophie Desormiere | THRM | Common Stock | Award | 11.3% | 4,292 | 42,303 | 14 May 2026 | Direct | ||
| Breisacher Nicholas | THRM | Common Stock | Tax liability | -1.73% | -102 | 5,789 | 23 Mar 2026 | Direct | ||
| Breisacher Nicholas | THRM | Common Stock | Award | 6.37% | 353 | 5,891 | 23 Mar 2026 | Direct | ||
| Rafael Barkas | THRM | Common Stock | Tax liability | -1.87% | -607 | 31,893 | 23 Mar 2026 | Direct | ||
| Rafael Barkas | THRM | Common Stock | Award | 6.98% | 2,121 | 32,500 | 23 Mar 2026 | Direct | ||
| Barbara J. Runyon | THRM | Common Stock | Tax liability | -2.49% | -961 | 37,686 | 23 Mar 2026 | Direct | ||
| Barbara J. Runyon | THRM | Common Stock | Award | 5.81% | 2,121 | 38,647 | 23 Mar 2026 | Direct | ||
| Jaymi Wilson | THRM | Common Stock | Tax liability | -1.63% | -710 | 42,726 | 23 Mar 2026 | Direct | ||
| Jaymi Wilson | THRM | Common Stock | Award | 6.04% | 2,474 | 43,436 | 23 Mar 2026 | Direct | ||
| Wayne S. Kauffman III | THRM | Common Stock | Tax liability | -2.8% | -925 | 32,121 | 23 Mar 2026 | Direct | ||
| Wayne S. Kauffman III | THRM | Common Stock | Award | 6.86% | 2,121 | 33,046 | 23 Mar 2026 | Direct | ||
| Thomas Stocker | THRM | Common Stock | Tax liability | -3.82% | -1,115 | 28,085 | 23 Mar 2026 | Direct | ||
| Thomas Stocker | THRM | Common Stock | Award | 9.26% | 2,474 | 29,200 | 23 Mar 2026 | Direct | ||
| Chenglong Wang | THRM | Common Stock | Award | 1.57% | 266 | 17,231 | 23 Mar 2026 | Direct | ||
| Breisacher Nicholas | THRM | Common Stock | Award | 40.6% | 1,599 | 5,538 | 17 Mar 2026 | Direct | ||
| Vishnu Sundaram | THRM | Common Stock | Award | 36.8% | 7,665 | 28,473 | 17 Mar 2026 | Direct | ||
| Barbara J. Runyon | THRM | Common Stock | Award | 26.6% | 7,665 | 36,526 | 17 Mar 2026 | Direct | ||
| Wayne S. Kauffman III | THRM | Common Stock | Award | 33% | 7,665 | 30,925 | 17 Mar 2026 | Direct | ||
| Rafael Barkas | THRM | Common Stock | Award | 33.8% | 7,665 | 30,379 | 17 Mar 2026 | Direct | ||
| Jaymi Wilson | THRM | Common Stock | Award | 27.9% | 8,940 | 40,962 | 17 Mar 2026 | Direct | ||
| Thomas Stocker | THRM | Common Stock | Award | 50.3% | 8,940 | 26,726 | 17 Mar 2026 | Direct | ||
| Chenglong Wang | THRM | Common Stock | Award | 210.2% | 11,496 | 16,965 | 17 Mar 2026 | Direct | ||
| Jonathan C. Douyard | THRM | Common Stock | Award | 25.3% | 14,049 | 69,639 | 17 Mar 2026 | Direct | ||
| Presley William T. | THRM | Common Stock | Award | 29.1% | 40,230 | 178,314 | 17 Mar 2026 | Direct | ||
| Jaymi Wilson | THRM | Common Stock | Tax liability | -1.98% | -646 | 32,022 | 15 Mar 2026 | Direct | ||
| Vishnu Sundaram | THRM | Common Stock | Tax liability | -2.02% | -430 | 20,808 | 15 Mar 2026 | Direct | ||
| Thomas Stocker | THRM | Common Stock | Tax liability | -5.39% | -1,014 | 17,786 | 15 Mar 2026 | Direct | ||
| Barbara J. Runyon | THRM | Common Stock | Tax liability | -3% | -892 | 28,861 | 15 Mar 2026 | Direct | ||
| Wayne S. Kauffman III | THRM | Common Stock | Tax liability | -3.62% | -874 | 23,260 | 15 Mar 2026 | Direct | ||
| Breisacher Nicholas | THRM | Common Stock | Tax liability | -2.23% | -90 | 3,939 | 15 Mar 2026 | Direct | ||
| Rafael Barkas | THRM | Common Stock | Tax liability | -2.46% | -573 | 22,714 | 15 Mar 2026 | Direct | ||
| Jaymi Wilson | THRM | Common Stock | Tax liability | -3.45% | -1,168 | 32,668 | 14 Mar 2026 | Direct | ||
| Vishnu Sundaram | THRM | Common Stock | Tax liability | -3.04% | -667 | 21,238 | 14 Mar 2026 | Direct | ||
| Thomas Stocker | THRM | Common Stock | Tax liability | -8.91% | -1,838 | 18,800 | 14 Mar 2026 | Direct | ||
| Barbara J. Runyon | THRM | Common Stock | Tax liability | -4.99% | -1,563 | 29,753 | 14 Mar 2026 | Direct | ||
| Presley William T. | THRM | Common Stock | Tax liability | -3.55% | -5,083 | 138,084 | 14 Mar 2026 | Direct | ||
| Wayne S. Kauffman III | THRM | Common Stock | Tax liability | -5.95% | -1,527 | 24,134 | 14 Mar 2026 | Direct | ||
| Jonathan C. Douyard | THRM | Common Stock | Tax liability | -3.26% | -1,873 | 55,590 | 14 Mar 2026 | Direct | ||
| Breisacher Nicholas | THRM | Common Stock | Tax liability | -4.59% | -194 | 4,029 | 14 Mar 2026 | Direct | ||
| Rafael Barkas | THRM | Common Stock | Tax liability | -4.13% | -1,002 | 23,287 | 14 Mar 2026 | Direct | ||
| Presley William T. | THRM | Common Stock | Tax liability | -11.1% | -17,936 | 143,167 | 24 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.