GENTHERM INC THRM
COM · Common Stock · CUSIP 37253A103 · ISIN US37253A1034
American thermal management technologies company
- SectorConsumer discretionary
- IndustryMotor Vehicle Parts & Accessories
- HeadquartersNovi, MI
- Founded1991
- Websitegentherm.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.9m this quarter). Holder counts are more reliable. Shares outstanding: 30.7m as of 2026-07-17, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $34.09. Options: 2 managers hold calls ($2.0m notional), 1 hold puts ($951.7k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 216 |
| Q4 2022 | 226 |
| Q1 2023 | 234 |
| Q2 2023 | 222 |
| Q3 2023 | 228 |
| Q4 2023 | 230 |
| Q1 2024 | 240 |
| Q2 2024 | 237 |
| Q3 2024 | 236 |
| Q4 2024 | 224 |
| Q1 2025 | 221 |
| Q2 2025 | 226 |
| Q3 2025 | 222 |
| Q4 2025 | 249 |
| Q1 2026 | 240 |
| Q2 2026 | 256 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 95 | 114 |
| Q4 2024 | 107 | 108 |
| Q1 2025 | 114 | 101 |
| Q2 2025 | 144 | 86 |
| Q3 2025 | 109 | 107 |
| Q4 2025 | 104 | 113 |
| Q1 2026 | 122 | 123 |
| Q2 2026 | 138 | 93 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $3.0k | $10.2m | 3407.00 |
| Q4 2025 | $3.6k | $10.9m | 3000.83 |
| Q1 2026 | $1.8m | $9.1m | 5.20 |
| Q2 2026 | $2.0m | $951.7k | 0.48 |
Biggest buyers
| SEGALL BRYANT & HAMILL, LLC | Added | +379.9k |
| GOLDMAN SACHS GROUP INC | Added | +359.2k |
| AMERIPRISE FINANCIAL INC | Added | +268.2k |
| MACKENZIE FINANCIAL CORP | New | +246.8k |
| UBS Group AG | Added | +151.0k |
| BlackRock, Inc. | Added | +140.5k |
| AMERICAN CENTURY COMPANIES INC | Added | +131.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +129.0k |
| FRANKLIN RESOURCES INC | Added | +119.3k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Added | +111.5k |
Biggest sellers
| DEUTSCHE BANK AG\ | Reduced | -280.0k |
| ROYAL BANK OF CANADA | Reduced | -277.2k |
| Qube Research & Technologies Ltd | Reduced | -210.2k |
| Trigran Investments, Inc. | Reduced | -184.2k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -165.0k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | Reduced | -153.1k |
| LAZARD ASSET MANAGEMENT LLC | Reduced | -115.0k |
| KENNEDY CAPITAL MANAGEMENT LLC | Sold out | -107.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -95.5k |
| TUDOR INVESTMENT CORP ET AL | Sold out | -94.2k |
Biggest calls
| PEAK6 LLC | New | $1.7m50.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $279.7k8.2k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $951.7k27.9k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-30 | 15.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.0% |
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2026-07-14 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), Trigran Investments, Inc. (4.8%, 2026-02-13)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 4 | $1.5m | $1.3m |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 4 | $263.1k | 0 | — | — |
| Q3 2025 | 0 | — | 1 | $116.6k | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 2 | $243.1k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-17 | Nicholas Breisacher Chief Accounting Officer | Sold | $40.0k925 shares |
| 2026-07-29 | Kauffman Wayne S III SVP and General Counsel | Sold | $203.1k4.7k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 4.8m $165.0m | Added +140.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 1.9m $65.9m | Added +129.0k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.6m $53.5m | Added +93.8k |
| Harvey Partners, LLC 3.14% of their portfolio | 1.3m $45.2m | Added +92.6k |
| STATE STREET CORP 0.00% of their portfolio | 1.3m $44.7m | Added +66.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.3m $44.5m | Added +24.1k |
| SEGALL BRYANT & HAMILL, LLC 0.53% of their portfolio | 1.3m $44.5m | Added +379.9k |
| Global Alpha Capital Management Ltd. 2.43% of their portfolio | 1.2m $40.5m | Reduced -4.8k |
| Trigran Investments, Inc. 7.28% of their portfolio | 1.2m $39.7m | Reduced -184.2k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.11% of their portfolio | 1.1m $38.7m | Reduced -38.7k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 894.1k $30.5m | Added +131.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 818.6k $27.9m | Added +47.5k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.08% of their portfolio | 815.7k $27.8m | Reduced -153.1k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 751.0k $25.6m | Added +268.2k |
| ROYCE & ASSOCIATES LP 0.16% of their portfolio | 593.2k $20.2m | Added +103.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 578.4k $19.7m | Added +23.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 541.0k $18.5m | Added +359.2k |
| MORGAN STANLEY 0.00% of their portfolio | 531.5k $18.1m | Added +83.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 467.6k $15.9m | Reduced -54.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 364.1k $12.4m | Added +24.1k |
| Invesco Ltd. 0.00% of their portfolio | 325.5k $11.1m | Reduced -43.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 292.8k $10.0m | Reduced -15.0k |
| Bastion Asset Management Inc. 3.25% of their portfolio | 288.9k $9.6m | Added +78.7k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 288.5k $9.8m | Added +76.1k |
| UBS Group AG 0.00% of their portfolio | 280.5k $9.6m | Added +151.0k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 272.2k $9.3m | Added +18.6k |
| Hillsdale Investment Management Inc. 0.21% of their portfolio | 270.4k $9.2m | Added +64.0k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.08% of their portfolio | 254.7k $8.7m | Added +17.6k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 248.7k $8.5m | Reduced -210.2k |
| MACKENZIE FINANCIAL CORP 0.01% of their portfolio | 246.8k $8.4m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 236.8k $8.0m | Added +99.2k |
| Divisar Capital Management LLC 1.80% of their portfolio | 229.0k $7.8m | Added +70.0k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 210.5k $7.2m | Reduced -565 |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 201.6k $6.9m | Added +5.8k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 199.9k $6.8m | Added +119.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 176.0k $6.0m | Reduced -95.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 165.7k $5.7m | Added +1.4k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 161.2k $5.5m | Added +52.1k |
| Creative Planning 0.00% of their portfolio | 152.5k $5.2m | Added +15.6k |
| Man Group plc 0.01% of their portfolio | 146.5k $5.0m | Added +23.8k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 141.6k $4.8m | Added +111.5k |
| BESSEMER GROUP INC 0.01% of their portfolio | 129.7k $4.4m | Unchanged |
| Empowered Funds, LLC 0.02% of their portfolio | 127.8k $4.4m | Added +91.5k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 126.5k $4.3m | Reduced -115.0k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 124.1k $4.2m | Added +11.3k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 118.4k $4.0m | Added +5.1k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 117.0k $4.0m | Added +4.4k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.48% of their portfolio | 108.0k $3.7m | Reduced -5.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 107.3k $3.7m | Reduced -2.6k |
| MARTINGALE ASSET MANAGEMENT L P 0.09% of their portfolio | 106.3k $3.6m | Added +8.2k |
| Edenbrook Capital, LLC 1.14% of their portfolio | 95.4k $3.3m | New |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P 2.49% of their portfolio | 95.0k $3.2m | Reduced -5.0k |
| Linden Thomas Advisory Services, LLC 0.22% of their portfolio | 81.7k $2.8m | Added +8.1k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 81.3k $2.8m | Reduced -14.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 78.3k $2.7m | Reduced -7.6k |
| Nuveen, LLC 0.00% of their portfolio | 76.6k $2.6m | Reduced -16.6k |
| CONNORS INVESTOR SERVICES INC 0.23% of their portfolio | 76.3k $2.6m | Reduced -443 |
| SEI INVESTMENTS CO 0.00% of their portfolio | 73.4k $2.5m | Reduced -33.2k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 71.1k $2.4m | Added +11.6k |
| Harber Asset Management LLC 1.45% of their portfolio | 71.0k $2.4m | New |
| Legal & General Group Plc 0.00% of their portfolio | 70.0k $2.4m | Reduced -42 |
| NORGES BANK 0.00% of their portfolio | 65.5k $2.2m | Not comparable |
| Bridge City Capital, LLC 0.49% of their portfolio | 63.3k $2.2m | Reduced -1.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 61.1k $2.1m | Added +2.7k |
| Swiss National Bank 0.00% of their portfolio | 59.9k $2.0m | Unchanged |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 58.7k $2.0m | Added +15.7k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 54.1k $1.8m | Added +10.2k |
| Atom Investors LP 0.15% of their portfolio | 49.1k $1.7m | New |
| XTX Topco Ltd 0.02% of their portfolio | 49.0k $1.7m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 47.6k $1.6m | Added +3.3k |
| HRT FINANCIAL LP 0.00% of their portfolio | 46.4k $1.6m | New |
| Legato Capital Management LLC 0.13% of their portfolio | 46.0k $1.6m | Added +1.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 44.0k $1.2m | Unchanged |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 42.8k $1.5m | Reduced -26.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 39.2k $1.3m | Reduced -8.4k |
| Front Street Capital Management, Inc. 0.15% of their portfolio | 38.4k $1.3m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 38.0k $1.3m | Reduced -280.0k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 37.2k $1.3m | Added +11.4k |
| MOODY NATIONAL BANK TRUST DIVISION 0.10% of their portfolio | 35.8k $1.2m | Added +16.9k |
| Jefferies Financial Group Inc. 0.01% of their portfolio | 35.5k $1.2m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 34.2k $1.2m | Added +5.6k |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 33.0k $1.1m | Added +711 |
| EntryPoint Capital, LLC 0.27% of their portfolio | 32.8k $1.1m | Reduced -9.4k |
| FMR LLC 0.00% of their portfolio | 32.6k $1.1m | Added +20.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 28.8k $980.9k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 28.6k $976.3k | Added +14.3k |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 28.3k $964.1k | Reduced -1.8k |
| Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio | 27.3k $932.6k | Added +12.8k |
| Pinnacle Financial Partners, Inc. 0.01% of their portfolio | 26.4k $901.7k | Reduced -139 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 25.5k $871.1k | Added +191 |
| GAMCO INVESTORS, INC. ET AL 0.01% of their portfolio | 25.5k $869.8k | Unchanged |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 25.5k $869.5k | Reduced -491 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 25.1k $858.0k | Unchanged |
| Tidal Investments LLC 0.00% of their portfolio | 23.7k $806.7k | Added +2.0k |
| Walleye Capital LLC 0.00% of their portfolio | 23.5k $802.3k | Added +6.9k |
| SummerHaven Investment Management, LLC 0.43% of their portfolio | 23.5k $800.8k | Unchanged |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 23.3k $793.5k | Reduced -773 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 23.2k $793.0k | Reduced -277.2k |
| Horizon Investments, LLC 0.01% of their portfolio | 23.1k $787.0k | New |
| Quantinno Capital Management LP 0.00% of their portfolio | 22.8k $778.6k | Added +2.9k |