# THERMON GROUP HLDGS INC COM

THERMON GROUP HLDGS INC COM is a security (CUSIP 88362T103) tracked across SEC portfolio filings. 168 institutional managers reported $1.4B on Form 13F as of 2026-06-30; 22 registered fund positions totaling $56.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: THERMON GROUP HLDGS INC
- Class: COM
- CUSIP: 88362T103
- Asset category: EC
- 13F holders: 168
- 13F value: $1.4B
- 13F period: 2026-06-30
- N-PORT fund positions: 22
- N-PORT value: $56.5M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 168 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| FMR LLC | BOSTON, MA | $149.7M | 2,970,723 |
| BlackRock, Inc. | New York, NY | $130.4M | 2,588,149 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $114.1M | 3,069,937 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $87.2M | 1,730,100 |
| [Medina Value Partners, LLC](https://search.stillhousedata.com/firm/155192) | Los Angeles, CA | $48.7M | 966,319 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $42.0M | 832,516 |
| WESTWOOD HOLDINGS GROUP INC | DALLAS, TX | $39.5M | 782,763 |
| STATE STREET CORP | BOSTON, MA | $38.9M | 772,529 |
| Magnetar Financial LLC | Evanston, IL | $38.2M | 757,996 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $34.3M | 679,685 |
| [WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC](https://search.stillhousedata.com/firm/173961) | CHICAGO, IL | $32.6M | 647,539 |
| [Harvey Partners, LLC](https://search.stillhousedata.com/firm/160681) | Tarrytown, NY | $32.6M | 646,728 |
| [NEEDHAM INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/106783) | NEW YORK, NY | $31.9M | 632,500 |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | AMSTERDAM, P7 | $26.0M | 516,471 |
| [Qube Research & Technologies Ltd](https://search.stillhousedata.com/firm/304552) | LONDON, X0 | $25.7M | 508,956 |

## Top fund holders (N-PORT)

_Showing 15 of 22 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $18.5M | 2.26% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $10.2M | 5.81% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $7.8M | 10.40% |
| [Oberweis Micro-Cap Fund](https://search.stillhousedata.com/fund/S000010231) | OBERWEIS FUNDS | $7.5M | 71.17% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $2.7M | 5.56% |
| [NYLI Merger Arbitrage ETF](https://search.stillhousedata.com/fund/S000025931) | New York Life Investments ETF Trust | $2.6M | 103.75% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.2M | 12.36% |
| [WALTHAUSEN SMALL CAP VALUE FUND](https://search.stillhousedata.com/fund/S000020728) | Walthausen Funds | $1.2M | 283.41% |
| [Small Cap Core Portfolio](https://search.stillhousedata.com/fund/S000051867) | Bernstein Fund Inc | $1.2M | 16.20% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $908K | 0.15% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $745K | 0.25% |
| [Russell Investments U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000089990) | Russell Investments Exchange Traded Funds | $632K | 127.95% |
| [CORNERCAP SMALL-CAP VALUE FUND](https://search.stillhousedata.com/fund/S000004377) | CORNERCAP GROUP OF FUNDS | $509K | 42.28% |
| [AB All Market Total Return Portfolio](https://search.stillhousedata.com/fund/S000010512) | AB PORTFOLIOS | $387K | 8.93% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $231K | 5.51% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/88362t103.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.