# MATRIX SVC CO COM

MATRIX SVC CO COM is a security (CUSIP 576853105) tracked across SEC portfolio filings. 147 institutional managers reported $274.0M on Form 13F as of 2026-06-30; 13 registered fund positions totaling $12.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MATRIX SVC CO
- Class: COM
- CUSIP: 576853105
- Asset category: EC
- 13F holders: 147
- 13F value: $274.0M
- 13F period: 2026-06-30
- N-PORT fund positions: 13
- N-PORT value: $12.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 147 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $23.1M | 2,014,217 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $17.9M | 1,526,777 |
| [NEEDHAM INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/106783) | NEW YORK, NY | $16.5M | 1,435,000 |
| GENDELL JEFFREY L | GREENWICH, CT | $14.1M | 1,231,307 |
| [First Eagle Investment Management, LLC](https://search.stillhousedata.com/firm/108260) | NEW YORK, NY | $13.6M | 990,217 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $11.3M | 981,639 |
| [WESTERLY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/140089) | SAN FRANCISCO, CA | $11.1M | 965,000 |
| [Harvey Partners, LLC](https://search.stillhousedata.com/firm/160681) | Tarrytown, NY | $10.4M | 905,000 |
| Azarias Capital Management, L.P. | BERWYN, PA | $9.2M | 673,692 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $7.9M | 685,373 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $7.6M | 663,939 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $7.3M | 637,691 |
| Bank of New York Mellon Corp | NEW YORK, NY | $6.3M | 457,365 |
| STATE STREET CORP | BOSTON, MA | $6.3M | 545,485 |
| [FIRST WILSHIRE SECURITIES MANAGEMENT INC](https://search.stillhousedata.com/firm/171971) | PASADENA, CA | $6.0M | 522,838 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $3.7M | 0.46% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.8M | 1.04% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $1.7M | 11.97% |
| [Small Cap Portfolio](https://search.stillhousedata.com/fund/S000001917) | BNY MELLON VARIABLE INVESTMENT FUND | $1.5M | 46.88% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $1.3M | 1.77% |
| [Small Cap Core Portfolio](https://search.stillhousedata.com/fund/S000051867) | Bernstein Fund Inc | $1.2M | 16.48% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $512K | 1.06% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $458K | 4.65% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $194K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $176K | 0.06% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $43K | 1.02% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $16K | 0.04% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $16K | 0.12% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/576853105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.