Matrix Service Company (MTRX) ownership: Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, NY 10117-1099 9% · institutions 89% (13F 2026-03-31). Insider activity, 90 days: 3 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| BlackRock | 2014217.00 | $23.12M | 7.2% | 2026-03-31 |
| Vanguard | 1577906.00 | $18.11M | 5.6% | 2026-03-31 |
| Needham Investment Management LLC | 1435000.00 | $16.47M | 5.1% | 2026-03-31 |
| Gendell Jeffrey L | 1231307.00 | $14.14M | 4.4% | 2026-03-31 |
| American Century | 981639.00 | $11.27M | 3.5% | 2026-03-31 |
| Westerly Capital Management, LLC | 965000.00 | $11.08M | 3.4% | 2026-03-31 |
| Harvey Partners, LLC | 905000.00 | $10.39M | 3.2% | 2026-03-31 |
| First Eagle | 850809.00 | $9.77M | 3.0% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.