MSC Industrial Direct Co., Inc. (MSM) ownership: Top institutional holder: BlackRock, Inc. ($501.27M). Insider activity: Net Seller (0 buys, 4 sells). 1 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 5432644.00 | $501.27M | 2026-03-31 |
| VANGUARD GROUP INC | 4218760.00 | $354.80M | 2025-12-31 |
| AMERICAN CENTURY COMPANIES INC | 2612963.00 | $241.10M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2132857.00 | $196.80M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2001945.00 | $184.72M | 2026-03-31 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1785596.00 | $164.76M | 2026-03-31 |
| FIRST TRUST ADVISORS LP | 1773133.00 | $163.61M | 2026-03-31 |
| BlackRock Fund Advisors | 1728577.00 | $159.70M | 2016-12-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-04-07 | |
| Sell | null | 2026-02-05 | |
| Sell | null | 2026-02-05 | |
| Sell | null | 2026-02-02 |
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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.