MSC Industrial Direct Co Inc (MSM) insider trading
Every open-market stock purchase and sale by MSC Industrial Direct Co Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Mitchell Jacobson (10%+ shareholder) and 1 other bought $29M in the last 90 days, growing their stake 6%.
Last 12 months: insiders bought $36M (5 buys) and sold $156K (1 sale). Last close $121.02 on Oct 30, 2026.
Recent MSM insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 23, 2026 | Mitchell Jacobson (10% owner) | Bought | $15.6M |
| Oct 23, 2026 | Mitchell Jacobson (10% owner) | Bought | $7M |
| Oct 23, 2026 | Mitchell Jacobson (10% owner) | Bought | $6.3M |
| Oct 23, 2026 | Reuben E Slone (Director) | Bought | $42.8K |
| Oct 23, 2026 | Reuben E Slone (Director) | Bought | $7.3K |
| Oct 23, 2026 | Mitchell Jacobson (10% owner) | Sold (not open market) | — |
| Oct 3, 2026 | Martina McIsaac (CEO) | Sold (not open market) | $62.6K |
| Oct 3, 2026 | Martina McIsaac (CEO) | Bought (not open market) | — |
| Oct 3, 2026 | Martina McIsaac (CEO) | Bought (not open market) | — |
| Sep 14, 2026 | Robert M Kuhns (CFO) | Bought (not open market) | — |
| Jul 20, 2026 | Walter Siegel (VP) | Bought (not open market) | — |
| Apr 7, 2026 | Mitchell Jacobson (10% owner) | Sold (not open market) | — |
| Feb 5, 2026 | Steven Paladino (Director) | Bought (not open market) | — |
| Feb 2, 2026 | Rudina Seseri (Director) | Sold | $156K |
| Jan 27, 2026 | Erik Gershwind (Director) | Bought (not open market) | — |
| Jan 27, 2026 | Erik Gershwind (Director) | Sold (not open market) | — |
| Jan 27, 2026 | Erik Gershwind (Director) | Bought (not open market) | — |
| Jan 27, 2026 | Erik Gershwind (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Rahquel Purcell (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Michael C Kaufmann (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Rudina Seseri (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Steven Paladino (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Steven Paladino (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Rudina Seseri (Director) | Bought (not open market) | — |
| Jan 24, 2026 | Michael C Kaufmann (Director) | Bought (not open market) | — |
Who's trading MSM
- Mitchell Jacobson, 10% owner: bought $35.3M (6 buys), last Oct 23, 2026
- Reuben E Slone, Director: bought $50.1K (2 buys), last Oct 23, 2026
- Martina McIsaac, COO: other filings, last Oct 3, 2026
- Robert M Kuhns, CFO: other filings, last Sep 14, 2026
- Walter Siegel, VP: other filings, last Jul 20, 2026
- Steven Paladino, Director: other filings, last Feb 5, 2026
- Rudina Seseri, Director: sold $156K (1 sale), last Feb 2, 2026
- Erik Gershwind, CEO: other filings, last Jan 27, 2026
- Rahquel Purcell, Director: other filings, last Jan 24, 2026
- Michael C Kaufmann, Director: other filings, last Jan 24, 2026
- Louise K Goeser, Director: other filings, last Jan 23, 2026
- Robert B Aarnes, Director: other filings, last Jan 23, 2026
- Philip Peller, Director: bought $601K (1 buy), last Jan 23, 2026
- Julie Valsa Rockett, C-suite exec: other filings, last Dec 17, 2025
- Gregory Haefele Clark, CFO: other filings, last Nov 5, 2025
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