MSM insider buying and SEC filings, explained
MSC Industrial Direct Co. Inc. · CIK 1003078
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$47.0M
Insiders who bought
3
Sold (not marked 10b5-1)
$156K
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 23, 2026 | Purchase (code P) | Mitchell Jacobson (Director and 10% owner) bought 250,000 shares at about $115.94 ($29.0M), reported as a purchase (code P). Holdings up 11% to 2,578,192 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 27, 2026, 5:21 PM ET |
| Oct 23, 2026 | Purchase (code P) | Reuben E Slone (Director) bought 433 shares at about $115.77 ($50K), reported as a purchase (code P). New position of 433 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 23, 2026, 4:17 PM ET |
| Feb 2, 2026 | Sale | Rudina Seseri (Director) sold 1,800 shares at $86.83 ($156K). Holdings down 23% to 6,090 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 2, 2026 |
| Nov 18, 2025 | Purchase (code P) | Mitchell Jacobson (Director and 10% owner) bought 22,870 shares at about $84.96 ($1.9M), reported as a purchase (code P). Holdings up 1% to 2,328,192 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
| Nov 13, 2025 | Purchase (code P) | Philip Peller (Director) bought 6,666 shares at $90.14 ($601K), reported as a purchase (code P). Holdings up 232% to 9,537 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 17, 2025 |
| Oct 30–Nov 3, 2025 | Purchase (code P) | Mitchell Jacobson (Director and 10% owner) bought 181,806 shares between Oct 30, 2025 and Nov 3, 2025 at about $84.75 ($15.4M), reported as a purchase (code P). Holdings up 9% to 2,305,322 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2025 |
41 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$29.0M in purchases since Oct 23, 2026 · Purchases traded Oct 23, 2026 to Oct 23, 2026 · Active
| Insider | Value | Traded | Source |
|---|---|---|---|
| Reuben E Slone (Director) | $50K | Oct 23, 2026 | SEC filing |
| Mitchell Jacobson (Director) | $29.0M | Oct 23, 2026 | SEC filing |
2 insiders bought in 30 days
$18.0M in purchases since Nov 3, 2025 · Purchases traded Nov 3, 2025 to Nov 18, 2025 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Mitchell Jacobson (Director) | $15.4M | Nov 3, 2025 | SEC filing |
| Philip Peller (Director) | $601K | Nov 13, 2025 | SEC filing |
| Mitchell Jacobson (Director) | $1.9M | Nov 18, 2025 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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