Michael C Kaufmann
CIK 1471294 · CEO · last filed 2026-01-26
Michael C Kaufmann is a CEO who has filed 102 SEC Form 4 insider transactions across 2 companies since 2009. The most recent filing, for MSM, was dated Jan 26, 2026. Across all open-market trades the lifetime net is −$41.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $152.9M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$152.85M
2
102
-$41.86M
Holdings By Company
Recent Filings
102 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-26 | MSM | Mixed | +745 | $0 | EDGAR |
| 2026-01-23 | MSM | Exer (M) | +823 | $0 | EDGAR |
| 2025-01-28 | MSM | Exer (M) | +1,542 | $0 | EDGAR |
| 2025-01-23 | MSM | Grant (A) | — | $0 | EDGAR |
| 2024-01-29 | MSM | Exer (M) | +1,620 | $0 | EDGAR |
| 2024-01-25 | MSM | Grant (A) | — | $0 | EDGAR |
| 2023-01-31 | MSM | Exer (M) | +804 | $0 | EDGAR |
| 2023-01-27 | MSM | Mixed | +789 | $0 | EDGAR |
| 2022-08-17 | CAH | Mixed | −71,923 | -$7.83M | EDGAR |
| 2022-08-11 | CAH | Grant (A) | +132,857 | $0 | EDGAR |