Marc N Casper
CIK 1216055 · Chairman & CEO · last filed 2026-09-01
Marc N Casper is a Chairman & CEO who has filed 296 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $781.8K of TMO on Sep 1, 2026. Across all open-market trades the lifetime net is −$806.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $86.9M across reported positions. 26 SEC filings were submitted jointly with ZIMMER BIOMET HOLDINGS, INC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
TMO price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
168 THIRD AVENUE
WALTHAM, MA 02451
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TMO | Chairman & CEO | 127,668 | $673.82 | $86.03M | -$806.89M | 194 | 2026-09-01 |
| SNPS | Director | 2,097 | $430.14 | $902.0K | $439.1K | 5 | 2024-04-12 |
| USB | Director | — | $59.58 | — | $0 | 8 | 2020-12-23 |
| ZBH | Director | — | $98.56 | — | $0 | 25 | 2013-04-02 |
| ADVISORY BOARD CO (ABCO) Delisted | Director | — | — | — | $0 | 3 | 2009-04-21 |
Recent Filings
296 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-01 | TMO | Tax (F) | −1,256 | -$781.8K | EDGAR |
| 2026-08-26 | TMO | Mixed | — | -$87.3K | EDGAR |
| 2026-08-24 | TMO | Notice (144) | −275 | -$172.4K | EDGAR |
| 2026-08-24 | TMO | Mixed | — | -$6.37M | EDGAR |
| 2026-08-21 | TMO | Notice (144) | −10,000 | -$6.27M | EDGAR |
| 2026-08-20 | TMO | Notice (144) | −10,000 | -$6.29M | EDGAR |
| 2026-08-10 | TMO | Mixed | −4,608 | -$2.78M | EDGAR |
| 2026-08-07 | TMO | Notice (144) | −4,883 | -$2.82M | EDGAR |
| 2026-08-07 | TMO | Mixed | −5,000 | -$5.52M | EDGAR |
| 2026-08-07 | TMO | Mixed | −5,000 | -$5.52M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.