Shafer Michael D
Officer · TMO
As of 2026-09-16, Shafer Michael D has 34 Form 4 transactions on record across 1 company — 23 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $13.1M
- Indirect $0
| TMO | direct | 20,204 sh | $13.1M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-11 | TMO | Sale | 14,300 @ $600.00 | $8.6M | −40.5% of holding | 20,994 | Form 4 |
| 2026-08-11 | TMO | Sale | 11,200 @ $600.00 | $6.7M | −34.8% of holding | 20,994 | Form 4 |
| 2026-03-11 | TMO | Sale | 1,607 @ $499.40 | $803K | −7.1% of holding | 20,950 | Form 4 |
| 2025-11-25 | TMO | Sale | 8,475 @ $600.00 | $5.1M | −31.2% of holding | 18,731 | Form 4 |
| 2025-11-25 | TMO | Sale | 2,250 @ $600.00 | $1.4M | −10.7% of holding | 18,731 | Form 4 |
| 2025-03-03 | TMO | Sale | 1,780 @ $530.92 | $945K | −8.5% of holding | 19,279 | Form 4 |
28 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-28 | TMO | Withheld for tax | 227 | 20,204 | Form 4 |
| 2026-08-28 | TMO | Withheld for tax | 211 | 20,621 | Form 4 |
| 2026-08-28 | TMO | Withheld for tax | 190 | 20,431 | Form 4 |
| 2026-08-28 | TMO | Withheld for tax | 162 | 20,832 | Form 4 |
| 2026-08-11 | TMO | Option exercise | 14,300 | 35,294 | Form 4 |
| 2026-08-11 | TMO | Option exercise | 11,200 | 32,194 | Form 4 |
| 2026-08-11 | TMO | Option exercise | 14,300 | 0 | Form 4 |
| 2026-08-11 | TMO | Option exercise | 11,200 | 0 | Form 4 |
| 2026-02-28 | TMO | Withheld for tax | 466 | 22,809 | Form 4 |
| 2026-02-28 | TMO | Withheld for tax | 252 | 22,557 | Form 4 |
| 2026-02-28 | TMO | Withheld for tax | 98 | 23,275 | Form 4 |
| 2026-02-25 | TMO | Award / grant | 1,569 | 20,244 | Form 4 |
| 2026-02-25 | TMO | Award / grant | 3,129 | 23,373 | Form 4 |
| 2026-02-25 | TMO | Award / grant | 13,698 | 13,698 | Form 4 |
| 2025-11-25 | TMO | Option exercise | 8,475 | 27,206 | Form 4 |
| 2025-11-25 | TMO | Option exercise | 2,250 | 20,981 | Form 4 |
| 2025-11-25 | TMO | Option exercise | 8,475 | 0 | Form 4 |
| 2025-11-25 | TMO | Option exercise | 2,250 | 0 | Form 4 |
| 2025-08-28 | TMO | Withheld for tax | 176 | 18,845 | Form 4 |
| 2025-08-28 | TMO | Withheld for tax | 162 | 19,021 | Form 4 |
| 2025-08-28 | TMO | Withheld for tax | 145 | 19,184 | Form 4 |
| 2025-08-28 | TMO | Withheld for tax | 114 | 18,731 | Form 4 |
| 2025-02-28 | TMO | Withheld for tax | 636 | 21,059 | Form 4 |
| 2025-02-28 | TMO | Withheld for tax | 245 | 21,805 | Form 4 |
| 2025-02-28 | TMO | Withheld for tax | 110 | 21,695 | Form 4 |
| 2025-02-19 | TMO | Award / grant | 1,568 | 17,651 | Form 4 |
| 2025-02-19 | TMO | Award / grant | 4,747 | 22,398 | Form 4 |
| 2025-02-19 | TMO | Award / grant | 9,610 | 9,610 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.