Senator Investment Group LP
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1443689
New York, NY
Position in TMO
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$50,136,000
+$13,021,800 QoQ
Shares Held
100,000
+66.7% QoQ
Ownership
0.027%
of shares outstanding
% of Portfolio
1.83%
of 13F equity value
Holder Rank
#281
of 2,606 holders
Holding Since
Mar 2020
6 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026Senator Investment Group LP holds $123,889,137 across 3 Diagnostics & Research names. TMO ranks #2 (40.5% of the industry book) .
All Filings in TMO
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $50,136,000 | 100,000 | Shares | Sole | 2026-08-12 | |
| 2024-09-30 | $37,114,200 | 60,000 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $44,240,000 | 80,000 | Shares | Sole | 2024-08-20 | |
| 2024-03-31 | $49,402,850 | 85,000 | Shares | Sole | 2024-05-14 | |
| 2021-09-30 | $71,416,250 | 125,000 | Shares | Sole | 2021-11-12 | |
| 2020-03-31 | $82,244,000 | 290,000 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||