GAMCO INVESTORS, INC. ET AL
Position in TMO — Thermo Fisher Scientific Inc.
CIK 807249
GREENWICH, CT
Position in TMO
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$2,228,105
-$464,019 QoQ
Shares Held
4,533
-2.4% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026GAMCO INVESTORS, INC. ET AL holds $7,314,895 across 6 Diagnostics & Research names. TMO ranks #2 (30.5% of the industry book) .
All Filings in TMO
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,228,105 | 4,533 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $2,692,124 | 4,646 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $2,491,062 | 5,136 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $2,143,261 | 5,286 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $1,947,606 | 3,914 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $2,146,468 | 4,126 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $2,645,623 | 4,277 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $2,369,605 | 4,285 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $2,392,260 | 4,116 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $2,136,960 | 4,026 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,886,442 | 13,605 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $9,288,193 | 17,802 | Shares | Sole | 2023-08-15 | |
| 2023-03-31 | $9,373,505 | 16,263 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $11,931,800 | 21,667 | Shares | Sole | 2023-02-15 | |
| 2022-09-30 | $12,809,590 | 25,256 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $13,393,481 | 24,653 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $14,716,044 | 24,915 | Shares | Sole | 2022-05-18 | |
| 2021-12-31 | $24,457,014 | 36,654 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $20,203,942 | 35,363 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $21,626,628 | 42,870 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $19,364,659 | 42,431 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $21,455,224 | 46,063 | Shares | Sole | 2021-02-05 | |
| 2020-09-30 | $23,699,469 | 53,677 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $18,643,117 | 51,452 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $15,296,533 | 53,937 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||