RENAISSANCE TECHNOLOGIES LLC
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1037389
NEW YORK, NY
Position in TMO
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$68,304,974
-$117,780,893 QoQ
Shares Held
138,964
-69.7% QoQ
Ownership
0.037%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
13 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, 2026RENAISSANCE TECHNOLOGIES LLC holds $772,811,905 across 28 Diagnostics & Research names. TMO ranks #4 (8.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MEDP |
Medpace Holdings, Inc.
|
504,668 | $242,336,526 | |
| 2 | DHR |
Danaher Corp /De/
|
678,808 | $128,701,996 | |
| 3 | ILMN |
Illumina, Inc.
|
972,642 | $119,887,852 | |
| 4 | TMO |
Thermo Fisher Scientific Inc.
This page
|
138,964 | $68,304,974 | |
| 5 | NTRA |
Natera, Inc.
|
197,500 | $39,498,025 | |
| 6 | A |
Agilent Technologies, Inc.
|
300,300 | $34,228,194 | |
| 7 | GH |
Guardant Health, Inc.
|
337,600 | $31,184,112 | |
| 8 | IDXX |
Idexx Laboratories Inc /De
|
48,504 | $27,253,912 |
All Filings in TMO
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $68,304,974 | 138,964 | Shares | Sole | 2026-05-14 | |
| 2025-06-30 | $186,085,867 | 458,950 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $77,249,414 | 155,244 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $94,340,589 | 181,344 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $30,279,620 | 48,951 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $130,424,497 | 235,849 | Shares | Sole | 2024-08-09 | |
| 2023-06-30 | $171,418,875 | 328,546 | Shares | Sole | 2023-08-11 | |
| 2022-03-31 | $18,841,735 | 31,900 | Shares | Sole | 2022-05-13 | |
| 2021-06-30 | $30,946,207 | 61,344 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $147,202,630 | 322,544 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $32,997,718 | 70,844 | Shares | Sole | 2021-02-10 | |
| 2020-06-30 | $69,539,205 | 191,917 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $35,851,861 | 126,417 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||