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TMO
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Position history for CITADEL ADVISORS LLC's holdings in THERMO FISHER SCIENTIFIC INC

CITADEL ADVISORS LLC holds 864,489 shares of TMO (THERMO FISHER SCIENTIFIC INC), worth $424.9M as of 2026-Q1. The position was increased (+25.2% shares). TMO represents 0.1% of CITADEL ADVISORS LLC's portfolio.

Current Value

$424.9M

Current Shares

864,489

Total Value Change

-$118.5M

Total Shares Change

-118,205

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Increased
864,489
+25.2%
$424.9M0.1%$508.10
38
2025-Q4
Increased
690,405
+97.4%
$400.1M0.1%$583.45
50
2025-Q3
Decreased
349,701
-68.1%
$169.6M0.0%$461.69
0
2025-Q2
Increased
1.1M
+809.7%
$444.7M0.1%$407.61
50
2025-Q1
Decreased
120,573
-64.5%
$60M0.0%$498.82
0
2024-Q4
Increased
339,940
+104.5%
$176.8M0.0%$517.01
49
2024-Q3
Decreased
166,186
-83.1%
$102.8M0.0%$611.80
0
2024-Q2
Increased
982,694
+876.1%
$543.4M0.1%$550.29
61

Other major holders of TMO: VANGUARD GROUP INC, BlackRock, Inc., BlackRock Finance, Inc.

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