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TMO
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Position history for PARNASSUS INVESTMENTS, LLC's holdings in THERMO FISHER SCIENTIFIC INC

PARNASSUS INVESTMENTS, LLC holds 1.5M shares of TMO (THERMO FISHER SCIENTIFIC INC), worth $739.6M as of 2026-Q1. The position was decreased (-5.0% shares). TMO represents 2.2% of PARNASSUS INVESTMENTS, LLC's portfolio.

Current Value

$739.6M

Current Shares

1.5M

Total Value Change

+$96.1M

Total Shares Change

+340,944

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Decreased
1.5M
-5.0%
$739.6M2.2%$508.10
0
2025-Q4
Decreased
1.6M
-24.4%
$917.3M2.4%$583.45
0
2025-Q3
Decreased
2.1M
-3.3%
$1B2.3%$461.69
0
2025-Q2
Increased
2.2M
+52.4%
$877.9M2.0%$407.61
76
2025-Q1
Increased
1.4M
+0.7%
$706.8M1.7%$498.82
50
2024-Q4
Increased
1.4M
+25.1%
$734M1.6%$517.01
61
2024-Q3
Decreased
1.1M
-3.1%
$697.7M1.5%$611.80
0
2024-Q2
Decreased
1.2M
-15.2%
$643.5M1.4%$550.29
0

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

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