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Equibles

PARNASSUS INVESTMENTS, LLC

Position in TMO — Thermo Fisher Scientific Inc.

CIK 948669 San Francisco, CA
Back to TMO Full portfolio

Position in TMO

as of Jun 30, 2026 · filed Jul 29, 2026
Position Value
$822,024,341
+$82,443,235 QoQ
Shares Held
1,639,589
+9.0% QoQ
Ownership
0.443%
of shares outstanding
% of Portfolio
2.20%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2022
18 quarters on record
Voting authority Sole 96% Shared 0% None 4%

Common Shares in TMO Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

PARNASSUS INVESTMENTS, LLC holds $1,639,056,087 across 5 Diagnostics & Research names. TMO ranks #1 (50.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TMO
Thermo Fisher Scientific Inc.
This page 		1,639,589 $822,024,341
2 DHR
Danaher Corp /De/
 3,674,207 $699,862,949
3 A
Agilent Technologies, Inc.
 607,098 $80,640,827
4 NTRA
Natera, Inc.
 77,576 $21,058,005
5 IDXX
Idexx Laboratories Inc /De
 29,386 $15,469,965

All Filings in TMO

Export CSV
18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $822,024,341 1,639,589
2026-03-31 $739,581,106 1,504,651
2025-12-31 $917,330,192 1,583,105
2025-09-30 $1,015,448,057 2,093,621
2025-06-30 $877,925,508 2,165,258
2025-03-31 $706,806,465 1,420,431
2024-12-31 $734,022,160 1,410,957
2024-09-30 $697,666,545 1,127,870
2024-06-30 $643,529,971 1,163,707
2024-03-31 $797,561,354 1,372,243
2023-12-31 $735,825,684 1,386,284
2023-09-30 $629,132,865 1,242,928
2023-06-30 $660,807,853 1,266,522
2023-03-31 $724,116,109 1,256,339
2022-12-31 $618,048,748 1,122,317
2022-09-30 $570,626,789 1,125,075
2022-06-30 $522,771,180 962,250
2022-03-31 $552,948,219 936,169