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Rafferty Asset Management, LLC

Position in TMO — Thermo Fisher Scientific Inc.

CIK 1389426 New York, NY

Position in TMO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$20,508,130
+$6,239,998 QoQ
Shares Held
40,905
+40.9% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#472
of 2,619 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TMO Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

Rafferty Asset Management, LLC holds $85,587,160 across 17 Diagnostics & Research names. TMO ranks #1 (24.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TMO
Thermo Fisher Scientific Inc.
This page
40,905 $20,508,130

All Filings in TMO

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $20,508,130 40,905
2026-03-31 $14,268,132 29,028
2025-12-31 $23,438,752 40,450
2025-09-30 $20,334,948 41,926
2025-06-30 $16,176,232 39,896
2025-03-31 $17,623,001 35,416
2024-12-31 $22,568,097 43,381
2024-09-30 $23,966,494 38,745
2024-06-30 $22,957,242 41,514
2024-03-31 $23,175,748 39,875
2023-12-31 $20,878,624 39,335
2023-09-30 $20,382,959 40,269
2023-06-30 $19,474,318 37,325
2023-03-31 $20,227,705 35,095
2022-12-31 $18,629,842 33,830
2022-09-30 $10,672,291 21,042
2022-06-30 $5,201,362 9,574
2022-03-31 $7,163,993 12,129
2021-12-31 $8,900,981 13,340
2021-09-30 $7,166,192 12,543
2021-06-30 $4,139,680 8,206
2021-03-31 $3,441,105 7,540
2020-12-31 $3,093,244 6,641
2020-09-30 $3,163,490 7,165
2020-06-30 $3,227,724 8,908
2020-03-31 $874,906 3,085