PICTON MAHONEY ASSET MANAGEMENT
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1539041
Toronto, A6
Position in TMO
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$21,894,220
-$4,446,997 QoQ
Shares Held
44,543
-2.0% QoQ
Ownership
0.012%
of shares outstanding
% of Portfolio
0.24%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
7 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, 2026PICTON MAHONEY ASSET MANAGEMENT holds $102,222,185 across 14 Diagnostics & Research names. TMO ranks #2 (21.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GH |
Guardant Health, Inc.
|
249,991 | $23,091,668 | |
| 2 | TMO |
Thermo Fisher Scientific Inc.
This page
|
44,543 | $21,894,220 | |
| 3 | NTRA |
Natera, Inc.
|
90,161 | $18,031,298 | |
| 4 | RDNT |
RadNet, Inc.
|
309,120 | $17,276,716 | |
| 5 | CRL |
Charles River Laboratories International, Inc.
|
95,396 | $16,455,810 | |
| 6 | MEDP |
Medpace Holdings, Inc.
|
5,092 | $2,445,127 | |
| 7 | DGX |
Quest Diagnostics Inc
|
8,030 | $1,573,719 | |
| 8 | A |
Agilent Technologies, Inc.
|
9,297 | $1,059,672 |
All Filings in TMO
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $21,894,220 | 44,543 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $26,341,217 | 45,459 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $17,013,046 | 35,077 | Shares | Sole | 2025-11-12 | |
| 2020-12-31 | $26,355,229 | 56,583 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $24,619,155 | 55,760 | Shares | Sole | 2020-11-02 | |
| 2020-06-30 | $23,405,352 | 64,595 | Shares | Sole | 2020-08-05 | |
| 2020-03-31 | $17,603,052 | 62,070 | Shares | Sole | 2020-05-06 | |
| No filing history on record for this holder in this stock. | ||||||