Old West Investment Management, LLC
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1549358
Los Angeles, CA
Position in TMO
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$5,055,212
+$3,930,592 QoQ
Shares Held
10,083
+340.7% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.57%
of 13F equity value
Holder Rank
#845
of 2,605 holders
Holding Since
Sep 2025
4 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, 2026Old West Investment Management, LLC holds $27,526,989 across 2 Diagnostics & Research names. TMO ranks #2 (18.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ILMN |
Illumina, Inc.
|
127,804 | $22,471,777 | |
| 2 | TMO |
Thermo Fisher Scientific Inc.
This page
|
10,083 | $5,055,212 |
All Filings in TMO
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,055,212 | 10,083 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $1,124,620 | 2,288 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $1,263,201 | 2,180 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,057,343 | 2,180 | Shares | Sole | 2025-11-05 | |
| No filing history on record for this holder in this stock. | ||||||