One River Asset Management, LLC
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1616336
STAMFORD, CT
Position in TMO
as of Jun 30, 2026
· filed Jul 28, 2026
Position Value
$155,421
-$172,921 QoQ
Shares Held
310
-53.6% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.80%
of 13F equity value
Holder Rank
#2,324
of 2,606 holders
Holding Since
Sep 2024
5 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Derivatives in TMO
reported options exposure · as of Jun 30, 2026CallValue
$902,448
CallShares
1,800
PutValue
$752,040
PutShares
1,500
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026One River Asset Management, LLC holds $155,421 across 1 Diagnostics & Research name. TMO ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
310 | $155,421 |
All Filings in TMO
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $155,421 | 310 | Shares | Sole | 2026-07-28 | |
| 2026-06-30 | $902,448 | 1,800 | Call | Sole | 2026-07-28 | |
| 2026-06-30 | $752,040 | 1,500 | Put | Sole | 2026-07-28 | |
| 2026-03-31 | $884,754 | 1,800 | Put | Sole | 2026-04-27 | |
| 2026-03-31 | $328,342 | 668 | Shares | Sole | 2026-04-27 | |
| 2026-03-31 | $884,754 | 1,800 | Call | Sole | 2026-04-27 | |
| 2025-12-31 | $1,043,010 | 1,800 | Call | Sole | 2026-01-28 | |
| 2025-12-31 | $1,043,010 | 1,800 | Put | Sole | 2026-01-28 | |
| 2025-09-30 | $873,036 | 1,800 | Put | Sole | 2025-11-10 | |
| 2025-09-30 | $873,036 | 1,800 | Call | Sole | 2025-11-10 | |
| 2024-09-30 | $371,142 | 600 | Call | Sole | 2024-11-08 | |
| 2024-09-30 | $185,571 | 300 | Put | Sole | 2024-11-08 | |
| No filing history on record for this holder in this stock. | ||||||