Balyasny Asset Management L.P.
Position in TMO — Thermo Fisher Scientific Inc.
CIK 1218710
Chicago, IL
Position in TMO
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$225,425,494
-$47,606,149 QoQ
Shares Held
449,628
-19.1% QoQ
Ownership
0.122%
of shares outstanding
% of Portfolio
0.45%
of 13F equity value
Holder Rank
#111
of 2,617 holders
Holding Since
Mar 2020
25 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
$17,096,376
CallShares
34,100
PutValue
$3,509,520
PutShares
7,000
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, 2026Balyasny Asset Management L.P. holds $727,870,777 across 19 Diagnostics & Research names. TMO ranks #1 (31.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
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|
449,628 | $225,425,494 | |
| 2 | DHR |
Danaher Corp /De/
|
759,207 | $144,613,749 | |
| 3 | IQV |
Iqvia Holdings Inc.
|
700,425 | $135,336,117 | |
| 4 | MTD |
Mettler Toledo International Inc/
|
54,686 | $69,861,911 | |
| 5 | DGX |
Quest Diagnostics Inc
|
275,371 | $58,364,883 | |
| 6 | WAT |
Waters Corp /De/
|
138,443 | $51,921,662 | |
| 7 | GH |
Guardant Health, Inc.
|
124,368 | $18,658,930 | |
| 8 | RVTY |
Revvity, Inc.
|
63,056 | $7,015,610 |
All Filings in TMO
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50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $225,425,494 | 449,628 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $17,096,376 | 34,100 | Call | Sole | 2026-08-14 | |
| 2026-06-30 | $3,509,520 | 7,000 | Put | Sole | 2026-08-14 | |
| 2026-03-31 | $5,652,595 | 11,500 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $273,031,643 | 555,473 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $1,867,814 | 3,800 | Put | Sole | 2026-05-15 | |
| 2025-12-31 | $15,529,260 | 26,800 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $3,476,700 | 6,000 | Call | Sole | 2026-02-17 | |
| 2025-12-31 | $4,927,642 | 8,504 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $2,376,598 | 4,900 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $4,074,168 | 8,400 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $98,978,056 | 244,113 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $851,466 | 2,100 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $13,015,266 | 32,100 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $16,437,718 | 33,034 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $22,939,360 | 46,100 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $18,809,280 | 37,800 | Call | Sole | 2025-05-15 | |
| 2024-12-31 | $6,658,944 | 12,800 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $2,549,127 | 4,900 | Call | Sole | 2025-02-14 | |
| 2024-12-31 | $5,388,542 | 10,358 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,298,997 | 2,100 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $2,721,708 | 4,400 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $16,059,932 | 25,963 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,161,300 | 2,100 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $71,762,810 | 129,770 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $3,483,900 | 6,300 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $19,957,007 | 34,337 | Shares | Sole | 2024-05-13 | |
| 2024-03-31 | $523,089 | 900 | Put | Sole | 2024-05-13 | |
| 2023-12-31 | $1,114,659 | 2,100 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $134,280,846 | 252,983 | Shares | Other | 2024-02-14 | |
| 2023-12-31 | $1,645,449 | 3,100 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $70,129,346 | 138,549 | Shares | Other | 2023-11-14 | |
| 2023-09-30 | $658,021 | 1,300 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $253,085 | 500 | Put | Sole | 2023-11-14 | |
| 2023-06-30 | $2,519,009 | 4,828 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $6,782,750 | 13,000 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $3,243,233 | 5,627 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $23,125,675 | 41,994 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,359,298 | 8,595 | Shares | Sole | 2022-11-15 | |
| 2022-06-30 | $54,968,527 | 101,179 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $8,269,100 | 14,000 | Put | Sole | 2022-05-16 | |
| 2021-12-31 | $82,268,690 | 123,297 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $63,098,827 | 110,442 | Shares | Sole | 2021-12-01 | |
| 2021-06-30 | $76,541,215 | 151,726 | Shares | Sole | 2021-08-16 | |
| 2021-06-30 | $756,705 | 1,500 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $857,599 | 1,700 | Put | Sole | 2021-08-16 | |
| 2021-03-31 | $18,837,997 | 41,277 | Shares | Sole | 2021-05-17 | |
| 2020-09-30 | $4,415,200 | 10,000 | Put | Sole | 2020-11-16 | |
| 2020-06-30 | $30,339,452 | 83,732 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $8,508,000 | 30,000 | Put | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||