Position in MTD
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$73,217,704
-$44,414,280 QoQ
Shares Held
58,054
-31.2% QoQ
Ownership
0.287%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in MTD Over Time
Shares Held
Position Value (USD)
Derivatives in MTD
reported options exposure · as of Mar 31, 2026CallValue
$20,557,560
CallShares
16,300
PutValue
$7,567,200
PutShares
6,000
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 Mar 31, 2026CITADEL ADVISORS LLC holds $1,657,068,556 across 34 Diagnostics & Research names. MTD ranks #5 (4.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
864,489 | $424,922,277 | |
| 2 | CRL |
Charles River Laboratories International, Inc.
|
1,212,152 | $209,096,220 | |
| 3 | A |
Agilent Technologies, Inc.
|
1,801,714 | $205,359,361 | |
| 4 | DHR |
Danaher Corp /De/
|
1,026,347 | $194,595,390 | |
| 5 | MTD |
Mettler Toledo International Inc/
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|
58,054 | $73,217,704 | |
| 6 | GH |
Guardant Health, Inc.
|
775,941 | $71,673,669 | |
| 7 | DGX |
Quest Diagnostics Inc
|
347,218 | $68,047,783 | |
| 8 | IQV |
Iqvia Holdings Inc.
|
390,042 | $66,517,762 |
All Filings in MTD
Export CSV
40 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $7,567,200 | 6,000 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $73,217,704 | 58,054 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $20,557,560 | 16,300 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $34,157,652 | 24,500 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $11,850,614 | 8,500 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $117,631,984 | 84,373 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $39,283,520 | 32,000 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $66,256,565 | 53,972 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $10,802,968 | 8,800 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $13,626,752 | 11,600 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $29,250,528 | 24,900 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $3,424,639 | 2,900 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $26,452,384 | 22,400 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $73,224,686 | 62,007 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $11,747,328 | 9,600 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $11,930,880 | 9,750 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $3,426,304 | 2,800 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $163,467 | 109 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $13,647,270 | 9,100 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $4,949,010 | 3,300 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $1,622,601 | 1,161 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $2,236,144 | 1,600 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $3,773,493 | 2,700 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $4,338,674 | 3,259 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $39,349,634 | 32,441 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $14,459,204 | 13,049 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $3,062,679 | 2,335 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $25,179,605 | 16,455 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $48,945,827 | 33,862 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $95,924,020 | 88,481 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $88,235,874 | 76,809 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $6,474,590 | 4,715 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $86,966,736 | 51,241 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $47,521,674 | 34,502 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $152,762,826 | 110,271 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $71,571,875 | 61,930 | Shares | Defined | 2021-05-21 | |
| 2020-12-31 | $31,152,015 | 27,334 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $13,154,480 | 13,621 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $19,179,339 | 23,809 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $72,591,935 | 105,128 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||