Position in TDY
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$13,325,328
+$3,279,138 QoQ
Shares Held
19,981
+20.3% QoQ
Ownership
0.043%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#161
of 875 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TDY Over Time
Shares Held
Position Value (USD)
Derivatives in TDY
reported options exposure · as of Jun 30, 2026CallValue
$11,870,820
CallShares
17,800
PutValue
$1,333,800
PutShares
2,000
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 Scientific & Technical Instruments
Technology · as of Jun 30, 2026CITADEL ADVISORS LLC holds $770,658,471 across 26 Scientific & Technical Instruments names. TDY ranks #7 (1.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MKSI |
Mks Inc
|
697,670 | $310,323,615 | |
| 2 | KEYS |
Keysight Technologies, Inc.
|
555,953 | $194,622,466 | |
| 3 | GRMN |
Garmin Ltd
|
281,919 | $66,967,039 | |
| 4 | COHR |
Coherent Corp.
|
161,095 | $63,547,144 | |
| 5 | NOVT |
Novanta Inc
|
481,821 | $62,039,303 | |
| 6 | VNT |
Vontier Corp
|
674,348 | $19,556,092 | |
| 7 | TDY |
Teledyne Technologies Inc
This page
|
19,981 | $13,325,328 | |
| 8 | ITRI |
Itron, Inc.
|
121,080 | $10,477,051 |
All Filings in TDY
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $11,870,820 | 17,800 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $1,333,800 | 2,000 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $13,325,328 | 19,981 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $10,046,190 | 16,605 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $1,754,529 | 2,900 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $7,381,122 | 12,200 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $9,131,341 | 17,879 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $1,021,460 | 2,000 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $2,247,212 | 4,400 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $2,402,764 | 4,100 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $3,399,032 | 5,800 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $5,678,726 | 9,690 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $53,427,272 | 104,287 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $1,178,313 | 2,300 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $5,840,334 | 11,400 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $3,782,596 | 7,600 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $597,252 | 1,200 | Put | Defined | 2025-05-15 | |
| 2024-12-31 | $3,341,736 | 7,200 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $610,795 | 1,316 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $464,130 | 1,000 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $3,326,216 | 7,600 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $1,619,342 | 3,700 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $46,391 | 106 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $1,590,718 | 4,100 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $1,939,900 | 5,000 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $161,787 | 417 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $2,604,684 | 6,067 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $601,048 | 1,400 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $3,434,560 | 8,000 | Call | Defined | 2024-05-15 | |
| 2023-12-31 | $6,217,711 | 13,932 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $2,142,192 | 4,800 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $4,462,900 | 10,000 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $3,881,510 | 9,500 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $2,737,486 | 6,700 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $19,881,502 | 48,660 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $19,651,468 | 47,801 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $1,233,330 | 3,000 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $616,665 | 1,500 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $4,026,240 | 9,000 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $2,639,424 | 5,900 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $3,635,247 | 8,126 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $23,339,947 | 58,363 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $15,421,329 | 38,562 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $3,860,331 | 9,653 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $31,246,684 | 92,591 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $4,442,117 | 13,163 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $3,091,225 | 9,160 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $2,874,467 | 7,663 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $4,711,381 | 12,560 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $13,168,986 | 35,107 | Shares | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||