Position in TMO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$148,858,876
+$121,310,086 QoQ
Shares Held
302,848
+537.0% QoQ
Ownership
0.081%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 98.56033389687235.ToString("F0")%
Shared 0.ToString("F0")%
None 1.4396661031276414.ToString("F0")%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Derivatives in TMO
reported options exposure · as of Mar 31, 2026CallValue
$294,918
CallShares
600
PutValue
$245,765
PutShares
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 Mar 31, 2026D. E. Shaw & Co., Inc. holds $1,676,976,764 across 27 Diagnostics & Research names. TMO ranks #5 (8.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WAT |
Waters Corp /De/
|
1,025,240 | $305,316,471 | |
| 2 | DHR |
Danaher Corp /De/
|
1,428,248 | $270,795,820 | |
| 3 | MEDP |
Medpace Holdings, Inc.
|
432,602 | $207,731,153 | |
| 4 | A |
Agilent Technologies, Inc.
|
1,695,923 | $193,301,303 | |
| 5 | TMO |
Thermo Fisher Scientific Inc.
This page
|
302,848 | $148,858,876 | |
| 6 | ICLR |
Icon PLC
|
1,198,555 | $132,632,096 | |
| 7 | NTRA |
Natera, Inc.
|
491,336 | $98,262,286 | |
| 8 | MTD |
Mettler Toledo International Inc/
|
73,125 | $92,225,250 |
All Filings in TMO
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $294,918 | 600 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $148,858,876 | 302,848 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $245,765 | 500 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $27,548,790 | 47,543 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $3,824,370 | 6,600 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $637,395 | 1,100 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $31,262,448 | 64,456 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $7,372,304 | 15,200 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $24,165,416 | 59,600 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $1,905,662 | 4,700 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $537,628,606 | 1,325,972 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $2,288,960 | 4,600 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $117,120,609 | 235,371 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $547,360 | 1,100 | Call | Defined | 2025-05-15 | |
| 2024-12-31 | $5,618,484 | 10,800 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $4,682,070 | 9,000 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $282,654,484 | 543,326 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $8,536,266 | 13,800 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $208,983,255 | 337,849 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $111,298,992 | 201,264 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $774,200 | 1,400 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $33,521,867 | 57,676 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $7,381,367 | 12,700 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $10,810,506 | 18,600 | Call | Defined | 2024-05-15 | |
| 2023-12-31 | $48,620,364 | 91,600 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $54,404,381 | 102,497 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $20,223,099 | 38,100 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $46,365,172 | 91,600 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $110,012,505 | 217,343 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $5,669,104 | 11,200 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $49,879,300 | 95,600 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $140,829,716 | 269,918 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $4,800,100 | 9,200 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $10,086,475 | 17,500 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $31,873,261 | 55,300 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $25,776,995 | 44,723 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $37,688,672 | 68,439 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $34,748,539 | 63,100 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $39,209,128 | 71,200 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $16,483,675 | 32,500 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $170,101,888 | 335,381 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $24,852,310 | 49,000 | Put | Defined | 2022-11-14 | |
| 2022-06-30 | $130,233,451 | 239,717 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $15,972,432 | 29,400 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $29,337,120 | 54,000 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $220,098,634 | 372,638 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $46,956,675 | 79,500 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $31,186,320 | 52,800 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $60,318,496 | 90,400 | Call | Defined | 2022-02-14 | |
| 2021-12-31 | $350,174,891 | 524,811 | Shares | Defined | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||