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D. E. Shaw & Co., Inc.

Position in TMO — Thermo Fisher Scientific Inc.

CIK 1009207 New York, NY

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, 2026
CallValue
$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, 2026

D. 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
5 TMO
Thermo Fisher Scientific Inc.
This page
302,848 $148,858,876

All Filings in TMO

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $294,918 600
2026-03-31 $148,858,876 302,848
2026-03-31 $245,765 500
2025-12-31 $27,548,790 47,543
2025-12-31 $3,824,370 6,600
2025-12-31 $637,395 1,100
2025-09-30 $31,262,448 64,456
2025-09-30 $7,372,304 15,200
2025-06-30 $24,165,416 59,600
2025-06-30 $1,905,662 4,700
2025-06-30 $537,628,606 1,325,972
2025-03-31 $2,288,960 4,600
2025-03-31 $117,120,609 235,371
2025-03-31 $547,360 1,100
2024-12-31 $5,618,484 10,800
2024-12-31 $4,682,070 9,000
2024-12-31 $282,654,484 543,326
2024-09-30 $8,536,266 13,800
2024-09-30 $208,983,255 337,849
2024-06-30 $111,298,992 201,264
2024-06-30 $774,200 1,400
2024-03-31 $33,521,867 57,676
2024-03-31 $7,381,367 12,700
2024-03-31 $10,810,506 18,600
2023-12-31 $48,620,364 91,600
2023-12-31 $54,404,381 102,497
2023-12-31 $20,223,099 38,100
2023-09-30 $46,365,172 91,600
2023-09-30 $110,012,505 217,343
2023-09-30 $5,669,104 11,200
2023-06-30 $49,879,300 95,600
2023-06-30 $140,829,716 269,918
2023-06-30 $4,800,100 9,200
2023-03-31 $10,086,475 17,500
2023-03-31 $31,873,261 55,300
2023-03-31 $25,776,995 44,723
2022-12-31 $37,688,672 68,439
2022-12-31 $34,748,539 63,100
2022-12-31 $39,209,128 71,200
2022-09-30 $16,483,675 32,500
2022-09-30 $170,101,888 335,381
2022-09-30 $24,852,310 49,000
2022-06-30 $130,233,451 239,717
2022-06-30 $15,972,432 29,400
2022-06-30 $29,337,120 54,000
2022-03-31 $220,098,634 372,638
2022-03-31 $46,956,675 79,500
2022-03-31 $31,186,320 52,800
2021-12-31 $60,318,496 90,400
2021-12-31 $350,174,891 524,811