Stocks
TMO
CITADEL ADVISORS LLC

CITADEL ADVISORS LLC

CIK

0001423053

City

Chicago

State / Country

Stock

TMO — THERMO FISHER SCIENTIFIC INC.

Holdings in TMO

Position Over Time

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2025-12-31	$203,792,565	351,700	+22.4%	Shares	Defined	2026-02-17
2025-12-31	$166,533,930	287,400	-58.4%	Shares	Defined	2026-02-17
2025-12-31	$400,055,176	690,405	+97.4%	Shares	Defined	2026-02-17
2025-09-30	$169,611,978	349,701	+349601.0%	Shares	Defined	2025-11-14
2025-09-30	$48,502	100	-100.0%	Shares	Defined	2025-11-14
2025-09-30	$141,916,852	292,600	-18.6%	Shares	Defined	2025-11-14
2025-06-30	$145,803,416	359,600	+20.0%	Shares	Defined	2025-08-14
2025-06-30	$121,475,816	299,600	-72.7%	Shares	Defined	2025-08-14
2025-06-30	$444,717,853	1,096,823	+809.7%	Shares	Defined	2025-08-14
2025-03-31	$59,997,124	120,573	-11.3%	Shares	Defined	2025-05-15
2025-03-31	$67,623,840	135,900	-52.2%	Shares	Defined	2025-05-15
2025-03-31	$141,616,960	284,600	+17.7%	Shares	Defined	2025-05-15
2024-12-31	$125,843,637	241,900	-8.4%	Shares	Defined	2025-02-14
2024-12-31	$137,340,720	264,000	-22.3%	Shares	Defined	2025-02-14
2024-12-31	$176,846,985	339,940	+9.2%	Shares	Defined	2025-02-14
2024-09-30	$192,560,841	311,300	+19.7%	Shares	Defined	2024-11-14
2024-09-30	$160,890,057	260,100	+56.5%	Shares	Defined	2024-11-14
2024-09-30	$102,797,673	166,186	-83.1%	Shares	Defined	2024-11-14
2024-06-30	$543,429,782	982,694	+317.1%	Shares	Defined	2024-08-14
2024-06-30	$130,286,800	235,600	-8.1%	Shares	Defined	2024-08-14
2024-06-30	$141,789,200	256,400	-25.6%	Shares	Defined	2024-08-14
2024-03-31	$200,401,208	344,800	+44.8%	Shares	Defined	2024-05-15
2024-03-31	$138,386,101	238,100	+136.5%	Shares	Defined	2024-05-15
2024-03-31	$58,510,410	100,670	-64.1%	Shares	Defined	2024-05-15
2023-12-31	$148,992,753	280,700	-29.1%	Shares	Defined	2024-02-14
2023-12-31	$210,121,714	395,866	-9.8%	Shares	Defined	2024-02-14
2023-12-31	$232,963,731	438,900	+29.5%	Shares	Defined	2024-02-14
2023-09-30	$171,591,630	339,000	+37.3%	Shares	Defined	2023-11-14
2023-09-30	$125,003,742	246,960	-47.5%	Shares	Defined	2023-11-14
2023-09-30	$238,051,751	470,300	+273.9%	Shares	Defined	2023-11-14
2023-06-30	$65,635,106	125,798	-77.6%	Shares	Defined	2023-08-14
2023-06-30	$292,910,450	561,400	+34.1%	Shares	Defined	2023-08-14
2023-06-30	$218,352,375	418,500	-1.3%	Shares	Defined	2023-08-14
2023-03-31	$244,265,606	423,800	+19.2%	Shares	Defined	2023-05-15
2023-03-31	$204,899,535	355,500	+49.5%	Shares	Defined	2023-05-15
2023-03-31	$137,011,794	237,715	+56.7%	Shares	Defined	2023-05-15
2022-12-31	$83,514,891	151,655	-63.6%	Shares	Defined	2023-02-14
2022-12-31	$229,747,868	417,200	-1.1%	Shares	Defined	2023-02-14
2022-12-31	$232,281,042	421,800	-49.1%	Shares	Defined	2023-02-14
2022-09-30	$419,953,320	828,000	+2598.7%	Shares	Defined	2022-11-14
2022-09-30	$15,561,603	30,682	-93.2%	Shares	Defined	2022-11-14
2022-09-30	$228,184,781	449,900	+65.0%	Shares	Defined	2022-11-14
2022-06-30	$148,143,763	272,684	-21.6%	Shares	Defined	2022-08-15
2022-06-30	$189,007,112	347,900	-13.1%	Shares	Defined	2022-08-15
2022-06-30	$217,420,656	400,200	-39.7%	Shares	Defined	2022-08-15
2022-03-31	$392,191,600	664,000	+2556.0%	Shares	Defined	2022-05-16
2022-03-31	$14,766,250	25,000	-21.0%	Shares	Defined	2022-05-16
2022-03-31	$18,695,844	31,653	-91.9%	Shares	Defined	2022-05-16
2021-12-31	$260,156,876	389,900	+1574.8%	Shares	Defined	2022-02-14
2021-12-31	$15,534,014	23,281	—	Shares	Defined	2022-02-14