Walleye Trading’s Thermo Fisher Scientific TMO Stock Holding History

Walleye Trading’s Portfolio TMO Stock Details TMO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$31.1M	Sell	63,300 -15,800	-20%	-$8.57M	0.05%	360
2025 Q4	$45.8M	Buy	79,100 +46,500	+143%	+$26.3M	0.07%	319
2025 Q3	$15.8M	Sell	32,600 -10,600	-25%	-$4.93M	0.02%	673
2025 Q2	$17.5M	Sell	43,200 -9,800	-18%	-$4.1M	0.03%	579
2025 Q1	$26.4M	Sell	53,000 -11,000	-17%	-$5.96M	0.06%	352
2024 Q4	$33.3M	Sell	64,000 -10,900	-15%	-$5.99M	0.07%	304
2024 Q3	$46.3M	Buy	74,900 +17,300	+30%	+$10.2M	0.1%	215
2024 Q2	$31.9M	Buy	57,600 +20,200	+54%	+$11.6M	0.08%	276
2024 Q1	$21.7M	Sell	37,400 -19,300	-34%	-$10.8M	0.05%	384
2023 Q4	$30.1M	Buy	56,700 +11,800	+26%	+$5.71M	0.06%	299
2023 Q3	$22.7M	Buy	44,900 +9,800	+28%	+$5.22M	0.06%	325
2023 Q2	$18.3M	Sell	35,100 -12,900	-27%	-$6.96M	0.06%	327
2023 Q1	$27.7M	Buy	48,000 +27,200	+131%	+$15.3M	0.06%	274
2022 Q4	$11.5M	Sell	20,800 -23,100	-53%	-$12.2M	0.03%	586
2022 Q3	$22.3M	Buy	43,900 +22,100	+101%	+$12.4M	0.07%	285
2022 Q2	$11.8M	Buy	21,800 +11,500	+112%	+$6.33M	0.04%	531
2022 Q1	$6.08M	Buy	10,300 +6,000	+140%	+$3.45M	0.02%	885
2021 Q4	$2.87M	Sell	4,300 -13,900	-76%	-$8.68M	0.01%	1349
2021 Q3	$10.4M	Buy	18,200 +11,700	+180%	+$6.42M	0.04%	534
2021 Q2	$3.28M	Buy	6,500 +3,700	+132%	+$1.75M	0.01%	1092
2021 Q1	$1.28M	Sell	2,800 -8,700	-76%	-$4.15M	0.01%	1704
2020 Q4	$5.36M	Sell	11,500 -5,300	-32%	-$2.49M	0.02%	693
2020 Q3	$7.42M	Buy	16,800 +6,400	+62%	+$2.64M	0.04%	397
2020 Q2	$3.77M	Buy	10,400 +5,500	+112%	+$1.84M	0.02%	679
2020 Q1	$1.39M	Sell	4,900 -12,800	-72%	-$4.04M	0.01%	1083
2019 Q4	$5.75M	Sell	17,700 -5,500	-24%	-$1.67M	0.04%	507
2019 Q3	$6.76M	Buy	23,200 +3,400	+17%	+$974K	0.06%	332
2019 Q2	$5.82M	Sell	19,800 -1,000	-5%	-$275K	0.05%	374
2019 Q1	$5.69M	Sell	20,800 -2,100	-9%	-$523K	0.04%	440
2018 Q4	$5.13M	Sell	22,900 -13,300	-37%	-$3.12M	0.04%	462
2018 Q3	$8.84M	Sell	36,200 -7,600	-17%	-$1.75M	0.05%	381
2018 Q2	$9.07M	Buy	43,800 +32,300	+281%	+$6.86M	0.05%	325
2018 Q1	$2.37M	Buy	11,500 +100	+0.9%	+$21K	0.01%	1062
2017 Q4	$2.17K	Buy	11,400 +4,500	+65%	+$862K	0.01%	1237
2017 Q3	$1.3K	Sell	6,900 -7,500	-52%	-$1.36M	0.01%	1645
2017 Q2	$2.51K	Buy	14,400 +4,600	+47%	+$773K	0.02%	1029
2017 Q1	$1.51K	Sell	9,800 -9,800	-50%	-$1.5M	0.01%	1291
2016 Q4	$2.77M	Sell	19,600 -4,100	-17%	-$604K	0.02%	750
2016 Q3	$3.77M	Buy	23,700 +16,300	+220%	+$2.51M	0.02%	575
2016 Q2	$1.09M	Sell	7,400 -21,600	-74%	-$3.19M	0.01%	1522
2016 Q1	$4.11M	Sell	29,000 -10,100	-26%	-$1.35M	0.04%	468
2015 Q4	$5.55M	Buy	39,100 +24,600	+170%	+$3.28M	0.05%	332
2015 Q3	$1.77M	Sell	14,500 -8,500	-37%	-$1.11M	0.02%	724
2015 Q2	$2.99M	Sell	23,000 -8,900	-28%	-$1.16M	0.03%	520
2015 Q1	$4.29M	Buy	31,900 +25,400	+391%	+$3.27M	0.04%	367
2014 Q4	$816K	Sell	6,500 -4,400	-40%	-$535K	0.01%	1180
2014 Q3	$1.33M	Buy	10,900 +4,800	+79%	+$584K	0.02%	661
2014 Q2	$720	Buy	6,100 +5,300	+663%	+$624K	0.01%	1007
2014 Q1	$96	Sell	800 -4,600	-85%	-$547K	﹤0.01%	2398
2013 Q4	$600K	Buy	+5,400	New	+$537K	0.01%	1449
2013 Q3	–	Sell	-12,100	Closed	-$1.02M	–	3240
2013 Q2	$1.02M	Buy	+12,100	New	+$1.01M	0.01%	874

Other funds holding TMO

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Walleye Trading's TMO Position: Q1 2026 in Review

Walleye Trading sold out of Thermo Fisher Scientific (TMO) in Q1 2026, closing a stake of 52,190 shares — an estimated $28.3M sold.

Walleye Trading first reported a position in TMO in Q2 2013 and held it in 34 quarters. The position peaked at $30.2M in Q4 2025. 2,587 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

Walleye Trading reported no remaining Thermo Fisher Scientific position as of Q1 2026 after selling out during the quarter.
Walleye Trading sold 52,190 Thermo Fisher Scientific shares in Q1 2026, an estimated $28.3M.
Walleye Trading first reported a position in Thermo Fisher Scientific in Q2 2013 and held it in 34 quarters.
Walleye Trading's Thermo Fisher Scientific position peaked at $30.2M in Q4 2025.
2,587 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.