Twin Tree Management’s Thermo Fisher Scientific TMO Stock Holding History

Twin Tree Management’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	–	Sell	-88,300	Closed	-$51.2M	–	1711
2025 Q4	$51.2M	Buy	88,300 +47,700	+117%	+$27M	0.45%	21
2025 Q3	$19.7M	Buy	40,600 +10,500	+35%	+$4.89M	0.08%	286
2025 Q2	$12.2M	Sell	30,100 -37,400	-55%	-$15.6M	0.02%	690
2025 Q1	$33.6M	Buy	+67,500	New	+$36.6M	0.06%	272
2024 Q2	–	Sell	-57,800	Closed	-$33.6M	–	1653
2024 Q1	$33.6M	Buy	+57,800	New	+$32.4M	0.07%	271
2023 Q2	–	Sell	-3,000	Closed	-$1.73M	–	1511
2023 Q1	$1.73M	Sell	3,000 -203,400	-99%	-$115M	﹤0.01%	930
2022 Q4	$114M	Buy	206,400 +23,700	+13%	+$12.6M	0.25%	62
2022 Q3	$92.7M	Buy	182,700 +157,800	+634%	+$88.3M	0.18%	83
2022 Q2	$13.5M	Buy	+24,900	New	+$13.7M	0.02%	553
2022 Q1	–	Sell	-46,100	Closed	-$30.8M	–	1902
2021 Q4	$30.8M	Buy	46,100 +3,300	+8%	+$2.06M	0.06%	288
2021 Q3	$24.5M	Sell	42,800 -62,800	-59%	-$34.5M	0.05%	311
2021 Q2	$53.3M	Sell	105,600 -50,100	-32%	-$23.6M	0.14%	141
2021 Q1	$71.1M	Buy	155,700 +139,400	+855%	+$66.5M	0.27%	77
2020 Q4	$7.59M	Buy	16,300 +15,600	+2,229%	+$7.31M	0.03%	507
2020 Q3	$309K	Sell	700 -11,800	-94%	-$4.88M	﹤0.01%	1007
2020 Q2	$4.53M	Sell	12,500 -102,500	-89%	-$34.4M	0.02%	683
2020 Q1	$32.6M	Sell	115,000 -172,700	-60%	-$54.5M	0.16%	118
2019 Q4	$93.5M	Buy	287,700 +281,400	+4,467%	+$85.3M	0.32%	52
2019 Q3	$1.83M	Buy	+6,300	New	+$1.8M	0.01%	707
2019 Q2	–	Sell	-19,400	Closed	-$5.31M	–	1541
2019 Q1	$5.31M	Sell	19,400 -33,500	-63%	-$8.34M	0.03%	425
2018 Q4	$11.8M	Sell	52,900 -108,700	-67%	-$25.5M	0.07%	278
2018 Q3	$39.4M	Buy	161,600 +38,200	+31%	+$8.79M	0.27%	68
2018 Q2	$25.6M	Buy	123,400 +99,000	+406%	+$21M	0.16%	116
2018 Q1	$5.04M	Buy	+24,400	New	+$5.12M	0.04%	339
2017 Q1	–	Sell	-9,300	Closed	-$1.31M	–	1257
2016 Q4	$1.31M	Sell	9,300 -162,800	-95%	-$24M	0.01%	720
2016 Q3	$27.4M	Buy	172,100 +116,900	+212%	+$18M	0.35%	49
2016 Q2	$8.16M	Buy	55,200 +20,500	+59%	+$3.03M	0.13%	170
2016 Q1	$4.91M	Sell	34,700 -65,600	-65%	-$8.79M	0.09%	222
2015 Q4	$14.2M	Buy	+100,300	New	+$13.4M	0.28%	56
2015 Q3	–	Sell	-18,700	Closed	-$2.43M	–	1508
2015 Q2	$2.43M	Sell	18,700 -2,900	-13%	-$378K	0.06%	349
2015 Q1	$2.9M	Buy	21,600 +15,900	+279%	+$2.05M	0.07%	288
2014 Q4	$714K	Buy	+5,700	New	+$693K	0.02%	693
2014 Q2	–	Sell	-13,200	Closed	-$1.59M	–	1024
2014 Q1	$1.59M	Buy	13,200 +6,100	+86%	+$725K	0.03%	514
2013 Q4	$791K	Sell	7,100 -3,500	-33%	-$348K	0.02%	649
2013 Q3	$977K	Sell	10,600 -43,000	-80%	-$3.89M	0.03%	477
2013 Q2	$4.54M	Buy	+53,600	New	+$4.46M	0.17%	110

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

Twin Tree Management's TMO Position: Q4 2025 in Review

Twin Tree Management sold out of Thermo Fisher Scientific (TMO) in Q4 2025, closing a stake of 59,013 shares — an estimated $33.4M sold.

Twin Tree Management first reported a position in TMO in Q4 2013 and held it in 21 quarters. The position peaked at $39.1M in Q3 2022. 2,699 funds tracked by Wall St. Rank hold TMO as of Q4 2025.

Twin Tree Management reported no remaining Thermo Fisher Scientific position as of Q4 2025 after selling out during the quarter.
Twin Tree Management sold 59,013 Thermo Fisher Scientific shares in Q4 2025, an estimated $33.4M.
Twin Tree Management first reported a position in Thermo Fisher Scientific in Q4 2013 and held it in 21 quarters.
Twin Tree Management's Thermo Fisher Scientific position peaked at $39.1M in Q3 2022.
2,699 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q4 2025.

Based on Twin Tree Management's 13F filing for Q4 2025, filed 11 Feb 2026.