Parallax Volatility Advisers’s Thermo Fisher Scientific TMO Stock Holding History

Parallax Volatility Advisers’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	-36,100	Closed	-$20.9M	–	1837
2025 Q4	$20.9M	Buy	+36,100	New	+$20.4M	0.04%	294
2025 Q3	–	Sell	-100	Closed	-$40.5K	–	1819
2025 Q2	$40.5K	Sell	100 -11,600	-99%	-$4.85M	﹤0.01%	1450
2025 Q1	$5.82M	Sell	11,700 -3,500	-23%	-$1.9M	0.02%	584
2024 Q4	$7.91M	Sell	15,200 -9,800	-39%	-$5.39M	0.02%	650
2024 Q3	$15.5M	Buy	25,000 +14,500	+138%	+$8.58M	0.03%	397
2024 Q2	$5.81M	Sell	10,500 -51,300	-83%	-$29.4M	0.01%	670
2024 Q1	$35.9M	Sell	61,800 -20,900	-25%	-$11.7M	0.08%	205
2023 Q4	$43.9M	Sell	82,700 -38,000	-31%	-$18.4M	0.09%	206
2023 Q3	$61.1M	Buy	120,700 +66,100	+121%	+$35.2M	0.14%	126
2023 Q2	$28.5M	Buy	54,600 +12,700	+30%	+$6.85M	0.06%	256
2023 Q1	$24.1M	Sell	41,900 -1,100	-3%	-$620K	0.05%	340
2022 Q4	$23.7M	Sell	43,000 -5,300	-11%	-$2.81M	0.04%	473
2022 Q3	$24.5M	Sell	48,300 -25,400	-34%	-$14.2M	0.04%	468
2022 Q2	$40M	Sell	73,700 -46,800	-39%	-$25.8M	0.04%	327
2022 Q1	$71.2M	Sell	120,500 -36,500	-23%	-$21M	0.04%	201
2021 Q4	$105M	Sell	157,000 -66,000	-30%	-$41.2M	0.12%	112
2021 Q3	$127M	Buy	223,000 +95,700	+75%	+$52.5M	0.12%	116
2021 Q2	$64.2M	Sell	127,300 -12,300	-9%	-$5.8M	0.09%	155
2021 Q1	$63.7M	Sell	139,600 -70,000	-33%	-$33.4M	0.14%	119
2020 Q4	$97.6M	Sell	209,600 -69,700	-25%	-$32.7M	0.1%	159
2020 Q3	$123M	Buy	279,300 +28,200	+11%	+$11.7M	0.09%	193
2020 Q2	$91M	Buy	251,100 +191,400	+321%	+$64.2M	0.11%	152
2020 Q1	$16.9M	Buy	59,700 +58,100	+3,631%	+$18.3M	0.02%	448
2019 Q4	$519K	Buy	1,600 +1,400	+700%	+$425K	﹤0.01%	1728
2019 Q3	$58K	Buy	+200	New	+$57.3K	﹤0.01%	2059
2019 Q2	–	Sell	-4,400	Closed	-$1.2M	–	3720
2019 Q1	$1.2M	Sell	4,400 -68,500	-94%	-$17M	﹤0.01%	1191
2018 Q4	$16.3M	Buy	72,900 +30,400	+72%	+$7.13M	0.02%	391
2018 Q3	$10.4M	Sell	42,500 -39,100	-48%	-$9M	0.01%	458
2018 Q2	$16.9M	Buy	81,600 +14,100	+21%	+$2.99M	0.02%	306
2018 Q1	$13.9M	Buy	67,500 +56,800	+531%	+$11.9M	0.02%	316
2017 Q4	$2.03M	Buy	+10,700	New	+$2.05M	﹤0.01%	916
2017 Q2	–	Sell	-3,600	Closed	-$553K	–	3932
2017 Q1	$553K	Buy	+3,600	New	+$550K	﹤0.01%	1439
2016 Q4	–	Sell	-37,700	Closed	-$6M	–	4150
2016 Q3	$6M	Buy	37,700 +27,400	+266%	+$4.22M	0.01%	611
2016 Q2	$1.52M	Sell	10,300 -8,200	-44%	-$1.21M	﹤0.01%	1019
2016 Q1	$2.62M	Buy	18,500 +17,000	+1,133%	+$2.28M	0.01%	810
2015 Q4	$214K	Buy	1,500 +400	+36%	+$53.4K	﹤0.01%	1869
2015 Q3	$133K	Buy	1,100 +300	+38%	+$39.1K	﹤0.01%	1925
2015 Q2	$104K	Sell	800 -231,500	-100%	-$30.2M	﹤0.01%	2261
2015 Q1	$31.2M	Buy	232,300 +220,500	+1,869%	+$28.4M	0.07%	212
2014 Q4	$1.48M	Buy	11,800 +9,400	+392%	+$1.14M	﹤0.01%	1245
2014 Q3	$292K	Sell	2,400 -1,400	-37%	-$170K	﹤0.01%	2210
2014 Q2	$449K	Sell	3,800 -8,400	-69%	-$989K	﹤0.01%	1444
2014 Q1	$1.47M	Buy	12,200 +10,700	+713%	+$1.27M	0.01%	662
2013 Q4	$167K	Buy	+1,500	New	+$149K	﹤0.01%	1556
2013 Q3	–	Sell	-200	Closed	-$17K	–	3231
2013 Q2	$17K	Buy	+200	New	+$16.6K	﹤0.01%	2065

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

Parallax Volatility Advisers's TMO Position: Q1 2026 in Review

Parallax Volatility Advisers sold out of Thermo Fisher Scientific (TMO) in Q1 2026, closing a stake of 1,116 shares — an estimated $647K sold.

Parallax Volatility Advisers first reported a position in TMO in Q2 2013 and held it in 28 quarters. The position peaked at $34.9M in Q3 2021. 2,590 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

Parallax Volatility Advisers reported no remaining Thermo Fisher Scientific position as of Q1 2026 after selling out during the quarter.
Parallax Volatility Advisers sold 1,116 Thermo Fisher Scientific shares in Q1 2026, an estimated $647K.
Parallax Volatility Advisers first reported a position in Thermo Fisher Scientific in Q2 2013 and held it in 28 quarters.
Parallax Volatility Advisers's Thermo Fisher Scientific position peaked at $34.9M in Q3 2021.
2,590 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.