Parallax Volatility Advisers’s Lam Research LRCX Stock Holding History

Parallax Volatility Advisers’s Portfolio LRCX Stock Details LRCX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$21M	Sell	98,200 -3,500	-3%	-$783K	0.05%	237
2025 Q4	$17.4M	Sell	101,700 -44,100	-30%	-$6.86M	0.03%	335
2025 Q3	$19.5M	Buy	145,800 +79,800	+121%	+$8.45M	0.03%	295
2025 Q2	$6.42M	Sell	66,000 -613,000	-90%	-$48.6M	0.01%	559
2025 Q1	$49.4M	Buy	679,000 +357,500	+111%	+$28.2M	0.13%	124
2024 Q4	$23.2M	Buy	321,500 +136,500	+74%	+$10.4M	0.05%	316
2024 Q3	$15.1M	Buy	185,000 +100,000	+118%	+$8.69M	0.03%	408
2024 Q2	$9.05M	Buy	85,000 +81,000	+2,025%	+$7.77M	0.02%	513
2024 Q1	$389K	Sell	4,000 -527,000	-99%	-$46.4M	﹤0.01%	1461
2023 Q4	$41.6M	Buy	531,000 +48,000	+10%	+$3.27M	0.08%	218
2023 Q3	$30.3M	Buy	483,000 +99,000	+26%	+$6.5M	0.07%	227
2023 Q2	$24.7M	Sell	384,000 -217,000	-36%	-$12.2M	0.05%	295
2023 Q1	$31.9M	Sell	601,000 -3,254,000	-84%	-$160M	0.07%	281
2022 Q4	$162M	Buy	3,855,000 +1,989,000	+107%	+$83.2M	0.25%	59
2022 Q3	$68.3M	Buy	1,866,000 +1,102,000	+144%	+$49.1M	0.11%	193
2022 Q2	$32.6M	Sell	764,000 -659,000	-46%	-$31.4M	0.03%	362
2022 Q1	$76.5M	Buy	1,423,000 +979,000	+220%	+$57M	0.04%	180
2021 Q4	$31.9M	Sell	444,000 -533,000	-55%	-$33.4M	0.04%	317
2021 Q3	$55.6M	Buy	977,000 +25,000	+3%	+$1.52M	0.05%	229
2021 Q2	$61.9M	Buy	+952,000	New	+$60.1M	0.08%	163
2021 Q1	–	Sell	-1,332,000	Closed	-$62.9M	–	1816
2020 Q4	$62.9M	Sell	1,332,000 -2,683,000	-67%	-$113M	0.06%	253
2020 Q3	$133M	Buy	4,015,000 +2,607,000	+185%	+$89.8M	0.1%	180
2020 Q2	$45.5M	Buy	1,408,000 +258,000	+22%	+$7.04M	0.05%	287
2020 Q1	$27.6M	Sell	1,150,000 -1,360,000	-54%	-$39.2M	0.04%	326
2019 Q4	$73.4M	Sell	2,510,000 -2,004,000	-44%	-$53.2M	0.08%	169
2019 Q3	$104M	Sell	4,514,000 -465,000	-9%	-$9.76M	0.12%	110
2019 Q2	$93.5M	Buy	4,979,000 +1,814,000	+57%	+$34.4M	0.1%	113
2019 Q1	$56.7M	Sell	3,165,000 -1,045,000	-25%	-$17.4M	0.06%	141
2018 Q4	$57.3M	Buy	4,210,000 +3,945,000	+1,489%	+$56.5M	0.08%	177
2018 Q3	$4.02M	Buy	+265,000	New	+$4.53M	﹤0.01%	790
2018 Q2	–	Sell	-1,247,000	Closed	-$25.3M	–	2818
2018 Q1	$25.3M	Buy	1,247,000 +997,000	+399%	+$19.7M	0.03%	211
2017 Q4	$4.6M	Buy	+250,000	New	+$4.91M	0.01%	634
2017 Q3	–	Sell	-1,000,000	Closed	-$14.1M	–	2791
2017 Q2	$14.1M	Buy	1,000,000 +799,000	+398%	+$11.7M	0.03%	321
2017 Q1	$2.58M	Buy	+201,000	New	+$2.36M	0.01%	780
2016 Q4	–	Sell	-261,000	Closed	-$2.47M	–	3699
2016 Q3	$2.47M	Buy	261,000 +70,000	+37%	+$637K	﹤0.01%	935
2016 Q2	$1.6M	Buy	191,000 +114,000	+148%	+$916K	﹤0.01%	1004
2016 Q1	$637K	Sell	77,000 -91,000	-54%	-$662K	﹤0.01%	1359
2015 Q4	$1.33M	Buy	168,000 +149,000	+784%	+$1.12M	﹤0.01%	1167
2015 Q3	$125K	Buy	19,000 +10,000	+111%	+$73.3K	﹤0.01%	1948
2015 Q2	$73K	Buy	+9,000	New	+$70.7K	﹤0.01%	2391
2015 Q1	–	Sell	-34,000	Closed	-$270K	–	5035
2014 Q4	$270K	Sell	34,000 -26,000	-43%	-$202K	﹤0.01%	2585
2014 Q3	$449K	Buy	60,000 +56,000	+1,400%	+$399K	﹤0.01%	1924
2014 Q2	$27K	Hold	4,000	–	–	﹤0.01%	3319
2014 Q1	$22K	Sell	4,000 -4,000	-50%	-$21.2K	﹤0.01%	2758
2013 Q4	$43K	Sell	8,000 -108,000	-93%	-$568K	﹤0.01%	2299
2013 Q3	$593K	Buy	116,000 +108,000	+1,350%	+$528K	﹤0.01%	785
2013 Q2	$35K	Buy	+8,000	New	+$36.2K	﹤0.01%	1769

Other funds holding LRCX

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

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

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

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

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

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

Parallax Volatility Advisers increased its Lam Research (LRCX) stake by 39% in Q1 2026, buying an estimated $481K and bringing the position to 7,674 shares worth $1.64M. The position accounts for ﹤0.01% of the portfolio, ranked #838.

Parallax Volatility Advisers first reported a position in LRCX in Q3 2013 and has held it in 42 quarters since. The position peaked at $79.5M in Q3 2021. 2,632 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

Parallax Volatility Advisers held 7,674 shares of Lam Research worth $1.64M as of Q1 2026.
Parallax Volatility Advisers bought 2,151 Lam Research shares in Q1 2026, an estimated $481K.
Lam Research made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #838 holding.
Parallax Volatility Advisers first reported a position in Lam Research in Q3 2013 and has held it in 42 quarters since.
Parallax Volatility Advisers's Lam Research position peaked at $79.5M in Q3 2021.
2,632 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

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