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	$22.6M	Sell	105,600 -89,700	-46%	-$20.1M	0.06%	223
2025 Q4	$33.4M	Buy	195,300 +62,700	+47%	+$9.75M	0.07%	211
2025 Q3	$17.8M	Sell	132,600 -23,600	-15%	-$2.5M	0.03%	314
2025 Q2	$15.2M	Sell	156,200 -213,400	-58%	-$16.9M	0.03%	324
2025 Q1	$26.9M	Sell	369,600 -605,200	-62%	-$47.7M	0.07%	215
2024 Q4	$70.4M	Buy	974,800 +419,800	+76%	+$31.8M	0.14%	115
2024 Q3	$45.3M	Buy	555,000 +19,000	+4%	+$1.65M	0.08%	180
2024 Q2	$57.1M	Buy	536,000 +390,000	+267%	+$37.4M	0.12%	132
2024 Q1	$14.2M	Sell	146,000 -361,000	-71%	-$31.8M	0.03%	403
2023 Q4	$39.7M	Sell	507,000 -113,000	-18%	-$7.7M	0.08%	228
2023 Q3	$38.9M	Buy	620,000 +383,000	+162%	+$25.2M	0.09%	185
2023 Q2	$15.2M	Sell	237,000 -792,000	-77%	-$44.6M	0.03%	416
2023 Q1	$54.5M	Sell	1,029,000 -2,618,000	-72%	-$128M	0.11%	176
2022 Q4	$153M	Buy	3,647,000 +2,539,000	+229%	+$106M	0.24%	67
2022 Q3	$40.6M	Buy	1,108,000 +357,000	+48%	+$15.9M	0.06%	329
2022 Q2	$32M	Sell	751,000 -1,188,000	-61%	-$56.6M	0.03%	370
2022 Q1	$104M	Sell	1,939,000 -170,000	-8%	-$9.9M	0.05%	125
2021 Q4	$152M	Sell	2,109,000 -1,961,000	-48%	-$123M	0.18%	77
2021 Q3	$232M	Buy	4,070,000 +1,290,000	+46%	+$78.5M	0.22%	53
2021 Q2	$181M	Buy	+2,780,000	New	+$175M	0.25%	58
2021 Q1	–	Sell	-6,012,000	Closed	-$284M	–	1818
2020 Q4	$284M	Sell	6,012,000 -2,673,000	-31%	-$112M	0.28%	50
2020 Q3	$288M	Buy	8,685,000 +5,742,000	+195%	+$198M	0.21%	75
2020 Q2	$95.2M	Sell	2,943,000 -839,000	-22%	-$22.9M	0.11%	145
2020 Q1	$90.8M	Sell	3,782,000 -1,547,000	-29%	-$44.5M	0.12%	122
2019 Q4	$156M	Sell	5,329,000 -2,803,000	-34%	-$74.4M	0.18%	78
2019 Q3	$188M	Buy	8,132,000 +5,093,000	+168%	+$107M	0.21%	61
2019 Q2	$57.1M	Buy	3,039,000 +1,683,000	+124%	+$31.9M	0.06%	162
2019 Q1	$24.3M	Buy	1,356,000 +142,000	+12%	+$2.37M	0.03%	275
2018 Q4	$16.5M	Sell	1,214,000 -598,000	-33%	-$8.57M	0.02%	383
2018 Q3	$27.5M	Buy	1,812,000 +787,000	+77%	+$13.4M	0.03%	228
2018 Q2	$17.7M	Buy	1,025,000 +834,000	+437%	+$16.1M	0.03%	300
2018 Q1	$3.88M	Buy	191,000 +46,000	+32%	+$911K	0.01%	589
2017 Q4	$2.67M	Sell	145,000 -276,000	-66%	-$5.42M	﹤0.01%	821
2017 Q3	$7.79M	Sell	421,000 -624,000	-60%	-$10.1M	0.01%	462
2017 Q2	$14.8M	Buy	1,045,000 +865,000	+481%	+$12.7M	0.03%	318
2017 Q1	$2.31M	Sell	180,000 -1,527,000	-89%	-$18M	﹤0.01%	820
2016 Q4	$18M	Sell	1,707,000 -575,000	-25%	-$5.84M	0.04%	297
2016 Q3	$21.6M	Buy	2,282,000 +407,000	+22%	+$3.7M	0.04%	270
2016 Q2	$15.8M	Sell	1,875,000 -2,930,000	-61%	-$23.5M	0.03%	338
2016 Q1	$39.7M	Sell	4,805,000 -1,887,000	-28%	-$13.7M	0.09%	142
2015 Q4	$53.1M	Buy	6,692,000 +3,667,000	+121%	+$27.6M	0.11%	119
2015 Q3	$19.8M	Buy	3,025,000 +22,000	+0.7%	+$161K	0.04%	271
2015 Q2	$24.4M	Sell	3,003,000 -362,000	-11%	-$2.84M	0.05%	251
2015 Q1	$23.6M	Buy	3,365,000 +2,557,000	+316%	+$20.2M	0.06%	280
2014 Q4	$6.41M	Buy	808,000 +247,000	+44%	+$1.91M	0.02%	612
2014 Q3	$4.19M	Buy	561,000 +454,000	+424%	+$3.24M	0.01%	788
2014 Q2	$722K	Buy	107,000 +96,000	+873%	+$573K	﹤0.01%	1196
2014 Q1	$61K	Buy	+11,000	New	+$58.4K	﹤0.01%	2169
2013 Q4	–	Sell	-148,000	Closed	-$756K	–	3480
2013 Q3	$756K	Buy	+148,000	New	+$723K	﹤0.01%	735

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.