Jane Street’s Lam Research LRCX Stock Holding History

Jane Street’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	$480M	Buy	2,247,400 +351,200	+19%	+$78.5M	0.06%	209
2025 Q4	$325M	Buy	1,896,200 +181,400	+11%	+$28.2M	0.05%	249
2025 Q3	$230M	Buy	1,714,800 +798,600	+87%	+$84.6M	0.03%	323
2025 Q2	$89.2M	Sell	916,200 -140,400	-13%	-$11.1M	0.02%	507
2025 Q1	$76.8M	Buy	1,056,600 +487,000	+85%	+$38.4M	0.02%	467
2024 Q4	$41.1M	Sell	569,600 -575,400	-50%	-$43.6M	0.01%	796
2024 Q3	$93.4M	Buy	1,145,000 +399,000	+53%	+$34.7M	0.02%	410
2024 Q2	$79.4M	Sell	746,000 -120,000	-14%	-$11.5M	0.02%	482
2024 Q1	$84.1M	Sell	866,000 -1,620,000	-65%	-$143M	0.02%	419
2023 Q4	$195M	Buy	2,486,000 +826,000	+50%	+$56.3M	0.05%	231
2023 Q3	$104M	Sell	1,660,000 -701,000	-30%	-$46.1M	0.03%	310
2023 Q2	$152M	Buy	2,361,000 +517,000	+28%	+$29.1M	0.05%	224
2023 Q1	$97.8M	Sell	1,844,000 -3,465,000	-65%	-$170M	0.04%	308
2022 Q4	$223M	Buy	5,309,000 +2,383,000	+81%	+$99.7M	0.1%	121
2022 Q3	$107M	Sell	2,926,000 -471,000	-14%	-$21M	0.05%	264
2022 Q2	$145M	Buy	3,397,000 +212,000	+7%	+$10.1M	0.06%	207
2022 Q1	$171M	Sell	3,185,000 -1,660,000	-34%	-$96.6M	0.06%	216
2021 Q4	$348M	Buy	4,845,000 +1,466,000	+43%	+$91.9M	0.11%	95
2021 Q3	$192M	Buy	3,379,000 +1,104,000	+49%	+$67.2M	0.07%	176
2021 Q2	$148M	Sell	2,275,000 -1,245,000	-35%	-$78.6M	0.06%	222
2021 Q1	$210M	Buy	3,520,000 +1,639,000	+87%	+$89.3M	0.1%	128
2020 Q4	$88.8M	Sell	1,881,000 -899,000	-32%	-$37.8M	0.04%	278
2020 Q3	$92.2M	Buy	2,780,000 +105,000	+4%	+$3.62M	0.06%	236
2020 Q2	$86.5M	Sell	2,675,000 -601,000	-18%	-$16.4M	0.07%	218
2020 Q1	$78.6M	Buy	3,276,000 +2,281,000	+229%	+$65.7M	0.08%	168
2019 Q4	$29.1M	Sell	995,000 -272,000	-21%	-$7.22M	0.04%	288
2019 Q3	$29.3M	Sell	1,267,000 -705,000	-36%	-$14.8M	0.05%	267
2019 Q2	$37M	Buy	1,972,000 +973,000	+97%	+$18.5M	0.07%	223
2019 Q1	$17.9M	Sell	999,000 -2,249,000	-69%	-$37.5M	0.03%	442
2018 Q4	$44.2M	Buy	3,248,000 +2,457,000	+311%	+$35.2M	0.09%	154
2018 Q3	$12M	Sell	791,000 -650,000	-45%	-$11.1M	0.02%	506
2018 Q2	$24.9M	Buy	1,441,000 +302,000	+27%	+$5.82M	0.06%	252
2018 Q1	$23.1M	Sell	1,139,000 -1,447,000	-56%	-$28.7M	0.06%	255
2017 Q4	$47.6M	Buy	2,586,000 +2,485,000	+2,460%	+$48.8M	0.14%	129
2017 Q3	$1.87M	Sell	101,000 -738,000	-88%	-$12M	0.01%	1661
2017 Q2	$11.9M	Buy	839,000 +766,000	+1,049%	+$11.2M	0.04%	388
2017 Q1	$937K	Buy	73,000 +54,000	+284%	+$635K	﹤0.01%	2128
2016 Q4	$201K	Buy	+19,000	New	+$193K	﹤0.01%	3729
2016 Q3	–	Sell	-27,000	Closed	-$227K	–	4309
2016 Q2	$227K	Sell	27,000 -19,000	-41%	-$153K	﹤0.01%	3611
2016 Q1	$380K	Buy	+46,000	New	+$335K	﹤0.01%	2920
2015 Q2	–	Sell	-91,000	Closed	-$639K	–	3866
2015 Q1	$639K	Buy	+91,000	New	+$720K	﹤0.01%	1795

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

Jane Street's LRCX Position: Q1 2026 in Review

Jane Street increased its Lam Research (LRCX) stake by 642% in Q1 2026, buying an estimated $135M and bringing the position to 699,544 shares worth $149M. The position accounts for 0.02% of the portfolio, ranked #486.

Jane Street first reported a position in LRCX in Q2 2013 and has held it in 49 quarters since. The position peaked at $192M in Q3 2025. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

Jane Street held 699,544 shares of Lam Research worth $149M as of Q1 2026.
Jane Street bought 605,305 Lam Research shares in Q1 2026, an estimated $135M.
Lam Research made up 0.02% of Jane Street's portfolio in Q1 2026, its #486 holding.
Jane Street first reported a position in Lam Research in Q2 2013 and has held it in 49 quarters since.
Jane Street's Lam Research position peaked at $192M in Q3 2025.
2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.