Zweig-DiMenna Associates’s Lam Research LRCX Stock Holding History

Zweig-DiMenna Associates’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 Q2	$38.6M	Sell	88,966 -7,534	-8%	-$2.29M	3.5%	6
2026 Q1	$20.6M	Buy	96,500 +31,100	+48%	+$6.95M	2.85%	11
2025 Q4	$11.2M	Buy	65,400 +4,151	+7%	+$646K	0.69%	48
2025 Q3	$8.2M	Sell	61,249 -1,423	-2%	-$151K	0.57%	61
2025 Q2	$6.1M	Buy	+62,672	New	+$4.97M	0.58%	55
2022 Q2	–	Sell	-68,000	Closed	-$3.66M	–	108
2022 Q1	$3.66M	Buy	+68,000	New	+$3.96M	0.49%	64
2020 Q3	–	Sell	-204,390	Closed	-$6.61M	–	139
2020 Q2	$6.61M	Buy	+204,390	New	+$5.57M	0.7%	55
2020 Q1	–	Sell	-344,610	Closed	-$10.1M	–	90
2019 Q4	$10.1M	Buy	+344,610	New	+$9.15M	1.01%	41
2018 Q3	–	Sell	-731,520	Closed	-$12.6M	–	161
2018 Q2	$12.6M	Sell	731,520 -206,250	-22%	-$3.97M	0.78%	46
2018 Q1	$19.1M	Buy	937,770 +585,870	+166%	+$11.6M	1.69%	17
2017 Q4	$6.48M	Buy	351,900 +323,900	+1,157%	+$6.36M	0.7%	53
2017 Q3	$518K	Hold	28,000	–	–	0.05%	113
2017 Q2	$396K	Buy	+28,000	New	+$411K	0.03%	151
2017 Q1	–	Sell	-20,000	Closed	-$211K	–	207
2016 Q4	$211K	Sell	20,000 -740,000	-97%	-$7.52M	0.02%	196
2016 Q3	$7.2M	Buy	760,000 +240,000	+46%	+$2.18M	0.58%	57
2016 Q2	$4.37M	Sell	520,000 -375,100	-42%	-$3.01M	0.45%	59
2016 Q1	$7.39M	Buy	+895,100	New	+$6.51M	0.65%	54
2014 Q3	–	Sell	-43,000	Closed	-$291K	–	297
2014 Q2	$291K	Buy	+43,000	New	+$257K	0.01%	167

Other funds holding LRCX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Zweig-DiMenna Associates's LRCX Position: Q2 2026 in Review

Zweig-DiMenna Associates reduced its Lam Research (LRCX) stake by 7.8% in Q2 2026, selling an estimated $2.29M and leaving 88,966 shares worth $38.6M. The position accounts for 3.5% of the portfolio, ranked #6.

Zweig-DiMenna Associates first reported a position in LRCX in Q2 2014 and has held it in 18 quarters since. 3,118 funds tracked by Wall St. Rank hold LRCX as of Q2 2026.

Zweig-DiMenna Associates held 88,966 shares of Lam Research worth $38.6M as of Q2 2026.
Zweig-DiMenna Associates sold 7,534 Lam Research shares in Q2 2026, an estimated $2.29M.
Lam Research made up 3.5% of Zweig-DiMenna Associates's portfolio in Q2 2026, its #6 holding.
Zweig-DiMenna Associates first reported a position in Lam Research in Q2 2014 and has held it in 18 quarters since.
3,118 funds tracked by Wall St. Rank held Lam Research as of Q2 2026.

Based on Zweig-DiMenna Associates's 13F filing for Q2 2026, filed 13 Aug 2026.