Picton Mahoney Asset Management’s Lam Research LRCX Stock Holding History

Picton Mahoney Asset Management’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	$18M	Buy	84,101 +4,610	+6%	+$1.03M	0.13%	141
2025 Q4	$13.6M	Buy	+79,491	New	+$12.4M	0.11%	167
2024 Q4	–	Sell	-54,030	Closed	-$4.41M	–	894
2024 Q3	$4.41M	Buy	54,030 +10,080	+23%	+$876K	0.14%	173
2024 Q2	$4.68M	Sell	43,950 -45,280	-51%	-$4.34M	0.18%	162
2024 Q1	$8.67M	Buy	89,230 +46,060	+107%	+$4.05M	0.26%	109
2023 Q4	$3.38M	Buy	+43,170	New	+$2.94M	0.09%	159
2023 Q3	–	Sell	-3,750	Closed	-$241K	–	456
2023 Q2	$241K	Sell	3,750 -200	-5%	-$11.3K	0.01%	276
2023 Q1	$209K	Buy	+3,950	New	+$194K	0.01%	330
2021 Q4	–	Sell	-216,100	Closed	-$12.3M	–	987
2021 Q3	$12.3M	Buy	216,100 +17,820	+9%	+$1.08M	0.45%	46
2021 Q2	$12.9M	Buy	198,280 +42,390	+27%	+$2.68M	0.38%	52
2021 Q1	$9.28M	Buy	+155,890	New	+$8.49M	0.44%	66
2020 Q2	–	Sell	-291,550	Closed	-$7M	–	338
2020 Q1	$7M	Buy	291,550 +32,550	+13%	+$937K	0.4%	63
2019 Q4	$7.57M	Buy	+259,000	New	+$6.88M	0.51%	70
2014 Q1	–	Sell	-1,205,000	Closed	-$6.56M	–	371
2013 Q4	$6.56M	Buy	1,205,000 +13,000	+1%	+$68.4K	0.38%	92
2013 Q3	$6.1M	Sell	1,192,000 -1,868,000	-61%	-$9.13M	0.4%	88
2013 Q2	$13.6M	Buy	+3,060,000	New	+$13.8M	1.01%	28

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

Picton Mahoney Asset Management's LRCX Position: Q1 2026 in Review

Picton Mahoney Asset Management increased its Lam Research (LRCX) stake by 5.8% in Q1 2026, buying an estimated $1.03M and bringing the position to 84,101 shares worth $18M. The position accounts for 0.13% of the portfolio, ranked #141.

Picton Mahoney Asset Management first reported a position in LRCX in Q2 2013 and has held it in 16 quarters since. 2,631 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

Picton Mahoney Asset Management held 84,101 shares of Lam Research worth $18M as of Q1 2026.
Picton Mahoney Asset Management bought 4,610 Lam Research shares in Q1 2026, an estimated $1.03M.
Lam Research made up 0.13% of Picton Mahoney Asset Management's portfolio in Q1 2026, its #141 holding.
Picton Mahoney Asset Management first reported a position in Lam Research in Q2 2013 and has held it in 16 quarters since.
2,631 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q1 2026, filed 13 May 2026.