Sienna Gestion’s Lam Research LRCX Stock Holding History

Sienna Gestion’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	$10.4M	Sell	51,734 -64,086	-55%	-$14.3M	0.68%	50
2025 Q4	$20M	Sell	115,820 -12,840	-10%	-$2M	1.19%	19
2025 Q3	$15.7M	Buy	128,660 +43,990	+52%	+$4.66M	1.1%	18
2025 Q2	$7.52M	Buy	84,670 +7,141	+9%	+$566K	0.52%	69
2025 Q1	$5.48M	Sell	77,529 -9,941	-11%	-$783K	0.44%	86
2024 Q4	$6.32M	Hold	87,470	–	–	0.43%	85
2024 Q3	$7.12M	Buy	87,470 +23,560	+37%	+$2.05M	0.47%	85
2024 Q2	$6.8M	Buy	63,910 +58,830	+1,158%	+$5.64M	0.6%	65
2024 Q1	$494K	Buy	+5,080	New	+$447K	0.04%	116

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

Sienna Gestion's LRCX Position: Q1 2026 in Review

Sienna Gestion reduced its Lam Research (LRCX) stake by 55% in Q1 2026, selling an estimated $14.3M and leaving 51,734 shares worth $10.4M. The position accounts for 0.68% of the portfolio, ranked #50.

Sienna Gestion first reported a position in LRCX in Q1 2024 and has held it in 9 quarters since. The position peaked at $20M in Q4 2025. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

Sienna Gestion held 51,734 shares of Lam Research worth $10.4M as of Q1 2026.
Sienna Gestion sold 64,086 Lam Research shares in Q1 2026, an estimated $14.3M.
Lam Research made up 0.68% of Sienna Gestion's portfolio in Q1 2026, its #50 holding.
Sienna Gestion first reported a position in Lam Research in Q1 2024 and has held it in 9 quarters since.
Sienna Gestion's Lam Research position peaked at $20M in Q4 2025.
2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on Sienna Gestion's 13F filing for Q1 2026, filed 15 May 2026.