Mattson Financial Services’s Lam Research LRCX Stock Holding History

Mattson Financial Services’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	$3.1M	Sell	14,519 -2,462	-14%	-$550K	0.74%	43
2025 Q4	$2.91M	Sell	16,981 -8,513	-33%	-$1.32M	0.68%	51
2025 Q3	$3.41M	Buy	25,494 +685	+3%	+$72.5K	0.82%	38
2025 Q2	$2.41M	Buy	24,809 +1,240	+5%	+$98.3K	0.65%	57
2025 Q1	$1.71M	Buy	23,569 +21,603	+1,099%	+$1.7M	0.52%	74
2024 Q4	$1.6M	Sell	1,966 -20,084	-91%	-$1.52M	0.51%	73
2024 Q3	$2.35M	Sell	22,050 -160	-0.7%	-$13.9K	0.84%	38
2024 Q2	$2.37M	Buy	+22,210	New	+$2.13M	0.84%	38

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

Mattson Financial Services's LRCX Position: Q1 2026 in Review

Mattson Financial Services reduced its Lam Research (LRCX) stake by 14% in Q1 2026, selling an estimated $550K and leaving 14,519 shares worth $3.1M. The position accounts for 0.74% of the portfolio, ranked #43.

Mattson Financial Services first reported a position in LRCX in Q2 2024 and has held it in 8 quarters since. The position peaked at $3.41M in Q3 2025. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

Mattson Financial Services held 14,519 shares of Lam Research worth $3.1M as of Q1 2026.
Mattson Financial Services sold 2,462 Lam Research shares in Q1 2026, an estimated $550K.
Lam Research made up 0.74% of Mattson Financial Services's portfolio in Q1 2026, its #43 holding.
Mattson Financial Services first reported a position in Lam Research in Q2 2024 and has held it in 8 quarters since.
Mattson Financial Services's Lam Research position peaked at $3.41M in Q3 2025.
2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on Mattson Financial Services's 13F filing for Q1 2026, filed 11 May 2026.