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American Trust Investment Advisors’s Lam Research LRCX Stock Holding History

American Trust Investment Advisors’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 		$6.87M Sell
32,133
-15,011
-32% -$3.36M 3.79% 4
2025
Q4 		$8.07M Buy
47,144
+12
+0% +$1.87K 4.32% 3
2025
Q3 		$6.31M Sell
47,132
-2,455
-5% -$260K 3.25% 7
2025
Q2 		$4.83M Sell
49,587
-8,410
-15% -$667K 2.44% 17
2025
Q1 		$4.22M Buy
57,997
+970
+2% +$76.4K 1.76% 23
2024
Q4 		$4.12M Buy
57,027
+3,737
+7% +$283K 1.69% 24
2024
Q3 		$4.35M Buy
53,290
+6,140
+13% +$534K 1.78% 24
2024
Q2 		$5.02M Sell
47,150
-2,630
-5% -$252K 2.44% 14
2024
Q1 		$4.84M Sell
49,780
-1,520
-3% -$134K 2.3% 16
2023
Q4 		$4.02M Sell
51,300
-9,620
-16% -$656K 2.09% 18
2023
Q3 		$3.82M Buy
60,920
+680
+1% +$44.7K 2.11% 19
2023
Q2 		$3.87M Sell
60,240
-240
-0.4% -$13.5K 2.17% 15
2023
Q1 		$3.21M Buy
60,480
+100
+0.2% +$4.91K 1.93% 23
2022
Q4 		$2.54M Buy
60,380
+250
+0.4% +$10.5K 1.61% 27
2022
Q3 		$2.2M Buy
60,130
+1,590
+3% +$70.8K 1.41% 31
2022
Q2 		$2.5M Buy
58,540
+900
+2% +$42.8K 1.56% 28
2022
Q1 		$3.1M Sell
57,640
-1,940
-3% -$113K 1.59% 30
2021
Q4 		$4.29M Sell
59,580
-80
-0.1% -$5.01K 2.13% 19
2021
Q3 		$3.4M Sell
59,660
-4,900
-8% -$298K 1.91% 23
2021
Q2 		$4.2M Sell
64,560
-3,150
-5% -$199K 2.26% 18
2021
Q1 		$4.03M Sell
67,710
-99,050
-59% -$5.4M 2.35% 13
2020
Q4 		$7.88M Buy
166,760
+110
+0.1% +$4.63K 4.87% 3
2020
Q3 		$5.53M Sell
166,650
-1,500
-0.9% -$51.7K 4% 7
2020
Q2 		$5.44M Buy
168,150
+500
+0.3% +$13.6K 4.4% 5
2020
Q1 		$4.02M Buy
167,650
+50
+0% +$1.44K 4.06% 8
2019
Q4 		$4.9M Sell
167,600
-2,300
-1% -$61.1K 3.57% 7
2019
Q3 		$3.93M Buy
169,900
+950
+0.6% +$19.9K 3.02% 11
2019
Q2 		$3.17M Sell
168,950
-33,850
-17% -$642K 2.47% 19
2019
Q1 		$3.63M Sell
202,800
-1,410
-0.7% -$23.5K 2.79% 12
2018
Q4 		$2.78M Buy
204,210
+78,400
+62% +$1.12M 2.46% 16
2018
Q3 		$1.91M Buy
125,810
+400
+0.3% +$6.83K 1.49% 26
2018
Q2 		$2.17M Sell
125,410
-840
-0.7% -$16.2K 1.77% 22
2018
Q1 		$2.56M Sell
126,250
-1,100
-0.9% -$21.8K 2.05% 19
2017
Q4 		$2.34M Buy
+127,350
New +$2.5M 1.84% 22
2016
Q4 		– Sell
-280,450
Closed -$2.66M – 74
2016
Q3 		$2.66M Sell
280,450
-17,600
-6% -$160K 2.68% 15
2016
Q2 		$2.5M Sell
298,050
-77,100
-21% -$619K 2.58% 11
2016
Q1 		$3.1M Buy
375,150
+54,400
+17% +$396K 3.19% 6
2015
Q4 		$2.55M Buy
320,750
+750
+0.2% +$5.64K 2.87% 10
2015
Q3 		$2.09M Buy
+320,000
New +$2.34M 2.43% 16

Other funds holding LRCX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

American Trust Investment Advisors's LRCX Position: Q1 2026 in Review

American Trust Investment Advisors reduced its Lam Research (LRCX) stake by 32% in Q1 2026, selling an estimated $3.36M and leaving 32,133 shares worth $6.87M. The position accounts for 3.79% of the portfolio, ranked #4.

American Trust Investment Advisors first reported a position in LRCX in Q3 2015 and has held it in 39 quarters since. The position peaked at $8.07M in Q4 2025. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

  • American Trust Investment Advisors held 32,133 shares of Lam Research worth $6.87M as of Q1 2026.
  • American Trust Investment Advisors sold 15,011 Lam Research shares in Q1 2026, an estimated $3.36M.
  • Lam Research made up 3.79% of American Trust Investment Advisors's portfolio in Q1 2026, its #4 holding.
  • American Trust Investment Advisors first reported a position in Lam Research in Q3 2015 and has held it in 39 quarters since.
  • American Trust Investment Advisors's Lam Research position peaked at $8.07M in Q4 2025.
  • 2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on American Trust Investment Advisors's 13F filing for Q1 2026, filed 15 May 2026.