Calamos Advisors
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Calamos Advisors’s Lam Research LRCX Stock Holding History

Calamos 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
2021
Q1 		– Sell
-535,000
Closed -$25.3M – 938
2020
Q4 		$25.3M Buy
535,000
+115,000
+27% +$4.84M 0.15% 180
2020
Q3 		$13.9M Hold
420,000
– – 0.09% 244
2020
Q2 		$13.6M Buy
+420,000
New +$11.5M 0.1% 233
2020
Q1 		– Sell
-948,000
Closed -$27.7M – 751
2019
Q4 		$27.7M Buy
948,000
+718,000
+312% +$19.1M 0.14% 199
2019
Q3 		$5.32M Sell
230,000
-1,475,000
-87% -$31M 0.03% 499
2019
Q2 		$32M Buy
1,705,000
+230,000
+16% +$4.36M 0.18% 168
2019
Q1 		$26.4M Buy
1,475,000
+1,090,000
+283% +$18.2M 0.16% 186
2018
Q4 		$5.24M Sell
385,000
-86,000
-18% -$1.23M 0.03% 427
2018
Q3 		$7.14M Buy
471,000
+149,000
+46% +$2.54M 0.04% 376
2018
Q2 		$5.57M Buy
322,000
+72,000
+29% +$1.39M 0.03% 416
2018
Q1 		$5.08M Buy
250,000
+10,000
+4% +$198K 0.03% 427
2017
Q4 		$3.89B Sell
240,000
-290,000
-55% -$5.7M 19.81% 1
2017
Q3 		$792K Sell
530,000
-3,000
-0.6% -$48.7K 0.01% 546
2017
Q2 		$7.54M Buy
533,000
+526,650
+8,294% +$7.72M 0.06% 322
2017
Q1 		$589K Sell
6,350
-7,900
-55% -$92.9K ﹤0.01% 562
2016
Q4 		$990K Buy
14,250
+5,250
+58% +$53.3K 0.01% 560
2016
Q3 		$486K Sell
9,000
-25,630
-74% -$233K ﹤0.01% 553
2016
Q2 		$2.62M Buy
+34,630
New +$278K 0.02% 420
2015
Q3 		– Sell
-4,730
Closed -$252K – 701
2015
Q2 		$252K Buy
+4,730
New +$37.1K ﹤0.01% 635
2015
Q1 		– Sell
-2,550
Closed -$245K – 707
2014
Q4 		$245K Buy
+2,550
New +$19.8K ﹤0.01% 642
2014
Q3 		– Sell
-41,850
Closed -$6.76M – 658
2014
Q2 		$6.76M Hold
41,850
– – 0.04% 303
2014
Q1 		$2.91M Sell
41,850
-600
-1% -$3.19K 0.02% 396
2013
Q4 		$3.25M Buy
+42,450
New +$223K 0.02% 370

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

Calamos Advisors's LRCX Position: Q1 2026 in Review

Calamos Advisors increased its Lam Research (LRCX) stake by 13% in Q1 2026, buying an estimated $10.4M and bringing the position to 413,151 shares worth $88.3M. The position accounts for 0.31% of the portfolio, ranked #64.

Calamos Advisors first reported a position in LRCX in Q4 2013 and has held it in 44 quarters since. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.

  • Calamos Advisors held 413,151 shares of Lam Research worth $88.3M as of Q1 2026.
  • Calamos Advisors bought 46,734 Lam Research shares in Q1 2026, an estimated $10.4M.
  • Lam Research made up 0.31% of Calamos Advisors's portfolio in Q1 2026, its #64 holding.
  • Calamos Advisors first reported a position in Lam Research in Q4 2013 and has held it in 44 quarters since.
  • 2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.

Based on Calamos Advisors's 13F filing for Q1 2026, filed 4 May 2026.