Boston Partners’s Lam Research LRCX Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $95.7M | Sell |
447,670
-28,605
| -6% | -$6.4M | 0.1% | 216 |
|
|
2025
Q4 | $81.8M | Sell |
476,275
-186,079
| -28% | -$28.9M | 0.08% | 229 |
|
|
2025
Q3 | $88.9M | Sell |
662,354
-2,543,124
| -79% | -$269M | 0.09% | 224 |
|
|
2025
Q2 | $312M | Buy |
3,205,478
+855,116
| +36% | +$67.8M | 0.35% | 99 |
|
|
2025
Q1 | $171M | Buy |
2,350,362
+2,327,041
| +9,978% | +$183M | 0.21% | 170 |
|
|
2024
Q4 | $1.79M | Sell |
23,321
-726,679
| -97% | -$55.1M | ﹤0.01% | 511 |
|
|
2024
Q3 | $61.1M | Sell |
750,000
-1,532,580
| -67% | -$133M | 0.07% | 230 |
|
|
2024
Q2 | $243M | Sell |
2,282,580
-325,840
| -12% | -$31.3M | 0.3% | 122 |
|
|
2024
Q1 | $253M | Sell |
2,608,420
-636,830
| -20% | -$56M | 0.3% | 129 |
|
|
2023
Q4 | $255M | Sell |
3,245,250
-232,160
| -7% | -$15.8M | 0.34% | 110 |
|
|
2023
Q3 | $217M | Sell |
3,477,410
-534,000
| -13% | -$35.1M | 0.3% | 113 |
|
|
2023
Q2 | $259M | Sell |
4,011,410
-113,100
| -3% | -$6.37M | 0.35% | 102 |
|
|
2023
Q1 | $218M | Sell |
4,124,510
-65,740
| -2% | -$3.23M | 0.3% | 118 |
|
|
2022
Q4 | $178M | Buy |
4,190,250
+776,960
| +23% | +$32.5M | 0.24% | 137 |
|
|
2022
Q3 | $125M | Sell |
3,413,290
-525,550
| -13% | -$23.4M | 0.18% | 157 |
|
|
2022
Q2 | $169M | Buy |
3,938,840
+1,164,520
| +42% | +$55.4M | 0.24% | 137 |
|
|
2022
Q1 | $149M | Sell |
2,774,320
-5,480
| -0.2% | -$319K | 0.18% | 169 |
|
|
2021
Q4 | $200M | Sell |
2,779,800
-1,710,320
| -38% | -$107M | 0.24% | 145 |
|
|
2021
Q3 | $255M | Sell |
4,490,120
-12,880
| -0.3% | -$784K | 0.32% | 107 |
|
|
2021
Q2 | $293M | Sell |
4,503,000
-1,070,470
| -19% | -$67.6M | 0.37% | 91 |
|
|
2021
Q1 | $332M | Sell |
5,573,470
-5,569,820
| -50% | -$303M | 0.45% | 70 |
|
|
2020
Q4 | $526M | Sell |
11,143,290
-1,769,600
| -14% | -$74.4M | 0.82% | 30 |
|
|
2020
Q3 | $428M | Buy |
12,912,890
+112,350
| +0.9% | +$3.87M | 0.78% | 35 |
|
|
2020
Q2 | $414M | Buy |
12,800,540
+276,790
| +2% | +$7.55M | 0.76% | 38 |
|
|
2020
Q1 | $300M | Buy |
12,523,750
+2,076,250
| +20% | +$59.8M | 0.6% | 54 |
|
|
2019
Q4 | $305M | Buy |
10,447,500
+2,056,650
| +25% | +$54.6M | 0.4% | 75 |
|
|
2019
Q3 | $194M | Buy |
+8,390,850
| New | +$176M | 0.26% | 115 |
|
|
2018
Q3 | – | Sell |
-29,800
| Closed | -$515K | – | 752 |
|
|
2018
Q2 | $515K | Sell |
29,800
-1,490
| -5% | -$28.7K | ﹤0.01% | 769 |
|
|
2018
Q1 | $636K | Buy |
+31,290
| New | +$620K | ﹤0.01% | 713 |
|
Other funds holding LRCX
VCM
VPM
Boston Partners's LRCX Position: Q1 2026 in Review
Boston Partners reduced its Lam Research (LRCX) stake by 6% in Q1 2026, selling an estimated $6.4M and leaving 447,670 shares worth $95.7M. The position accounts for 0.1% of the portfolio, ranked #216.
Boston Partners first reported a position in LRCX in Q1 2018 and has held it in 29 quarters since. The position peaked at $526M in Q4 2020. 2,630 funds tracked by Wall St. Rank hold LRCX as of Q1 2026.
- Boston Partners held 447,670 shares of Lam Research worth $95.7M as of Q1 2026.
- Boston Partners sold 28,605 Lam Research shares in Q1 2026, an estimated $6.4M.
- Lam Research made up 0.1% of Boston Partners's portfolio in Q1 2026, its #216 holding.
- Boston Partners first reported a position in Lam Research in Q1 2018 and has held it in 29 quarters since.
- Boston Partners's Lam Research position peaked at $526M in Q4 2020.
- 2,630 funds tracked by Wall St. Rank held Lam Research as of Q1 2026.
Based on Boston Partners's 13F filing for Q1 2026, filed 11 May 2026.