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Lam Research

1,802 hedge funds and large institutions have $76B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 268 funds opening new positions, 742 increasing their positions, 550 reducing their positions, and 140 closing their positions.

New
Increased
Maintained
Reduced
Closed

91% more first-time investments, than exits

New positions opened: 268 | Existing positions closed: 140

35% more repeat investments, than reductions

Existing positions increased: 742 | Existing positions reduced: 550

35% more funds holding in top 10

Funds holding in top 10: 2331 (+8)

6% more funds holding

Funds holding: 1,6961,802 (+106)

1.06% more ownership

Funds ownership: 80.48%81.54% (+1.1%)

4% more call options, than puts

Call options by funds: $1.79B | Put options by funds: $1.72B

1% more capital invested

Capital invested by funds: $74.9B → $76B (+$1.05B)

Holders
1,802
Holders Change
+106
Holders Change %
+6.25%
% of All Funds
24.12%
Holding in Top 10
31
Holding in Top 10 Change
+8
Holding in Top 10 Change %
+34.78%
% of All Funds
0.41%
New
268
Increased
742
Reduced
550
Closed
140
Calls
$1.79B
Puts
$1.72B
Net Calls
+$71.5M
Net Calls Change
+$633M

LRCX Hedge Fund Activity: Q1 2025 in Review

1,802 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Lam Research (LRCX) for Q1 2025, worth a combined $76B — up 1.4% from $74.9B a quarter earlier.

Buyers outnumbered sellers: 268 funds opened new LRCX positions and 140 closed out — a net gain of 128 holders — while 742 added to existing stakes and 550 trimmed.

The largest buyer was Vanguard Group, adding an estimated $659M. The largest seller was Fisher Asset Management, cutting an estimated $1.39B.

  • 1,802 institutional investors held Lam Research (LRCX) as of Q1 2025, up from 1,696 in Q4 2024.
  • Funds reported $76B of Lam Research stock for Q1 2025, up 1.4% quarter-over-quarter.
  • 268 funds opened new Lam Research positions in Q1 2025 and 140 closed out, a net change of +128 holders.
  • The largest Lam Research buyer in Q1 2025 was Vanguard Group, an estimated $659M added.
  • The largest Lam Research seller in Q1 2025 was Fisher Asset Management, an estimated $1.39B sold.

Based on aggregated 13F filings for Q1 2025.