459 hedge funds and large institutions have $6.22B invested in Rambus in 2025 Q2 according to their latest regulatory filings, with 87 funds opening new positions, 191 increasing their positions, 132 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.16% less ownership

Funds ownership: 91.59%90.43% (-1.2%)

46% less call options, than puts

Call options by funds: $35.8M | Put options by funds: $65.8M

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
459
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$35.8M
Puts
$65.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
451
$321
452
$321
453
$256
454
$193
455
$192
456
$192
457
$192
458
$128
459
$64
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475