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Rambus (RMBS)
NASDAQ
$128.33-$12.02 (-8.56%)
Price as of Jun 23, 2026 2:39 PM EDT- $15.2BMarket Cap
- 133.92%1-Year Change
- SemiconductorsIndustry
Rambus (RMBS)
$128.33-$12.02 (-8.56%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 15.08% | 16.3M | +30,120 (+0.18%) | Mar 31, 2026 |
BLACKROCK INC. | 14.60% | 15.8M | +345,248 (+2.19%) | Jun 30, 2024 |
BLACKROCK FUNDING, INC. /DE | 13.08% | 14.1M | +445,878 (+3.15%) | Dec 31, 2024 |
VANGUARD GROUP INC | 11.37% | 12.3M | -410,844 (-3.34%) | Dec 31, 2025 |
BLACKROCK FUND ADVISORS | 7.87% | 8.5M | +1.0M (+12.05%) | Dec 31, 2016 |
N/A | 6.14% | 6.6M | +6.6M (+100.00%) | Mar 31, 2026 |
INVESCO LTD. | 6.01% | 6.5M | +2.4M (+36.17%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
iSHARES TRUST | 9.44% | 10.2M | +117,375 (+1.15%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 7.87% | 8.5M | +135,355 (+1.59%) | Mar 31, 2026 |
MAINSTAY FUNDS | 4.81% | 5.2M | 0 (0.00%) | Jan 31, 2026 |
MAINSTAY VP FUNDS TRUST | 3.26% | 3.5M | 0 (0.00%) | Mar 31, 2026 |
GABELLI CONVERTIBLE & INCOME SECURITIES FUND INC | 1.80% | 1.9M | 0 (0.00%) | Mar 31, 2026 |
AIM SECTOR FUNDS (INVESCO SECTOR FUNDS) | 1.66% | 1.8M | -184,210 (-10.28%) | Jan 31, 2026 |
VANGUARD WORLD FUND | 1.53% | 1.7M | +40,451 (+2.44%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions1.8B (70.94%)
- Mutual Funds705.3M (28.58%)
- Insiders11.8M (0.48%)
- Other0 (0.00%)
Insider Transactions
- 0.48% (11.8M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 6Number of InsiderSelling (last 12 months)
- $138.2MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Allen John K Chief Accounting Officer | In Kind | Apr 03, 2026 | $104,300.82 | 1,131 | $92.22 | 17,131 |
Seraphin Luc President and CEO | Sell | Apr 02, 2026 | $216,045.44 | 2,511 | $86.04 | 348,682 |
Seraphin Luc President and CEO | Sell | Apr 02, 2026 | $239,564.88 | 2,750 | $87.11 | 345,932 |
Seraphin Luc President and CEO | Sell | Apr 02, 2026 | $14,577.77 | 165 | $88.35 | 345,767 |
LAUB STEVEN | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 9,019 |
Shinn John SVP, General Counsel | Award | Apr 01, 2026 | $0.00 | 5,558 | $0.00 | 24,025 |
Allen John K Chief Accounting Officer | Award | Apr 01, 2026 | $0.00 | 2,779 | $0.00 | 19,415 |
Rao Meera | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 31,484 |
KISSNER CHARLES | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 40,545 |
PENG VICTOR | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 2,391 |
Allen John K Chief Accounting Officer | In Kind | Apr 01, 2026 | $44,525.25 | 495 | $89.95 | 18,920 |
Seraphin Luc President and CEO | Award | Apr 01, 2026 | $0.00 | 32,684 | $0.00 | 363,754 |
STANG ERIC B | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 2,223 |
Shinn John SVP, General Counsel | In Kind | Apr 01, 2026 | $172,074.35 | 1,913 | $89.95 | 22,112 |
Allen John K Chief Accounting Officer | In Kind | Apr 01, 2026 | $59,187.10 | 658 | $89.95 | 18,262 |
Seraphin Luc President and CEO | In Kind | Apr 01, 2026 | $1.1M | 12,561 | $89.95 | 351,193 |
Sayiner Necip | Award | Apr 01, 2026 | $0.00 | 2,223 | $0.00 | 33,047 |
Shinn John SVP, General Counsel | Sell | Mar 10, 2026 | $386,098.85 | 4,356 | $88.64 | 18,667 |
Shinn John SVP, General Counsel | Sell | Mar 10, 2026 | $17,909.00 | 200 | $89.55 | 18,467 |
Shinn John SVP, General Counsel | Sell | Mar 03, 2026 | $209,104.48 | 2,254 | $92.77 | 25,326 |
Shinn John SVP, General Counsel | Sell | Mar 03, 2026 | $150,793.89 | 1,603 | $94.07 | 23,723 |
Shinn John SVP, General Counsel | Sell | Mar 03, 2026 | $66,420.97 | 700 | $94.89 | 23,023 |
PENG VICTOR | Award | Mar 02, 2026 | $0.00 | 168 | $0.00 | 168 |
Lynch Desmond SVP, CFO | Sell | Feb 23, 2026 | $433,837.69 | 4,273 | $101.53 | 63,618 |
Seraphin Luc President and CEO | Award | Feb 01, 2026 | $0.00 | 143,744 | $0.00 | 463,507 |
FAN XIANZHI SEAN EVP, COO | Award | Feb 01, 2026 | $0.00 | 148,802 | $0.00 | 286,357 |
Shinn John SVP, General Counsel | Award | Feb 01, 2026 | $0.00 | 17,276 | $0.00 | 37,464 |
FAN XIANZHI SEAN EVP, COO | In Kind | Feb 01, 2026 | $10.5M | 92,403 | $113.71 | 193,954 |
Seraphin Luc President and CEO | In Kind | Feb 01, 2026 | $10.5M | 92,523 | $113.71 | 370,984 |
Lynch Desmond SVP, CFO | Award | Feb 01, 2026 | $0.00 | 34,554 | $0.00 | 89,996 |