Rocket Lab USA, Inc. (RKLB) Ownership
RKLB ownership summary
as of October 18, 2026- Institutions
- 62.1% of shares outstanding
- Insiders
- 0.80% of shares outstanding
- Shares outstanding
- 598.5M
- Float
- 556.9M shares available to trade
- Short interest
- 7.47% 44.4M shares short
- Days to cover
- 2.22 short interest up 2.2% vs prior month
- Institutions 62.10%
- Insiders 0.80%
- Other investors 37.10%
RKLB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 6.35% | 40.6M | $2.06B | +2.6M (+6.8%) | June 30, 2026 |
| 2 | Vanguard Portfolio Management, LLC | 4.24% | 27.1M | $1.38B | +1.4M (+5.4%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 3.96% | 25.3M | $1.29B | +1.0M (+4.2%) | June 30, 2026 |
| 4 | Amvescap Plc. | 2.87% | 18.3M | $932.6M | +14.7M (+409.8%) | June 30, 2026 |
| 5 | State Street Corp | 2.26% | 14.4M | $734.2M | +517,316 (+3.7%) | June 30, 2026 |
| 6 | JPMorgan Chase & Co | 2.16% | 13.8M | $701.9M | +3.1M (+29.3%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 1.64% | 10.5M | $534.0M | −67,647 (−0.6%) | June 30, 2026 |
| 8 | Baillie Gifford & Co Limited. | 1.62% | 10.4M | $527.9M | −8.0M (−43.6%) | June 30, 2026 |
| 9 | Capital World Investors | 1.15% | 7.4M | $374.7M | +128,330 (+1.8%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 1.08% | 6.9M | $350.6M | +1.5M (+28.1%) | June 30, 2026 |
| 11 | The Goldman Sachs Group Inc | 0.87% | 5.6M | $282.6M | +3.0M (+117.5%) | June 30, 2026 |
| 12 | NORGES BANK | 0.85% | 5.4M | $276.4M | +548,325 (+11.2%) | June 30, 2026 |
| 13 | Bank of America Corp | 0.67% | 4.3M | $218.7M | −231,539 (−5.1%) | June 30, 2026 |
| 14 | FMR Inc | 0.58% | 3.7M | $188.2M | +6,836 (+0.2%) | June 30, 2026 |
| 15 | UBS Group AG | 0.56% | 3.6M | $183.5M | +1.5M (+73.5%) | June 30, 2026 |
| 16 | Vanguard Fiduciary Trust Co | 0.52% | 3.4M | $170.5M | +284,405 (+9.3%) | June 30, 2026 |
| 17 | Northern Trust Corp | 0.52% | 3.3M | $168.4M | +221,626 (+7.2%) | June 30, 2026 |
| 18 | Charles Schwab Investment Management Inc | 0.44% | 2.8M | $144.2M | +478,437 (+20.3%) | June 30, 2026 |
| 19 | UBS Asset Mgmt Americas Inc | 0.43% | 2.7M | $139.2M | +352,094 (+14.8%) | June 30, 2026 |
| 20 | T. Rowe Price Investment Management,Inc. | 0.41% | 2.6M | $134.3M | +2.6M (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 17 holders added 34.1M shares and 3 cut 8.3M.
RKLB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.88% | 18.4M | $935.1M | −36,415 (−0.2%) | August 31, 2026 |
| 2 | Vanguard MStar Mid Cap Index Instl | 1.96% | 12.5M | $636.5M | −6,687 (−0.1%) | August 31, 2026 |
| 3 | Invesco QQQ Trust | 1.95% | 12.5M | $635.3M | −20,372 (−0.2%) | September 30, 2026 |
| 4 | Vanguard MStar Growth Index Investor | 1.03% | 6.6M | $334.5M | −8,074 (−0.1%) | August 31, 2026 |
| 5 | iShares US Aerospace & Defense ETF | 0.81% | 5.2M | $263.5M | −8,858 (−0.2%) | September 30, 2026 |
| 6 | Vanguard MStar Mid Cap Growth ETF | 0.70% | 4.4M | $226.0M | +20,697 (+0.5%) | August 31, 2026 |
| 7 | American Funds Growth Fd of Amer A | 0.60% | 3.8M | $193.7M | −4.8M (−55.6%) | June 30, 2026 |
| 8 | iShares Russell Mid-Cap Growth ETF | 0.49% | 3.1M | $159.6M | −3,354 (−0.1%) | September 30, 2026 |
| 9 | Invesco NASDAQ 100 ETF | 0.43% | 2.8M | $139.8M | +6,384 (+0.2%) | September 30, 2026 |
| 10 | Stt Strt® SPDR® S&P® Arspc & Dfnc ETF | 0.41% | 2.6M | $134.6M | +5,524 (+0.2%) | September 30, 2026 |
| 11 | Fidelity Extended Market Index | 0.39% | 2.5M | $126.2M | −41,134 (−1.6%) | August 31, 2026 |
| 12 | JPMorgan Mid Cap Growth I | 0.37% | 2.3M | $118.7M | −220,023 (−8.6%) | August 31, 2026 |
| 13 | iShares Russell Mid-Cap ETF | 0.36% | 2.3M | $117.1M | +4,237 (+0.2%) | September 30, 2026 |
| 14 | VanEck Space Innovators ETF A USD Acc | 0.34% | 2.2M | $111.9M | — | September 30, 2026 |
| 15 | iShares Russell 1000 Growth ETF | 0.33% | 2.1M | $106.4M | −1,442 (−0.1%) | September 30, 2026 |
| 16 | Fidelity Mid Cap Index | 0.32% | 2.1M | $104.3M | +16,402 (+0.8%) | August 31, 2026 |
| 17 | JPMorgan Large Cap Growth I | 0.27% | 1.7M | $86.7M | −1.3M (−43.6%) | August 31, 2026 |
| 18 | Tema Space Innovators ETF | 0.26% | 1.7M | $86.1M | — | September 30, 2026 |
| 19 | Xtrackers S&P 500 Swap ETF 1C | 0.23% | 1.5M | $74.9M | −1.5M (−49.9%) | December 31, 2025 |
| 20 | ARK Innovation ETF | 0.22% | 1.4M | $72.3M | −111,200 (−7.2%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
RKLB insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-06 | Merline Saintil | Sell | $75.04 | 18,126 | $1.4M |
| 2026-03-04 | Arjun Kampani | Sell | $71.95 | 23,711 | $1.7M |
| 2026-03-04 | Frank Klein | Sell | $71.95 | 36,768 | $2.6M |
| 2026-03-02 | Adam C Spice | Sell | $69.59 | 62,744 | $4.4M |
| 2026-03-02 | Arjun Kampani | Sell | $69.59 | 28,761 | $2.0M |
| 2026-03-02 | Frank Klein | Sell | $69.59 | 44,482 | $3.1M |
| 2026-03-02 | Peter Beck | Sell | $69.59 | 18,857 | $1.3M |
| 2026-01-14 | Merline Saintil | Sell | $90.00 | 12,500 | $1.1M |
| 2026-01-13 | Merline Saintil | Sell | $86.58 | 96,000 | $8.3M |
| 2026-01-05 | Adam C Spice | Sell | $75.50 | 1,365,665 | $103.1M |
| 2026-01-02 | Frank Klein | Sell | $72.95 | 100,000 | $7.3M |
| 2025-12-23 | Edward H Frank | Sell | $77.39 | 2,500 | $193,475 |
| 2025-12-19 | Nina Armagno | Sell | $68.21 | 27,314 | $1.9M |
| 2025-12-19 | Merline Saintil | Sell | $65.00 | 5,000 | $325,000 |
| 2025-12-17 | Merline Saintil | Sell | $54.46 | 5,000 | $272,300 |
| 2025-12-16 | Peter Beck | Sell | $54.73 | 939,746 | $51.4M |
| 2025-12-15 | Peter Beck | Sell | $57.47 | 1,560,254 | $89.7M |
| 2025-12-12 | Merline Saintil | Sell | $65.00 | 15,000 | $975,000 |
| 2025-12-04 | Merline Saintil | Sell | $48.00 | 10,000 | $480,000 |
| 2025-11-26 | Arjun Kampani | Sell | $42.08 | 10,554 | $444,112 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
RKLB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns RKLB
Institutional investors own 62.1% of Rocket Lab's shares and insiders 0.80%. The largest holder is BlackRock Inc with 6.35% of the shares (40.6M), as of June 30, 2026. Among the top 20 institutions, 17 added shares and 3 reduced their stake in the latest filings. Short interest is 7.47% of the float, or 2.22 days of average trading volume. The share count rose 27.8% since 2020.
Related: RKLB analyst forecast, RKLB key metrics. See the RKLB stock overview for the latest quote and news.
RKLB ownership FAQ
Who owns the most Rocket Lab stock?
The largest shareholders of Rocket Lab are BlackRock Inc (6.35%), Vanguard Portfolio Management, LLC (4.24%), Vanguard Capital Management, LLC (3.96%), Amvescap Plc. (2.87%), State Street Corp (2.26%).
What percentage of Rocket Lab is owned by institutions?
Institutions hold 62.1% of Rocket Lab's shares outstanding; insiders hold 0.80%.
Which funds own Rocket Lab?
The largest fund holders of Rocket Lab are Vanguard MStar Total Stk Mkt Idx Invest (2.88%), Vanguard MStar Mid Cap Index Instl (1.96%), Invesco QQQ Trust (1.95%), Vanguard MStar Growth Index Investor (1.03%), iShares US Aerospace & Defense ETF (0.81%).
What is Rocket Lab's short interest?
44.4M shares of Rocket Lab were sold short, 7.47% of the float; at the average daily volume it would take 2.22 days to cover.
Are insiders buying or selling Rocket Lab?
Of the latest 20 reported insider transactions in Rocket Lab (since November 26, 2025), 0 were purchases and 20 were sales.
How many shares of Rocket Lab are outstanding?
Rocket Lab has 598.5M shares outstanding, of which 556.9M are in the public float.