Rocket Lab USA, Inc.
Rocket Lab USA, Inc. (RKLB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · RKLB · as of Sep 30, 2025
Ownership Breakdown
734
Institutional Holders
▲ 170 vs Q2
$14.54B
Total Inst. Value
▲ $4.90B vs Q2
578.87M
Shares Outstanding
freeFloat 92.32%
269.59M
13F Shares Held
▼ 5.31M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
RKLB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC guided missiles & space vehicles & parts | 41.81M | 8.12% | 8.12% | $2.00T | Nov 7, 2025 | ▲ 2.13M |
BLACKROCK, INC. guided missiles & space vehicles & parts | 31.41M | 6.10% | 6.10% | $1.51T | Nov 12, 2025 | ▲ 8.66M |
UBS GROUP AG guided missiles & space vehicles & parts | 17.36M | 3.37% | 3.37% | $831.83B | Nov 13, 2025 | ▲ 32.0K |
CAPITAL WORLD INVESTORS guided missiles & space vehicles & parts | 14.46M | 2.81% | 2.81% | $692.88B | Nov 13, 2025 | ▲ 1.24M |
STATE STREET CORP guided missiles & space vehicles & parts | 12.40M | 2.41% | 2.41% | $594.06B | Nov 14, 2025 | ▲ 1.49M |
BAILLIE GIFFORD & CO guided missiles & space vehicles & parts | 12.13M | 2.35% | 2.35% | $580.95B | Oct 31, 2025 | ▲ 7.73M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP guided missiles & space vehicles & parts | 10.25M | 1.99% | 1.99% | $491.26B | Nov 14, 2025 | ▲ 2.86M |
D. E. SHAW & CO., INC. guided missiles & space vehicles & parts | 9.51M | 1.85% | 1.85% | $455.80B | Nov 14, 2025 | ▼ 1.96M |
VK SERVICES, LLC guided missiles & space vehicles & parts | 8.32M | 1.62% | 1.62% | $398.78B | Nov 14, 2025 | ▼ 13.00M |
GEODE CAPITAL MANAGEMENT, LLC guided missiles & space vehicles & parts | 8.18M | 1.59% | 1.59% | $390.78B | Nov 12, 2025 | ▲ 1.18M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
32
Increased
+49.35M shares3
New Positions
first time holders14
Decreased
−27.66M shares0
Sold Out
fully exitedNet shares change (top 50)
+21.69M
+49.35M / −27.66M
Net new holders
+21
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
RKLB insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
55
Sell transactions
0.20
Buy/Sell ratio
$6M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Slusky Alexander R director | Jun 2, 2026 | Sale | 40,000 | $123.60 | $4.94M | 334.7K | Form 4 ↗ |
Spice Adam C. Chief Financial Officer | Jun 3, 2026 | Award | 275,319 | — | — | 1.20M | Form 4 ↗ |
Ricupati Agostino VP Corp Controller & CAO | Jun 3, 2026 | Award | 27,532 | — | — | 27.5K | Form 4 ↗ |
Spice Adam C. Chief Financial Officer | May 29, 2026 | Gift | 62,724 | — | — | 920.3K | Form 4 ↗ |
Spice Adam C. Chief Financial Officer | May 29, 2026 | Gift | 62,724 | — | — | 62.7K | Form 4 ↗ |
Spice Adam C. Chief Financial Officer | Jun 1, 2026 | Gift | 62,724 | — | — | 0 | Form 4 ↗ |
Frank Edward H. director | May 29, 2026 | Gift | 91,373 | — | — | 91.4K | Form 4 ↗ |
Frank Edward H. director | May 29, 2026 | Gift | 91,373 | — | — | 53.6K | Form 4 ↗ |
Slusky Alexander R director | May 28, 2026 | Sale | 40,000 | $149.10 | $5.96M | 394.7K | Form 4 ↗ |
Slusky Alexander R director | May 28, 2026 | Sale | 20,000 | $150.00 | $3.00M | 374.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Rocket Lab USA, Inc. (RKLB) is primarily owned by institutional investors, who hold approximately 46.6% of total shares outstanding. Company insiders own approximately 7.68%, while retail and public investors account for the remaining 45.74%.
The largest institutional shareholder of Rocket Lab USA, Inc. is VANGUARD GROUP INC, holding approximately 41.81 million shares — equal to 8.12% of outstanding shares — as of September 30, 2025.
A total of 734 institutional investors currently hold RKLB stock, with a combined institutional value of approximately $14.54 billion as of the most recent 13F filing period.
Frequently asked questions
RKLB ownershipRocket Lab USA, Inc. (RKLB) is primarily owned by institutional investors, who hold approximately 46.6% of shares. The largest shareholder is VANGUARD GROUP INC with a 8.12% stake. Company insiders hold 7.68%. Data sourced from SEC Form 13F as of September 30, 2025.