Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in RKLB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 38.0M | $2.44B | +14.8% | 6.563% | 0.04% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 25.7M | $1.65B | — | 4.447% | 0.09% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 24.3M | $1.56B | — | 4.197% | 0.04% |
| 4 | UBS Group AG | 19.4M | $1.25B | -4.3% | 3.361% | 0.19% |
| 5 | BAILLIE GIFFORD & CO | 18.4M | $1.18B | +3.2% | 3.184% | 1.21% |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 14.2M | $913.1M | -3.6% | 2.457% | 0.10% |
| 7 | STATE STREET CORP | 13.9M | $894.2M | +11.2% | 2.406% | 0.03% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 10.6M | $683.4M | +17.4% | 1.827% | 0.04% |
| 9 | Capital World Investors | 7.2M | $465.1M | -55.3% | 1.251% | 0.06% |
| 10 | Capital International Investors | 6.7M | $430.3M | — | 1.158% | 0.10% |
| 11 | Defiance ETFs, LLC | 5.6M | $361.3M | +18556.6% | 0.972% | 5.18% |
| 12 | D. E. Shaw & Co., Inc. | 5.4M | $349.7M | -33.0% | 0.941% | 0.33% |
| 13 | MORGAN STANLEY | 5.4M | $345.7M | +28.3% | 0.930% | 0.02% |
| 14 | GOLDMAN SACHS GROUP INC | 4.7M | $299.6M | +138.1% | 0.806% | 0.03% |
| 15 | BANK OF AMERICA CORP /DE/ | 4.5M | $291.1M | -11.3% | 0.783% | 0.02% |
| 16 | FMR LLC | 3.7M | $237.3M | -13.5% | 0.638% | 0.01% |
| 17 | Invesco Ltd. | 3.6M | $231.1M | -31.6% | 0.622% | 0.04% |
| 18 | WESTFIELD CAPITAL MANAGEMENT CO LP | 3.2M | $203.7M | +22.4% | 0.548% | 0.85% |
| 19 | NORTHERN TRUST CORP | 3.1M | $198.4M | +18.7% | 0.534% | 0.03% |
| 20 | VANGUARD FIDUCIARY TRUST CO | 3.1M | $197.0M | — | 0.530% | 0.05% |
| 21 | UBS ASSET MANAGEMENT AMERICAS INC | 2.4M | $153.2M | +40.2% | 0.412% | 0.03% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.4M | $151.4M | +6.5% | 0.407% | 0.02% |
| 23 | ARK Investment Management LLC | 2.2M | $144.1M | +0.4% | 0.388% | 1.12% |
| 24 | VOYA INVESTMENT MANAGEMENT LLC | 2.2M | $143.8M | +2.1% | 0.387% | 0.15% |
| 25 | ROYAL BANK OF CANADA | 2.2M | $140.4M | -10.7% | 0.378% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in RKLB — a direct measure of their conviction.
Filings activity in RKLB during Q1 2026, grouped by how each filer changed its position.
4 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 841 | +6.6% | 33.35% | 2.47 pp | $19.77B | 6.9% |
| Q4 2025 | 789 | +25% | 35.82% | +11.75 pp | $21.24B | +49% |
| Q3 2025 | 630 | +31% | 24.07% | +6.84 pp | $14.27B | +40% |
| Q2 2025 | 481 | — | 17.23% | — | $10.21B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying RKLB stock.
Based on Q1 2026 13F filings, institutional ownership of Rocket Lab USA, Inc. stands at 33.4%, held across 841 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of RKLB, with approximately 37,985,996 shares worth $2.44B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of RKLB, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, ARK Investment Management LLC.
Our composite Smart Money Score for RKLB is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
171 institutions opened new positions in RKLB during Q1 2026, while 119 fully exited. 291 added to existing positions and 374 trimmed.
RKLB institutional ownership fell by 2.47 percentage points quarter-over-quarter, with a net change of +52 holders.
The top 10 institutions account for 58.0% of all reported 13F value in RKLB, and the top 25 account for 75.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Rocket Lab USA, Inc. (RKLB) Institutional Ownership