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RKLB · Rocket Lab Corp

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Market Cap
$38.53B
Shares
598.35M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1,127
Total Value: $40,362,721,719
Total Shares: 397,076,202
Showing 1–100 of 1,203 holdings by value · page 1 of 13

Institutional Ownership Trend

12 quarters

Holder Concentration

Across 1,127 13F filers · Δ vs Mar 31, 2026
Top Holder
10.2%
Dec 2020 → Jun 2026 · range 0.0% – 100.0%
−0.5 pts
Top 5
33.7%
Dec 2020 → Jun 2026 · range 0.0% – 100.0%
−1.9 pts
Top 10
52.0%
Dec 2020 → Jun 2026 · range 0.0% – 100.0%
−1.8 pts
HHI
353
Dec 2020 → Jun 2026 · range 0 – 10,000
Broadly held−25

Quarterly Activity

vs Mar 31, 2026
New
321
Increased
491
Decreased
237
Sold Out
75
Unchanged
78
Holder count: +246
Institutional value: +77.8%
Shares held: +12.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,203
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1819994 CUSIP 773121108 13F (30d) 697 filings 683 filers Visit website Investor relations