Rocket Lab

RKLB · NASDAQ

$50.90−$0.46 (−0.90%)TodayMarket closed · Oct 20, 7:59 PM ET

Prev close $51.36

Who owns RKLB

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 31.3% of RKLB’s shares.

VK Services, LLC5.8%
BlackRock Institutional Trust Company, N.A.4.9%
Vanguard Portfolio Management, LLC4.5%
Vanguard Capital Management, LLC4.2%
Next 6 largest institutions11.8%
All other shareholders68.7%

Top institutional holders of RKLB
Holder	Shares	% of shares	Change, last filing	Filed
VK Services, LLC	34.89M	5.83%	+34.89M	Feb 17, 2026
BlackRock Institutional Trust Company, N.A.	29.42M	4.92%	−186.66K	Jun 30, 2026
Vanguard Portfolio Management, LLC	27.12M	4.53%	+1.38M	Jun 30, 2026
Vanguard Capital Management, LLC	25.30M	4.23%	+1.01M	Jun 30, 2026
Invesco Capital Management LLC	17.46M	2.92%	+14.58M	Jun 30, 2026
State Street Investment Management (US)	14.44M	2.41%	+517.32K	Jun 30, 2026
JP Morgan Asset Management	10.51M	1.76%	+2.53M	Jun 30, 2026
Geode Capital Management, L.L.C.	10.50M	1.76%	−67.65K	Jun 30, 2026
Baillie Gifford & Co.	10.38M	1.74%	−8.04M	Jun 30, 2026
Capital World Investors	7.37M	1.23%	+128.33K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of RKLB
Holder	Shares	% of shares	Change, last filing	Filed
Vanguard Total Stock Market Index Fund	18.43M	3.08%	+52.84K	Jul 31, 2026
Vanguard Mid-Cap Index Fund	12.53M	2.09%	−16.66K	Jul 31, 2026
Invesco QQQ Trust	12.45M	2.08%	+476.04K	Aug 31, 2026
Vanguard Growth Index Fund	6.59M	1.10%	−40.87K	Jul 31, 2026
Vanguard Extended Market Index Fund	5.87M	0.98%	+21.62K	Jul 31, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $380.28M (99 trades) of RKLB on the open market, with no buys.

Latest RKLB insider transactions
Insider	Date	Type	Shares	Price	Value
Spice Adam C.	Oct 1, 2026	Option exercise	140.16K	—	—
Spice Adam C.	Oct 1, 2026	Sale	15.20K	$71.79	$1.09M
Spice Adam C.	Oct 1, 2026	Sale	85.29K	$70.89	$6.05M
Spice Adam C.	Oct 1, 2026	Sale	39.67K	$70.28	$2.79M
Spice Adam C.	Oct 1, 2026	Option exercise	140.16K	$1.09	$152.77K
Spice Adam C.	Sep 2, 2026	Option exercise	140.16K	—	—
Spice Adam C.	Sep 2, 2026	Sale	72.90K	$62.97	$4.59M
Spice Adam C.	Sep 2, 2026	Sale	67.26K	$62.26	$4.19M
Spice Adam C.	Sep 2, 2026	Option exercise	140.16K	$1.09	$152.77K
Saintil Merline	Aug 31, 2026	Gift	261.90K	—	—

Short interest

Settled Sep 30, 2026

Shares short: 44.44M
Days to cover: 2.06
% of shares outstanding: 7.43%
Average daily volume: 21.54M
Change since last report: +2.2%

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