RKLB in the 13F filings
Rocket Lab Corp · CUSIP 773121108
- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 8 May 2026
- Managers listing it
- 34
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 12 listed it in both
- Shares listed
- 53,254,598
- combined, among listed positions
- Reported value
- $3.4bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 18 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -10,194,149.
Managers listing RKLB in Q1 2026
34 of 34 holders
Largest increases and reductions, by shares
Increases
- Marshall Wace LLPexisting position · 1,881,363 shares now+1,737,968
- Jane Street Group LLCexisting position · 1,686,660 shares now+1,649,203
- Artisan Partners LPnew position · 708,101 shares now+708,101
- Susquehanna International Group LLPexisting position · 759,543 shares now+616,422
- Baillie Gifford & Coexisting position · 18,428,043 shares now+576,597
Reductions
- Capital World Investorsexisting position · 7,242,084 shares now-8,958,642
- D. E. Shaw & Co.existing position · 4,191,561 shares now-2,452,811
- Invesco Ltdexisting position · 3,598,310 shares now-1,662,371
- Schonfeld Strategic Advisors LLCexisting position · 121,308 shares now-678,431
- Fidelity (FMR LLC)existing position · 3,694,934 shares now-577,880
New positions and exits
New (4)
Exited (4)
- Renaissance Technologies LLCwas $64m
- Steadfast Capital Management LPwas $7.8m
- Point72 Asset Management LPwas $3.9m
- Winton Group Ltdwas $1.8m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2025 | 9 | $1.2bn | 9 | 0 |
| Q3 2025 | 11 | $2.1bn | 7 | 5 |
| Q4 2025 | 15 | $3.8bn | 19 | 17 |
| Q1 2026 | 17 | $2.6bn | 18 | 20 |
| Q2 2026 | 13 | $4.5bn | 15 | 23 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
RKLB and RTX →RKLB and BA →RKLB and TDG →Choose a stock to compare with RKLB →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own RKLB, latest filings →Back to the 13F Explorer →