SEC Form 4
Rocket Lab Corporation (RKLB) insider trading
In the 12 months to Oct 26, 2026, 10 RKLB insiders reported open-market sales of $639.3M across 31 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $639.3M
- 31 filings · 10 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 21 of 31
- $597.8M of $639.3M sold (94%)
Who traded RKLB, and when
- Sale
- Sale, pre-arranged (10b5-1)
RKLB daily close from Oct 27, 2025 to Oct 26, 2026, between $39.48 and $150.23, last $53.82. 31 sale and 0 purchase filings by 10 insiders, marked at their filing dates. Peter Beck, CEO: sold $427.5M across 2 filings, first filed Dec 16, 2025, last Jul 8, 2026. Adam C. Spice, Chief Financial Officer: sold $121.8M across 3 filings, first filed Jan 6, 2026, last Oct 2, 2026. Arjun Kampani, SVP General Counsel & → SVP & General Counsel: sold $25.7M across 6 filings, first filed Nov 26, 2025, last Aug 28, 2026. Alexander R. Slusky, Director: sold $25.7M across 3 filings, first filed May 14, 2026, last Jun 5, 2026. Frank Klein, Chief Operations Officer: sold $17.9M across 5 filings, first filed Nov 26, 2025, last Aug 28, 2026. Merline Saintil, Director: sold $12.8M across 6 filings, first filed Dec 5, 2025, last Mar 9, 2026. 4 others: sold $7.7M across 6 filings, first filed Nov 21, 2025, last Jun 1, 2026.
Largest mark · tap a row for others
Peter Beck · CEO
Sale $286,410,196
3,275,779 shares at $87.43 avg
Filed Jul 8, 2026 · traded Jul 6
Pre-arranged (10b5-1) · close on filing date $83.35
Peter Beck · CEO
CEO
$427.5M soldAdam C. Spice · Chief Financial Officer
Chief Financial Officer
$121.8M soldArjun Kampani · SVP General Counsel & → SVP & General Counsel
SVP General Counsel & → SVP & General Counsel
$25.7M soldAlexander R. Slusky · Director
Director
$25.7M soldFrank Klein · Chief Operations Officer
Chief Operations Officer
$17.9M soldMerline Saintil · Director
Director
$12.8M sold4 others
Combined, one mark per week
$7.7M soldOpen-market trades
31 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Peter Beck | CEO | $427.5M | — | 2 | 100% of sales | |
| Adam C. Spice | Chief Financial Officer | $121.8M | — | 3 | 100% of sales | |
| Arjun Kampani | SVP General Counsel & → SVP & General Counsel | $25.7M | — | 6 | 63% of sales | |
| Alexander R. Slusky | Director | $25.7M | — | 3 | — | |
| Frank Klein | Chief Operations Officer | $17.9M | — | 5 | 100% of sales | |
| Merline Saintil | Director | $12.8M | — | 6 | 78% of sales | |
| Jon A. Olson | Director | $5.1M | — | 3 | 47% of sales | |
| Nina Armagno | Director | $1.9M | — | 1 | 100% of sales | |
| Marvin Bradford Clevenger | President, Rocket Lab USA, Inc | $513.4K | — | 1 | — | |
| Edward H. Frank | Director | $193.5K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Adam C. Spice Chief Financial Officer | SalePre-arranged (10b5-1) | 140,157 | $70.82 | $9.9M | 1,155,967 | |
traded | Adam C. Spice Chief Financial Officer | SalePre-arranged (10b5-1) | 140,157 | $62.63 | $8.8M | 1,228,867 | |
traded | Arjun Kampani SVP & General Counsel | SalePre-arranged (10b5-1) | 6,034 | $66.65 | $402.2K | 250,917 | |
traded | Frank Klein Chief Operations Officer | SalePre-arranged (10b5-1) | 35,558 | $66.61 | $2.4M | 945,995 | |
traded | Peter Beck CEO | SalePre-arranged (10b5-1) | 3,275,779 | $87.43 | $286.4M | 2,095,095 | |
traded | Arjun Kampani SVP & General Counsel | Sale | 88,000 | $107.98 | $9.5M | 264,705 | |
traded | Alexander R. Slusky Director | Sale | 40,000 | $123.60 | $4.9M | 334,675 | |
traded | Arjun Kampani SVP & General Counsel | SalePre-arranged (10b5-1) | 23,804 | $147.43 | $3.5M | 368,709 | |
traded | Marvin Bradford Clevenger President, Rocket Lab USA, Inc | Sale | 3,500 | $146.67 | $513.4K | 473,975 | |
traded | Frank Klein Chief Operations Officer | SalePre-arranged (10b5-1) | 36,860 | $147.42 | $5.4M | 1,043,147 | |
traded | Alexander R. Slusky Director | Sale | 60,000 | $149.40 | $9.0M | 374,675 | |
traded | Arjun Kampani SVP & General Counsel | SalePre-arranged (10b5-1) | 70,000 | $145.13 | $10.2M | 376,509 | |
traded | Alexander R. Slusky Director | Sale | 100,000 | $118.08 | $11.8M | 459,675 | |
traded | Merline Saintil Director | Sale | 18,126 | $75.04 | $1.4M | 261,903 | |
traded | Arjun Kampani SVP & General Counsel | SalePre-arranged (10b5-1) | 23,711 | $71.95 | $1.7M | 397,988 | |
traded | Frank Klein Chief Operations Officer | SalePre-arranged (10b5-1) | 36,768 | $71.95 | $2.6M | 1,089,437 | |
traded | Jon A. Olson Director | SalePre-arranged (10b5-1) | 15,205 | $91.30 | $1.4M | 352,530 | |
traded | Merline Saintil Director | SalePre-arranged (10b5-1) | 108,500 | $86.97 | $9.4M | 280,029 | |
traded | Frank Klein Chief Operations Officer | SalePre-arranged (10b5-1) | 100,000 | $72.95 | $7.3M | 1,257,887 | |
traded | Adam C. Spice Chief Financial Officer | SalePre-arranged (10b5-1) | 1,365,665 | $75.50 | $103.1M | 2,515,490 | |
traded | Edward H. Frank Director | Sale | 2,500 | $77.39 | $193.5K | 142,504 | |
traded | Nina Armagno Director | SalePre-arranged (10b5-1) | 27,314 | $68.21 | $1.9M | 108,940 | |
traded | Jon A. Olson Director | SalePre-arranged (10b5-1) | 15,000 | $68.18 | $1.0M | 374,935 | |
traded | Merline Saintil Director | SalePre-arranged (10b5-1) | 5,000 | $65.00 | $325.0K | 388,529 | |
traded | Merline Saintil Director | SalePre-arranged (10b5-1) | 5,000 | $54.46 | $272.3K | 393,729 | |
traded | Merline Saintil Director | Sale | 15,000 | $65.00 | $975.0K | 398,529 | |
traded | Peter Beck CEO | SalePre-arranged (10b5-1) | 2,500,000 | $56.44 | $141.1M | 191,542 | |
traded | Merline Saintil Director | Sale | 10,000 | $48.00 | $480.0K | 413,529 | |
traded | Arjun Kampani SVP General Counsel & | SalePre-arranged (10b5-1) | 10,554 | $42.08 | $444.1K | 451,508 | |
traded | Frank Klein Chief Operations Officer | SalePre-arranged (10b5-1) | 4,736 | $42.08 | $199.3K | 1,269,487 | |
traded | Jon A. Olson Director | Sale | 60,400 | $45.02 | $2.7M | 375,835 |
GET /stocks/filings/vX/form-4?tickers=RKLB&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"RKLB"
],
"issuer_cik": "0001819994",
"owner_cik": "0001509421",
"accession_number": "0002001011-26-000143",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "Rocket Lab Corp",
"issuer_trading_symbol": "RKLB",
"owner_name": "Spice Adam C.",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 39669,
"transaction_price_per_share": 70.2827,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1256455,
"transaction_value": 2788044.4263000004,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 03, 2026."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $69.5300 to $70.5200. The Reporting Person undertakes to provide the Registrant, any securityholder of the Registrant, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
}
]
},
{
"tickers": [
"RKLB"
],
"issuer_cik": "0001819994",
"owner_cik": "0001509421",
"accession_number": "0002001011-26-000143",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "Rocket Lab Corp",
"issuer_trading_symbol": "RKLB",
"owner_name": "Spice Adam C.",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 85288,
"transaction_price_per_share": 70.8922,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1171167,
"transaction_value": 6046253.953600001,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents the sale of shares which occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 03, 2026."
},
{
"id": "F3",
"description": "The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $70.5300 to $71.5200. The Reporting Person undertakes to provide the Registrant, any securityholder of the Registrant, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 98 records
- Option exercises3 records
- Tax withholding (sold to cover)71 records
- Grants and awards10 records
- Gifts13 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has the Rocket Lab Corporation's CEO sold stock?
Yes. Peter Beck (CEO) sold 5,775,779 shares ($427.5M) between Dec 2025 and Jul 2026, all under a pre-arranged 10b5-1 plan.
How current is RKLB’s insider data?
These are RKLB Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
Build with AI
Track RKLB insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for RKLB every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.