SEC Form 4
HawkEye 360, Inc. (HAWK) insider trading
In the 12 months to Oct 26, 2026, 3 HAWK insiders reported open-market sales of $2.5M across 3 filings; one director bought $390.0K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $2.5M
- 3 filings · 3 insiders
- Open-market purchases
- $390.0K
- 1 filing · Francis Alphonse Finelli, Director
- Pre-arranged sales (10b5-1)
- 2 of 3
- $1.7M of $2.5M sold (67%)
Who traded HAWK, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
HAWK daily close from May 7, 2026 to Oct 26, 2026, between $11.67 and $34.66, last $12.88. 3 sale and 1 purchase filings by 4 insiders, marked at their filing dates. John Sheldon Serafini, President and CEO: sold $1.4M across 1 filing, first filed Oct 2, 2026, last Oct 2, 2026. Arthur L. Money, Director: sold $820.5K across 1 filing, first filed Sep 15, 2026, last Sep 15, 2026. Francis Alphonse Finelli, Director: bought $390.0K across 1 filing, first filed May 28, 2026, last May 28, 2026. Michael S. Turner, Chief Legal Officer: sold $296.4K across 1 filing, first filed Sep 17, 2026, last Sep 17, 2026.
Largest mark · tap a row for others
John Sheldon Serafini · President and CEO
Sale $1,364,992
92,329 shares at $14.78 avg
Filed Oct 2, 2026 · traded Oct 1
Pre-arranged (10b5-1) · close on filing date $14.81
John Sheldon Serafini · President and CEO
President and CEO
$1.4M soldArthur L. Money · Director
Director
$820.5K soldFrancis Alphonse Finelli · Director
Director
$390.0K boughtMichael S. Turner · Chief Legal Officer
Chief Legal Officer
$296.4K soldOpen-market trades
4 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| John Sheldon Serafini | President and CEO | $1.4M | — | 1 | 100% of sales | |
| Arthur L. Money | Director | $820.5K | — | 1 | — | |
| Francis Alphonse Finelli | Director | — | $390.0K | 1 | — | |
| Michael S. Turner | Chief Legal Officer | $296.4K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | John Sheldon Serafini President and CEO | SalePre-arranged (10b5-1) | 92,329 | $14.78 | $1.4M | 554,972 | |
traded | Michael S. Turner Chief Legal Officer | SalePre-arranged (10b5-1) | 18,256 | $16.24 | $296.4K | 179,521 | |
traded | Arthur L. Money Director | Sale | 50,000 | $16.41 | $820.5K | 54,545 | |
traded | Francis Alphonse Finelli Director | Purchase | 15,000 | $26.00 | $390.0K | Multiple accounts |
GET /stocks/filings/vX/form-4?tickers=HAWK&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"HAWK"
],
"issuer_cik": "0001750704",
"owner_cik": "0002127288",
"accession_number": "0002127288-26-000008",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "HawkEye 360, Inc.",
"issuer_trading_symbol": "HAWK",
"owner_name": "Serafini John Sheldon",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President and CEO",
"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": 92329,
"transaction_price_per_share": 14.784,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 554972,
"transaction_value": 1364991.936,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents shares exercised and sold pursuant to a Rule 10b5-1 Plan adopted on May 21, 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 $14.59 to $15.14 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon\nrequest, full information regarding the number of shares sold each separate price within the range set forth in this footnote."
}
]
},
{
"tickers": [
"HAWK"
],
"issuer_cik": "0001750704",
"owner_cik": "0001836524",
"accession_number": "0001836524-26-000016",
"form_type": "4",
"filing_date": "2026-09-17",
"period_of_report": "2026-09-15",
"issuer_name": "HawkEye 360, Inc.",
"issuer_trading_symbol": "HAWK",
"owner_name": "Turner Michael S.",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Legal Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-09-16",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 18256,
"transaction_price_per_share": 16.2368,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 179521,
"transaction_value": 296419.0208,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "Represents shares sold pursuant to a Rule 10b5-1 Plan adopted on May 21, 2026."
},
{
"id": "F4",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.02 to $16.52 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold 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) · 74 records
- Option exercises28 records
- Tax withholding (sold to cover)2 records
- Other44 records
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.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has HawkEye 360, Inc.'s CEO sold stock?
Yes. John Sheldon Serafini (CEO) sold 92,329 shares ($1.4M) in Oct 2026, all under a pre-arranged 10b5-1 plan.
How current is HAWK’s insider data?
These are HAWK 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.
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Track HAWK 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 HAWK 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.
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