SEC Form 4
BlackSky Technology Inc. (BKSY) insider trading
In the 12 months to Oct 26, 2026, 4 BKSY insiders reported open-market sales of $5.7M across 18 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $5.7M
- 18 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 8 of 18
- $1.7M of $5.7M sold (30%)
Who traded BKSY, and when
- Sale
- Sale, pre-arranged (10b5-1)
BKSY daily close from Oct 27, 2025 to Oct 26, 2026, between $13.14 and $51.63, last $18.13. 18 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Brian E. O'Toole, CEO and President: sold $3.2M across 6 filings, first filed Dec 12, 2025, last Oct 22, 2026. Henry Edward Dubois, Chief Financial Officer: sold $1.3M across 6 filings, first filed Dec 12, 2025, last Oct 22, 2026. Christiana L. Lin, General Counsel & CAO: sold $1.1M across 5 filings, first filed Dec 12, 2025, last Oct 22, 2026. Tracy Ward, SVP & Controller: sold $13.5K across 1 filing, first filed Dec 12, 2025, last Dec 12, 2025.
Largest mark · tap a row for others
Brian E. O'Toole · CEO and President
Filing 1 of 2 within a week · $1,615,666 total
Sale $436,600
20,000 shares at $21.83 avg
Filed Sep 10, 2026 · traded Sep 9
Pre-arranged (10b5-1) · close on filing date $20.75
Brian E. O'Toole · CEO and President
CEO and President
$3.2M soldHenry Edward Dubois · Chief Financial Officer
Chief Financial Officer
$1.3M soldChristiana L. Lin · General Counsel & CAO
General Counsel & CAO
$1.1M soldTracy Ward · SVP & Controller
SVP & Controller
$13.5K soldOpen-market trades
18 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Brian E. O'Toole | CEO and President | $3.2M | — | 6 | 39% of sales | |
| Henry Edward Dubois | Chief Financial Officer | $1.3M | — | 6 | 19% of sales | |
| Christiana L. Lin | General Counsel & CAO | $1.1M | — | 5 | 21% of sales | |
| Tracy Ward | SVP & Controller | $13.5K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Henry Edward Dubois Chief Financial Officer | SalePre-arranged (10b5-1) | 4,000 | $16.85 | $67.4K | 474,931 | |
traded | Christiana L. Lin General Counsel & CAO | SalePre-arranged (10b5-1) | 6,000 | $16.86 | $101.2K | 415,680 | |
traded | Brian E. O'Toole CEO and President | SalePre-arranged (10b5-1) | 20,000 | $16.86 | $337.2K | 1,023,396 | |
traded | Henry Edward Dubois Chief Financial Officer | SalePre-arranged (10b5-1) | 4,000 | $22.97 | $91.9K | 478,931 | |
traded | Christiana L. Lin General Counsel & CAO | SalePre-arranged (10b5-1) | 6,000 | $23.10 | $138.6K | 421,680 | |
traded | Brian E. O'Toole CEO and President | SalePre-arranged (10b5-1) | 20,000 | $22.88 | $457.6K | 1,043,396 | |
traded | Henry Edward Dubois Chief Financial Officer | Sale | 15,225 | $20.95 | $319.0K | 482,931 | |
traded | Christiana L. Lin General Counsel & CAO | Sale | 13,052 | $20.95 | $273.4K | 427,680 | |
traded | Brian E. O'Toole CEO and President | Sale | 56,280 | $20.95 | $1.2M | 1,063,396 | |
traded | Brian E. O'Toole CEO and President | SalePre-arranged (10b5-1) | 20,000 | $21.83 | $436.6K | 1,119,676 | |
traded | Henry Edward Dubois Chief Financial Officer | SalePre-arranged (10b5-1) | 4,000 | $23.78 | $95.1K | 498,156 | |
traded | Christiana L. Lin General Counsel & CAO | Sale | 12,001 | $34.10 | $409.2K | 440,732 | |
traded | Henry Edward Dubois Chief Financial Officer | Sale | 14,749 | $34.10 | $502.9K | 502,156 | |
traded | Brian E. O'Toole CEO and President | Sale | 15,512 | $34.10 | $529.0K | 1,139,676 | |
traded | Brian E. O'Toole CEO and President | Sale | 13,416 | $19.27 | $258.5K | 988,521 | |
traded | Henry Edward Dubois Chief Financial Officer | Sale | 12,912 | $19.27 | $248.8K | 463,373 | |
traded | Christiana L. Lin General Counsel & CAO | Sale | 10,388 | $19.27 | $200.2K | 393,558 | |
traded | Tracy Ward SVP & Controller | Sale | 700 | $19.27 | $13.5K | 43,726 |
GET /stocks/filings/vX/form-4?tickers=BKSY&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"BKSY"
],
"issuer_cik": "0001753539",
"owner_cik": "0001400954",
"accession_number": "0001400954-26-000013",
"form_type": "4",
"filing_date": "2026-10-22",
"period_of_report": "2026-10-20",
"issuer_name": "BlackSky Technology Inc.",
"issuer_trading_symbol": "BKSY",
"owner_name": "Lin Christiana L",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "General Counsel & CAO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-20",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 6000,
"transaction_price_per_share": 16.86,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 415680,
"transaction_value": 101160,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in June 2026."
},
{
"id": "F2",
"description": "This transaction was executed in multiple trades at prices ranging from $16.57 to 17.33. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to\nprovide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."
},
{
"id": "F3",
"description": "Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU."
}
]
},
{
"tickers": [
"BKSY"
],
"issuer_cik": "0001753539",
"owner_cik": "0001443092",
"accession_number": "0001753539-26-000149",
"form_type": "4",
"filing_date": "2026-10-22",
"period_of_report": "2026-10-20",
"issuer_name": "BlackSky Technology Inc.",
"issuer_trading_symbol": "BKSY",
"owner_name": "O'Toole Brian E",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CEO and President",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-20",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 20000,
"transaction_price_per_share": 16.86,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1023396,
"transaction_value": 337200,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in June 2026."
},
{
"id": "F2",
"description": "This transaction was executed in multiple trades at prices ranging from $16.54 to $17.32. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to\nprovide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected."
},
{
"id": "F3",
"description": "Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU."
}
]
}
]
}
// 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) · 31 records
- Tax withholding4 records
- Grants and awards27 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.
Frequently asked questions
Has BlackSky Technology Inc.'s CEO sold stock?
Yes. Brian E. O'Toole (CEO) sold 145,208 shares ($3.2M) between Dec 2025 and Oct 2026, $1.2M of it under a pre-arranged 10b5-1 plan.
How current is BKSY’s insider data?
These are BKSY 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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