Quick Takeaways
- BKSY - BlackSky Technology Inc. has 16 insiders with reported activity on this page.
- Net insider value flow over the last year: -$3,767,410.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 16 Insiders of BlackSky Technology Inc.
- Symbol
- BKSY, BKSY-WT on NYSE
- Location
- Herndon, VA
What Changed
- Buy value: ; sell value: $3,767,409.
- Net share flow: -211,995.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$3,767,410.
Buys
$0
Shares: 0
Insiders: 0
Sells
$3,767,410
Shares: 211,995
Insiders: 4
Net
-$3,767,410
Shares: -211,995
Insiders: -4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 37,416 | $0 | $721,006 | -$721,006 |
| 6-9 | 0 | 174,579 | $0 | $3,046,404 | -$3,046,404 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
BlackSky Technology Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Brian E. O'Toole | CEO and President, Director | $26,292,078 | -$1,389,478 | -5% | Mixed | 10 Mar 2026 |
| William D. Porteous | Director | $14,956,236 | Mixed | 31 Mar 2026 | ||
| Henry Edward Dubois | Chief Financial Officer | $11,764,757 | -$1,323,542 | -10% | Mixed | 10 Mar 2026 |
| Mithril GP LP | 10%+ Owner | $11,043,476 | Mixed | 09 Sep 2021 | ||
| Jonathan Z. Cohen | Former Co-Chairman | $10,594,375 | Mixed | 09 Sep 2021 | ||
| Christiana L. Lin | General Counsel & CAO | $10,304,203 | -$1,016,453 | -9% | Mixed | 10 Mar 2026 |
| David DiDomenico | Director | $3,790,764 | Mixed | 11 Sep 2025 | ||
| Brian G. Daum | Chief Financial Officer | $1,908,527 | Mixed | 09 Sep 2021 | ||
| James R. Tolonen | Director | $1,444,518 | Mixed | 31 Mar 2026 | ||
| Susan M. Gordon | Director | $1,433,887 | Mixed | 31 Mar 2026 | ||
| Magid M. Abraham | Director | $1,215,881 | Mixed | 31 Mar 2026 | ||
| Timothy M. Harvey | Director | $1,062,139 | Mixed | 11 Sep 2025 | ||
| Tracy Ward | SVP & Controller | $976,927 | -$37,936 | -3.7% | Mixed | 11 Mar 2026 |
| Johan G. Broekhuysen | Chief Financial Officer | $604,536 | Mixed | 25 Feb 2022 | ||
| JANA PARTNERS LLC | Other* | Mixed | 09 Jun 2023 | |||
| SEAHAWK SPV INVESTMENT LLC | 10%+ Owner | Mixed | 09 Sep 2021 |
Top shareholders of BlackSky Technology Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.5%
from 13D/G
|
2,541,547
|
$63,945,323 | — | 31 Mar 2026 | |
| Mithril LP |
13D/G
|
Ajay Royan |
6.6%
|
2,328,503
|
$54,510,255 | $0 | 07 Aug 2025 | |
| Bank of New York Mellon Corp |
13D/G
13F
|
Company |
5.2%
|
1,918,084
|
$48,258,993 | -$3,886,188 | 31 Mar 2026 | |
| AWM Investment Company, Inc. |
13D/G
13F
|
Company |
4.8%
|
1,725,610
|
$44,192,872 | -$12,403,333 | 31 Dec 2025 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
3.6%
|
1,339,167
|
$33,693,442 | — | 31 Mar 2026 | |
| Cercano Management LLC |
13F
|
Company |
3.4%
|
1,243,976
|
$31,298,436 | — | 31 Mar 2026 | |
| Brian E. O'Toole |
3/4/5
|
CEO and President, Director |
—
mixed-class rows
|
1,366,022
mixed-class rows
|
$26,292,078 | -$1,389,478 | 10 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
2.8%
|
1,028,305
|
$25,872,154 | — | 31 Mar 2026 | |
| Daiwa Securities Group Inc. |
13F
|
Company |
2.4%
|
874,389
|
$21,999,627 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2%
|
744,715
|
$18,741,594 | — | 31 Mar 2026 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
1.8%
|
661,105
|
$16,633,000 | — | 31 Mar 2026 | |
| LBP AM SA |
13F
|
Company |
1.7%
|
637,910
|
$16,049,816 | — | 31 Mar 2026 | |
| William D. Porteous |
3/4/5
|
Director |
2.2%
|
797,666
|
$14,956,236 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.5%
|
544,676
|
$13,704,048 | — | 31 Mar 2026 | |
| Mitsubishi UFJ Asset Management Co., Ltd. |
13F
|
Company |
1.4%
|
523,251
|
$13,164,995 | — | 31 Mar 2026 | |
| Henry Edward Dubois |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
706,503
mixed-class rows
|
$11,764,757 | -$1,323,542 | 10 Mar 2026 | |
| Nantahala Capital Management, LLC |
13D/G
|
— |
4.5%
|
1,377,060
|
$11,663,698 | -$9,087,802 | 31 Dec 2024 | |
| Mithril GP LP |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
8,241,400
|
$11,043,476 | — | 09 Sep 2021 | |
| Jonathan Z. Cohen |
3/4/5
|
Former Co-Chairman |
—
mixed-class rows
|
16,231,250
mixed-class rows
|
$10,594,375 | — | 09 Sep 2021 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
1.1%
|
419,857
|
$10,563,602 | — | 31 Mar 2026 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
1.1%
|
410,096
|
$10,318,016 | — | 31 Mar 2026 | |
| Christiana L. Lin |
3/4/5
|
General Counsel & CAO |
—
mixed-class rows
|
615,245
mixed-class rows
|
$10,304,203 | -$1,016,453 | 10 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
1.1%
|
397,109
|
$9,991,263 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.98%
|
360,861
|
$9,079,271 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.94%
|
346,013
|
$8,705,687 | — | 31 Mar 2026 | |
| LORD, ABBETT & CO. LLC |
13F
|
Company |
0.88%
|
324,616
|
$8,167,000 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.92%
|
341,093
|
$7,613,397 | — | 31 Mar 2026 | |
| WASATCH ADVISORS LP |
13F
|
Company |
0.78%
|
285,883
|
$7,192,816 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
0.76%
|
279,193
|
$7,024,496 | — | 31 Mar 2026 | |
| Penserra Capital Management LLC |
13F
|
Company |
0.72%
|
264,682
|
$6,658,000 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.7%
|
258,634
|
$6,507,232 | — | 31 Mar 2026 | |
| Jump Financial, LLC |
13F
|
Company |
0.68%
|
252,300
|
$6,347,868 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.68%
|
251,840
|
$6,336,294 | — | 31 Mar 2026 | |
| EverSource Wealth Advisors, LLC |
13F
|
Company |
0.32%
|
118,021
|
$6,220,198 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.59%
|
216,401
|
$5,444,649 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
0.57%
|
211,483
|
$5,320,912 | — | 31 Mar 2026 | |
| OPPENHEIMER & CO INC |
13F
|
Company |
0.54%
|
200,869
|
$5,053,864 | — | 31 Mar 2026 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.52%
|
192,327
|
$4,838,947 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.5%
|
184,982
|
$4,654,147 | — | 31 Mar 2026 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.48%
|
176,250
|
$4,434,450 | — | 31 Mar 2026 | |
| Patriot Financial Group Insurance Agency, LLC |
13F
|
Company |
0.46%
|
170,618
|
$4,292,748 | — | 31 Mar 2026 | |
| HRT FINANCIAL LP |
13F
|
Company |
0.45%
|
166,275
|
$4,183,000 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.44%
|
163,911
|
$4,124,001 | — | 31 Mar 2026 | |
| David DiDomenico |
3/4/5
|
Director |
0.56%
|
205,017
|
$3,790,764 | — | 11 Sep 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.44%
|
162,996
|
$3,571,242 | — | 31 Mar 2026 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
0.37%
|
136,104
|
$3,424,377 | — | 31 Mar 2026 | |
| Beacon Pointe Advisors, LLC |
13F
|
Company |
0.33%
|
121,136
|
$3,047,782 | — | 31 Mar 2026 | |
| Defiance ETFs, LLC |
13F
|
Company |
0.28%
|
102,564
|
$2,580,510 | — | 31 Mar 2026 | |
| Walleye Capital LLC |
13D/G
|
— |
0.8%
|
230,572
|
$1,952,949 | $0 | 30 Sep 2024 | |
| Brian G. Daum |
3/4/5
|
Chief Financial Officer |
—
class O/S missing
|
1,424,274
|
$1,908,527 | — | 09 Sep 2021 |
Recent Insider Transactions by Companies or Individuals for BlackSky Technology Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Susan M. Gordon | BKSY | Class A Common Stock | Award | 1.18% | 894 | 76,474 | 31 Mar 2026 | Direct | ||
| James R. Tolonen | BKSY | Class A Common Stock | Award | 1.17% | 894 | 77,041 | 31 Mar 2026 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 1.16% | 894 | 77,785 | 31 Mar 2026 | Direct | ||
| Magid M. Abraham | BKSY | Class A Common Stock | Award | 1.4% | 894 | 64,847 | 31 Mar 2026 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Tax liability | -2.53% | -24,999 | 963,522 | 11 Mar 2026 | Direct | ||
| Christiana L. Lin | BKSY | Class A Common Stock | Tax liability | -3.49% | -13,741 | 379,817 | 11 Mar 2026 | Direct | ||
| Henry Edward Dubois | BKSY | Class A Common Stock | Tax liability | -5.08% | -23,551 | 439,822 | 11 Mar 2026 | Direct | ||
| Tracy Ward | BKSY | Class A Common Stock | Tax liability | -1.84% | -803 | 42,923 | 11 Mar 2026 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Award | 19.9% | 191,666 | 1,155,188 | 10 Mar 2026 | Direct | ||
| Christiana L. Lin | BKSY | Class A Common Stock | Award | 19.2% | 72,916 | 452,733 | 10 Mar 2026 | Direct | ||
| Henry Edward Dubois | BKSY | Class A Common Stock | Award | 17.5% | 77,083 | 516,905 | 10 Mar 2026 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 1.59% | 1,200 | 76,891 | 31 Dec 2025 | Direct | ||
| Magid M. Abraham | BKSY | Class A Common Stock | Award | 1.91% | 1,200 | 63,953 | 31 Dec 2025 | Direct | ||
| James R. Tolonen | BKSY | Class A Common Stock | Award | 1.6% | 1,200 | 76,147 | 31 Dec 2025 | Direct | ||
| Susan M. Gordon | BKSY | Class A Common Stock | Award | 1.61% | 1,200 | 75,580 | 31 Dec 2025 | Direct | ||
| Tracy Ward | BKSY | Class A Common Stock | Sale | -1.58% | $13,489 | $19.27 | -700 | 43,726 | 12 Dec 2025 | Direct |
| Christiana L. Lin | BKSY | Class A Common Stock | Sale | -2.57% | $200,177 | $19.27 | -10,388 | 393,558 | 12 Dec 2025 | Direct |
| Henry Edward Dubois | BKSY | Class A Common Stock | Sale | -2.71% | $248,814 | $19.27 | -12,912 | 463,373 | 12 Dec 2025 | Direct |
| Brian E. O'Toole | BKSY | Class A Common Stock | Sale | -1.34% | $258,526 | $19.27 | -13,416 | 988,521 | 12 Dec 2025 | Direct |
| James R. Tolonen | BKSY | Class A Common Stock | Award | 1.01% | 750 | 74,947 | 10 Dec 2025 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 2.02% | 1,500 | 75,691 | 10 Dec 2025 | Direct | ||
| James R. Tolonen | BKSY | Class A Common Stock | Award | 1.53% | 1,116 | 74,197 | 30 Sep 2025 | Direct | ||
| Magid M. Abraham | BKSY | Class A Common Stock | Award | 1.81% | 1,116 | 62,753 | 30 Sep 2025 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 1.53% | 1,116 | 74,191 | 30 Sep 2025 | Direct | ||
| Susan M. Gordon | BKSY | Class A Common Stock | Award | 1.52% | 1,116 | 74,380 | 30 Sep 2025 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Award | 33.2% | 250,000 | 1,001,937 | 15 Sep 2025 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Award | 33.3% | 250,000 | 1,000,164 | 15 Sep 2025 | Direct | ||
| Tracy Ward | BKSY | Class A Common Stock | Sale | -1.51% | $11,883 | $17.45 | -681 | 44,426 | 12 Sep 2025 | Direct |
| Christiana L. Lin | BKSY | Class A Common Stock | Sale | -5.33% | $396,848 | $17.45 | -22,742 | 403,946 | 12 Sep 2025 | Direct |
| Henry Edward Dubois | BKSY | Class A Common Stock | Sale | -5.91% | $522,505 | $17.45 | -29,943 | 476,285 | 12 Sep 2025 | Direct |
| Brian E. O'Toole | BKSY | Class A Common Stock | Sale | -4.02% | $550,007 | $17.45 | -31,519 | 751,937 | 12 Sep 2025 | Direct |
| Timothy M. Harvey | BKSY | Class A Common Stock | Award | 17.7% | 8,625 | 57,444 | 11 Sep 2025 | Direct | ||
| James R. Tolonen | BKSY | Class A Common Stock | Award | 13.4% | 8,625 | 73,081 | 11 Sep 2025 | Direct | ||
| Susan M. Gordon | BKSY | Class A Common Stock | Award | 13.3% | 8,625 | 73,264 | 11 Sep 2025 | Direct | ||
| David DiDomenico | BKSY | Class A Common Stock | Award | 5.24% | 8,625 | 173,290 | 11 Sep 2025 | Direct | ||
| Magid M. Abraham | BKSY | Class A Common Stock | Award | 16.3% | 8,625 | 61,637 | 11 Sep 2025 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 13.4% | 8,625 | 73,075 | 11 Sep 2025 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Sale | -4.25% | $580,945 | $17.45 | -33,292 | 750,164 | 10 Sep 2025 | Direct |
| Henry Edward Dubois | BKSY | Class A Common Stock | Sale | -6.25% | $552,223 | $17.45 | -31,646 | 474,582 | 10 Sep 2025 | Direct |
| Christiana L. Lin | BKSY | Class A Common Stock | Sale | -5.63% | $419,428 | $17.45 | -24,036 | 402,652 | 10 Sep 2025 | Direct |
| Tracy Ward | BKSY | Class A Common Stock | Sale | -1.6% | $12,564 | $17.45 | -720 | 44,387 | 10 Sep 2025 | Direct |
| Susan M. Gordon | BKSY | Class A Common Stock | Award | 1.72% | 1,093 | 64,639 | 30 Jun 2025 | Direct | ||
| William D. Porteous | BKSY | Class A Common Stock | Award | 1.73% | 1,093 | 64,450 | 30 Jun 2025 | Direct | ||
| Magid M. Abraham | BKSY | Class A Common Stock | Award | 2.11% | 1,093 | 53,012 | 30 Jun 2025 | Direct | ||
| James R. Tolonen | BKSY | Class A Common Stock | Award | 1.72% | 1,093 | 64,456 | 30 Jun 2025 | Direct | ||
| Tracy Ward | BKSY | Class A Common Stock | Options Exercise | 6% | 2,554 | 45,107 | 16 Jun 2025 | Direct | ||
| Tracy Ward | BKSY | Class A Common Stock | Tax liability | -1.96% | -683 | 34,146 | 10 Jun 2025 | Direct | ||
| Christiana L. Lin | BKSY | Class A Common Stock | Tax liability | -0.94% | -4,042 | 426,688 | 10 Jun 2025 | Direct | ||
| Henry Edward Dubois | BKSY | Class A Common Stock | Tax liability | -1.55% | -7,839 | 499,321 | 10 Jun 2025 | Direct | ||
| Brian E. O'Toole | BKSY | Class A Common Stock | Tax liability | -0.88% | -6,935 | 783,456 | 10 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.