BlackSky Technology Inc. (BKSY) has 17 known insider and institutional holders on record. The largest holder is LIM KOK SEONG with 27,500,000 shares. Other notable holders include LEE JIN HAN ALVIN and SEAHAWK SPV INVESTMENT LLC.
Over the last 12 months, insiders have made 51 transactions in BKSY stock — 30 buys (valued at $29.6K) and 12 sells (valued at $3.77M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
BKSY Insider Ownership
Top Holder
LIM KOK SEONG
27,500,000 shares
Buys (12 mo)
30
$29.6K value
Sells (12 mo)
12
$3.77M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Lim Kok Seong |
10 Percent Owner |
27,500,000 |
2015-07-02 |
|
| 2 |
Lee Jin Han Alvin |
10 Percent Owner |
27,500,000 |
2015-07-02 |
|
| 3 |
Seahawk Spv Investment Llc |
10 Percent Owner |
14,594,452 |
2021-09-23 |
|
| 4 |
Mithril Gp Lp |
10 Percent Owner |
8,241,400 |
2021-09-20 |
|
| 5 |
Jana Partners Llc |
Director |
2,950,908 |
2022-09-13 |
|
| 6 |
Daum Brian G. |
Chief Financial Officer |
1,424,274 |
2021-09-16 |
|
| 7 |
O'toole Brian E |
CEO and President |
1,155,188 |
2026-03-12 |
|
| 8 |
Dubois Henry Edward |
Chief Financial Officer |
516,905 |
2026-03-12 |
|
| 9 |
Lin Christiana L |
General Counsel & CAO |
452,733 |
2026-03-12 |
|
| 10 |
Broekhuysen Johan G |
Chief Financial Officer |
451,146 |
2022-02-28 |
|
| 11 |
Didomenico David |
Director |
173,290 |
2025-09-11 |
|
| 12 |
Porteous William D. |
Director |
77,785 |
2026-04-01 |
|
| 13 |
Tolonen James R |
Director |
77,041 |
2026-04-01 |
|
| 14 |
Gordon Susan M. |
Director |
76,474 |
2026-04-01 |
|
| 15 |
Abraham Magid M |
Director |
64,847 |
2026-04-01 |
|
| 16 |
Harvey Timothy M. |
Director |
57,444 |
2025-09-11 |
|
| 17 |
Ward Tracy |
SVP & Controller |
42,923 |
2026-03-12 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-31 |
Porteous William D. |
Director |
RSU Award |
894 |
- |
- |
| 2026-03-31 |
Gordon Susan M. |
Director |
RSU Award |
894 |
- |
- |
| 2026-03-31 |
Abraham Magid M |
Director |
RSU Award |
894 |
- |
- |
| 2026-03-31 |
Tolonen James R |
Director |
RSU Award |
894 |
- |
- |
| 2026-03-11 |
Ward Tracy |
SVP & Controller |
Tax Withholding of RSU |
803 |
$24.00 |
$19.27K |
| 2026-03-11 |
O'toole Brian E |
CEO and President |
Tax Withholding of RSU |
24,999 |
$24.00 |
$599.98K |
| 2026-03-10 |
O'toole Brian E |
CEO and President |
RSU Award |
191,666 |
- |
- |
| 2026-03-11 |
Lin Christiana L |
General Counsel & CAO |
Tax Withholding of RSU |
13,741 |
$24.00 |
$329.78K |
| 2026-03-10 |
Lin Christiana L |
General Counsel & CAO |
RSU Award |
72,916 |
- |
- |
| 2026-03-11 |
Dubois Henry Edward |
Chief Financial Officer |
Tax Withholding of RSU |
23,551 |
$24.00 |
$565.22K |
| 2026-03-10 |
Dubois Henry Edward |
Chief Financial Officer |
RSU Award |
77,083 |
- |
- |
| 2025-12-31 |
Porteous William D. |
Director |
RSU Award |
1,200 |
- |
- |
| 2025-12-31 |
Gordon Susan M. |
Director |
RSU Award |
1,200 |
- |
- |
| 2025-12-31 |
Abraham Magid M |
Director |
RSU Award |
1,200 |
- |
- |
| 2025-12-31 |
Tolonen James R |
Director |
RSU Award |
1,200 |
- |
- |
| 2025-12-12 |
Ward Tracy |
SVP & Controller |
Informative Sell |
700 |
$19.27 |
$13.49K |
| 2025-12-12 |
O'toole Brian E |
CEO and President |
Informative Sell |
13,416 |
$19.27 |
$258.53K |
| 2025-12-12 |
Lin Christiana L |
General Counsel & CAO |
Informative Sell |
10,388 |
$19.27 |
$200.18K |
| 2025-12-12 |
Dubois Henry Edward |
Chief Financial Officer |
Informative Sell |
12,912 |
$19.27 |
$248.81K |
| 2025-12-10 |
Porteous William D. |
Director |
RSU Award |
1,500 |
- |
- |
| 2025-12-10 |
Tolonen James R |
Director |
RSU Award |
750 |
- |
- |
| 2025-09-12 |
Ward Tracy |
SVP & Controller |
Informative Sell |
681 |
$17.45 |
$11.88K |
| 2025-09-15 |
O'toole Brian E |
CEO and President |
RSU Award |
250,000 |
- |
- |
| 2025-09-12 |
O'toole Brian E |
CEO and President |
Informative Sell |
31,519 |
$17.45 |
$550.01K |
| 2025-09-12 |
Lin Christiana L |
General Counsel & CAO |
Informative Sell |
22,742 |
$17.45 |
$396.85K |