William D. Porteous

CIK: 0001865965

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (7.1%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)13 (92.9%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

BKSY

BlackSky Technology Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (14 total)

BKSY
BlackSky Technology Inc.
Sep 30, 2026
Award(A)
Direct
1.1K shares-
BKSY
BlackSky Technology Inc.
Sep 11, 2026
Award(A)
Direct
8.7K shares-
BKSY
BlackSky Technology Inc.
Jun 30, 2026
Award(A)
Direct
805 shares-
BKSY
BlackSky Technology Inc.
Mar 31, 2026
Award(A)
Direct
894 shares-
BKSY
BlackSky Technology Inc.
Dec 31, 2025
Award(A)
Direct
1.2K shares-
BKSY
BlackSky Technology Inc.
Dec 10, 2025
Award(A)
Direct
1.5K shares-
BKSY
BlackSky Technology Inc.
Sep 30, 2025
Award(A)
Direct
1.1K shares-
BKSY
BlackSky Technology Inc.
Sep 11, 2025
Award(A)
Direct
8.6K shares-
BKSY
BlackSky Technology Inc.
Jun 30, 2025
Award(A)
Direct
1.1K shares-
BKSY
BlackSky Technology Inc.
Mar 31, 2025
Award(A)
Direct
2.9K shares-
BKSY
BlackSky Technology Inc.
Dec 31, 2024
Award(A)
Direct
2.1K shares-
BKSY
BlackSky Technology Inc.
Dec 12, 2024
Sale(S)
Direct
570 shares at avg. $10.65$6K
BKSY
BlackSky Technology Inc.
Sep 30, 2024
Award(A)
Direct
4.7K shares-
BKSY
BlackSky Technology Inc.
Sep 4, 2024
Award(A)
Direct
135.1K shares-

		Type	Shares	Price		Ownership
Sep 30, 2026	BKSY BlackSky Technology Inc.	Award(A)	1,055	-	$0	Direct
Sep 11, 2026	BKSY BlackSky Technology Inc.	Award(A)	8,733	-	$0	Direct
Jun 30, 2026	BKSY BlackSky Technology Inc.	Award(A)	805	-	$0	Direct
Mar 31, 2026	BKSY BlackSky Technology Inc.	Award(A)	894	-	$0	Direct
Dec 31, 2025	BKSY BlackSky Technology Inc.	Award(A)	1,200	-	$0	Direct
Dec 10, 2025	BKSY BlackSky Technology Inc.	Award(A)	1,500	-	-	Direct
Sep 30, 2025	BKSY BlackSky Technology Inc.	Award(A)	1,116	-	-	Direct
Sep 11, 2025	BKSY BlackSky Technology Inc.	Award(A)	8,625	-	-	Direct
Jun 30, 2025	BKSY BlackSky Technology Inc.	Award(A)	1,093	-	-	Direct
Mar 31, 2025	BKSY BlackSky Technology Inc.	Award(A)	2,910	-	-	Direct
Dec 31, 2024	BKSY BlackSky Technology Inc.	Award(A)	2,085	-	$0	Direct
Dec 12, 2024	BKSY BlackSky Technology Inc.	Sale(S)	570	$10.65	$6,071	Direct
Sep 30, 2024	BKSY BlackSky Technology Inc.	Award(A)	4,746	-	$0	Direct
Sep 4, 2024	BKSY BlackSky Technology Inc.	Award(A)	135,135	-	$0	Direct

1-14 of 14 transactions

About Porteous William D.

Porteous William D. (SEC CIK 0001865965) files insider reports with the SEC as Director of BlackSky Technology Inc. (BKSY).

Signal8 holds 14 ownership filings by Porteous William D., all Form 4s, filed between Sep 6, 2024 and Oct 1, 2026. Those filings report 14 transactions, from Sep 4, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Porteous William D.'s filings is in HERNDON, VA.

Recent filings by Porteous William D.

Sep 30, 2026: Grant or award of BKSY shares (Form 4, code A).
Sep 11, 2026: Grant or award of BKSY shares (Form 4, code A).
Jun 30, 2026: Grant or award of BKSY shares (Form 4, code A).
Mar 31, 2026: Grant or award of BKSY shares (Form 4, code A).
Dec 31, 2025: Grant or award of BKSY shares (Form 4, code A).

Other insiders filing for BlackSky Technology Inc. (BKSY)

Dubois Henry Edward, Chief Financial Officer
O'Toole Brian E, CEO and President
Lin Christiana L, General Counsel & CAO
Gordon Susan M., Director
TOLONEN JAMES R, Director
Abraham Magid M, Director

How to read Form 4 transaction codes