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Porteous William D.

Disclosed activity across 2 companies

Tapewire entity
34497
SEC CIK
0001865965

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Bark, Inc.BARK · Entity 677210% ownerJune 01, 2021June 11, 2021
BlackSky Technology Inc.BKSY · Entity 5048DirectorSeptember 30, 2026October 02, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee Footnote3,955,108 Reported balance Holding disclosure · report date 2021-06-01 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 3,955,108

F1: These shares are held by RRE Leaders Fund, L.P ("RRE Leaders"). The general partner of RRE Leaders is RRE Leaders GP, LLC ("RRE Leaders GP"), and its managing members and officers are James D. Robinson IV, Stuart J. Ellman and William D. Porteous. Each of RRE Leaders GP and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 3, except to the extent of its or his pecuniary interest therein, if any.

Common StockSEC Table I · non-derivativeIndirectSee Footnote18,649,652 Reported balance Holding disclosure · report date 2021-06-01 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 18,649,652

F2: These shares are held by RRE Ventures V, L.P ("RRE V"). The general partner of RRE V is RRE Ventures GP V GP, LLC ("RRE Ventures GP") and its managing members and officers are James D. Robinson IV, Stuart J. Ellman and William D. Porteous. Each of RRE Ventures GP and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 3, except to the extent of its or his pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: These shares are held by RRE Leaders Fund, L.P ("RRE Leaders"). The general partner of RRE Leaders is RRE Leaders GP, LLC ("RRE Leaders GP"), and its managing members and officers are James D. Robinson IV, Stuart J. Ellman and William D. Porteous. Each of RRE Leaders GP and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 3, except to the extent of its or his pecuniary interest therein, if any.

F2: These shares are held by RRE Ventures V, L.P ("RRE V"). The general partner of RRE V is RRE Ventures GP V GP, LLC ("RRE Ventures GP") and its managing members and officers are James D. Robinson IV, Stuart J. Ellman and William D. Porteous. Each of RRE Ventures GP and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 3, except to the extent of its or his pecuniary interest therein, if any.

BlackSky Technology Inc.

Report date September 30, 2026 · Filed October 02, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect88,378 Reported balance After 2026-09-30 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-09-30 · Grant · Acquired 1,055 · Balance 88,378

F1: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2026.

F2: 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.

Class A Common StockSEC Table I · non-derivativeIndirectSee footnote719,881 Reported balance Holding disclosure · report date 2026-09-30 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 719,881

F3: These shares are held by RRE Ventures IV, L.P. ("Ventures IV"). The general partner of Ventures IV is RRE Ventures GP VI, LLC ("GP VI"). The managing members and officers of GP VI are James D. Robinson IV, Stuart J. Ellman, and William D. Porteous. Each of GP VI and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 4, except to the extent of its or his pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2026.

F2: 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.

F3: These shares are held by RRE Ventures IV, L.P. ("Ventures IV"). The general partner of Ventures IV is RRE Ventures GP VI, LLC ("GP VI"). The managing members and officers of GP VI are James D. Robinson IV, Stuart J. Ellman, and William D. Porteous. Each of GP VI and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 4, except to the extent of its or his pecuniary interest therein, if any.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 30, 2026 Filed Oct 2, 2026 00:32 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 1,055 $0.00 $0.00
Disclosure

SEC source: 0001865965-26-000010 · wk-form4_1790886763.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,378

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2026.

F2 · balance_after: 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.

Read SEC document
September 11, 2026 Filed Sep 14, 2026 20:38 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 8,733 $0.00 $0.00
Disclosure

SEC source: 0001865965-26-000008 · wk-form4_1789418286.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,323

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs are awarded in connection with the Company's Outside Director Compensation Policy and will vest in full upon the earlier of the one-year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders, in each case subject to the Reporting Person's continued service on the Issuer's board of directors through the applicable vesting date.

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June 30, 2026 Filed Jun 30, 2026 20:55 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 805 $0.00 $0.00
Disclosure

SEC source: 0001753539-26-000089 · wk-form4_1782852918.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,590

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended June 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on June 30, 2026.

F2 · balance_after: 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.

Read SEC document
March 31, 2026 Filed Apr 1, 2026 20:08 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 894 $0.00 $0.00
Disclosure

SEC source: 0001865965-26-000006 · wk-form4_1775074101.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,785

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended March 31, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on March 31, 2026.

F2 · balance_after: 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.

Read SEC document
December 31, 2025 Filed Jan 2, 2026 18:10 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 1,200 $0.00 $0.00
Disclosure

SEC source: 0001865965-26-000002 · wk-form4_1767377397.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,891

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended December 31, 2025. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on December 31, 2025.

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December 10, 2025 Filed Dec 10, 2025 21:06 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 1,500 $0.00 $0.00
Disclosure

SEC source: 0001753539-25-000114 · wk-form4_1765400757.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,691

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs are awarded in connection with a review conducted by the Company's Compensation Committee of Outside Director Compensation and will vest in full upon the earlier of (i) September 11, 2026 or (ii) the date of the next Annual Meeting following the Transaction Date, subject to the Outside Director remaining a Service Provider through such vesting date.

Read SEC document
September 30, 2025 Filed Oct 1, 2025 20:17 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 1,116 $0.00 $0.00
Disclosure

SEC source: 0001865965-25-000007 · wk-form4_1759349829.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,191

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2025. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2025.

Read SEC document
September 11, 2025 Filed Sep 11, 2025 20:42 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 8,625 $0.00 $0.00
Disclosure

SEC source: 0001865965-25-000005 · wk-form4_1757623340.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,075

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs are awarded in connection with the Company's Outside Director Compensation Policy and will vest in full upon the earlier of the one-year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders, in each case subject to the Reporting Person's continued service on the Issuer's board of directors through the applicable vesting date.

Read SEC document
June 30, 2025 Filed Jul 1, 2025 20:38 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 1,093 $0.00 $0.00
Disclosure

SEC source: 0001865965-25-000003 · wk-form4_1751402276.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,450

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended June 30, 2025. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on June 30, 2025.

Read SEC document
March 31, 2025 Filed Apr 1, 2025 21:36 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 2,910 $0.00 $0.00
Disclosure

SEC source: 0001753539-25-000038 · wk-form4_1743543394.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,357

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended March 31, 2025. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on March 31, 2025.

Read SEC document
December 31, 2024 Filed Dec 31, 2024 21:26 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 2,085 $0.00 $0.00
Disclosure

SEC source: 0001753539-24-000175 · wk-form4_1735680381.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,447

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended December 31, 2024. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on December 31, 2024.

Read SEC document
December 12, 2024 Filed Dec 16, 2024 21:14 UTC BlackSky Technology Inc. BKSY · Entity 5048 SaleClass A Common Stock 570 $10.65 $6,070.50
Disclosure

SEC source: 0001753539-24-000163 · wk-form4_1734383671.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,362

F1 · shares: Represents the number of shares intended to cover estimated end of year tax obligations in connection with the vesting of Restricted Stock Units (RSUs).

Read SEC document
September 30, 2024 Filed Oct 2, 2024 20:10 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 4,746 $0.00 $0.00
Disclosure

SEC source: 0001753539-24-000128 · wk-form4_1727899831.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,932

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2024. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2024.

F2 · balance_after: The reported number of shares has been adjusted to reflect the impact of the issuer's 1-for-8 reverse stock split completed on September 6, 2024.

Read SEC document
September 04, 2024 Filed Sep 6, 2024 20:09 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 135,135 $0.00 $0.00
Disclosure

SEC source: 0001753539-24-000108 · wk-form4_1725653360.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 433,526

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs are awarded in connection with the Company's Outside Director Compensation Policy and will vest in full upon the earlier of the one-year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders, in each case subject to the Reporting Person's continued service on the Issuer's board of directors through the applicable vesting date.

Read SEC document
June 30, 2024 Filed Jul 2, 2024 11:34 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 21,028 $0.00 $0.00
Disclosure

SEC source: 0001753539-24-000075 · wk-form4_1719920074.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 298,391

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended June 30, 2024. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on June 28, 2024.

Read SEC document
March 31, 2024 Filed Apr 1, 2024 21:03 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 16,544 $0.00 $0.00
Disclosure

SEC source: 0001753539-24-000042 · wk-form4_1712005416.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 277,363

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended March 31, 2024. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on March 29, 2024.

Read SEC document
December 31, 2023 Filed Jan 3, 2024 21:31 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 16,071 $0.00 $0.00
Disclosure

SEC source: 0001865965-24-000003 · wk-form4_1704317501.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,819

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended December 31, 2023. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on December 29, 2023.

Read SEC document
September 30, 2023 Filed Oct 3, 2023 22:23 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 19,230 $0.00 $0.00
Disclosure

SEC source: 0001865965-23-000005 · wk-form4_1696371808.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 244,748

F1 · shares: These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2023. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 29, 2023.

Read SEC document
September 08, 2023 Filed Sep 13, 2023 21:37 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 118,110 $0.00 $0.00
Disclosure

SEC source: 0001865965-23-000003 · wf-form4_169464106534148.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225,518

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock. The RSUs vest in full upon the earlier of the one-year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders, in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.

Read SEC document
September 09, 2022 Filed Sep 14, 2022 01:40 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 69,767 $0.00 $0.00
Disclosure

SEC source: 0001753539-22-000086 · wf-form4_166311964448409.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,408

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. The RSUs are granted pursuant to the BlackSky Technology Inc. 2021 Equity Incentive Plan which vest in full upon the earlier of the one (1) year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders and in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.

Read SEC document
December 21, 2021 Filed Dec 23, 2021 17:54 UTC BlackSky Technology Inc. BKSY · Entity 5048 GrantClass A Common Stock 37,641 $0.00 $0.00
Disclosure

SEC source: 0001753539-21-000023 · wf-form4_164028204467579.xml · nonDerivative · entry 1

Porteous William D. · CIK 0001865965 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,641

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. The restricted stock units are granted pursuant to the BlackSky Technology Inc. 2021 Equity Incentive Plan. The number of restricted stock units was calculated based on the closing price of a share of BlackSky Technology Inc.'s Class A Common Stock on the New York Stock Exchange on December 10, 2021. The restricted stock units will vest in three equal installments on each of December 10, 2022; December 10, 2023; and December 10, 2024, in each case subject to the Reporting Person remaining a services provider through the applicable vesting date.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.