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person · Reporting owner

NELSON BARBARA H

Disclosed activity across 2 companies

Tapewire entity
42774
SEC CIK
0001204922

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Backblaze, Inc.BLZE · Entity 5087DirectorMay 26, 2026June 01, 2026
GSI TECHNOLOGY INCGSIT · Entity 6309DirectorAugust 14, 2024August 15, 2024

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.

Backblaze, Inc.

Report date May 26, 2026 · Filed June 01, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect106,862 Reported balance After 2026-05-26 transaction · row 1
1 source row

Row 1 · 2026-05-26 · Grant · Acquired 19,306 · Balance 106,862

F1: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of the date of grant, provided that the Reporting Person remains in continuous service through such vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of the date of grant, provided that the Reporting Person remains in continuous service through such vesting date.

GSI TECHNOLOGY INC

Report date August 14, 2024 · Filed August 15, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Ending reported balance After 2024-08-15 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2024-08-14 · Exercise / conversion · Acquired 9,779 · Balance 9,779

Row 2 · 2024-08-14 · Sale · Disposed 9,779 · Balance 0

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.20 to $2.28, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

Row 3 · 2024-08-15 · Exercise / conversion · Acquired 7,236 · Balance 7,236

Row 4 · 2024-08-15 · Sale · Disposed 7,236 · Balance 0

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.87 · Expires 2032-10-31Direct7,236 Reported balance After 2024-08-14 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-08-14 · Exercise / conversion · Disposed 9,779 · Balance 7,236

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.87 · Expires 2032-10-31Direct0 Reported balance After 2024-08-15 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-08-15 · Exercise / conversion · Disposed 7,236 · Balance 0

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.20 to $2.28, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

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
May 26, 2026 Filed Jun 1, 2026 20:12 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 19,306 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-039496 · wk-form4_1780344744.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,862

F1 · shares: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of the date of grant, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
May 27, 2025 Filed May 29, 2025 23:20 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 25,210 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-028452 · wk-form4_1748560847.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,556

F1 · shares: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was automatically granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU, in connection with the Issuer's Annual Meeting of Stockholders. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of May 27, 2025, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
August 16, 2024 Filed Aug 19, 2024 20:52 UTC Backblaze, Inc. BLZE · Entity 5087 SaleClass A Common Stock 16,000 $6.79 $108,608.00
Disclosure

SEC source: 0001628280-24-037755 · wk-form4_1724100749.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,346

Read SEC document
August 15, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionStock Option (right to buy) · Derivative 7,236 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · derivative · entry 6

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,236 shares

Expires 2032-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 15, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 SaleCommon Stock 7,236 $2.30 $16,642.80
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · nonDerivative · entry 4

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Read SEC document
August 15, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionCommon Stock 7,236 $1.87 $13,531.32
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · nonDerivative · entry 3

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,236

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 14, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionStock Option (right to buy) · Derivative 9,779 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · derivative · entry 5

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,236

Underlying: Common Stock · 9,779 shares

Expires 2032-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 14, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 SaleCommon Stock 9,779 $2.22 $21,670.26
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · nonDerivative · entry 2

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.20 to $2.28, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

Read SEC document
August 14, 2024 Filed Aug 15, 2024 23:37 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionCommon Stock 9,779 $1.87 $18,286.73
Disclosure

SEC source: 0001062993-24-015212 · form4.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,779

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 01, 2024 Filed Aug 3, 2024 00:07 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionStock Option (right to buy) · Derivative 100 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-24-014403 · form4.xml · derivative · entry 3

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,015

Underlying: Common Stock · 100 shares

Expires 2032-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 01, 2024 Filed Aug 3, 2024 00:07 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 SaleCommon Stock 100 $2.81 $280.50
Disclosure

SEC source: 0001062993-24-014403 · form4.xml · nonDerivative · entry 2

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Read SEC document
August 01, 2024 Filed Aug 3, 2024 00:07 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionCommon Stock 100 $1.87 $187.00
Disclosure

SEC source: 0001062993-24-014403 · form4.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
July 31, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionStock Option (right to buy) · Derivative 4,184 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · derivative · entry 6

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,115

Underlying: Common Stock · 4,184 shares

Expires 2032-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
July 31, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 SaleCommon Stock 4,184 $2.81 $11,745.32
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · nonDerivative · entry 4

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.80 to $2.83, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

Read SEC document
July 31, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionCommon Stock 4,184 $1.87 $7,824.08
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · nonDerivative · entry 3

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,184

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
July 30, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionStock Option (right to buy) · Derivative 5,706 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · derivative · entry 5

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,299

Underlying: Common Stock · 5,706 shares

Expires 2032-10-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
July 30, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 SaleCommon Stock 5,706 $2.82 $16,062.39
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · nonDerivative · entry 2

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.80 to $2.83, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

Read SEC document
July 30, 2024 Filed Jul 31, 2024 22:56 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 Exercise / conversionCommon Stock 5,706 $1.87 $10,670.22
Disclosure

SEC source: 0001062993-24-014266 · form4.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,706

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 16, 2024 Filed May 20, 2024 20:20 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 20,604 $0.00 $0.00
Disclosure

SEC source: 0001628280-24-024357 · wk-form4_1716236412.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,346

F1 · shares: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was automatically granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU, in connection with the Issuer's Annual Meeting of Stockholders. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of May 16, 2024, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
October 30, 2023 Filed Oct 31, 2023 20:32 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 GrantStock Option (right to buy) · Derivative 28,795 $0.00 Strike: $1.91 $0.00
Disclosure

SEC source: 0001062993-23-019899 · form4.xml · derivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,795

Underlying: Common Stock · 28,795 shares

Expires 2033-10-30

F1 · derivative.exercise_date: Subject to the Reporting Person's continued service to the Issuer, the option vests and becomes 100% exercisable on August 15, 2024.

F2 · derivative.exercise_date: Reporting Person shall vest in 100% of the unvested and outstanding portion of the option immediately prior to, but contingent upon, the consummation of a Change in Control prior to August 15, 2024.

Read SEC document
June 05, 2023 Filed Jun 7, 2023 21:26 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 35,211 $0.00 $0.00
Disclosure

SEC source: 0001462056-23-000160 · wk-form4_1686173204.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,742

F1 · shares: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of June 5, 2023, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
October 31, 2022 Filed Nov 2, 2022 00:02 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 GrantStock Option (right to buy) · Derivative 27,005 $0.00 Strike: $1.87 $0.00
Disclosure

SEC source: 0001062993-22-021396 · form4.xml · derivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,005

Underlying: Common Stock · 27,005 shares

Expires 2032-10-31

F1 · derivative.exercise_date: Subject to the Reporting Person's continued service to the Issuer, the option vests and becomes 100% exercisable on August 15, 2023.

F2 · derivative.exercise_date: Reporting Person shall vest in 100% of the unvested and outstanding portion of the option immediately prior to, but contingent upon, the consummation of a Change in Control prior to August 15, 2023.

Read SEC document
June 02, 2022 Filed Jun 6, 2022 23:39 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 13,156 $0.00 $0.00
Disclosure

SEC source: 0001628280-22-016386 · wf-form4_165455876489907.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,531

F1 · shares: Pursuant to the Issuer's Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the Issuer's next Annual Meeting of Stockholders, or (B) the one-year anniversary of June 2, 2022, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
November 12, 2021 Filed Nov 16, 2021 22:44 UTC Backblaze, Inc. BLZE · Entity 5087 GrantClass A Common Stock 9,375 $0.00 $0.00
Disclosure

SEC source: 0000899243-21-044878 · doc4.xml · nonDerivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,375

F1 · shares: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of Class A Common Stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the one-year anniversary of November 12, 2021, provided that the Reporting Person remains in continuous service through such vesting date.

Read SEC document
November 01, 2021 Filed Nov 2, 2021 23:28 UTC GSI TECHNOLOGY INC GSIT · Entity 6309 GrantStock Option (right to buy) · Derivative 7,733 $0.00 Strike: $5.56 $0.00
Disclosure

SEC source: 0001062993-21-010154 · form4.xml · derivative · entry 1

NELSON BARBARA H · CIK 0001204922 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,733

Underlying: Common Stock · 7,733 shares

Expires 2031-11-01

F1 · derivative.exercise_date: Subject to the Reporting Person's continued service to the Issuer, the option vests and becomes 100% exercisable on August 15, 2022.

Read SEC document

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