person · Reporting owner

ROSENBLATT DAVID S

Disclosed activity across 5 companies

Tapewire entity: 29479
SEC CIK: 0001237860

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
1stdibs.com, Inc.DIBS · Entity 6526	Director · Chief Executive Officer	September 08, 2026	September 10, 2026
ETSY INCETSY · Entity 2395	Director	June 09, 2026	June 11, 2026
People IncPPLI · Entity 4273	Director	July 16, 2026	July 20, 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.

1stdibs.com, Inc.

Report date September 08, 2026 · Filed September 10, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	2,203,074	Ending reported balance After 2026-09-08 transaction · row 5 5 source rows · reconciled sequence Row 1 · 2026-09-08 · Exercise / conversion · Acquired 37,500 · Balance 2,162,636 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Row 2 · 2026-09-08 · Exercise / conversion · Acquired 47,500 · Balance 2,210,136 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Row 3 · 2026-09-08 · Exercise / conversion · Acquired 47,500 · Balance 2,257,636 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Row 4 · 2026-09-08 · Exercise / conversion · Acquired 41,667 · Balance 2,299,303 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Row 5 · 2026-09-08 · Tax withholding · Disposed 96,229 · Balance 2,203,074 F2: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023, March 8, 2024, March 14, 2025 and March 16, 2026. None of these shares were sold in an open market transaction.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	75,000	Reported balance After 2026-09-08 transaction · row 8 Instrument identity requires review; Table II rows are not merged. 1 source row Row 8 · 2026-09-08 · Exercise / conversion · Disposed 37,500 · Balance 75,000 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F3: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	285,000	Reported balance After 2026-09-08 transaction · row 9 Instrument identity requires review; Table II rows are not merged. 1 source row Row 9 · 2026-09-08 · Exercise / conversion · Disposed 47,500 · Balance 285,000 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F4: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	475,000	Reported balance After 2026-09-08 transaction · row 10 Instrument identity requires review; Table II rows are not merged. 1 source row Row 10 · 2026-09-08 · Exercise / conversion · Disposed 47,500 · Balance 475,000 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	416,667	Reported balance After 2026-09-08 transaction · row 11 Instrument identity requires review; Table II rows are not merged. 1 source row Row 11 · 2026-09-08 · Exercise / conversion · Disposed 41,667 · Balance 416,667 F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F6: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.
Common StockSEC Table I · non-derivative	IndirectBy 2024 Laura Thalheimer Rosenblatt Family Trust effective 4/1/2024	22,500	Reported balance Holding disclosure · report date 2026-09-08 · row 6 Holding and transaction disclosures are not merged. 1 source row Row 6 · Balance 22,500
Common StockSEC Table I · non-derivative	IndirectBy 2012 David Rosenblatt Family Trust dtd 11/30/2012	712,802	Reported balance Holding disclosure · report date 2026-09-08 · row 7 Holding and transaction disclosures are not merged. 1 source row Row 7 · Balance 712,802

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023, March 8, 2024, March 14, 2025 and March 16, 2026. None of these shares were sold in an open market transaction.

F3: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F5: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F6: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

ETSY INC

Report date June 09, 2026 · Filed June 11, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	6,032	Reported balance After 2026-06-09 transaction · row 1 1 source row Row 1 · 2026-06-09 · Exercise / conversion · Acquired 4,733 · Balance 6,032
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	0	Reported balance After 2026-06-09 transaction · row 2 Instrument identity requires review; Table II rows are not merged. 1 source row Row 2 · 2026-06-09 · Exercise / conversion · Disposed 4,733 · Balance 0 F1: Units correspond 1-for-1 with common stock. F2: 100% of this award vested on June 9, 2026.
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	3,921	Reported balance After 2026-06-09 transaction · row 3 Instrument identity requires review; Table II rows are not merged. 1 source row Row 3 · 2026-06-09 · Grant · Acquired 3,921 · Balance 3,921 F1: Units correspond 1-for-1 with common stock. F3: This award is granted as part of the Reporting Person's annual retainer under the Etsy, Inc. Compensation Program for Non-Employee directors. 100% of this award will vest on the date of the next Annual Meeting of Stockholders, subject to the Reporting Person's continuous service as a member of the Board of Directors on such date.

Filing footnotes · ownership attribution and instrument terms

F1: Units correspond 1-for-1 with common stock.

F2: 100% of this award vested on June 9, 2026.

F3: This award is granted as part of the Reporting Person's annual retainer under the Etsy, Inc. Compensation Program for Non-Employee directors. 100% of this award will vest on the date of the next Annual Meeting of Stockholders, subject to the Reporting Person's continuous service as a member of the Board of Directors on such date.

People Inc

Report date July 16, 2026 · Filed July 20, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible security	Direct	5,490	Reported balance After 2026-07-16 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2026-07-16 · Grant · Acquired 5,490 · Balance 5,490 F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. F2: Represents RSUs that vest in equal installments on each of July 16, 2027, 2028, and 2029 subject to continued service.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

F2: Represents RSUs that vest in equal installments on each of July 16, 2027, 2028, and 2029 subject to continued service.

Past disclosures · reporting ended (2)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Match Group, Inc.

Report date June 30, 2020 · Filed July 03, 2020

Section 16 reporting ended · disclosed 2020-07-03. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common Stock, par value $0.001SEC Table I · non-derivative	Direct	109,560	Ending reported balance After 2020-06-30 transaction · row 2 2 source rows · reconciled sequence Row 1 · 2020-06-30 · Disposition to issuer · Disposed 50,760 · Balance 0 F1: Includes: (i) 45,476 shares of common stock held directly by the reporting person and (ii) 5,284 share units accrued under the Non-Employee Director Deferred Compensation Plan. F2: Pursuant to the terms of the transaction agreement, dated as of December 19, 2019 (as amended, the "Transaction Agreement"), by and among the Issuer, Match Group, Inc., IAC Holdings, Inc. ("New IAC"), a direct wholly owned subsidiary of the Issuer, and Valentine Merger Sub LLC, an indirect wholly owned subsidiary of the Issuer, (i) the shares of common stock automatically converted into (a) shares of the Issuer's Class M common stock (which was subsequently renamed Match Group, Inc. common stock) based on the Reclassification Exchange Ratio (as calculated pursuant to the Transaction Agreement) and (b) shares of New IAC common stock, on a one-for-one basis, and (ii) the share units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion. Row 2 · 2020-06-30 · Grant · Acquired 109,560 · Balance 109,560 F2: Pursuant to the terms of the transaction agreement, dated as of December 19, 2019 (as amended, the "Transaction Agreement"), by and among the Issuer, Match Group, Inc., IAC Holdings, Inc. ("New IAC"), a direct wholly owned subsidiary of the Issuer, and Valentine Merger Sub LLC, an indirect wholly owned subsidiary of the Issuer, (i) the shares of common stock automatically converted into (a) shares of the Issuer's Class M common stock (which was subsequently renamed Match Group, Inc. common stock) based on the Reclassification Exchange Ratio (as calculated pursuant to the Transaction Agreement) and (b) shares of New IAC common stock, on a one-for-one basis, and (ii) the share units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion.
Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2021-06-28	Direct	0	Reported balance After 2020-06-30 transaction · row 3 Instrument identity requires review; Table II rows are not merged. 1 source row Row 3 · 2020-06-30 · Disposition to issuer · Disposed 547 · Balance 0 F3: Restricted stock units convert into common stock on a one-for-one basis. F4: Pursuant to the terms of the Transaction Agreement, the restricted stock units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion. F5: Represents restricted stock units that vested/vest in 3 equal installments on June 28, 2019, 2020 and 2021, subject to continued service.
Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2022-06-12	Direct	0	Reported balance After 2020-06-30 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2020-06-30 · Disposition to issuer · Disposed 727 · Balance 0 F3: Restricted stock units convert into common stock on a one-for-one basis. F4: Pursuant to the terms of the Transaction Agreement, the restricted stock units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion. F6: Represents restricted stock units that vested/vest in 3 equal installments on June 12, 2020, 2021 and 2022, subject to continued service.
Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2021-06-25	Direct	0	Reported balance After 2020-06-30 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2020-06-30 · Disposition to issuer · Disposed 548 · Balance 0 F3: Restricted stock units convert into common stock on a one-for-one basis. F4: Pursuant to the terms of the Transaction Agreement, the restricted stock units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion. F7: Represents restricted stock units that vested/vest in 3 equal installments on June 25, 2019, 2020 and 2021, subject to continued service.
Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2023-06-25	Direct	0	Reported balance After 2020-06-30 transaction · row 6 Instrument identity requires review; Table II rows are not merged. 1 source row Row 6 · 2020-06-30 · Disposition to issuer · Disposed 821 · Balance 0 F3: Restricted stock units convert into common stock on a one-for-one basis. F4: Pursuant to the terms of the Transaction Agreement, the restricted stock units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion. F8: Represents restricted stock units that vested/vest in 3 equal installments on June 25, 2021, 2022 and 2023, subject to continued service.

Filing footnotes · ownership attribution and instrument terms

F1: Includes: (i) 45,476 shares of common stock held directly by the reporting person and (ii) 5,284 share units accrued under the Non-Employee Director Deferred Compensation Plan.

F2: Pursuant to the terms of the transaction agreement, dated as of December 19, 2019 (as amended, the "Transaction Agreement"), by and among the Issuer, Match Group, Inc., IAC Holdings, Inc. ("New IAC"), a direct wholly owned subsidiary of the Issuer, and Valentine Merger Sub LLC, an indirect wholly owned subsidiary of the Issuer, (i) the shares of common stock automatically converted into (a) shares of the Issuer's Class M common stock (which was subsequently renamed Match Group, Inc. common stock) based on the Reclassification Exchange Ratio (as calculated pursuant to the Transaction Agreement) and (b) shares of New IAC common stock, on a one-for-one basis, and (ii) the share units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion.

F3: Restricted stock units convert into common stock on a one-for-one basis.

F4: Pursuant to the terms of the Transaction Agreement, the restricted stock units automatically converted into restricted stock units of New IAC corresponding to shares of New IAC's common stock, on a basis that preserves the fair market value of such awards immediately before and immediately after the conversion.

F5: Represents restricted stock units that vested/vest in 3 equal installments on June 28, 2019, 2020 and 2021, subject to continued service.

F6: Represents restricted stock units that vested/vest in 3 equal installments on June 12, 2020, 2021 and 2022, subject to continued service.

F7: Represents restricted stock units that vested/vest in 3 equal installments on June 25, 2019, 2020 and 2021, subject to continued service.

F8: Represents restricted stock units that vested/vest in 3 equal installments on June 25, 2021, 2022 and 2023, subject to continued service.

TWITTER, INC.

Report date October 27, 2022 · Filed October 31, 2022

Section 16 reporting ended · disclosed 2022-10-31. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee footnote	0	Reported balance After 2022-10-27 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged. 1 source row Row 1 · 2022-10-27 · Disposition to issuer · Disposed 111,811 · Balance 0 F1: Pursuant to the Agreement and Plan of Merger (the "Merger Agreement") dated April 25, 2022, by and among the Issuer, X Holdings I, Inc., a Delaware corporation ("Parent"), X Holdings II, Inc., a Delaware corporation and a direct wholly owned Subsidiary of Parent ("Acquisition Sub"), and, solely for the purpose of certain provisions of the Merger Agreement, Elon R. Musk, on October 27, 2022 (the "Closing Date"), Acquisition Sub merged with and into the Issuer (the "Merger"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent. Parent is wholly owned by Mr. Musk. In connection with the Merger, these shares were cancelled and converted into the right to receive $54.20 in cash, without interest, per share, subject to the terms and conditions of the Merger Agreement (the "Merger Consideration"). F2: 87,460 shares are held by the Reporting Person and spouse in a tenants in common holding account.
Common StockSEC Table I · non-derivative	IndirectSee footnote	0	Reported balance After 2022-10-27 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged. 1 source row Row 2 · 2022-10-27 · Disposition to issuer · Disposed 5,954 · Balance 0 F3: Unvested Restricted Stock Units of the Issuer ("Issuer RSUs"), as of immediately prior to the Closing Date, were cancelled and converted into the right to receive the Merger Consideration. F2: 87,460 shares are held by the Reporting Person and spouse in a tenants in common holding account.

Filing footnotes · ownership attribution and instrument terms

F1: Pursuant to the Agreement and Plan of Merger (the "Merger Agreement") dated April 25, 2022, by and among the Issuer, X Holdings I, Inc., a Delaware corporation ("Parent"), X Holdings II, Inc., a Delaware corporation and a direct wholly owned Subsidiary of Parent ("Acquisition Sub"), and, solely for the purpose of certain provisions of the Merger Agreement, Elon R. Musk, on October 27, 2022 (the "Closing Date"), Acquisition Sub merged with and into the Issuer (the "Merger"), with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent. Parent is wholly owned by Mr. Musk. In connection with the Merger, these shares were cancelled and converted into the right to receive $54.20 in cash, without interest, per share, subject to the terms and conditions of the Merger Agreement (the "Merger Consideration").

F2: 87,460 shares are held by the Reporting Person and spouse in a tenants in common holding account.

F3: Unvested Restricted Stock Units of the Issuer ("Issuer RSUs"), as of immediately prior to the Closing Date, were cancelled and converted into the right to receive the Merger Consideration.

Transaction history

JSON API

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 date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	41,667	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · derivative · entry 11 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 416,667 Underlying: Common Stock · 41,667 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F6 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F6 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · derivative · entry 10 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 475,000 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · derivative · entry 9 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 285,000 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	37,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · derivative · entry 8 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 75,000 Underlying: Common Stock · 37,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Tax withholdingCommon Stock	96,229	$4.73	$455,163.17	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · nonDerivative · entry 5 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,203,074 F2 · price: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023, March 8, 2024, March 14, 2025 and March 16, 2026. None of these shares were sold in an open market transaction. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	41,667	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · nonDerivative · entry 4 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,299,303 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · nonDerivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,257,636 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · nonDerivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,210,136 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
September 08, 2026 Filed Sep 10, 2026 22:14 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	37,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000018 · wk-form4_1789078474.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,162,636 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
July 16, 2026 Filed Jul 20, 2026 22:39 UTC	People Inc PPLI · Entity 4273	GrantRestricted Stock Units · Derivative	5,490	$0.00	$0.00	Disclosure SEC source: 0001628280-26-048885 · wk-form4_1784587156.xml · derivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,490 Underlying: Common Stock, par value $0.0001 · 5,490 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. F2 · derivative.exercise_date: Represents RSUs that vest in equal installments on each of July 16, 2027, 2028, and 2029 subject to continued service. F2 · derivative.expiration_date: Represents RSUs that vest in equal installments on each of July 16, 2027, 2028, and 2029 subject to continued service. Read SEC document
June 18, 2026 Filed Jun 23, 2026 22:42 UTC	People Inc PPLI · Entity 4273	Exercise / conversionRestricted Stock Units · Derivative	2,263	$0.00 Strike: $0.00	$0.00	Disclosure SEC source: 0001628280-26-045000 · wk-form4_1782254525.xml · derivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,528 Underlying: Common Stock, par value $0.0001 · 2,263 shares Expires not disclosed 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. F2 · derivative.exercise_date: Represents RSUs that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service. F2 · derivative.expiration_date: Represents RSUs that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service. Read SEC document
June 18, 2026 Filed Jun 23, 2026 22:42 UTC	People Inc PPLI · Entity 4273	Exercise / conversionCommon Stock, par value $0.0001	2,263	$0.00	$0.00	Disclosure SEC source: 0001628280-26-045000 · wk-form4_1782254525.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 97,261 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. F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units ("RSUs"). Read SEC document
June 15, 2026 Filed Jun 18, 2026 01:10 UTC	People Inc PPLI · Entity 4273	Exercise / conversionRestricted Stock Units · Derivative	1,609	$0.00 Strike: $0.00	$0.00	Disclosure SEC source: 0001628280-26-044093 · wk-form4_1781745025.xml · derivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock, par value $0.0001 · 1,609 shares Expires not disclosed 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. F3 · derivative.exercise_date: Represents RSUs that vest in equal installments on each of June 15, 2024, 2025, and 2026 subject to continued service. F3 · derivative.expiration_date: Represents RSUs that vest in equal installments on each of June 15, 2024, 2025, and 2026 subject to continued service. Read SEC document
June 15, 2026 Filed Jun 18, 2026 01:10 UTC	People Inc PPLI · Entity 4273	Exercise / conversionCommon Stock, par value $0.0001	1,609	$0.00	$0.00	Disclosure SEC source: 0001628280-26-044093 · wk-form4_1781745025.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 94,998 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. F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units ("RSUs"). F2 · balance_after: The amount reported in Column 5 has been corrected to reflect an administrative error in the previously reported holdings balance. No transactions were omitted. Read SEC document
June 11, 2026 Filed Jun 16, 2026 00:26 UTC	People Inc PPLI · Entity 4273	Exercise / conversionRestricted Stock Units · Derivative	2,076	$0.00 Strike: $0.00	$0.00	Disclosure SEC source: 0001628280-26-043398 · wk-form4_1781569597.xml · derivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,076 Underlying: Common Stock, par value $0.0001 · 2,076 shares Expires not disclosed 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. F2 · security: Represents RSUs that vest in equal installments on each of June 11, 2025, 2026, and 2027, subject to continued service. F2 · derivative.exercise_date: Represents RSUs that vest in equal installments on each of June 11, 2025, 2026, and 2027, subject to continued service. F2 · derivative.expiration_date: Represents RSUs that vest in equal installments on each of June 11, 2025, 2026, and 2027, subject to continued service. Read SEC document
June 11, 2026 Filed Jun 16, 2026 00:26 UTC	People Inc PPLI · Entity 4273	Exercise / conversionCommon Stock, par value $0.0001	2,076	$0.00	$0.00	Disclosure SEC source: 0001628280-26-043398 · wk-form4_1781569597.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 87,832 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. F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units ("RSUs"). Read SEC document
June 09, 2026 Filed Jun 11, 2026 21:00 UTC	ETSY INC ETSY · Entity 2395	GrantRestricted Stock Units · Derivative	3,921	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000014 · form4-06112026_050608.xml · derivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,921 Underlying: Common Stock · 3,921 shares Expires not disclosed F1 · derivative.exercise_price: Units correspond 1-for-1 with common stock. F3 · derivative.exercise_date: This award is granted as part of the Reporting Person's annual retainer under the Etsy, Inc. Compensation Program for Non-Employee directors. 100% of this award will vest on the date of the next Annual Meeting of Stockholders, subject to the Reporting Person's continuous service as a member of the Board of Directors on such date. F3 · derivative.expiration_date: This award is granted as part of the Reporting Person's annual retainer under the Etsy, Inc. Compensation Program for Non-Employee directors. 100% of this award will vest on the date of the next Annual Meeting of Stockholders, subject to the Reporting Person's continuous service as a member of the Board of Directors on such date. Read SEC document
June 09, 2026 Filed Jun 11, 2026 21:00 UTC	ETSY INC ETSY · Entity 2395	Exercise / conversionRestricted Stock Units · Derivative	4,733	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000014 · form4-06112026_050608.xml · derivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,733 shares Expires not disclosed 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. F1 · derivative.exercise_price: Units correspond 1-for-1 with common stock. F2 · derivative.exercise_date: 100% of this award vested on June 9, 2026. F2 · derivative.expiration_date: 100% of this award vested on June 9, 2026. Read SEC document
June 09, 2026 Filed Jun 11, 2026 21:00 UTC	ETSY INC ETSY · Entity 2395	Exercise / conversionCommon Stock	4,733	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000014 · form4-06112026_050608.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,032 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
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	37,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · derivative · entry 11 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 112,500 Underlying: Common Stock · 37,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F6 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F6 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	41,666	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · derivative · entry 10 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 458,334 Underlying: Common Stock · 41,666 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · derivative · entry 9 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 522,500 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · derivative · entry 8 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 332,500 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Tax withholdingCommon Stock	96,228	$4.01	$385,874.28	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · nonDerivative · entry 5 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,125,136 F2 · price: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023, March 8, 2024, March 14, 2025 and March 16, 2026. None of these shares were sold in an open market transaction. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	37,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · nonDerivative · entry 4 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,221,364 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	41,666	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · nonDerivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,183,864 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · nonDerivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,142,198 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
June 08, 2026 Filed Jun 10, 2026 15:19 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000012 · wk-form4_1781104791.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,094,698 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
May 12, 2026 Filed May 13, 2026 12:03 UTC	1stdibs.com, Inc. DIBS · Entity 6526	PurchaseCommon Stock	320	$4.35	$1,391.68	Disclosure SEC source: 0001237860-26-000008 · wk-form4_1778673781.xml · nonDerivative · entry 5 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Indirect · By 2012 David Rosenblatt Family Trust dtd 11/30/2012 Disclosed balance after: 712,802 Read SEC document
May 12, 2026 Filed May 13, 2026 12:03 UTC	1stdibs.com, Inc. DIBS · Entity 6526	PurchaseCommon Stock	3,425	$4.49	$15,383.73	Disclosure SEC source: 0001237860-26-000008 · wk-form4_1778673781.xml · nonDerivative · entry 4 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Indirect · By 2012 David Rosenblatt Family Trust dtd 11/30/2012 Disclosed balance after: 712,482 Read SEC document
May 12, 2026 Filed May 13, 2026 12:03 UTC	1stdibs.com, Inc. DIBS · Entity 6526	PurchaseCommon Stock	43,755	$4.51	$197,356.93	Disclosure SEC source: 0001237860-26-000008 · wk-form4_1778673781.xml · nonDerivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Indirect · By 2012 David Rosenblatt Family Trust dtd 11/30/2012 Disclosed balance after: 709,057 Read SEC document
March 16, 2026 Filed Mar 17, 2026 23:56 UTC	1stdibs.com, Inc. DIBS · Entity 6526	GrantRestricted Stock Units · Derivative	500,000	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000006 · wk-form4_1773791777.xml · derivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 500,000 Underlying: Common Stock · 500,000 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F2 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F2 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · derivative · entry 9 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 570,000 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · derivative · entry 8 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 380,000 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	37,500	$0.00	$0.00	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · derivative · entry 7 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 150,000 Underlying: Common Stock · 37,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Tax withholdingCommon Stock	62,088	$5.49	$340,863.12	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · nonDerivative · entry 4 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,047,198 F2 · price: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023, March 8, 2024 and March 14, 2025. None of these shares were sold in an open market transaction. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · nonDerivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,109,286 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · nonDerivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,061,786 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
March 09, 2026 Filed Mar 12, 2026 00:05 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	37,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-26-000004 · wk-form4_1773273921.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,014,286 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · derivative · entry 9 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 617,500 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · derivative · entry 8 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 427,500 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	37,500	$0.00	$0.00	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · derivative · entry 7 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,500 Underlying: Common Stock · 37,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	SaleCommon Stock	73,207	$5.96	$436,313.72	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · nonDerivative · entry 4 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,976,786 F2 · shares: These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations of the Reporting Person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the Reporting Person on March 15, 2023, March 8, 2024 and March 14, 2025. None of these shares were sold in an open market transaction. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · nonDerivative · entry 3 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,049,993 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	47,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · nonDerivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,002,493 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
December 08, 2025 Filed Dec 10, 2025 14:06 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	37,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001237860-25-000009 · wk-form4_1765375579.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,954,993 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. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Read SEC document
November 24, 2025 Filed Nov 27, 2025 02:12 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionEmployee Stock Option (right to buy) · Derivative	666,666	$0.00 Strike: $3.87	$0.00	Disclosure SEC source: 0001237860-25-000007 · wk-form4_1764209560.xml · derivative · entry 5 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 666,666 shares Expires 2026-02-11 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. F2 · derivative.exercise_date: Option vests over four years with 1/48th of the shares vesting on each monthly anniversary of November 1, 2015, subject to the reporting person's continued service with the Issuer through the applicable vesting date. Read SEC document
November 24, 2025 Filed Nov 27, 2025 02:12 UTC	1stdibs.com, Inc. DIBS · Entity 6526	SaleCommon Stock	595,071	$5.09	$3,028,911.39	Disclosure SEC source: 0001237860-25-000007 · wk-form4_1764209560.xml · nonDerivative · entry 2 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,917,493 F1 · shares: The transactions reported herein represent a net exercise of outstanding stock options. The reporting person received 666,666 shares of common stock on a net exercise of an option to purchase 666,666 shares of common stock. The Issuer withheld 595,071 shares of common stock underlying the option for payment of the aggregate exercise price of $2,579,997.42 and to meet the tax withholding obligations of the reporting person, using the stock price on November 24, 2025 of $5.09, pursuant to the terms of the 2011 Stock Option and Grant Plan. Read SEC document
November 24, 2025 Filed Nov 27, 2025 02:12 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionCommon Stock	666,666	$3.87	$2,579,997.42	Disclosure SEC source: 0001237860-25-000007 · wk-form4_1764209560.xml · nonDerivative · entry 1 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,512,564 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
September 08, 2025 Filed Sep 10, 2025 22:03 UTC	1stdibs.com, Inc. DIBS · Entity 6526	Exercise / conversionRestricted Stock Units · Derivative	47,500	$0.00	$0.00	Disclosure SEC source: 0001600641-25-000120 · wk-form4_1757541778.xml · derivative · entry 9 ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 665,000 Underlying: Common Stock · 47,500 shares Expires not disclosed 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. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date. 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.