Transaction · 0001237860-26-000018

Rosenblatt David S

ROSENBLATT DAVID S, CEO, reported a transaction classified as exercise at 1stdibs.com, Inc. involving 47500.000000 shares for an estimated $0.00. Reported holdings after the transaction were 285000.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MCEO
DIBS1stdibs.com, Inc.
Trade date
Sep 08, 2026
Filing date
Sep 10, 2026
View on SEC Insider profile
Disclosed value$0Shares × reported price
Shares traded47.5k$0.00 per share
Holdings after285kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Not calculated for derivative securities.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

DIBS price since this filing

Daily closing prices, with the filing date and available return windows
DIBS · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago1w ago1d ago
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
exercise
Code M
Identifier
0001237860-26-000018
Restricted Stock Units
Transaction date
Sep 08, 2026
Filed Sep 10, 2026, 10:14 PM · 2d delay
Shares
47,500 sh
$0.00 per share
Estimated value
$0
Computed from shares × price
Holdings after
285,000 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction Direct Ownership
Filing-only score

-6 points

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
  • derivative_transaction-16 points

    is_derivative = true

    Derivative exercise rows are less discretionary than open-market purchases.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

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

  2. 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…

  3. 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…

  4. 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…

  5. 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…

  6. 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…

Original filing · 0001237860-26-000018
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