1stdibs.com, Inc. has 8 Schedule 13D or 13G filings on record since 2025-08-14. 3 holders' latest filing reports 5% or more of common stock, $0.01 par value per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| David S. Rosenblatt | 10.5% | 3,701,802 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Kanen Wealth Management LLC | 5.3% | 1,936,801 | SCHEDULE 13G, 2026-02-06 | 2026-02-02 |
| John A. Catsimatidis Jr. | 5.1% | 1,872,035 | SCHEDULE 13D, 2025-11-21 | 2025-11-14 |
| Sofina Capital S.A. | 0% | 0 | SCHEDULE 13G, 2026-01-15 | 2025-11-14 |
Purpose of Transaction (Item 4)
John A. Catsimatidis Jr.
The Reporting Persons acquired the Shares solely for investment purposes, based on the belief that the Issuer is currently successfully executing its strategic plan, is at a financial inflection point and remains undervalued relative to its long-term intrinsic valuation. The Reporting Persons have had constructive conversations with the Issuer during which, among other things, the Reporting Persons have made clear their strong support for, and appreciation of the efforts of, the Issuer's management team and the Board of Directors (the "Board"). The Reporting Persons view the Issuer as a compelling long duration investment opportunity and have strong confidence in the Issuer's management team's articulated strategy, operational discipline, capital allocation approach and long-term vision for the business. The Reporting Persons also believe that this investment reflects a conviction in the executive team's short- and long-term ability to continue execution of the Issuer's current strategic plan, as demonstrated by several key factors: Accelerated Profitability: The Issuer's September 2025 strategic realignment and clear guidance toward the Issuer achieving positive Adjusted EBITDA and generating free cash flow in fiscal year 2026 and beyond. Operational Discipline: A belief that the Issuer has demonstrated a track record and consistent approach of disciplined expense management and deliverance of ongoing operating efficiencies. Stockholder Focus: A belief that the Issuer …The first part of Item 4 of the SCHEDULE 13D filed 2025-11-21; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | David S. Rosenblatt | 10.2% | SCHEDULE 13G/A |
| 2025-11-14 | David S. Rosenblatt | 10.4% | SCHEDULE 13G/A |
| 2025-11-21 | John A. Catsimatidis Jr. | 5.1% | SCHEDULE 13D |
| 2026-01-15 | Sofina Capital S.A. | 0% | SCHEDULE 13G |
| 2026-02-06 | Kanen Wealth Management LLC | 5.3% | SCHEDULE 13G |
| 2026-02-13 | David S. Rosenblatt | 9.3% | SCHEDULE 13G/A |
| 2026-05-15 | David S. Rosenblatt | 9.8% | SCHEDULE 13G/A |
| 2026-08-14 | David S. Rosenblatt | 10.5% | SCHEDULE 13G/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.