Daily notes / October 19, 2026

John A. Catsimatidis Jr. reported 7.8% of 1stdibs.Com

Written by a model from the facts OQRO holds and checked against them, sentence by sentence of October 19, 2026. Published October 20, 2026. 2 min read.

Tall office buildings around Trinity Church in lower Manhattan seen from above, with the church spire between the towers. — Skyscrapers around Trinity Church, New York, 1905. Photo: Detroit Publishing Company (scan by the New York Public Library), Public domain (scan of a 1905 photograph, New York Public Library Digital Collections). Original

The short answer

John A. Catsimatidis Jr. filed a Schedule 13D/A on Oct 19, 2026, reporting 2,635,385 shares, or 7.8% of the class of 1stdibs.Com (DIBS). The filing came 71 days after the company’s Aug 5, 2026 results announcement. It reports ownership, not when shares were bought, and does not explain price movements around the filing.

What did John A. Catsimatidis Jr. file?

The SEC Schedule 13D is a Schedule 13D/A filed by John A. Catsimatidis Jr. on Oct 19, 2026. The filing reports 2,635,385 shares, 7.8% of the class of 1stdibs.Com (DIBS).

A Schedule 13D/A is an ownership filing. The information in this fact pack identifies the reported share count and percentage, but does not state when the shares were bought.

How does the filing line up with the company’s results announcement?

The filing was made 71 days after 1stdibs.Com’s results announcement on Aug 5, 2026, recorded as an 8-K Item 2.02. That is the timing reported in the public records summarized here.

The filing and the results announcement are separate records. The timing alone does not establish a connection between them.

What other ownership filings are on record?

In 13F filings for the quarter ended Jun 30, 2026, Jacobs Levy Equity Management, Inc increased its position by 103,149 shares. First Manhattan Co. Llc. and Omers Administration Corp sold out, making them the largest positions that shrank in the records described here.

A 13F is a quarter-end snapshot with no trade date. It does not show when during the quarter any reported position changed.

What was recorded for DIBS around the filing date?

DIBS closed at $4.28 on Oct 15, 2026, the last session on or before the filing date. From Sep 15, 2026 to Oct 15, 2026, the close moved from $4.51 to $4.28, a change of −5.1%.

From Oct 15, 2026 to Oct 19, 2026, the close moved from $4.28 to $4.25, a change of −0.6%. These price movements provide context and do not explain the ownership filing.

What did short-interest data show?

FINRA short interest for DIBS on the settlement date of Sep 30, 2026 was 1,221,286 shares, up +6.73% on the previous report. The reported figure was about 8.4 days of average volume.

Short-interest data is a separate record from the Schedule 13D/A. The figures do not establish when the shares in the ownership filing were bought.

What this does not tell you?

A Schedule 13D or 13G is an ownership filing, not a trade; it does not say when shares were bought. The filing does not explain the price moves, and other news can move a price.

This describes public filings. It is not investment advice. More information about the company is available on 1stdibs.Com on OQRO.

Sources

A model wrote this page from the facts OQRO holds; every number, date, name and link in it was checked against those facts before publication, and a text that failed the check was not published. It describes what was filed, not why, and it is not investment advice. How OQRO treats data