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Insider Trading

Last Updated: 3 weeks, 1 day ago

Zachary Katz has an estimated net worth of at least $10.4 million*, as of Sept. 24, 2025. They own 548,339 shares of GRND stock. They have sold 74,655 shares of GRND stock since 2021, for an estimated $1.3 million.

Zachary Katz $GRND SEC Form 4 Insider Trading

Zachary Katz has filed a total of 12 insider trades in $GRND since 2021. Their most recent trade was a sale of 4,622 shares, made on Oct 13, 2025. Their largest trade was a sale of 14,693 shares, made on Jul 24, 2025. We estimate that they now own 548,339 shares of $GRND, worth an estimated $9.1 million.



Insider Trading at $GRND

There have been a total of 107 insider trades reported at $GRND since 2021, with 1.5 million shares purchased and 16.0 million shares sold. The most active insider traders in $GRND stock have been Zachary Katz, Vandana Mehta-Krantz, and Austin J Balance. The most recent trade was a sale of 253,809 shares reported by James Fu Bin Lu (None), made on Oct 13, 2025.



History of Insider Stock Trades by Zachary Katz

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
GRND logo GRND Sale 4,622 Oct 13, 2025 Oct. 15, 2025, 4:30 p.m.
GRND logo GRND Sale 3,023 Oct 13, 2025 Oct. 15, 2025, 4:30 p.m.
GRND logo GRND Sale 7,644 Sep 15, 2025 Sept. 17, 2025, 4:30 p.m.
GRND logo GRND Sale 14,693 Jul 24, 2025 July 28, 2025, 4:30 p.m.
GRND logo GRND Sale 14,692 Jul 03, 2025 July 8, 2025, 4:30 p.m.
GRND logo GRND Sale 14,692 Jun 16, 2025 June 18, 2025, 4:30 p.m.
GRND logo GRND Sale 1,358 Mar 11, 2025 March 13, 2025, 5:17 p.m.
GRND logo GRND Sale 1,700 Mar 11, 2025 March 13, 2025, 5:17 p.m.
GRND logo GRND Sale 3,057 Feb 11, 2025 Feb. 13, 2025, 5:30 p.m.
GRND logo GRND Sale 3,058 Jan 13, 2025 Jan. 15, 2025, 5:30 p.m.
GRND logo GRND Sale 3,058 Dec 11, 2024 Dec. 12, 2024, 5:30 p.m.
GRND logo GRND Sale 3,058 Nov 13, 2024 Nov. 15, 2024, 6:56 p.m.




$GRND Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.