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Insider Trading

Last Updated: 3 months, 2 weeks ago

James M Zemlyak has an estimated net worth of at least $134.1 million*, as of Oct. 29, 2025. They own 1.2 million shares of SF stock. They have sold 9 shares of SF stock since 2021, for an estimated $-1.1 million.

James M Zemlyak $SF SEC Form 4 Insider Trading

James M Zemlyak has filed a total of 6 insider trades in $SF since 2021. Their most recent trade was a sale of 9 shares, made on Jan 29, 2026. Their largest trade was a purchase of 20,000 shares, made on Mar 24, 2023. We estimate that they now own 1.2 million shares of $SF, worth an estimated $135.2 million.



Insider Trading at $SF

There have been a total of 31 insider trades reported at $SF since 2021, with 50,183 shares purchased and 299,183 shares sold. The most active insider traders in $SF stock have been James M Zemlyak, Ronald J Kruszewski, and Victor Nesi. The most recent trade was a sale of 400 shares reported by David Rubulotta (None), made on Feb 02, 2026.



History of Insider Stock Trades by James M Zemlyak

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
SF logo SF Sale 9 Jan 29, 2026 Feb. 2, 2026, 5:26 p.m.
SF logo SF Purchase 4 Aug 07, 2025 Aug. 21, 2025, 5:03 p.m.
SF logo SF Purchase 1 Aug 11, 2025 Aug. 21, 2025, 5:03 p.m.
SF logo SF Purchase 2 Aug 12, 2025 Aug. 21, 2025, 5:03 p.m.
SF logo SF Purchase 2 Aug 13, 2025 Aug. 21, 2025, 5:03 p.m.
SF logo SF Purchase 20,000 Mar 24, 2023 March 24, 2023, 3:12 p.m.




$SF 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.