InsiderEdge™ – Top Sales and Top Purchases – September 19, 2025

Top Purchases

The top purchases made by insiders yesterday. Remember, returns and win rates are calculated using the previous purchase trades by the insider.

Chief Executive Officer at ALX Oncology Holdings Inc. ($ALXO)

Jason Lettmann (Chief Executive Officer) at ALX Oncology Holdings Inc. ($ALXO) purchased 92,233 shares at $1.08/share ($99.35K total) which increased their vested holdings by 43.3%. The current price is $1.09 (+1.2%). Their median purchase size is $2.58M and this is their 2nd largest purchase out of 3 all time. (SEC Source)

Historic Returns
1m returns: +53.5% weighted | 100% win rate (2/2)
3m returns: +42.6% weighted | 50% win rate (1/2)
6m returns: +177.0% weighted | 50% win rate (1/2)
1y returns: +103.0% weighted | 50% win rate (1/2)

Note: This is the 2nd insider purchase at this company in the last 30 days


Top Sales

The top sales made by insiders yesterday. Remember, returns and win rates are calculated using the previous sell trades by the insider. For sell transactions, “win rate” is the percent of profitable trades. If the “win rate” is low, that means the stock typically falls after the insider sells.

Director at Heritage Insurance Holdings Inc. ($HRTG)

Director at Heritage Insurance Holdings, Inc. ($HRTG) sold 100,000 shares at $24.15/share ($2.42M total) which decreased their vested holdings by 14.3%. Their median sale size is $1.24M and this is their 1st largest sale out of 2 all time. (SEC Source)

Historic Returns
1m returns: -6.84% weighted | 0% win rate (0/1)
3m returns: +15.4% weighted | 100% win rate (1/1)
6m returns: +24.1% weighted | 100% win rate (1/1)
1y returns: -58.6% weighted | 0% win rate (0/1)

Note: This is the 4th insider sale at this company in the last 30 days. Selling the rip (stock was up 20.01% in the month before the sale).


Chief Legal Officer & Sec. at Zumiez Inc. ($ZUMZ)

Chief Legal Officer & Sec. at Zumiez Inc. ($ZUMZ) sold 5,618 shares at $20.09/share ($112.88K total) which decreased their vested holdings by 11.3%. Their median sale size is $298.88K and this is their 8th largest sale out of 13 all time. (SEC Source)

Historic Returns (unscheduled sales only)
1m returns: +5.08% weighted | 75% win rate (3/4)
3m returns: +25.6% weighted | 75% win rate (3/4)
6m returns: +30.9% weighted | 50% win rate (2/4)
1y returns: +43.5% weighted | 75% win rate (3/4)

Note: This is the 2nd insider sale at this company in the last 30 days. Selling the rip (stock was up 32.22% in the month before the sale).


Disclaimer: The content provided by InsiderEdge™ is for informational purposes only and does not constitute investment advice, an offer to sell, or a solicitation of an offer to buy any securities. The historical performance noted in this post is not is not indicative of future results. Investing involves risk, including the potential loss of principal. Use the platform at your own risk and consult a financial advisor before making any investment decisions. In partnership with Yellowbrick Investing Inc.

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