Summary
Updated Aug 31, 2026
Stuart Huizinga is Director of QUINSTREET, INC (QNST). 5 SEC Form 4 filings on record going back to 2024, most recently on 3 November 2025. Most recent open-market trade: sold $69K of QNST on 2 December 2024. Lifetime open-market sales: $231K.
Recent Transactions
6Every recent SEC Form 4 transaction Stuart Huizinga has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Stuart Huizinga go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Stuart Huizinga files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Douglas Valenti - $15.41M of QNST open-market activity in the last 12 months
- Gregory Wong - $1.19M of QNST open-market activity in the last 12 months
- Asmau Ahmed - $824K of QNST open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Stuart Huizinga?
Stuart Huizinga is a corporate insider, tracked as Director of QUINSTREET, INC (QNST). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Stuart Huizinga last file a Form 4?
The most recent primary Form 4 on record is dated 3 November 2025, one of 5 filings going back to 2024.
Has Stuart Huizinga been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($231K) across all tracked filings.
Where can I see all of Stuart Huizinga's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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