Insiders who reported open-market trades in the last 12 months at the companies Wendy Pfeiffer 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.
Sumedh S. Thakar - $14.15M in QLYS purchases and sales in the last 12 months
Joo Mi Kim - $4.37M in QLYS purchases and sales in the last 12 months
Bruce K. Posey - $2.01M in QLYS purchases and sales in the last 12 months
Thomas Berquist - $194K in QLYS purchases and sales in the last 12 months
Jeffrey P. Hank - $103K in QLYS purchases and sales in the last 12 months
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Wendy Pfeiffer is a corporate insider, tracked as Director of QUALYS, INC. (QLYS). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Wendy Pfeiffer submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Wendy Pfeiffer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($359K) across all tracked filings.
Wendy Pfeiffer is Director of QUALYS, INC. (QLYS). 9 SEC Form 4 filings on record going back to 2025, most recently on 21 August 2026. Most recent open-market trade: sold $92K of QLYS on 21 August 2026. Lifetime open-market sales: $359K.
Recent transactions
9
The latest 9 SEC Form 4 transactions reported by Wendy Pfeiffer.
InsiderAlpha's records for Wendy Pfeiffer go back to 2025: 9 primary Form 4 filings, an average of 4.5 per year. 4 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.