Michael W. Wallace

This profile gathers the share dealings of Michael W. Wallace in Spok Holdings, Inc, where the filings describe the role as finance chief. In total, 23 filings cover trades dated from 9 July 2021 to 4 March 2026.

Market trades split into 4 purchases (€67k) and 8 sales (€2.0M). On balance, insiders were net sellers of €2.0M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 1 share grant and 10 option exercises.

The median purchase comes to €15k. 4 out of 4 purchases came within 30 days of a purchase by at least one other insider of the same company. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.

The newest entry dates from 4 March 2026: an option exercise of €319k, in Spok Holdings, Inc. The clock since the last published purchase (8 March 2023) now reads 1,320 days. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 1 day. Section 16 rules allow two business days to file each Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.