Summary
Updated Aug 31, 2026
John Ackerman files SEC Form 4 reports at Guardian Pharmacy Services, Inc. (GRDN). 4 SEC Form 4 filings on record going back to 2024, most recently on 31 March 2026. Most recent open-market trade: sold $8.18M of GRDN on 24 March 2026. Lifetime open-market sales: $32.75M.
Recent Transactions
6Every recent SEC Form 4 transaction John Ackerman has reported, most recent first.
Trading Pattern
InsiderAlpha's records for John Ackerman go back to 2024: 4 primary Form 4 filings, an average of 1.3 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 John Ackerman 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.
- Bindley Capital Partners I, LLC - $105.99M of GRDN open-market activity in the last 12 months
- William E. Bindley - $105.99M of GRDN open-market activity in the last 12 months
- Thomas J. Salentine Jr. - $105.99M of GRDN open-market activity in the last 12 months
- Pharmacy Investors, LLC - $44.01M of GRDN open-market activity in the last 12 months
- Fred Burke - $19.93M of GRDN open-market activity in the last 12 months
- Cardinal Equity Fund, L.P. - $14.66M of GRDN 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 John Ackerman?
John Ackerman is a corporate insider of Guardian Pharmacy Services, Inc. (GRDN). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did John Ackerman last file a Form 4?
The most recent primary Form 4 on record is dated 31 March 2026, one of 4 filings going back to 2024.
Has John Ackerman been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($32.75M) across all tracked filings.
Where can I see all of John Ackerman'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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