John S. Anderson - SEC Form 4 Insider Trading Activity
Senior Vice President & CFO
Summary
Updated Aug 16, 2026
John S. Anderson has filed 1 SEC Form 4 filing across 1 company in the last 90 days - selling. Lifetime open-market sales: $3.32M.
Profile
John S. Anderson serves as Senior Vice President & CFO of Knowles Corp (KN). Anderson has reported 10 insider filings with the SEC since 2024. The most recent filing was in February 2026.
- Role
- Senior Vice President & CFO
Board memberships
- Knowles Corp
Trading Pattern
InsiderAlpha's records for John S. Anderson go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. 5 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Career & Filing History
Every role John S. Anderson has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Senior Vice President & CFO at Knowles Corp (KN) - 10 filings, 2024 to 2026
- Senior Vice President CFO at Knowles Corp (KN) - 1 filing, 2025
Recent Transactions
20Companies - Last 90 Days
1- Knowles Corp (KN) - 1 filing, last 2026-08-13
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies John S. Anderson has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Jeffrey Niew - $19.64M of KN open-market activity in the last 12 months
- Daniel J. Giesecke - $1.19M of KN open-market activity in the last 12 months
- Keith Barnes - $1.11M of KN open-market activity in the last 12 months
- Robert J. Perna - $551K of KN open-market activity in the last 12 months
- Air A. Bastarrica Jr. - $514K of KN open-market activity in the last 12 months
- Raymond D. Cabrera - $492K of KN 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 S. Anderson?
John S. Anderson serves as Senior Vice President & CFO of Knowles Corp (KN). Anderson has reported 10 insider filings with the SEC since 2024. The most recent filing was in February 2026.…
How many SEC Form 4 filings has John S. Anderson submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has John S. Anderson been buying or selling stock?
Recorded transactions: 0 open-market purchases and 10 open-market sales ($3.32M) across all tracked filings.
Where can I see all of John S. Anderson'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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