Updated Jul 16, 2026 · Last SEC filing 2026-05-29
Knowles Corp (KN) has filed 11 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-29. 2 Form 8-K material event filings were reported by KN in the last 90 days. 9 Form 144 notices of proposed sale were filed for KN stock. InsiderAlpha tracks every KN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001587523 |
|---|
| Form 4 filings (90d) | 11 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 9 |
| Latest Form 4 filing | 2026-05-29 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Giesecke Daniel J. | Senior Vice President & COO | S — Open-market sale | 10.2K | $37.33 | $380K | SEC | |
| Giesecke Daniel J. | Senior Vice President & COO | S — Open-market sale | 10.0K | $37.31 | $374K | SEC | |
| Cabrera Raymond D. | SVP, Chief HR Officer | F — Tax withholding / forfeiture | 17.6K | $36.62 | $644K | SEC | |
| Cabrera Raymond D. | SVP, Chief HR Officer | M — Option exercise | 25.2K | $16.77 | $423K | SEC | |
| Niew Jeffrey | President & CEO | M — Option exercise | 142.9K | $16.77 | $2.40M | SEC | |
| Niew Jeffrey | President & CEO | S — Open-market sale | 142.9K | $33.25 | $4.75M | SEC | |
| Bastarrica Air A. Jr. | Vice President, Controller | S — Open-market sale | 2.2K | $29.96 | $65K | SEC | |
| Li Ye Jane | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| BARNES KEITH | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| Angelini Laura | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| Crowley Daniel J | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| SHAVERS CHERYL L | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| Bastarrica Air A. Jr. | Vice President, Controller | S — Open-market sale | 2.0K | $30.26 | $59K | SEC | |
| WISHART MICHAEL S | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC | |
| Cardew Jason M | Director | A — Grant or award | 6.3K | $30.33 | $190K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Knowles Corp (KN). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Niew Jeffrey | 3 | $9.54M |
| Li Ye Jane | 3 | $190K |
| Bastarrica Air A. Jr. | 3 | $193K |
| Cabrera Raymond D. | 3 | $1.49M |
| Giesecke Daniel J. | 2 | $754K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in KN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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