As of the latest Form 4 filed May 29, 2026.
What Knowles Cor insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 59 most recent filings for KN.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-29 | 2026-05-27 | Giesecke Daniel J. Senior Vice President & COO | SSale | −10.0K | $37.31 | $374K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-27 | Giesecke Daniel J., Senior Vice President & COO | SSale | −10.2K | $37.33 | $380K | Yes (planned) | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Cabrera Raymond D. SVP, Chief HR Officer | FTax | −17.6K | $36.62 | $644K | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | Cabrera Raymond D., SVP, Chief HR Officer | MExercise | +25.2K | $16.77 | $423K | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Niew Jeffrey President & CEO | SSale | −143K | $33.25 | $4.75M | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Niew Jeffrey, President & CEO | MExercise | +143K | $16.77 | $2.40M | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-30 | Bastarrica Air A. Jr. Vice President, Controller | SSale | −3.62K | $30.91 | $112K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-29 | Bastarrica Air A. Jr. Vice President, Controller | SSale | −2.15K | $29.96 | $64.5K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Angelini Laura Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Bastarrica Air A. Jr. Vice President, Controller | SSale | −1.96K | $30.26 | $59.4K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Li Ye Jane Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | WISHART MICHAEL S Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Cardew Jason M Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Crowley Daniel J Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | BARNES KEITH Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | SHAVERS CHERYL L Director | AAward | +6.26K | $30.33 | $190K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | Bastarrica Air A. Jr. Vice President, Controller | SSale | −2.26K | $30.68 | $69.4K | No | Form 4 ↗ |
| 2026-04-29 | 2026-02-03 | Li Ye Jane Director | GGift | −7.42K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-29 | 2026-02-03 | Li Ye Jane, Director | GGift | +7.42K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-26 | PERNA ROBERT J SVP, General Counsel & Sec | SSale | −9.22K | $27.88 | $257K | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | PERNA ROBERT J, SVP, General Counsel & Sec | SSale | −7.42K | $28.10 | $209K | No | Form 4 ↗ |
| 2026-02-11 | 2026-02-10 | Anderson John S. Senior Vice President & CFO | SSale | −8.99K | $27.00 | $243K | No | Form 4 ↗ |
| 2026-02-11 | 2026-02-10 | Anderson John S., Senior Vice President & CFO | SSale | −16.0K | $27.13 | $434K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-10 | PERNA ROBERT J SVP, General Counsel & Sec | SSale | −3.17K | $27.09 | $85.8K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr. Vice President, Controller | FTax | −6.96K | $27.24 | $190K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr., Vice President, Controller | MExercise | +8.14K | $20.60 | $168K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr., Vice President, Controller | FTax | −10.3K | $27.24 | $281K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr., Vice President, Controller | MExercise | +11.9K | $21.14 | $252K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr., Vice President, Controller | SSale | −9.57K | $26.75 | $256K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Bastarrica Air A. Jr., Vice President, Controller | SSale | −2.43K | $26.82 | $65.3K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Cabrera Raymond D. SVP, Chief HR Officer | SSale | −10.0K | $26.75 | $268K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-09 | Giesecke Daniel J. Senior Vice President & COO | SSale | −15.9K | $27.22 | $432K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | Bastarrica Air A. Jr. Vice President, Controller | FTax | −2.34K | $26.98 | $63.1K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | Anderson John S. Senior Vice President & CFO | FTax | −5.27K | $26.98 | $142K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | Cabrera Raymond D. SVP, Chief HR Officer | FTax | −2.59K | $26.98 | $69.8K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | Giesecke Daniel J. Senior Vice President & COO | FTax | −3.33K | $26.98 | $89.9K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | Niew Jeffrey President & CEO | FTax | −13.7K | $26.98 | $371K | No | Form 4 ↗ |
| 2026-02-10 | 2026-02-06 | PERNA ROBERT J SVP, General Counsel & Sec | FTax | −2.95K | $26.98 | $79.5K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-06 | Niew Jeffrey President & CEO | SSale | −25.0K | $27.00 | $675K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-06 | Niew Jeffrey, President & CEO | SSale | −25.0K | $26.50 | $663K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-06 | Niew Jeffrey, President & CEO | SSale | −25.0K | $26.00 | $650K | Yes (planned) | Form 4 ↗ |
| 2026-02-02 | 2026-01-30 | Anderson John S. Senior Vice President & CFO | FTax | −1.70K | $24.24 | $41.1K | No | Form 4 ↗ |
| 2026-02-02 | 2026-01-30 | Anderson John S., Senior Vice President & CFO | FTax | −1.70K | $24.24 | $41.1K | No | Form 4 ↗ |
| 2026-02-02 | 2026-01-30 | Anderson John S., Senior Vice President & CFO | FTax | −1.70K | $24.24 | $41.1K | No | Form 4 ↗ |
| 2026-02-02 | 2026-01-30 | Anderson John S., Senior Vice President & CFO | FTax | −2.21K | $24.24 | $53.5K | No | Form 4 ↗ |
| 2026-02-02 | 2026-01-30 | Anderson John S., Senior Vice President & CFO | AAward | +17.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-20 | 2026-01-15 | Niew Jeffrey President & CEO | SSale | −25.0K | $24.50 | $613K | Yes (planned) | Form 4 ↗ |
| 2026-01-20 | 2026-01-15 | Niew Jeffrey, President & CEO | SSale | −25.0K | $25.00 | $625K | Yes (planned) | Form 4 ↗ |
| 2025-12-12 | 2025-12-11 | Giesecke Daniel J. Senior Vice President & COO | FTax | −26.2K | $24.04 | $630K | No | Form 4 ↗ |
| 2025-12-12 | 2025-12-11 | Giesecke Daniel J., Senior Vice President & COO | MExercise | +31.5K | $16.77 | $528K | No | Form 4 ↗ |
| 2025-12-12 | 2025-12-10 | Niew Jeffrey President & CEO | SSale | −25.0K | $24.00 | $600K | Yes (planned) | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | WISHART MICHAEL S Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | SHAVERS CHERYL L Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | MACLEOD DONALD Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | Li Ye Jane Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | HIRSCH DIDIER Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | Crowley Daniel J Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | Brackett Erania Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
| 2024-05-02 | 2024-04-30 | BARNES KEITH Director | AAward | +10.7K | $15.83 | $170K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also KN’s full analysis or the market-wide insider trading feed. The tabs above jump to KN’s other SEC data.
Source: SEC Form 4 filings for KN, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.