Knowles Corporation
A maker of tiny electronic components, Knowles supplies high-performance capacitors and RF filters for defense and industrial gear, plus the balanced armature speakers and microphones tucked inside hearing aids. Founded in 1946 by acoustical engineer Hugh S. Knowles, the company pioneered the miniature microphone that let hearing aids shrink to nearly invisible devices. It became an independent, publicly traded company in 2014 when Dover Corporation spun it off.
Granted 3.03M · Bought 6.5K · Sold 1.28M
Granted 818.1K · Bought 1.5K · Sold 296.0K
Granted 245.3K · Sold 107.0K
Granted 552.2K · Bought 5.0K · Sold 156.3K
Granted 132.1K · Sold 68.8K
Granted 114.0K · Bought 35.0K
Granted 121.1K · Bought 19.2K
Granted 102.0K · Sold 22.7K
Granted 482.8K · Sold 150.4K
Granted 54.7K · Bought 22.5K
Granted 83.6K · Bought 15.9K
Granted 94.3K · Bought 1.3K
Granted 39.4K · Bought 20.6K
Granted 76.7K
Granted 62.0K · Bought 5.8K
Granted 57.1K · Bought 2.0K
Granted 121.3K · Sold 35.0K
Granted 172.6K · Sold 61.1K
Granted 43.1K · Bought 6.0K
Granted 107.0K · Sold 64.6K
Granted 34.1K · Bought 9.0K
Granted 88.4K · Sold 37.5K
Granted 36.4K
Granted 42.4K
Granted 31.4K
Granted 30.3K
Granted 30.6K
Granted 21.2K
Granted 16.6K
Granted 17.2K
Granted 15.9K
Granted 11.9K · Bought 1.3K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Niew JeffreyPresident & CEO, Director · 116 transactions | — | 1.03M | 3.03M | 6.5K | 1.28M |
| Anderson John S.Senior Vice President & CFO · 113 transactions | — | 234.6K | 818.1K | 1.5K | 296.0K |
| Perna Robert JSVP, General Counsel & Sec · 47 transactions | — | 177.2K | 245.3K | — | 107.0K |
| Giesecke Daniel J.Senior Vice President & COO · 90 transactions | — | 175.9K | 552.2K | 5.0K | 156.3K |
| Barnes KeithDirector · 23 transactions | — | 161.4K | 132.1K | — | 68.8K |
| Macleod DonaldDirector · 15 transactions | — | 149.0Kas of Apr 2024 | 114.0K | 35.0K | — |
| Hirsch DidierDirector · 20 transactions | — | 140.3Kas of Apr 2025 | 121.1K | 19.2K | — |
| Li Ye JaneDirector · 17 transactions | — | 139.7K | 102.0K | — | 22.7K |
| Cabrera Raymond D.SVP, Chief HR Officer · 84 transactions | — | 134.1K | 482.8K | — | 150.4K |
| Polacek Michael S.President, Intelligent Audio · 25 transactions | — | 116.8Kas of Feb 2020 | 54.7K | 22.5K | — |
| Jankov Ronald StevenDirector · 11 transactions | — | 99.5Kas of Apr 2021 | 83.6K | 15.9K | — |
| Eul HermannDirector · 12 transactions | — | 92.1Kas of Jan 2024 | 94.3K | 1.3K | — |
| Ergas Jean PierreDirector · 7 transactions | — | 81.7Kas of May 2017 | 39.4K | 20.6K | — |
| Wishart Michael SDirector · 8 transactions | — | 76.7K | 76.7K | — | — |
| Lochridge Richard KDirector · 8 transactions | — | 75.0Kas of Jun 2019 | 62.0K | 5.8K | — |
| Crowley Daniel JDirector · 7 transactions | — | 59.1K | 57.1K | 2.0K | — |
| Scherp ChristianPresident, Performance Audio · 32 transactions | — | 53.9Kas of Feb 2020 | 121.3K | — | 35.0K |
| Bastarrica Air A. Jr.Vice President, Controller · 57 transactions | — | 47.6K | 172.6K | — | 61.1K |
| Dickinson Paul MPresident, Intelligent Audio · 8 transactions | — | 46.9Kas of Mar 2016 | 43.1K | 6.0K | — |
| Shavers Cheryl LDirector · 18 transactions | — | 42.3K | 107.0K | — | 64.6K |
| Walker Gordon A.President, Acoustics · 7 transactions | — | 41.7Kas of Mar 2016 | 34.1K | 9.0K | — |
| Jackson Thomas GSenior VP & General Counsel · 29 transactions | — | 39.5Kas of Feb 2019 | 88.4K | — | 37.5K |
| Cardew Jason MDirector · 4 transactions | — | 36.4K | 36.4K | — | — |
| Mittelman Bryan E.VP, Controller · 17 transactions | — | 34.4Kas of Mar 2018 | 42.4K | — | — |
| Brackett EraniaDirector · 3 transactions | — | 31.4Kas of Apr 2024 | 31.4K | — | — |
| Angelini LauraDirector · 4 transactions | — | 30.3K | 30.3K | — | — |
| Adell Michael A.SVP- Emerging Technologies · 5 transactions | — | 28.1Kas of Mar 2016 | 30.6K | — | — |
| Bernard AlexisSr. Vice President, CTO · 3 transactions | — | 26.3Kas of Feb 2016 | 21.2K | — | — |
| Cremin Robert WDirector · 3 transactions | — | 23.6Kas of May 2015 | 16.6K | — | — |
| Mayer Steven FDirector · 1 transaction | — | 17.2Kas of May 2019 | 17.2K | — | — |
| Wightman David W.President, Precision Devices · 5 transactions | — | 14.4Kas of Mar 2016 | 15.9K | — | — |
| Wynn James F.SVP, Global Supply Chain · 4 transactions | — | 13.3Kas of Jun 2015 | 11.9K | 1.3K | — |
| DOVER Corp10% owner · 1 transaction | — | 0as of Feb 2014 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -2.13M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.