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KNKnowles Corp · Insider ownership research

Knowles Corp insiders sold $28.3M in the past 12 months. How much of their stake is that?

58% was sold under disclosed trading plans, 42% with no plan disclosed. The largest seller, Jeffrey Niew (President & CEO, Director), sold $20.8M. 31% of these sales were shares from exercising options.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why

Updated Oct 16, 2026 from SEC filings · covers Oct 17, 2025 to Oct 16, 2026
$12.0M
sold with no plan disclosed, past 12 months
58%
of sales were under disclosed trading plans, past 12 months
8 of 14
officers and directors sold shares, past 12 months
Is this normal? More than usual: about 4x the 5-year average. 8 insiders sold; the average is 5 a year. Year by year
Latest filing: Filed Aug 19 for a sale on Aug 17. Cheryl Shavers sold 6.6K shares ($260K) under a disclosed plan. Filing
SEC ownership filings: 51 filed in the 12 months to Oct 16, 2026; 565 on record since Feb 10, 2014 · See the evidence

What stands out

Two insiders sold $9.1M with no disclosed plan: Jeffrey Niew ($8.0M) and Keith Barnes ($1.1M). The filings don't state a reason.Jeffrey Niew: largest such sale, May 5, 2026 · Keith Barnes: largest such sale, Feb 19, 2026

A share of stake is shown for 0 of the 8 officers and directors who sold. 14 are left out

i
Left out: Jeffrey Niew, John Anderson, Daniel Giesecke, Didier Hirsch, Raymond Cabrera, Keith Barnes, Robert Perna, Ye Li, Michael Wishart, Air Bastarrica Jr., Daniel Crowley, Cheryl Shavers, Jason Cardew and Laura Angelini (share of stake is being verified).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.

Jeffrey Niew
President & CEO, Director
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$20.8M62% planned 38% no plan disclosed
John Anderson
Senior Vice President & CFO
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$3.1M78% planned 22% no plan disclosed
Daniel Giesecke
Senior Vice President & COO
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$1.2M64% planned 36% no plan disclosed
Keith Barnes
Director
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$1.1MNo plan disclosed
Air Bastarrica Jr.
Vice President, Controller
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$626KNo plan disclosed
All 8 sellers

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planNo plan disclosedOne dollar scale for every month; the tallest bar is labeled
Oct 2025: $2.3M no plan disclosedOctNov 2025: $884K under a disclosed planNov 2025: $904K no plan disclosedNovDec 2025: $1.2M under a disclosed planDecJan 2026: $1.2M under a disclosed planJanFeb 2026: $2.6M under a disclosed planFeb 2026: $3.5M no plan disclosedFebMarApr 2026: $305K no plan disclosedAprMay 2026: $754K under a disclosed planMay 2026: $4.7M no plan disclosedMayJunJul 2026: $224K no plan disclosedJulAug 2026: $9.6M under a disclosed plan$9.6MAugSepOct

Recent activity

Past 30 days, Sep 17, 2026 to Oct 16, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

Aug 17, 2026Cheryl Shavers sold 6.6K shares ($260K) under a disclosed trading plan.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Cheryl Shavers
Director
6,618$39.27n/an/aAug 17, 2026Aug 19, 2026

Common questions

Is the Knowles Corp CEO selling stock?

Yes. Jeffrey Niew sold 680K shares ($20.8M) in the past 12 months, 62% of it under a trading plan disclosed in the filings.

Why are Knowles Corp insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 58% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 42% had no disclosed plan. A trading plan schedules sales in advance.

Are any Knowles Corp insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

The evidence

Who sold8 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Jeffrey Niew
President & CEO, Director
$20.8M
680K shares
Not confirmed
share of stake is being verified. Why
62% under a disclosed plan 38% no plan disclosed
John Anderson
Senior Vice President & CFO
$3.1M
106K shares
Not confirmed
share of stake is being verified. Why
78% under a disclosed plan 22% no plan disclosed
Daniel Giesecke
Senior Vice President & COO
$1.2M
36K shares
Not confirmed
share of stake is being verified. Why
64% under a disclosed plan 36% no plan disclosed
Keith Barnes
Director
$1.1M
41K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Air Bastarrica Jr.
Vice President, Controller
$626K
22K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Robert Perna
SVP, General Counsel & Sec
$551K
20K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Raymond Cabrera
SVP, Chief HR Officer
$492K
16K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Cheryl Shavers
Director
$361K
10K shares
Not confirmed
share of stake is being verified. Why
72% under a disclosed plan 28% no plan disclosed
The full ownership picture0 of 14 officers and directors confirmed

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 16, 2025SoldHeld Oct 16, 2026Still held
Jeffrey Niew
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jeffrey Niew are complete.
President & CEO, Director
n/a−680Kn/an/a
Vesting, gifts, unvested awards and holding lines for Jeffrey Niew

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jeffrey Niew are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−141Kwithheld by the company for taxes
John Anderson
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for John Anderson are complete.
Senior Vice President & CFO
n/a−106Kn/an/a
Vesting, gifts, unvested awards and holding lines for John Anderson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for John Anderson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−52Kwithheld by the company for taxes
Daniel Giesecke
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Daniel Giesecke are complete.
Senior Vice President & COO
n/a−36Kn/an/a
Vesting, gifts, unvested awards and holding lines for Daniel Giesecke

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Daniel Giesecke are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−55Kwithheld by the company for taxes
Didier Hirsch
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Didier Hirsch are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Didier Hirsch

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Didier Hirsch are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Raymond Cabrera
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Raymond Cabrera are complete.
SVP, Chief HR Officer
n/a−16Kn/an/a
Vesting, gifts, unvested awards and holding lines for Raymond Cabrera

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Raymond Cabrera are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−39Kwithheld by the company for taxes
Keith Barnes
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Keith Barnes are complete.
Director
n/a−41Kn/an/a
Vesting, gifts, unvested awards and holding lines for Keith Barnes

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Keith Barnes are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Robert Perna
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Robert Perna are complete.
SVP, General Counsel & Sec
n/a−20Kn/an/a
Vesting, gifts, unvested awards and holding lines for Robert Perna

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Robert Perna are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−24Kwithheld by the company for taxes
Ye Li
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Ye Li are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Ye Li

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Ye Li are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Michael Wishart
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Michael Wishart are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Michael Wishart

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michael Wishart are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Air Bastarrica Jr.
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Air Bastarrica Jr. are complete.
Vice President, Controller
n/a−22Kn/an/a
Vesting, gifts, unvested awards and holding lines for Air Bastarrica Jr.

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Air Bastarrica Jr. are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−24Kwithheld by the company for taxes
Daniel Crowley
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Daniel Crowley are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Daniel Crowley

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Daniel Crowley are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Cheryl Shavers
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Cheryl Shavers are complete.
Director
n/a−10Kn/an/a
Vesting, gifts, unvested awards and holding lines for Cheryl Shavers

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Cheryl Shavers are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Jason Cardew
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jason Cardew are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Jason Cardew

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jason Cardew are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Laura Angelini
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Laura Angelini are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Laura Angelini

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Laura Angelini are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Holdings and share of stake for Knowles Corp are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.

What explains the selling$28.3M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $28.3M across 931,392 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($12.0M), including tax-related sales outside a plan.

No plan disclosed · $12.0M

Sales with no 10b5-1 plan and no tax reference in the filing. $8.0M of it is Jeffrey Niew. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Jeffrey Niew, May 5, 2026

Taxes

335,826 shares ($9.2M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Jeffrey Niew
President & CEO, Director
680K$20.8M62%74%Oct 31, 2025 to Aug 14, 2026
John Anderson
Senior Vice President & CFO
106K$3.1M78%11%Nov 21, 2025 to Aug 13, 2026
Daniel Giesecke
Senior Vice President & COO
36K$1.2M64%4%Feb 9, 2026 to May 27, 2026
Keith Barnes
Director
41K$1.1M0%4%Feb 19, 2026 to Feb 19, 2026
Air Bastarrica Jr.
Vice President, Controller
22K$626K0%2%Feb 9, 2026 to Apr 30, 2026
Robert Perna
SVP, General Counsel & Sec
20K$551K0%2%Feb 10, 2026 to Feb 26, 2026
Raymond Cabrera
SVP, Chief HR Officer
16K$492K0%2%Feb 9, 2026 to Jul 27, 2026
Cheryl Shavers
Director
10K$361K72%1%Feb 20, 2026 to Aug 17, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$2.3M$0$0$2.3M
Nov 2025$1.8M$884K$0$904K
Dec 2025$1.2M$1.2M$0$0
Jan 2026$1.2M$1.2M$0$0
Feb 2026$6.1M$2.6M$0$3.5M
Mar 2026$0$0$0$0
Apr 2026$305K$0$0$305K
May 2026$5.5M$754K$0$4.7M
Jun 2026$0$0$0$0
Jul 2026$224K$0$0$224K
Aug 2026$9.6M$9.6M$0$0
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 4x the 5-year average. 8 insiders sold; the average is 5 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 16, 2026
Latest 12 months
931K8$28.3M
Oct 16, 2025
1 year earlier
301K7$5.8M
Oct 16, 2024
2 years earlier
50K4$873K
Oct 17, 2023
3 years earlier
21K2$342K
Oct 17, 2022
4 years earlier
678K7$14.4M
Oct 17, 2021
5 years earlier
277K7$5.7M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty14 officers and directors not confirmed

Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Knowles Corp are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology565 filings on record, 51 filed in the 12-month period, and how we read them

All 565 Forms 3, 4 and 5 on record for Knowles Corp (SEC CIK 1587523), filed from Feb 10, 2014 to Aug 19, 2026; 51 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (23)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Donald MacleodMay 2, 2024148,982 shares, last reported balance as of Apr 30, 2024
Erania BrackettMay 2, 202431,363 shares, last reported balance as of Apr 30, 2024
Hermann EulJan 3, 202492,084 shares, last reported balance as of Jan 1, 2024
Ronald JankovApr 29, 202199,453 shares, last reported balance as of Apr 27, 2021
Christian ScherpMar 3, 202053,857 shares, last reported balance as of Feb 28, 2020
Michael PolacekFeb 14, 2020116,793 shares, last reported balance as of Feb 12, 2020
Steven MayerJun 18, 201917,166 shares, last reported balance as of May 31, 2019
Richard LochridgeJun 4, 201974,960 shares, last reported balance as of May 31, 2019
Thomas JacksonMar 4, 201939,534 shares, last reported balance as of Feb 28, 2019
Bryan MittelmanMar 9, 201834,391 shares, last reported balance as of Mar 7, 2018
Jean ErgasMay 4, 201781,684 shares, last reported balance as of May 2, 2017
Paul DickinsonMar 9, 201646,885 shares, last reported balance as of Mar 7, 2016
Gordon WalkerMar 9, 201641,672 shares, last reported balance as of Mar 7, 2016
David WightmanMar 9, 201614,391 shares, last reported balance as of Mar 7, 2016
Michael AdellMar 9, 201628,110 shares, last reported balance as of Mar 7, 2016
Alexis BernardFeb 19, 201626,342 shares, last reported balance as of Feb 17, 2016
James WynnJun 2, 201513,271 shares, last reported balance as of May 29, 2015
Robert CreminMay 7, 201523,600 shares, last reported balance as of May 5, 2015
DOVER CorpFeb 28, 2014No balance on record
Joseph SchmidtNo balance on record
Don SuhNo balance on record
Ivonne CabreraNo balance on record
Kathryn IngrahamNo balance on record

Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.