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Knowles Corp

KN · Household Audio & Video Equipment · 85.6M shares · -0%/yr ↓ buyback · EDGAR filings ↗
Net buyback after stock comp: $18M (gross $48M, SBC $29M)

Reference price $37.33 · est. market cap ~$3.2B — last insider sale, 2026-05-27 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)

Grade

B72

Above-average specialty electronic components maker with strong margins and ROA but only mid-pack ROE and heavy customer concentration.

Strengths

Risks

Notable findings

Quarterly revenue

2025-06-30 · $146M2025-09-30 · $153M2025-12-31 · $162M2026-03-31 · $153M

Last 4 quarters · from SEC filings.

Key metrics

Gross margin
43.2%
Operating margin
11.9%
Net margin
7.5%
Return on equity
5.7%
Return on assets
4.2%
ROIC
6.2%
Revenue growth (QoQ)
-5.6%
Debt / equity
0.1×
Net debt / EBITDA
-0.2×
Current ratio
2.8×
EBITDA
$107M
Tangible book value
$364M
Cash & investments
$138M
Stock comp / revenue
4.8%

Insider transactions · last 18 months

DateInsiderTypeSharesPrice
2026-05-27Giesecke Daniel J.Sell10K$37.33
2026-05-27Giesecke Daniel J.Sell10K$37.31
2026-05-13Cabrera Raymond D.Tax withheld18K$36.62
2026-05-13Cabrera Raymond D.Option exercise25K$16.77
2026-05-05Niew JeffreyOption exercise143K$16.77
2026-05-05Niew JeffreySell143K$33.25
2026-04-30Bastarrica Air A. Jr.Sell3.6K$30.91
2026-04-29Bastarrica Air A. Jr.Sell2.2K$29.96
2026-04-28SHAVERS CHERYL LGrant6.3K$30.33
2026-04-28Angelini LauraGrant6.3K$30.33
2026-04-28Bastarrica Air A. Jr.Sell2.0K$30.26
2026-04-28Cardew Jason MGrant6.3K$30.33
2026-04-28Crowley Daniel JGrant6.3K$30.33
2026-04-28BARNES KEITHGrant6.3K$30.33
2026-04-28Li Ye JaneGrant6.3K$30.33
2026-04-28WISHART MICHAEL SGrant6.3K$30.33
2026-04-27Bastarrica Air A. Jr.Sell2.3K$30.68
2026-02-26PERNA ROBERT JSell9.2K$27.88
2026-02-24PERNA ROBERT JSell7.4K$28.10
2026-02-20Cabrera Raymond D.Tax withheld3.1K$27.54
2026-02-20PERNA ROBERT JTax withheld3.1K$27.54
2026-02-20SHAVERS CHERYL LSell3.7K$27.40
2026-02-20Niew JeffreyTax withheld17K$27.54
2026-02-20Giesecke Daniel J.Tax withheld4.0K$27.54
2026-02-20Bastarrica Air A. Jr.Tax withheld2.3K$27.54
2026-02-20Anderson John S.Tax withheld5.7K$27.54
2026-02-19BARNES KEITHSell41K$27.16
2026-02-18Niew JeffreyTax withheld16K$27.16
2026-02-18Bastarrica Air A. Jr.Tax withheld2.1K$27.16
2026-02-18Anderson John S.Tax withheld5.2K$27.16
2026-02-18Cabrera Raymond D.Tax withheld2.8K$27.16
2026-02-18Giesecke Daniel J.Tax withheld3.6K$27.16
2026-02-18PERNA ROBERT JTax withheld2.8K$27.16
2026-02-17PERNA ROBERT JGrant35K$27.14
2026-02-17PERNA ROBERT JTax withheld15K$27.14
2026-02-17PERNA ROBERT JGrant14K
2026-02-17Anderson John S.Grant64K$27.14
2026-02-17Cabrera Raymond D.Grant30K$27.14
2026-02-17Cabrera Raymond D.Tax withheld13K$27.14
2026-02-17Cabrera Raymond D.Grant14K
2026-02-17Anderson John S.Tax withheld29K$27.14
2026-02-17Giesecke Daniel J.Grant40K$27.14
2026-02-17Giesecke Daniel J.Tax withheld18K$27.14
2026-02-17Giesecke Daniel J.Grant17K
2026-02-17Anderson John S.Grant24K
2026-02-17Niew JeffreyGrant213K$27.14
2026-02-17Niew JeffreyTax withheld94K$27.14
2026-02-17Niew JeffreyGrant73K
2026-02-17Bastarrica Air A. Jr.Grant11K
2026-02-10Anderson John S.Sell16K$27.13
2026-02-10BARNES KEITHGift41K
2026-02-10BARNES KEITHGift41K
2026-02-10PERNA ROBERT JSell3.2K$27.09
2026-02-10Anderson John S.Sell9.0K$27.00
2026-02-09Bastarrica Air A. Jr.Sell9.6K$26.75
2026-02-09Bastarrica Air A. Jr.Sell2.4K$26.82
2026-02-09Bastarrica Air A. Jr.Option exercise12K$21.14
2026-02-09Bastarrica Air A. Jr.Tax withheld10K$27.24
2026-02-09Bastarrica Air A. Jr.Option exercise8.1K$20.60
2026-02-09Bastarrica Air A. Jr.Tax withheld7.0K$27.24
2026-02-09Cabrera Raymond D.Sell10K$26.75
2026-02-09Giesecke Daniel J.Sell16K$27.22
2026-02-06Bastarrica Air A. Jr.Tax withheld2.3K$26.98
2026-02-06Cabrera Raymond D.Tax withheld2.6K$26.98
2026-02-06Giesecke Daniel J.Tax withheld3.3K$26.98
2026-02-06Niew JeffreyTax withheld14K$26.98
2026-02-06PERNA ROBERT JTax withheld2.9K$26.98
2026-02-06Niew JeffreySell25K$26.00
2026-02-06Niew JeffreySell25K$26.50
2026-02-06Niew JeffreySell25K$27.00
2026-02-06Anderson John S.Tax withheld5.3K$26.98
2026-02-03Niew JeffreySell25K$25.50
2026-02-03Li Ye JaneGift7.4K
2026-02-03Li Ye JaneGift7.4K
2026-01-30Anderson John S.Tax withheld1.7K$24.24
2026-01-30Anderson John S.Tax withheld1.7K$24.24
2026-01-30Anderson John S.Tax withheld1.7K$24.24
2026-01-30Anderson John S.Tax withheld2.2K$24.24
2026-01-30Anderson John S.Grant17K
2026-01-15Niew JeffreySell25K$25.00
2026-01-15Niew JeffreySell25K$24.50
2025-12-11Giesecke Daniel J.Tax withheld26K$24.04
2025-12-11Giesecke Daniel J.Option exercise32K$16.77
2025-12-10Niew JeffreySell25K$24.00
2025-12-04Niew JeffreySell25K$23.50
2025-11-25Anderson John S.Sell10K$21.95
2025-11-25Anderson John S.Sell1.4K$22.40
2025-11-21Anderson John S.Sell10K$20.90
2025-11-21Anderson John S.Sell10K$20.80
2025-11-21Anderson John S.Sell10K$21.50
2025-11-21Anderson John S.Sell10K$20.90
2025-11-21Anderson John S.Sell10K$20.80
2025-11-21Anderson John S.Sell10K$21.50
2025-11-03Niew JeffreySell38K$23.55
2025-11-03Niew JeffreyOption exercise38K$16.07
2025-10-31Niew JeffreyOption exercise98K$16.07
2025-10-31Niew JeffreySell98K$23.71
2025-08-25Cabrera Raymond D.Option exercise24K$16.07
2025-08-25Cabrera Raymond D.Tax withheld21K$21.35
2025-08-22Giesecke Daniel J.Option exercise30K$16.07
2025-08-22Giesecke Daniel J.Tax withheld26K$21.57
2025-08-13Anderson John S.Option exercise42K$16.77
2025-08-13Anderson John S.Tax withheld37K$21.01
2025-08-05SHAVERS CHERYL LSell21K$20.02
2025-07-29Bastarrica Air A. Jr.Sell10K$20.94
2025-07-28PERNA ROBERT JOption exercise27K$17.39
2025-07-28PERNA ROBERT JSell27K$20.47
2025-07-28PERNA ROBERT JOption exercise29K$16.77
2025-07-28PERNA ROBERT JSell29K$20.47
2025-05-15Cabrera Raymond D.Sell5.3K$17.25
2025-05-15Cabrera Raymond D.Sell208$17.26
2025-04-29Crowley Daniel JGrant12K$15.98
2025-04-29Cardew Jason MGrant12K$15.98
2025-04-29BARNES KEITHGrant12K$15.98
2025-04-29WISHART MICHAEL SGrant12K$15.98
2025-04-29SHAVERS CHERYL LGrant12K$15.98
2025-04-29Angelini LauraGrant12K$15.98
2025-04-29Li Ye JaneGrant12K$15.98
2025-04-29HIRSCH DIDIERGrant12K$15.98
2025-03-20PERNA ROBERT JGift9.2K
2025-03-20PERNA ROBERT JGift9.2K
2025-02-26PERNA ROBERT JSell10K$17.02
2025-02-20PERNA ROBERT JTax withheld3.1K$17.84
2025-02-20Niew JeffreyTax withheld17K$17.84
2025-02-20Giesecke Daniel J.Tax withheld4.0K$17.84
2025-02-20Cabrera Raymond D.Tax withheld3.1K$17.84
2025-02-20Bastarrica Air A. Jr.Tax withheld2.3K$17.84
2025-02-20Anderson John S.Tax withheld5.5K$17.84
2025-02-18Anderson John S.Grant28K$18.34
2025-02-18PERNA ROBERT JGrant17K$18.34
2025-02-18PERNA ROBERT JTax withheld7.3K$18.34
2025-02-18PERNA ROBERT JGrant19K
2025-02-18Bastarrica Air A. Jr.Grant16K
2025-02-18Giesecke Daniel J.Grant19K$18.34
2025-02-18Giesecke Daniel J.Tax withheld8.4K$18.34
2025-02-18Giesecke Daniel J.Grant25K
2025-02-18Cabrera Raymond D.Tax withheld6.3K$18.34
2025-02-18Cabrera Raymond D.Grant14K$18.34
2025-02-18Cabrera Raymond D.Grant19K
2025-02-18Niew JeffreyGrant96K$18.34
2025-02-18Niew JeffreyTax withheld43K$18.34
2025-02-18Niew JeffreyGrant108K
2025-02-18Anderson John S.Tax withheld12K$18.34
2025-02-18Anderson John S.Grant35K
2025-02-07Anderson John S.Tax withheld4.0K$18.22
2025-02-07PERNA ROBERT JTax withheld2.5K$18.22
2025-02-07Niew JeffreyTax withheld12K$18.22
2025-02-07Giesecke Daniel J.Tax withheld2.8K$18.22
2025-02-07Cabrera Raymond D.Tax withheld2.2K$18.22
2025-02-07Bastarrica Air A. Jr.Tax withheld1.4K$18.22
2025-02-06Bastarrica Air A. Jr.Tax withheld2.2K$18.56
2025-02-06Niew JeffreyTax withheld14K$18.56
2025-02-06Giesecke Daniel J.Tax withheld3.4K$18.56
2025-02-06Cabrera Raymond D.Tax withheld2.6K$18.56
2025-02-06PERNA ROBERT JTax withheld3.0K$18.56
2025-02-06Anderson John S.Tax withheld5.1K$18.56
2025-02-05Li Ye JaneGift20K
2025-02-05Li Ye JaneGift20K

All non-derivative Form 4 activity (SEC), newest first.

Notable events (8-K)

DateItems
2026-04-29Shareholder votefiling ↗
2026-04-23ResultsExhibitsfiling ↗
2026-02-20Exec/director changeExhibitsfiling ↗
2026-02-05ResultsExhibitsfiling ↗
2025-10-23ResultsExhibitsfiling ↗
2025-07-24ResultsExhibitsfiling ↗
2025-05-13Reg FDExhibitsfiling ↗
2025-05-01Shareholder votefiling ↗

Recent filings

FormFiledPeriodAccession
8-K2026-04-292026-04-280001587523-26-000021 ↗
10-Q2026-04-282026-03-310001587523-26-000018 ↗
8-K2026-04-232026-04-230001587523-26-000016 ↗
8-K2026-02-202026-02-170001587523-26-000007 ↗
10-K2026-02-092025-12-310001587523-26-000005 ↗
8-K2026-02-052026-02-050001587523-26-000002 ↗
10-Q2025-10-282025-09-300001587523-25-000079 ↗
8-K2025-10-232025-10-230001587523-25-000077 ↗
10-Q2025-07-292025-06-300001587523-25-000066 ↗
8-K2025-07-242025-07-240001587523-25-000064 ↗
8-K2025-05-132025-05-130001587523-25-000057 ↗
8-K2025-05-012025-04-290001587523-25-000046 ↗