Comparable stake leader
BlackRock, Inc.
SEC ownership of Knowles Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001587523.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
27 May 2026
- Public ticker
- KN on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
27 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001587523
- Issuer location
- Itasca, IL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Knowles Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
27 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
VANGUARD PORTFOLIO MANAGEMENT LLC
7.8%
Neuberger Berman Group LLC
5.8%
VANGUARD CAPITAL MANAGEMENT LLC
5%
ARIEL INVESTMENTS, LLC
4.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
15%
from 13D/G
|
$344,589,985
13,418,613 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
7.8%
|
$172,604,268
6,721,350 shares
|
$0 | 31 Mar 2026 |
| Neuberger Berman Group LLC |
13F
13D/G
Company
|
5.8%
from 13D/G
|
$147,581,239
5,746,933 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5%
|
$110,474,846
4,301,980 shares
|
$0 | 31 Mar 2026 |
| ARIEL INVESTMENTS, LLC |
13F
13D/G
Company
|
4.8%
from 13D/G
|
$98,068,376
3,818,862 shares
|
— | 31 Mar 2026 |
| FRANKLIN MUTUAL ADVISERS LLC |
13D/G
|
1.5%
|
$26,971,584
1,258,590 shares
|
-$70,699,134 | 31 Dec 2025 |
| Jeffrey Niew |
3/4/5
President & CEO, Director
|
1%
|
$29,383,656
883,719 shares
|
-$13,034,428 | 05 May 2026 |
| Poa John Anderson |
3/4/5
Senior Vice President & CFO
|
0.27%
|
$6,460,773
234,596 shares
|
-$2,192,837 | 20 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$20,855,014.
Buys
$0
Insiders: 0
Sells
$20,855,014
Insiders: 8
Net
-$20,855,014
Shares: -795,773
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 795,773
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 173,058 | $0 | $5,809,157 | -$5,809,157 |
| 3-6 | 0 | 277,442 | $0 | $7,328,291 | -$7,328,291 |
| 6-9 | 0 | 258,096 | $0 | $5,937,689 | -$5,937,689 |
| 9-12 | 0 | 87,177 | $0 | $1,779,877 | -$1,779,877 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to Knowles Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Jeffrey Niew
Net 12M change
-$20,855,014
Latest report
27 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jeffrey Niew | President & CEO, Director | $29,383,656 | -$13,034,428 | -31% | Filing P/S | 05 May 2026 |
| Daniel J. Giesecke | Senior Vice President & COO | $6,561,150 | -$1,186,293 | -15% | Filing P/S | 27 May 2026 |
| Poa John Anderson | Senior Vice President & CFO | $6,460,773 | -$2,192,837 | -25% | Mixed | 20 Feb 2026 |
| Poa Raymond D. Cabrera | SVP, Chief HR Officer | $3,444,278 | -$267,500 | -7.2% | Median | 13 May 2026 |
| Poa Donald Macleod | Director | $2,358,385 | Mixed | 30 Apr 2024 | ||
| PERNA ROBERT J | SVP, General Counsel & Sec | $2,255,643 | -$1,700,522 | -43% | Filing P/S | 24 Feb 2026 |
| Didier Hirsch | Director | $2,241,978 | Mixed | 29 Apr 2025 | ||
| Ye Jane Li | Director | $2,048,442 | Mixed | 03 Feb 2026 | ||
| Poa Michael Wishart | Director | $1,970,169 | Median | 28 Apr 2026 | ||
| Poa Keith Barnes | Director | $1,625,518 | -$1,114,864 | -41% | Median | 28 Apr 2026 |
| Poa Daniel Crowley | Director | $1,517,251 | Median | 28 Apr 2026 | ||
| Poa Air A. Bastarrica Jr. | Vice President, Controller | $1,470,357 | -$835,829 | -36% | Filing P/S | 30 Apr 2026 |
| Poa Hermann Eul | Director | $1,419,935 | Mixed | 01 Jan 2024 | ||
| Cheryl L. Shavers | Director | $1,087,316 | -$522,741 | -32% | Median | 28 Apr 2026 |
| Jason M. Cardew | Director | $935,111 | Median | 28 Apr 2026 | ||
| Poa Laura Angelini | Director | $778,386 | Median | 28 Apr 2026 | ||
| Poa Erania Brackett | Director | $496,476 | Mixed | 30 Apr 2024 |
Recent insider transactions for Knowles Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Daniel J. Giesecke | KN | Common Stock | Sale | -10.3% | $753,903 | $37.32 | -20,201 | 175,855 | 27 May 2026 | Direct |
| Poa Raymond D. Cabrera | KN | Common Stock | Tax liability | -11.6% | -17,599 | 134,123 | 13 May 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Common Stock | Options Exercise | 19.9% | 25,210 | 151,722 | 13 May 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Non-Qualified Stock Option (right to buy) | Options Exercise | -100% | -25,210 | 0 | 13 May 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Common Stock | Sale | -13.9% | $4,749,995 | $33.25 | -142,857 | 883,719 | 05 May 2026 | Direct |
| Poa Jeffrey Niew | KN | Common Stock | Options Exercise | 16.2% | 142,857 | 1,026,576 | 05 May 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Non-Qualified Stock Option (right to buy) | Options Exercise | -100% | -142,857 | 0 | 05 May 2026 | Direct | ||
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Sale | -7.08% | $111,987 | $30.91 | -3,623 | 47,569 | 30 Apr 2026 | Direct |
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Sale | -4.04% | $64,504 | $29.96 | -2,153 | 51,192 | 29 Apr 2026 | Direct |
| Poa Ye Jane Li | KN | Common Stock | Award | 10.4% | 6,265 | 66,717 | 28 Apr 2026 | Direct | ||
| Poa Michael Wishart | KN | Common Stock | Award | 8.89% | 6,265 | 76,720 | 28 Apr 2026 | Direct | ||
| Poa Cheryl Shavers | KN | Common Stock | Award | 17.4% | 6,265 | 42,341 | 28 Apr 2026 | Direct | ||
| Poa Daniel Crowley | KN | Common Stock | Award | 11.9% | 6,265 | 59,083 | 28 Apr 2026 | Direct | ||
| Poa Jason Cardew | KN | Common Stock | Award | 20.8% | 6,265 | 36,414 | 28 Apr 2026 | Direct | ||
| Poa Keith Barnes | KN | Common Stock | Award | 11% | 6,265 | 63,299 | 28 Apr 2026 | Direct | ||
| Poa Laura Angelini | KN | Common Stock | Award | 26% | 6,265 | 30,311 | 28 Apr 2026 | Direct | ||
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Sale | -3.55% | $59,370 | $30.26 | -1,962 | 53,345 | 28 Apr 2026 | Direct |
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Sale | -3.93% | $69,398 | $30.68 | -2,262 | 55,307 | 27 Apr 2026 | Direct |
| Perna Robert J | KN | Common Stock | Sale | -100% | $257,081 | $27.88 | -9,221 | 0 | 26 Feb 2026 | by Trust |
| Perna Robert J | KN | Common Stock | Sale | -8.46% | $208,558 | $28.10 | -7,422 | 80,272 | 24 Feb 2026 | Direct |
| Perna Robert J | KN | Common Stock | Tax liability | -3.4% | -3,086 | 87,694 | 20 Feb 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Common Stock | Tax liability | -1.94% | -17,456 | 883,719 | 20 Feb 2026 | Direct | ||
| Poa Daniel Giesecke | KN | Common Stock | Tax liability | -1.98% | -3,968 | 196,056 | 20 Feb 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Common Stock | Tax liability | -2.38% | -3,086 | 126,512 | 20 Feb 2026 | Direct | ||
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Tax liability | -3.92% | -2,347 | 57,569 | 20 Feb 2026 | Direct | ||
| Poa John Anderson | KN | Common Stock | Tax liability | -2.38% | -5,731 | 234,596 | 20 Feb 2026 | Direct | ||
| Poa Cheryl Shavers | KN | Common Stock | Sale | -9.3% | $101,380 | $27.40 | -3,700 | 36,076 | 20 Feb 2026 | Direct |
| Keith Barnes | KN | Common Stock | Sale | -100% | $1,114,864 | $27.16 | -41,048 | 0 | 19 Feb 2026 | by Trust |
| Perna Robert J | KN | Common Stock | Tax liability | -3.01% | -2,818 | 90,780 | 18 Feb 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Common Stock | Tax liability | -1.74% | -15,943 | 901,175 | 18 Feb 2026 | Direct | ||
| Poa Daniel Giesecke | KN | Common Stock | Tax liability | -1.78% | -3,624 | 200,024 | 18 Feb 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Common Stock | Tax liability | -2.13% | -2,818 | 129,598 | 18 Feb 2026 | Direct | ||
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Tax liability | -3.45% | -2,143 | 59,916 | 18 Feb 2026 | Direct | ||
| Poa John Anderson | KN | Common Stock | Tax liability | -2.13% | -5,234 | 240,327 | 18 Feb 2026 | Direct | ||
| Perna Robert J | KN | Common Stock | Tax liability | -16.2% | -15,384 | 79,781 | 17 Feb 2026 | Direct | ||
| Perna Robert J | KN | Common Stock | Award | 104.1% | 48,542 | 95,165 | 17 Feb 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Common Stock | Tax liability | -10% | -94,277 | 844,163 | 17 Feb 2026 | Direct | ||
| Poa Jeffrey Niew | KN | Common Stock | Award | 43.8% | 285,769 | 938,440 | 17 Feb 2026 | Direct | ||
| Poa Daniel Giesecke | KN | Common Stock | Tax liability | -8.59% | -17,581 | 187,067 | 17 Feb 2026 | Direct | ||
| Poa Daniel Giesecke | KN | Common Stock | Award | 37.9% | 56,266 | 204,648 | 17 Feb 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Common Stock | Tax liability | -10% | -13,184 | 118,599 | 17 Feb 2026 | Direct | ||
| Poa Raymond D. Cabrera | KN | Common Stock | Award | 49.1% | 43,581 | 132,416 | 17 Feb 2026 | Direct | ||
| Poa Air A. Bastarrica Jr. | KN | Common Stock | Award | 21.7% | 11,054 | 62,059 | 17 Feb 2026 | Direct | ||
| Poa John Anderson | KN | Common Stock | Tax liability | -11.4% | -28,569 | 221,611 | 17 Feb 2026 | Direct | ||
| Poa John Anderson | KN | Common Stock | Award | 54.7% | 88,439 | 250,180 | 17 Feb 2026 | Direct | ||
| Keith Barnes | KN | Common Stock | Gift | 41,048 | 41,048 | 10 Feb 2026 | by Trust | |||
| Keith Barnes | KN | Common Stock | Gift | -41.8% | -41,048 | 57,034 | 10 Feb 2026 | Direct | ||
| Poa John Anderson | KN | Common Stock | Sale | -11.9% | $677,081 | $27.08 | -25,000 | 185,691 | 10 Feb 2026 | Direct |
| Perna Robert J | KN | Common Stock | Sale | -4.98% | $85,767 | $27.09 | -3,166 | 60,440 | 10 Feb 2026 | Direct |
| Poa Daniel Giesecke | KN | Common Stock | Sale | -8.78% | $432,390 | $27.22 | -15,885 | 164,963 | 09 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.