MentionFox
Home › 5%+ stakes › Manufacturing (industry group 36), latest filing in October 2026
5%+ stakes

Manufacturing (industry group 36), latest filing in October 2026

18 companies with 5%+ holders, every filing linked: Allegro Microsystems, Inc., Ambiq Micro Inc, Analog Devices Inc, Astera Labs Inc, Aviat Networks Inc., Clearfield, Inc. and more. Each section is the company's full record from its filings, newest filings first within each section.

18 companies with 5%+ holders on this page (Manufacturing (industry group 36), latest filing in October 2026), each linked to its filing, starting with Allegro Microsystems, Inc., Ambiq Micro Inc, Analog Devices Inc. Free check on any of them: https://mentionfox.com/check

On this page

Allegro Microsystems, Inc.

At 5% or more4
Filings11
Latest filing2026-11-05

Allegro Microsystems, Inc. has 11 Schedule 13D or 13G filings on record since 2025-08-13. 4 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Invesco Ltd.7.3%13,678,393SCHEDULE 13G, 2026-08-132026-06-30
Capital Research Global Investors7.1%13,111,292SCHEDULE 13G/A, 2026-02-122025-12-31
BlackRock, Inc.6.9%12,814,040SCHEDULE 13G/A, 2026-07-272026-06-30
Fmr LLC5.3%9,913,112SCHEDULE 13G/A, 2026-10-072026-09-30
Jpmorgan Chase & Co.4.3%8,022,860SCHEDULE 13G/A, 2026-11-052026-10-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Invesco Ltd.13,354,417013,678,3930SCHEDULE 13G, 2026-08-13
BlackRock, Inc.12,469,786012,814,0400SCHEDULE 13G/A, 2026-07-27
Fmr LLC9,879,97109,913,1120SCHEDULE 13G/A, 2026-10-07
Abigail P. Johnson009,913,1120SCHEDULE 13G/A, 2026-10-07
Jpmorgan Chase & Co.7,496,81918,022,623237SCHEDULE 13G/A, 2026-11-05

The latest filing identifies Allegro Microsystems, Inc. by CUSIP 01749D105 and gives its principal executive office as 955 Perimeter Road, Manchester, NH 03103 (SCHEDULE 13G/A, 2026-11-05).

FiledHolderPercentFiling
2025-08-13Capital Research Global Investors8.6%SCHEDULE 13G/A
2026-02-05Fmr LLC12.8%SCHEDULE 13G/A
2026-02-12Capital Research Global Investors7.1%SCHEDULE 13G/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-05-06Fmr LLC14.8%SCHEDULE 13G/A
2026-07-16Jpmorgan Chase & Co6.8%SCHEDULE 13G
2026-07-27BlackRock, Inc.6.9%SCHEDULE 13G/A
2026-08-06Fmr LLC13.7%SCHEDULE 13G/A
2026-08-13Invesco Ltd.7.3%SCHEDULE 13G
2026-10-07Fmr LLC5.3%SCHEDULE 13G/A
2026-11-05Jpmorgan Chase & Co.4.3%SCHEDULE 13G/A
DateRecordFigureOur pageSource
May 13, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Ambiq Micro Inc

At 5% or more2
Filings5
Latest filing2026-10-27

Ambiq Micro Inc has 5 Schedule 13D or 13G filings on record since 2025-11-03. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
KPCB XVI Associates, LLC8.2%1,488,949SCHEDULE 13G, 2025-11-032025-09-30
BlackRock, Inc.6.7%1,628,207SCHEDULE 13G/A, 2026-10-272026-09-30
T. Rowe Price Investment Management, Inc.4.3%1,006,359SCHEDULE 13G/A, 2026-08-142026-06-30
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.1,589,36601,628,2070SCHEDULE 13G/A, 2026-10-27
T. Rowe Price Investment Management, Inc.1,004,29101,006,3590SCHEDULE 13G/A, 2026-08-14

The latest filing identifies Ambiq Micro Inc by CUSIP 023193105 and gives its principal executive office as 6500 River Place Blvd., Building 7, Austin, TX 78730 (SCHEDULE 13G/A, 2026-10-27).

FiledHolderPercentFiling
2025-11-03KPCB XVI Associates, LLC8.2%SCHEDULE 13G
2026-05-15T. Rowe Price Investment Management, Inc.6%SCHEDULE 13G
2026-07-27BlackRock, Inc.5.3%SCHEDULE 13G
2026-08-14T. Rowe Price Investment Management, Inc.4.3%SCHEDULE 13G/A
2026-10-27BlackRock, Inc.6.7%SCHEDULE 13G/A
DateRecordFigureOur pageSource
June 25, 2026IPO filing, Form 424B4$78 a shareIPO filingsSource
June 22, 2026IPO filing, Form S-1—IPO filingsSource
January 26, 2026IPO filing, Form 424B4—IPO filingsSource
January 21, 2026IPO filing, Form S-1—IPO filingsSource
July 31, 2025IPO filing, Form 424B4$24 a shareIPO filingsSource
July 21, 2025IPO filing, Form S-1/A$22 to $25 a shareIPO filingsSource
July 3, 2025IPO filing, Form S-1—IPO filingsSource

Analog Devices Inc

At 5% or more2
Filings5
Latest filing2026-10-27

Analog Devices Inc has 5 Schedule 13D or 13G filings on record since 2025-07-30. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.8.9%43,343,755SCHEDULE 13G/A, 2026-10-272026-09-30
Vanguard Capital Management7.47%36,512,048SCHEDULE 13G, 2026-04-292026-03-31
Jpmorgan Chase & Co.4.4%21,856,594SCHEDULE 13G/A, 2025-08-052025-07-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.39,422,465043,343,7550SCHEDULE 13G/A, 2026-10-27
Vanguard Capital Management4,772,977036,512,0480SCHEDULE 13G, 2026-04-29
Jpmorgan Chase & Co.19,228,968195,95921,703,933134,392SCHEDULE 13G/A, 2025-08-05
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-26

The latest filing identifies Analog Devices Inc by CUSIP 032654105 and gives its principal executive office as ONE ANALOG WAY, WILMINGTON, MA 01887 (SCHEDULE 13G/A, 2026-10-27).

FiledHolderPercentFiling
2025-07-30Jpmorgan Chase & Co.5%SCHEDULE 13G
2025-08-05Jpmorgan Chase & Co.4.4%SCHEDULE 13G/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Capital Management7.47%SCHEDULE 13G
2026-10-27BlackRock, Inc.8.9%SCHEDULE 13G/A

Astera Labs Inc

At 5% or more3
Filings9
Latest filing2026-10-07

Astera Labs Inc has 9 Schedule 13D or 13G filings on record since 2025-07-29. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Fmr LLC9.1%15,774,196SCHEDULE 13G/A, 2026-10-072026-09-30
BlackRock, Inc.7.4%12,667,232SCHEDULE 13G/A, 2026-07-272026-06-30
Mohan Jitendra5.4%9,169,692SCHEDULE 13G/A, 2025-11-142025-09-30
Gajendra Sanjay4.5%7,565,234SCHEDULE 13G/A, 2025-11-142025-09-30
AllianceBernstein L.P.3.9%6,391,580SCHEDULE 13G/A, 2025-08-132025-06-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Fmr LLC15,199,893015,774,1960SCHEDULE 13G/A, 2026-10-07
Abigail P. Johnson0015,774,1960SCHEDULE 13G/A, 2026-10-07
BlackRock, Inc.11,998,990012,667,2320SCHEDULE 13G/A, 2026-07-27
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-26

The latest filing identifies Astera Labs Inc by CUSIP 04626A103 and gives its principal executive office as 2345 NORTH FIRST STREET, SAN JOSE, CA 95131 (SCHEDULE 13G/A, 2026-10-07).

FiledHolderPercentFiling
2025-07-29The Vanguard Group7.3%SCHEDULE 13G/A
2025-08-13AllianceBernstein L.P.3.9%SCHEDULE 13G/A
2025-10-17BlackRock, Inc.5.02%SCHEDULE 13G
2025-11-14Mohan Jitendra5.4%SCHEDULE 13G/A
2025-11-14Gajendra Sanjay4.5%SCHEDULE 13G/A
2026-01-21BlackRock, Inc.6.2%SCHEDULE 13G/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-07-27BlackRock, Inc.7.4%SCHEDULE 13G/A
2026-10-07Fmr LLC9.1%SCHEDULE 13G/A
DateRecordFigureOur pageSource
November 4, 2026Leadership change: Michael Hurlston departs, Director—Leadership changesSource

Aviat Networks Inc.

At 5% or more0
Filings4
Latest filing2026-10-13

Aviat Networks Inc. has 4 Schedule 13D or 13G filings on record since 2025-07-15. No holder's latest filing reports 5% or more. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Royce & Associates LP4.56%586,822SCHEDULE 13G/A, 2026-10-132026-09-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Royce & Associates LP586,8220586,8220SCHEDULE 13G/A, 2026-10-13
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-26

The latest filing identifies Aviat Networks Inc. by CUSIP 05366Y201 and gives its principal executive office as Office of the Secretary, 5200 Great America Parkway, Santa Clara, CA 95054 (SCHEDULE 13G/A, 2026-10-13).

FiledHolderPercentFiling
2025-07-15Royce & Associates LP4.93%SCHEDULE 13G/A
2026-01-20Royce & Associates LP5.05%SCHEDULE 13G
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-10-13Royce & Associates LP4.56%SCHEDULE 13G/A
DateRecordFigureOur pageSource
October 6, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Clearfield, Inc.

At 5% or more3
Filings5
Latest filing2026-10-19

Clearfield, Inc. has 5 Schedule 13D or 13G filings on record since 2026-02-13. 3 holders' latest filing reports 5% or more of common stock, $0.01 par value. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Ronald G. Roth10.5%1,456,024SCHEDULE 13G/A, 2026-02-132025-12-31
Orin Hirschman9%1,217,196SCHEDULE 13G/A, 2026-10-192026-09-30
ACK Asset Management LLC5.1%710,200SCHEDULE 13G, 2026-04-152026-02-20
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Orin Hirschman1,217,19601,217,1960SCHEDULE 13G/A, 2026-10-19
AIGH Capital Management LLC1,217,19601,217,1960SCHEDULE 13G/A, 2026-10-19
ACK Asset Management LLC0710,2000710,200SCHEDULE 13G, 2026-04-15
Richard Meisenberg0710,2000710,200SCHEDULE 13G, 2026-04-15
John Reilly071,0000710,200SCHEDULE 13G, 2026-04-15
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-26

The latest filing identifies Clearfield, Inc. by CUSIP 18482P103 and gives its principal executive office as 7050 Winnetka Avenue North, Suite 100, Brooklyn Park, MN 55428 (SCHEDULE 13G/A, 2026-10-19).

FiledHolderPercentFiling
2026-02-13Ronald G. Roth10.5%SCHEDULE 13G/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-04-15ACK Asset Management LLC5.1%SCHEDULE 13G
2026-07-27Orin Hirschman7.4%SCHEDULE 13G
2026-10-19Orin Hirschman9%SCHEDULE 13G/A
DateRecordFigureOur pageSource
October 20, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Impinj Inc

At 5% or more3
Filings8
Latest filing2026-10-27

Impinj Inc has 8 Schedule 13D or 13G filings on record since 2025-09-12. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.14.7%4,495,591SCHEDULE 13G/A, 2026-10-272026-09-30
Vanguard Portfolio Management7.15%2,164,577SCHEDULE 13G, 2026-04-292026-03-31
State Street Corporation5.6%1,700,585SCHEDULE 13G, 2026-08-072026-06-30
Capital International Investors4.5%1,352,380SCHEDULE 13G/A, 2026-05-142026-03-31
Sylebra Capital LLC3.76%1,132,152SCHEDULE 13D/A, 2025-12-172025-12-15
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.4,435,48704,495,5910SCHEDULE 13G/A, 2026-10-27
Vanguard Portfolio Management24,41902,164,5770SCHEDULE 13G, 2026-04-29
State Street Corporation01,620,35301,700,585SCHEDULE 13G, 2026-08-07
Capital International Investors1,352,38001,352,3800SCHEDULE 13G/A, 2026-05-14

The latest filing identifies Impinj Inc by CUSIP 453204109 and gives its principal executive office as 400 FAIRVIEW AVENUE NORTH SUITE 1200, SEATTLE, WA 98109 (SCHEDULE 13G/A, 2026-10-27).

Sylebra Capital LLC

N/A as this was a disposal of securities. The disposal of shares was conducted in the ordinary course of portfolio management.Item 4 of the SCHEDULE 13D/A filed 2025-12-17
FiledHolderPercentFiling
2025-09-12Sylebra Capital LLC6.29%SCHEDULE 13D/A
2025-12-05Sylebra Capital LLC5%SCHEDULE 13D/A
2025-12-17Sylebra Capital LLC3.76%SCHEDULE 13D/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Portfolio Management7.15%SCHEDULE 13G
2026-05-14Capital International Investors4.5%SCHEDULE 13G/A
2026-08-07State Street Corporation5.6%SCHEDULE 13G
2026-10-27BlackRock, Inc.14.7%SCHEDULE 13G/A

Kulicke And Soffa Industries, Inc.

At 5% or more1
Filings6
Latest filing2026-10-13

Kulicke And Soffa Industries, Inc. has 6 Schedule 13D or 13G filings on record since 2025-08-13. 1 holder's latest filing reports 5% or more of common stock, without par value. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Vanguard Portfolio Management5.17%2,707,789SCHEDULE 13G, 2026-07-312026-06-30
Capital International Investors4.5%2,390,272SCHEDULE 13G/A, 2025-08-132025-06-30
Victory Capital Management, Inc.4.29%2,235,230SCHEDULE 13G/A, 2025-10-312025-09-30
Jpmorgan Chase & Co.3.4%1,820,302SCHEDULE 13G/A, 2026-10-132026-09-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-262026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Vanguard Portfolio Management52,13902,707,7890SCHEDULE 13G, 2026-07-31
Jpmorgan Chase & Co.1,689,5281,5561,814,1282,510SCHEDULE 13G/A, 2026-10-13
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-26

The latest filing identifies Kulicke And Soffa Industries, Inc. by CUSIP 501242101 and gives its principal executive office as 1005 Virginia Dr., Fort Washington, PA 19034 (SCHEDULE 13G/A, 2026-10-13).

FiledHolderPercentFiling
2025-08-13Capital International Investors4.5%SCHEDULE 13G/A
2025-10-31Victory Capital Management, Inc.4.29%SCHEDULE 13G/A
2026-03-26The Vanguard Group0%SCHEDULE 13G/A
2026-07-16Jpmorgan Chase & Co5%SCHEDULE 13G
2026-07-31Vanguard Portfolio Management5.17%SCHEDULE 13G
2026-10-13Jpmorgan Chase & Co.3.4%SCHEDULE 13G/A
DateRecordFigureOur pageSource
October 14, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
August 17, 2026Leadership change: Raj Talluri appointed, President and Chief Executive Officer—Leadership changesSource

LG Display Co., Ltd.

At 5% or more0
Filings2
Latest filing2026-10-27

LG Display Co., Ltd. has 2 Schedule 13D or 13G filings on record since 2026-07-30. No holder's latest filing reports 5% or more. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.1.9%9,400,810SCHEDULE 13G/A, 2026-10-272026-09-30
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.9,026,42009,400,8100SCHEDULE 13G/A, 2026-10-27

The latest filing identifies LG Display Co., Ltd. by CUSIP Y5255T100 and gives its principal executive office as LG TWIN TOWERS, 128 YEOUI-DAERO, YEONGDEUNGPO-GU, SEOUL (SCHEDULE 13G/A, 2026-10-27).

FiledHolderPercentFiling
2026-07-30BlackRock, Inc.5.8%SCHEDULE 13G
2026-10-27BlackRock, Inc.1.9%SCHEDULE 13G/A

Methode Electronics Inc

At 5% or more3
Filings6
Latest filing2026-10-19

Methode Electronics Inc has 6 Schedule 13D or 13G filings on record since 2025-09-08. 3 holders' latest filing reports 5% or more of common stock, $0.50 par value. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
T. Rowe Price Investment Management, Inc.5.9%2,088,968SCHEDULE 13G, 2026-05-152026-03-31
Ameriprise Financial, Inc.5.6%1,979,281SCHEDULE 13G, 2026-05-152026-03-31
Orin Hirschman5.6%1,982,420SCHEDULE 13G, 2026-10-192026-09-30
Fmr LLC4.4%1,561,443SCHEDULE 13G/A, 2025-11-052025-09-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
T. Rowe Price Investment Management, Inc.2,088,96802,088,9680SCHEDULE 13G, 2026-05-15
Ameriprise Financial, Inc.01,979,28101,979,281SCHEDULE 13G, 2026-05-15
Columbia Management Investment Advisers, LLC01,979,28101,979,281SCHEDULE 13G, 2026-05-15
Orin Hirschman1,982,42001,982,4200SCHEDULE 13G, 2026-10-19
AIGH Capital Management LLC1,982,42001,982,4200SCHEDULE 13G, 2026-10-19
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27

The latest filing identifies Methode Electronics Inc by CUSIP 591520200 and gives its principal executive office as 25650 West Eleven Mile Road, Southfield, MI 48034 (SCHEDULE 13G, 2026-10-19).

FiledHolderPercentFiling
2025-09-08Fmr LLC8.7%SCHEDULE 13G/A
2025-11-05Fmr LLC4.4%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-05-15Ameriprise Financial, Inc.5.6%SCHEDULE 13G
2026-05-15T. Rowe Price Investment Management, Inc.5.9%SCHEDULE 13G
2026-10-19Orin Hirschman5.6%SCHEDULE 13G
DateRecordFigureOur pageSource
October 23, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
September 17, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Microchip Technology Incorporated

At 5% or more3
Filings8
Latest filing2026-10-27

Microchip Technology Incorporated has 8 Schedule 13D or 13G filings on record since 2025-10-31. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.11.6%63,269,934SCHEDULE 13G/A, 2026-10-272026-09-30
Vanguard Capital Management7.5%40,620,884SCHEDULE 13G, 2026-04-302026-03-31
Vanguard Portfolio Management6%32,469,341SCHEDULE 13G, 2026-04-292026-03-31
Invesco Ltd.4.9%26,543,373SCHEDULE 13G/A, 2026-07-152026-03-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.59,729,162063,269,9340SCHEDULE 13G/A, 2026-10-27
Vanguard Capital Management5,495,811040,620,8840SCHEDULE 13G, 2026-04-30
Invesco Ltd.26,291,113026,543,3730SCHEDULE 13G/A, 2026-07-15

The latest filing identifies Microchip Technology Incorporated by CUSIP 595017104 and gives its principal executive office as 2355 WEST CHANDLER BLVD, CHANDLER, AZ 85224-6199 (SCHEDULE 13G/A, 2026-10-27).

FiledHolderPercentFiling
2025-10-31The Vanguard Group13.35%SCHEDULE 13G/A
2026-02-06BlackRock, Inc.10%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Portfolio Management6%SCHEDULE 13G
2026-04-30Vanguard Capital Management7.5%SCHEDULE 13G
2026-07-15Invesco Ltd.5.2%SCHEDULE 13G
2026-07-15Invesco Ltd.4.9%SCHEDULE 13G/A
2026-10-27BlackRock, Inc.11.6%SCHEDULE 13G/A
DateRecordFigureOur pageSource
July 24, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource
June 1, 2026Leadership change: Mitch Little appointed, Director, and 1 more—Leadership changesSource

Napco Security Technologies, Inc

At 5% or more3
Filings7
Latest filing2026-10-13

Napco Security Technologies, Inc has 7 Schedule 13D or 13G filings on record since 2025-10-17. 3 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.15%5,350,443SCHEDULE 13G/A, 2026-04-072026-03-31
Copeland Capital Management, LLC5.8%2,081,285SCHEDULE 13G, 2026-10-132026-09-30
Vanguard Capital Management5.02%1,794,370SCHEDULE 13G, 2026-07-312026-06-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Copeland Capital Management, LLC1,359,942310,86501,670,807SCHEDULE 13G, 2026-10-13
Vanguard Capital Management267,55201,794,3700SCHEDULE 13G, 2026-07-31

The latest filing identifies Napco Security Technologies, Inc by CUSIP 630402105 and gives its principal executive office as 333 Bayview Avenue, Amityville, NY 11701 (SCHEDULE 13G, 2026-10-13).

FiledHolderPercentFiling
2025-10-17BlackRock, Inc.7.9%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-07BlackRock, Inc.15%SCHEDULE 13G/A
2026-05-07Copeland Capital Management, LLC5.6%SCHEDULE 13G
2026-07-31Vanguard Capital Management5.02%SCHEDULE 13G
2026-08-04Copeland Capital Management, LLC5.65%SCHEDULE 13G
2026-10-13Copeland Capital Management, LLC5.8%SCHEDULE 13G
DateRecordFigureOur pageSource
July 8, 2026Leadership change: Richard Soloway appointed, Chief Operating Officer—Leadership changesSource

On Semiconductor Corp

At 5% or more3
Filings8
Latest filing2026-10-07

On Semiconductor Corp has 8 Schedule 13D or 13G filings on record since 2025-08-06. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Fmr LLC8.2%31,915,450SCHEDULE 13G/A, 2026-10-072026-09-30
Vanguard Capital Management7.5%29,575,202SCHEDULE 13G, 2026-04-302026-03-31
Vanguard Portfolio Management5.1%20,112,107SCHEDULE 13G, 2026-04-292026-03-31
State Street Corporation4.6%19,393,304SCHEDULE 13G, 2025-08-112025-06-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Fmr LLC29,764,143031,915,4500SCHEDULE 13G/A, 2026-10-07
Abigail P. Johnson0031,915,4500SCHEDULE 13G/A, 2026-10-07
Vanguard Capital Management3,942,003029,575,2020SCHEDULE 13G, 2026-04-30
Vanguard Portfolio Management49,547020,112,1070SCHEDULE 13G, 2026-04-29
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27

The latest filing identifies On Semiconductor Corp by CUSIP 682189105 and gives its principal executive office as 5701 NORTH PIMA ROAD, SCOTTSDALE, AZ 85250 (SCHEDULE 13G/A, 2026-10-07).

FiledHolderPercentFiling
2025-08-06Fmr LLC13.5%SCHEDULE 13G/A
2025-08-11State Street Corporation4.6%SCHEDULE 13G
2025-11-05Fmr LLC15%SCHEDULE 13G/A
2026-01-30The Vanguard Group12.69%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Portfolio Management5.1%SCHEDULE 13G
2026-04-30Vanguard Capital Management7.5%SCHEDULE 13G
2026-10-07Fmr LLC8.2%SCHEDULE 13G/A

Powell Industries, Inc.

At 5% or more2
Filings6
Latest filing2026-10-27

Powell Industries, Inc. has 6 Schedule 13D or 13G filings on record since 2025-10-31. 2 holders' latest filing reports 5% or more of common. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.9.7%3,517,738SCHEDULE 13G/A, 2026-07-292026-06-30
First Trust Portfolios L.P.5.32%1,937,288SCHEDULE 13G, 2026-10-272026-09-30
Kovitz Investment Group Partners, LLC0%2,420SCHEDULE 13G/A, 2025-11-062025-10-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.3,467,00103,517,7380SCHEDULE 13G/A, 2026-07-29
First Trust Portfolios L.P.000156,853SCHEDULE 13G, 2026-10-27
First Trust Advisors L.P.01,780,43501,937,288SCHEDULE 13G, 2026-10-27
The Charger Corporation01,780,43501,937,288SCHEDULE 13G, 2026-10-27
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27

The latest filing identifies Powell Industries, Inc. by CUSIP 739128106 and gives its principal executive office as 8550 Mosley Drive, Houston, TX 77075 (SCHEDULE 13G, 2026-10-27).

FiledHolderPercentFiling
2025-10-31First Trust Portfolios L.P.5.93%SCHEDULE 13G
2025-11-06Kovitz Investment Group Partners, LLC0%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-07-29BlackRock, Inc.9.7%SCHEDULE 13G/A
2026-07-30First Trust Portfolios L.P.4.55%SCHEDULE 13G/A
2026-10-27First Trust Portfolios L.P.5.32%SCHEDULE 13G
DateRecordFigureOur pageSource
July 6, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Rambus Inc

At 5% or more5
Filings12
Latest filing2026-11-05

Rambus Inc has 12 Schedule 13D or 13G filings on record since 2025-08-14. 5 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
BlackRock, Inc.10.4%11,268,097SCHEDULE 13G/A, 2026-10-272026-09-30
Fmr LLC6.6%7,113,727SCHEDULE 13G/A, 2026-11-052026-09-30
Vanguard Portfolio Management6.23%6,742,464SCHEDULE 13G, 2026-04-292026-03-31
Invesco Ltd.6%6,499,048SCHEDULE 13G, 2026-05-062026-03-31
Vanguard Capital Management5.22%5,651,568SCHEDULE 13G, 2026-04-302026-03-31
T. Rowe Price Associates, Inc.3.1%3,376,064SCHEDULE 13G/A, 2026-05-152026-03-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.10,943,092011,268,0970SCHEDULE 13G/A, 2026-10-27
Fmr LLC6,526,21507,113,7270SCHEDULE 13G/A, 2026-11-05
Abigail P. Johnson007,113,7270SCHEDULE 13G/A, 2026-11-05
T. Rowe Price Associates, Inc.3,355,65003,376,0640SCHEDULE 13G/A, 2026-05-15

The latest filing identifies Rambus Inc by CUSIP 750917106 and gives its principal executive office as 4453 NORTH FIRST STREET, SUITE 100, SAN JOSE, CA 95134 (SCHEDULE 13G/A, 2026-11-05).

FiledHolderPercentFiling
2025-08-14T. Rowe Price Associates, Inc.4.4%SCHEDULE 13G/A
2026-01-21BlackRock, Inc.14%SCHEDULE 13G/A
2026-02-17T. Rowe Price Associates, Inc.5%SCHEDULE 13G
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Portfolio Management6.23%SCHEDULE 13G
2026-04-30Vanguard Capital Management5.22%SCHEDULE 13G
2026-05-06Invesco Ltd.6%SCHEDULE 13G
2026-05-15T. Rowe Price Associates, Inc.3.1%SCHEDULE 13G/A
2026-06-05Fmr LLC10.4%SCHEDULE 13G
2026-07-29BlackRock, Inc.12.2%SCHEDULE 13G/A
2026-10-27BlackRock, Inc.10.4%SCHEDULE 13G/A
2026-11-05Fmr LLC6.6%SCHEDULE 13G/A
DateRecordFigureOur pageSource
September 4, 2026Leadership change: John Allen departs, Principal Accounting Officer, and 1 more—Leadership changesSource
April 29, 2026Leadership change: Sumeet Gagneja appointed, Chief Financial Officer—Leadership changesSource

Varex Imaging Corp

At 5% or more1
Filings7
Latest filing2026-10-07

Varex Imaging Corp has 7 Schedule 13D or 13G filings on record since 2025-07-03. 1 holder's latest filing reports 5% or more of common stock sh sh. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Vanguard Capital Management5.1%2,147,586SCHEDULE 13G, 2026-07-312026-06-30
Dimensional Fund Advisors LP4.8%1,992,611SCHEDULE 13G/A, 2025-10-092025-09-30
Pzena Investment Management LLC4.2%1,785,166SCHEDULE 13G/A, 2026-10-052026-09-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Allspring Global Investments Holdings, LLC0%0SCHEDULE 13G/A, 2026-10-072026-08-12
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Vanguard Capital Management280,42402,147,5860SCHEDULE 13G, 2026-07-31
Pzena Investment Management LLC1,020,77001,785,1660SCHEDULE 13G/A, 2026-10-05
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27
Allspring Global Investments Holdings, LLC0000SCHEDULE 13G/A, 2026-10-07

The latest filing identifies Varex Imaging Corp by CUSIP 92214X106 and gives its principal executive office as 1678 S. PIONEER ROAD, ALT LAKE CITY, UT 84104 (SCHEDULE 13G/A, 2026-10-07).

FiledHolderPercentFiling
2025-07-03Pzena Investment Management LLC10.2%SCHEDULE 13G/A
2025-10-09Dimensional Fund Advisors LP4.8%SCHEDULE 13G/A
2025-10-31The Vanguard Group7.2%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-07-31Vanguard Capital Management5.1%SCHEDULE 13G
2026-10-05Pzena Investment Management LLC4.2%SCHEDULE 13G/A
2026-10-07Allspring Global Investments Holdings, LLC0%SCHEDULE 13G/A

Vertiv Holdings Co

At 5% or more2
Filings5
Latest filing2026-10-27

Vertiv Holdings Co has 5 Schedule 13D or 13G filings on record since 2025-08-07. 2 holders' latest filing reports 5% or more of class a stock. Each figure below is the holder's own, as filed, with the filing linked.

HolderPercentSharesLatestEvent date
Vanguard Capital Management7.48%28,637,577SCHEDULE 13G, 2026-04-302026-03-31
BlackRock, Inc.6.8%26,190,977SCHEDULE 13G/A, 2026-10-272026-09-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Vanguard Capital Management3,779,258028,637,5770SCHEDULE 13G, 2026-04-30
BlackRock, Inc.23,735,232026,190,9770SCHEDULE 13G/A, 2026-10-27
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27

The latest filing identifies Vertiv Holdings Co by CUSIP 92537N108 and gives its principal executive office as 505 N. CLEVELAND AVE, WESTERVILLE, OH 43082 (SCHEDULE 13G/A, 2026-10-27).

FiledHolderPercentFiling
2025-08-07The Vanguard Group10%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-24BlackRock, Inc.7.8%SCHEDULE 13G/A
2026-04-30Vanguard Capital Management7.48%SCHEDULE 13G
2026-10-27BlackRock, Inc.6.8%SCHEDULE 13G/A
DateRecordFigureOur pageSource
October 27, 2026Acquired Utility Innovation Holdings, Inc.$1.45BAcquisitionSource

Viavi Solutions Inc.

At 5% or more3
Filings13
Latest filing2026-10-05

Viavi Solutions Inc. has 13 Schedule 13D or 13G filings on record since 2025-07-29. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Layoffs on record: 1 filing or notice, latest 2026-01-28 (layoff filings and notices).

HolderPercentSharesLatestEvent date
BlackRock, Inc.10.1%24,923,503SCHEDULE 13G/A, 2026-10-052026-09-30
Vanguard Portfolio Management5.58%13,682,022SCHEDULE 13G/A, 2026-07-312026-06-30
Vanguard Capital Management5.23%12,119,145SCHEDULE 13G, 2026-04-302026-03-31
Wellington Management Group LLP4.9%10,999,595SCHEDULE 13G/A, 2026-02-102025-12-31
T. Rowe Price Investment Management, Inc.3.8%8,497,432SCHEDULE 13G/A, 2026-02-172025-12-31
Capital World Investors3.8%9,193,685SCHEDULE 13G/A, 2026-08-122026-06-30
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13
Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
BlackRock, Inc.24,272,595024,923,5030SCHEDULE 13G/A, 2026-10-05
Vanguard Portfolio Management66,338013,682,0220SCHEDULE 13G/A, 2026-07-31
Capital World Investors9,193,68509,193,6850SCHEDULE 13G/A, 2026-08-12

The latest filing identifies Viavi Solutions Inc. by CUSIP 925550105 and gives its principal executive office as 1445 SOUTH SPECTRUM BLVD., SUITE 102, CHANDLER, AZ 85286 (SCHEDULE 13G/A, 2026-10-05).

FiledHolderPercentFiling
2025-07-29The Vanguard Group14.07%SCHEDULE 13G/A
2025-11-12Wellington Management Group LLP6.5%SCHEDULE 13G/A
2025-11-14T. Rowe Price Investment Management, Inc.5%SCHEDULE 13G
2026-02-10Wellington Management Group LLP4.9%SCHEDULE 13G/A
2026-02-17T. Rowe Price Investment Management, Inc.3.8%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-29Vanguard Portfolio Management7.75%SCHEDULE 13G
2026-04-30Vanguard Capital Management5.23%SCHEDULE 13G
2026-05-14Capital World Investors5%SCHEDULE 13G/A
2026-07-08BlackRock, Inc.9.5%SCHEDULE 13G/A
2026-07-31Vanguard Portfolio Management5.58%SCHEDULE 13G/A
2026-08-12Capital World Investors3.8%SCHEDULE 13G/A
2026-10-05BlackRock, Inc.10.1%SCHEDULE 13G/A
DateRecordFigureOur pageSource
May 18, 2026Leadership change filing (Form 8-K, Item 5.02)—Leadership changesSource

Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

All 5%+ stakes

RSS