Public ownership evidence

ADTRAN Holdings, Inc. Common Stock (ADTN) Ownership Disclosures

Read ADTN insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

ADTRAN Holdings, Inc. Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-08-11
Trade date
2026-08-10
Reporting owners
Glingener Christoph
Code
A
Shares
27,924
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-342317
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read ADTN fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read ADTN fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
Show the table · 3 rows, 6 columns

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2026-08-112026-08-10Glingener ChristophA27,924Not reported
2026-08-082026-08-06Santo Timothy PP6,579Not reported
2026-07-292026-07-24Glingener ChristophA9,384Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Show the table · 50 rows, 6 columns

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Corient Private Wealth LP2026-06-302026-08-2819,969$277,570None
Advisors Asset Management, Inc.2025-03-312026-08-27649$5,659None
Advisors Asset Management, Inc.2025-09-302026-08-27496$4,652None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2681,000$1,018,980None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2628,100$390,590None
Advisors Asset Management, Inc.2025-06-302026-08-25630$5,651None
First Eagle Investment Management, LLC2026-06-302026-08-251,248,507$17,354,247None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2583,036$1,154,200None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,154,200$83,036,000None
Advisors Asset Management, Inc.2024-09-302026-08-22530$3,143None
Advisors Asset Management, Inc.2024-12-312026-08-22654$5,448None
Assenagon Asset Management S.A.2026-06-302026-08-22917,754$12,756,781None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2026,791$372,395None
Corient Private Wealth LP2026-06-302026-08-1814,394$200,078None
Empowered Funds, LLC2026-06-302026-08-18184,606$2,566,023None
WESTERLY CAPITAL MANAGEMENT, LLC2026-06-302026-08-15500,000$6,950,000None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-1521,180$294,402None
Alpine Global Management, LLC2026-06-302026-08-1518,854$262,071None
CAXTON ASSOCIATES LLP2026-06-302026-08-1567,169$933,649None
SEI INVESTMENTS CO2026-06-302026-08-15402,466$5,594,277None
SEI INVESTMENTS CO2026-06-302026-08-15787$10,930None
JPL Wealth Management, LLC2026-06-302026-08-1519$265None
Basecamp Wealth Advisors LLC2026-06-302026-08-15253$3,517None
Polymer Capital Management (US) LLC2026-06-302026-08-15101,366$1,408,987None
Quarry LP2026-06-302026-08-1541$570None
Integrated Quantitative Investments LLC2026-06-302026-08-1592,997$1,292,658None
NFSG Corp2026-06-302026-08-15100$1,390None
XTX Topco Ltd2026-06-302026-08-15178,573$2,482,165None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15714,068$9,925,545None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15714,068$9,925,545None
ExodusPoint Capital Management, LP2026-06-302026-08-1525,241$350,850None
Qube Research & Technologies Ltd2026-06-302026-08-151,398,913$19,444,891None
Diametric Capital, LP2026-06-302026-08-1571,342$991,653None
OSAIC HOLDINGS, INC.2026-06-302026-08-15345$4,796None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,534$21,323None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1541,818$581,269None
QUADRANT CAPITAL GROUP LLC2026-06-302026-08-1535,710$496,369None
Divisar Capital Management LLC2026-06-302026-08-15851,526$11,836,211None
Squarepoint Ops LLC2026-06-302026-08-15617,388$8,581,693None
Man Group plc2026-06-302026-08-15102,762$1,428,392None
Trexquant Investment LP2026-06-302026-08-15472,733$6,570,989None
MetLife Investment Management, LLC2026-06-302026-08-1545,016$625,722None
Engineers Gate Manager LP2026-06-302026-08-15198,697$2,761,888None
GRATIA CAPITAL, LLC2026-06-302026-08-15250,492$3,481,839None
JANE STREET GROUP, LLC2026-06-302026-08-1534$473None
JANE STREET GROUP, LLC2026-06-302026-08-15143,550$1,995,345None
JANE STREET GROUP, LLC2026-06-302026-08-15138,284$1,922,148None
JANE STREET GROUP, LLC2026-06-302026-08-15182,800$2,540,920Call
BTG Pactual Asset Management US LLC2026-06-302026-08-1516,818$233,770None
PDT Partners, LLC2026-06-302026-08-1553,641$745,610None

90-day public filing window, up to 50 source positions.

Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗Advisors Asset Management, Inc. ↗First Eagle Investment Management, LLC ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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