Public ownership evidence

A10 NETWORKS INC (ATEN) Ownership Disclosures

Read ATEN 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

A10 NETWORKS INC: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-07
Trade date
2026-10-05
Reporting owners
Henry Mary C
Code
A
Shares
7,981
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 0001784794-26-000007
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 ATEN fundamentals

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

Read ATEN 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
2026-10-072026-10-05Henry Mary CA7,981Not reported
2026-08-262026-08-25Wolf Dana ElizabethS2,652Not reported
2026-08-132026-08-11Weber Robert ScottS14,086Not 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.

OPTIMIZE FINANCIAL INC.2026-06-302026-08-2823,700$885,432None
Advisors Asset Management, Inc.2022-12-312026-08-282,189$36,403None
Advisors Asset Management, Inc.2024-03-312026-08-274,636$63,467None
Advisors Asset Management, Inc.2025-03-312026-08-271,848$30,196None
Advisors Asset Management, Inc.2022-09-302026-08-271,024$14,000None
Advisors Asset Management, Inc.2023-06-302026-08-275,316$77,560None
Advisors Asset Management, Inc.2023-09-302026-08-275,566$83,657None
Advisors Asset Management, Inc.2023-03-312026-08-273,560$55,144None
Advisors Asset Management, Inc.2023-12-312026-08-274,290$56,499None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2576,768$2,868,052None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,868,052$76,768,000None
Advisors Asset Management, Inc.2024-09-302026-08-222,181$31,494None
Advisors Asset Management, Inc.2024-06-302026-08-223,691$51,120None
Advisors Asset Management, Inc.2024-12-312026-08-222,190$40,296None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2010,824$404,374None
Fulcrum Asset Management LLP2026-06-302026-08-19166$6,031None
Empowered Funds, LLC2026-06-302026-08-188,944$334,148None
Transamerica Financial Advisors, LLC2026-06-302026-08-18707$26,433None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18331$12,366None
Investors Portfolio Services LLC2026-06-302026-08-1534$1,270None
Graham Capital Management, L.P.2026-06-302026-08-156,960$260,026None
SEI INVESTMENTS CO2026-06-302026-08-15151,594$5,663,552None
SEI INVESTMENTS CO2026-06-302026-08-1584$3,140None
Massar Capital Management, LP2026-06-302026-08-1516,336$610,313None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15843$31,491None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15100$3,736None
4D Advisors, LLC2026-06-302026-08-15135,000$5,043,600None
XTX Topco Ltd2026-06-302026-08-1541,004$1,531,909None
Aquatic Capital Management LLC2026-06-302026-08-155,591$208,880None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15761,676$28,456,215None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15761,676$28,456,215None
ExodusPoint Capital Management, LP2026-06-302026-08-1552,729$1,969,955None
Defiance ETFs, LLC2026-06-302026-08-15412,194$15,663,372None
Qube Research & Technologies Ltd2026-06-302026-08-1512,141$453,588None
Neo Ivy Capital Management2026-06-302026-08-1528,494$1,064,535None
Diametric Capital, LP2026-06-302026-08-159,972$372,553None
Caption Management, LLC2026-06-302026-08-15120,000$4,483,200Call
OSAIC HOLDINGS, INC.2026-06-302026-08-1522,156$827,748None
OSAIC HOLDINGS, INC.2026-06-302026-08-1557,887$2,162,495None
MetLife Investment Management, LLC2026-06-302026-08-1542,261$1,578,871None
JANE STREET GROUP, LLC2026-06-302026-08-1593,880$3,507,357None
JANE STREET GROUP, LLC2026-06-302026-08-157,800$291,408Call
State of Tennessee, Department of Treasury2026-06-302026-08-1528,082$1,049,144None
PDT Partners, LLC2026-06-302026-08-15111,226$4,155,403None
Uniplan Investment Counsel, Inc.2026-06-302026-08-155,319$198,742None
Uniplan Investment Counsel, Inc.2026-06-302026-08-15156,062$5,830,503None
Legal & General Group Plc2026-06-302026-08-1565,636$2,452,163None
Legal & General Group Plc2026-06-302026-08-1513,605$508,283None
Legal & General Group Plc2026-06-302026-08-15110,205$4,117,259None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15155,500$5,809,480Call

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

OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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