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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 2026-11-07T14:03:26.246Z

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2026-10-072026-10-05Henry Mary CA7,981Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-05 and its public availability date is 2026-10-07. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001784794-26-000007 ↗SEC 0001931555-26-000007 ↗SEC 0001936128-26-000027 ↗

Recent Form 4 activity

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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

Inspect all 50 displayed rows: 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.

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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.

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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.