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Public ownership evidence

Teradyne, Inc. Common Stock (TER) Ownership Disclosures

Read TER 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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2026-11-032026-11-02JOHNSON MERCEDESS166Not reported

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

The displayed observation date is 2026-11-02 and its public availability date is 2026-11-03. Subtracting those calendar dates gives 1 day 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 S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

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 0000904454-26-000583 ↗SEC 0000904454-26-000526 ↗SEC 0000904454-26-000521 ↗

Recent Form 4 activity

Inspect all 14 displayed rows: Recent Form 4 activity

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2026-11-032026-11-02JOHNSON MERCEDESS166Not reported
2026-10-222026-10-21MATZ MARILYNS400Not reported
2026-10-192026-10-15Smith Gregory StephenS4,000Not reported
2026-10-192026-10-15MATZ MARILYNS800Not reported
2026-10-022026-10-01JOHNSON MERCEDESS167Not reported
2026-09-282026-09-24Herweck PeterA77Not reported
2026-09-282026-09-24TUFANO PAUL JA141Not reported
2026-09-282026-09-24Henry Andrew ChisholmA64Not reported
2026-09-182026-09-17MATZ MARILYNS400Not reported
2026-09-162026-09-15Smith Gregory StephenS4,000Not reported
2026-09-162026-09-15MATZ MARILYNS800Not reported
2026-09-032026-09-01JOHNSON MERCEDESS167Not reported
2026-08-192026-08-17Smith Gregory StephenS4,000Not reported
2026-08-192026-08-17MATZ MARILYNS1,200Not 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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Cornerstone Financial Management LLC2026-06-302026-08-29152$73,544None
Cornerstone Financial Management LLC2026-03-312026-08-29128$37,947None
Cornerstone Financial Management LLC2025-12-312026-08-29120$23,227None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-2810,228$4,948,716None
Advisors Asset Management, Inc.2021-12-312026-08-2831,416$5,137,458None
Advisors Asset Management, Inc.2022-12-312026-08-288,636$754,355None
Advisors Asset Management, Inc.2020-06-302026-08-287,055$596,218None
Advisors Asset Management, Inc.2022-06-302026-08-2824,020$2,151,000None
Advisors Asset Management, Inc.2021-09-302026-08-2830,160$3,293,000None
Corient Private Wealth LP2026-06-302026-08-2876,075$36,808,251None
Corient Private Wealth LP2026-06-302026-08-283,508$1,697,151None
VELA Investment Management, LLC2026-06-302026-08-28619$299,497None
VELA Investment Management, LLC2025-12-312026-08-2822,060$4,269,934None
Principia Wealth Advisory, LLC2026-06-302026-08-2713$6,290None
Principia Wealth Advisory, LLC2026-03-312026-08-2711$3,261None
Advisors Asset Management, Inc.2024-03-312026-08-27546$61,605None
Advisors Asset Management, Inc.2025-03-312026-08-279,395$776,027None
Advisors Asset Management, Inc.2022-09-302026-08-2716,689$1,254,000None
Advisors Asset Management, Inc.2020-12-312026-08-2716,899$2,026,000None
Advisors Asset Management, Inc.2022-03-312026-08-2727,726$3,278,045None
Advisors Asset Management, Inc.2023-06-302026-08-271,455$161,985None
Advisors Asset Management, Inc.2023-09-302026-08-27805$80,870None
Advisors Asset Management, Inc.2023-03-312026-08-273,969$426,707None
Advisors Asset Management, Inc.2021-03-312026-08-2723,076$2,807,888None
Advisors Asset Management, Inc.2021-06-302026-08-2727,732$3,715,000None
Advisors Asset Management, Inc.2020-09-302026-08-2711,869$943,111None
Advisors Asset Management, Inc.2025-09-302026-08-2710,542$1,451,001None
Advisors Asset Management, Inc.2023-12-312026-08-27641$69,561None
Dakota Wealth Management2025-09-302026-08-276,012$827,493None
Dakota Wealth Management2025-12-312026-08-276,610$1,279,514None
Dakota Wealth Management2026-03-312026-08-274,434$1,314,634None
Redwood Investment Management, LLC2025-12-312026-08-275,638$1,091,000None
Groupe la Francaise2026-06-302026-08-2614,273$6,907,661None
Advisors Asset Management, Inc.2019-12-312026-08-265,628$383,773None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-262,740$1,325,722None
Advisors Asset Management, Inc.2025-06-302026-08-2510,639$956,659None
CYBER HORNET ETFs LLC2026-06-302026-08-25428$207,084None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25238,919$115,598,569None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25115,598,569$238,919,000None
Advisors Asset Management, Inc.2024-09-302026-08-222,753$368,709None
Advisors Asset Management, Inc.2024-06-302026-08-222,077$307,998None
Advisors Asset Management, Inc.2024-12-312026-08-226,897$868,470None
Advisors Asset Management, Inc.2025-12-312026-08-2210,826$2,095,481None
Advisors Asset Management, Inc.2020-03-312026-08-226,498$351,997None
WEST MICHIGAN ADVISORS, LLC2026-06-302026-08-222,978$1,440,876None
Assenagon Asset Management S.A.2026-06-302026-08-2247,313$22,891,922None
ASHFORD CAPITAL MANAGEMENT INC2026-06-302026-08-2210,499$5,079,836None
Forefront Wealth Partners, LLC2026-06-302026-08-21522$252,767None
Harvest Fund Management Co., Ltd2026-06-302026-08-2133,211$16,049,000None
Rehmann Capital Advisory Group2026-06-302026-08-21642$310,657None

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

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗

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.