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 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

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

Available
2026-10-02
Trade date
2026-10-01
Reporting owners
JOHNSON MERCEDES
Code
S
Shares
167
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 0000904454-26-000502
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 TER fundamentals

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

Read TER 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
2026-10-022026-10-01JOHNSON 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
2026-08-052026-08-03JOHNSON MERCEDESS166Not reported
2026-07-172026-07-15Smith Gregory StephenS4,000Not reported
2026-07-172026-07-15MATZ MARILYNS1,200Not 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.

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.

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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