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Public ownership evidence

Willdan Group, Inc. (WLDN) Ownership Disclosures

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

As of 2026-11-10T07:40:50.020Z

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2026-09-162026-09-15Brisbin Thomas DonaldS900Not reported

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

The displayed observation date is 2026-09-15 and its public availability date is 2026-09-16. 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 0001395188-26-000010 ↗SEC 0001395188-26-000010 ↗SEC 0001395188-26-000008 ↗

Recent Form 4 activity

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2026-09-162026-09-15Brisbin Thomas DonaldS900Not reported
2026-09-162026-09-15Brisbin Thomas DonaldS4,005Not reported
2026-09-092026-09-08Brisbin Thomas DonaldS3,439Not reported
2026-09-052026-09-03Brisbin Thomas DonaldS58,757Not 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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VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-263,250$248,820None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2610,250$810,775None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2516,512$1,306,099None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,306,099$16,512,000None
Kings Path Partners LLC2026-03-312026-08-222,860$218,962None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-209,547$755,185None
Pure Financial Advisors, LLC2026-06-302026-08-187,860$621,726None
Transamerica Financial Advisors, LLC2026-06-302026-08-181,233$97,530None
Jefferies Financial Group Inc.2026-06-302026-08-1841,200$3,258,920None
EFG International AG2026-06-302026-08-1520$1,582None
EFG International AG2026-06-302026-08-1545,137$3,568,983None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-159,825$777,158None
SEI INVESTMENTS CO2026-06-302026-08-1514,413$1,140,068None
SEI INVESTMENTS CO2026-06-302026-08-15912$72,210None
Marex Group Ltd2026-06-302026-08-157,000$553,700Call
Polymer Capital Management (US) LLC2026-06-302026-08-1516,574$1,311,003None
Quarry LP2026-06-302026-08-1539$3,085None
Integrated Quantitative Investments LLC2026-06-302026-08-153,412$269,889None
Divisadero Street Capital Management, LP2026-06-302026-08-151,324,293$104,751,576None
Ameritas Advisory Services, LLC2026-06-302026-08-152$158None
ALTA FOX CAPITAL MANAGEMENT, LLC2026-06-302026-08-15359,806$28,460,655None
Concentric Capital Strategies, LP2026-06-302026-08-153,884$307,224None
Conversant Capital LLC2026-06-302026-08-15294,500$23,294,950None
Militia Capital Partners, LP2025-12-312026-08-1517,000$1,762,220None
Militia Capital Partners, LP2025-09-302026-08-1515,000$1,450,350None
Militia Capital Partners, LP2025-06-302026-08-1515,000$937,650None
Militia Capital Partners, LP2025-03-312026-08-1516,000$651,520None
XTX Topco Ltd2026-06-302026-08-155,073$401,274None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15120,143$9,503,311None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15120,143$9,503,311None
Qube Research & Technologies Ltd2026-06-302026-08-1555,445$4,385,700None
OSAIC HOLDINGS, INC.2026-06-302026-08-15220$17,402None
OSAIC HOLDINGS, INC.2026-06-302026-08-1511,512$910,588None
Man Group plc2026-06-302026-08-1520,469$1,619,098None
MetLife Investment Management, LLC2026-06-302026-08-158,908$704,623None
JANE STREET GROUP, LLC2026-06-302026-08-1510,183$805,475None
JANE STREET GROUP, LLC2026-06-302026-08-1579,746$6,307,909None
JANE STREET GROUP, LLC2026-06-302026-08-1513,200$1,044,120Put
JANE STREET GROUP, LLC2026-06-302026-08-1542,600$3,369,660Call
PDT Partners, LLC2026-06-302026-08-153,549$280,726None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1535,615$2,817,147None
Legal & General Group Plc2026-06-302026-08-159,665$764,501None
Legal & General Group Plc2026-06-302026-08-152,914$230,497None
Legal & General Group Plc2026-06-302026-08-151,422$112,480None
HRT FINANCIAL LP2026-06-302026-08-1524,595$1,945,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1532,100$2,539,110Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-159,300$735,630Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1519,300$1,526,630None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-154,936$390,438None
TWINBEECH CAPITAL LP2026-06-302026-08-159,100$719,810None

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

VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Kings Path Partners LLC ↗MERCER GLOBAL ADVISORS INC /ADV ↗Pure Financial Advisors, LLC ↗Transamerica Financial Advisors, LLC ↗Jefferies Financial Group Inc. ↗EFG International AG ↗

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.