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 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Willdan Group, Inc.: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-16
Trade date
2026-09-15
Reporting owners
Brisbin Thomas Donald
Code
S
Shares
900
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 0001395188-26-000010
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 WLDN fundamentals

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

Read WLDN 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

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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

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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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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