WLDN · Willdan Group, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 248 13F filersWho Holds WLDN
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 245 filers, like-for-like change +18.5%; actively managed books +24.0%; index-like books +6.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 54.6% | 122 | +26.1% |
| Exempt adviser | 0.6% | 4 | -57.4% |
| Adviser | 4.9% | 9 | +43.2% |
| Bank | 6.2% | 16 | -1.1% |
| Insurer | 0.3% | 2 | +22.3% |
| Broker-dealer | 0.1% | 2 | -15.2% |
| Benefit plan | 0.3% | 5 | -23.6% |
| Non-US | 2.2% | 7 | +18.5% |
| Holding company | 17.5% | 9 | +27.2% |
| Unknown | 13.1% | 69 | -2.8% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 29.0% | 33 | +6.8% |
| Systematic-like | 3.6% | 20 | -55.8% |
| Concentrated | 5.4% | 21 | +275.4% |
| Diversified active | 62.0% | 171 | +30.1% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 43.4% | 138 | +4.1% |
| Medium turnover | 39.4% | 55 | +88.9% |
| High turnover | 5.9% | 33 | -50.1% |
| Unknown | 11.3% | 19 | +12.1% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 12.3% | 32 | +7.7% |
| Medium horizon | 26.6% | 34 | +75.5% |
| Long horizon | 51.4% | 159 | +15.4% |
| Unknown | 9.7% | 20 | -26.9% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 7.3% | 42 | +108.9% |
| $1B to $10B | 25.1% | 71 | +114.9% |
| $10B to $100B | 15.5% | 70 | -16.9% |
| $100B or more | 52.2% | 62 | +3.0% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 2.0% | 60 | -17.4% |
| Pooled investment vehicles | 17.6% | 17 | +93.7% |
| Registered funds and BDCs | 21.3% | 18 | +18.9% |
| Pension and profit sharing plans | 0.0% | 1 | -9.1% |
| Insurance companies | 0.1% | 3 | +27.6% |
| Governments and sovereign funds | 2.4% | 7 | -40.7% |
| Corporations | 2.0% | 1 | +492.2% |
| Other investment advisers | 0.0% | 2 | -5.2% |
| Other | 0.4% | 1 | -19.0% |
| Diversified | 8.7% | 12 | -1.6% |
| Unknown | 45.4% | 123 | +10.4% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 17.5% | 26 | +17.2% |
| Private equity funds | 0.7% | 7 | -66.9% |
| Venture capital funds | 0.0% | 1 | +86.7% |
| Real estate funds | 0.0% | 4 | +485.7% |
| Securitized asset funds | 0.2% | 1 | +30.2% |
| Other private funds | 13.4% | 10 | +48.6% |
| Mixed private funds | 5.1% | 3 | +1440.7% |
| Private funds, type not stated | 0.7% | 1 | +16.6% |
| No private funds | 17.6% | 73 | -0.2% |
| Unknown | 44.8% | 119 | +12.8% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 91.5% | 203 | +20.1% |
| Outside the US | 8.5% | 42 | +3.3% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 2 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
245 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $30,639,686 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 52.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies WLDN's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | BLFS Biolife Solutions Inc | 5 |
| 2 | CVLG Covenant Logistics Group, Inc. | 3 |
| 3 | OUST Ouster, Inc. | 6 |
| 4 | PAHC Phibro Animal Health Corp | 3 |
| 5 | LQDT Liquidity Services Inc | 3 |
| 6 | COCO Vita Coco Company, Inc. | 4 |
| 7 | CECO Ceco Environmental Corp | 6 |
| 8 | AMSC American Superconductor Corp | 4 |
| 9 | PNTG Pennant Group, Inc. | 4 |
| 10 | FSS Federal Signal Corp | 6 |
Shareholder Targets
13F filers that own its peers but not WLDN, quarter ended Jun 30, 2026Found through its holder-overlap peers: BLFS, CVLG, OUST, PAHC, LQDT, COCO, CECO, AMSC, PNTG, FSS, VCEL, IRMD, WK, NCNO, LMAT, AGYS, SKYW, QTWO, OPLN, PLOW. 1,057 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $595,159,357 8 held | CECO, BLFS, FSS |
| 2 | CONGRESS ASSET MANAGEMENT CO Registered adviser, Diversified active | $395,362,388 4 held | VCEL, FSS, LMAT |
| 3 | Capital World Investors Adviser, Diversified active | $393,434,825 2 held | FSS, CECO |
| 4 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser, Diversified active | $364,513,670 14 held | WK, CECO, SKYW |
| 5 | Driehaus Capital Management LLC Registered adviser, Diversified active | $359,480,826 5 held | CECO, COCO, OPLN |
| 6 | NEUBERGER BERMAN GROUP LLC Holding company, Diversified active | $343,284,109 11 held | FSS, OPLN, SKYW |
| 7 | BANK OF MONTREAL /CAN/ Bank, Diversified active | $282,103,879 10 held | OPLN, NCNO, FSS |
| 8 | GW&K Investment Management, LLC Registered adviser, Diversified active | $277,585,377 4 held | FSS, VCEL, CECO |
| 9 | LOOMIS SAYLES & CO L P Registered adviser, Diversified active | $230,284,021 7 held | COCO, VCEL, AGYS |
| 10 | D. E. Shaw & Co., Inc. Unknown, Systematic-like | $217,179,302 15 held | COCO, OPLN, QTWO |
Fund Ownership of WLDN by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 15.29% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 3.23% | 491,596 |
| Index ETFs | 12.06% | 1,836,853 |
| Active ETFs | 1.32% | 200,780 |
| Active funds | 14.59% | 2,222,227 |
| Unclassified | 0.27% | 41,091 |
| All registered funds | 31.46% | 4,792,547 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $113,795,073 | 10.53% | 1,438,623 | Shares | 2026-08-07 | |
| Mid Divisadero Street Capital Management, LP Registered adviser | $104,751,576 | 9.69% | 1,324,293 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $50,063,655 | 4.63% | 632,916 | Shares | 2026-08-13 | |
| Mid NEUMEIER POMA INVESTMENT COUNSEL LLC Registered adviser | $41,939,611 | 3.88% | 530,210 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $41,705,633 | 3.86% | 527,252 | Shares | 2026-08-13 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $30,905,950 | 2.86% | 390,720 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $30,326,860 | 2.81% | 383,399 | Shares | 2026-08-12 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $28,561,348 | 2.64% | 361,079 | Shares | 2026-08-11 | |
| Small ALTA FOX CAPITAL MANAGEMENT, LLC Registered adviser | $28,460,654 | 2.63% | 359,806 | Shares | 2026-08-14 | |
| Mega Swedbank AB | $27,661,270 | 2.56% | 349,700 | Shares | 2026-07-15 | |
| Mega STATE STREET CORP Bank | $26,692,215 | 2.47% | 337,449 | Shares | 2026-09-22 | |
| Large WASATCH ADVISORS LP Registered adviser | $26,381,365 | 2.44% | 357,084 | Shares | 2026-10-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $25,379,786 | 2.35% | 320,857 | Shares | 2026-08-11 | |
| Small Conversant Capital LLC Registered adviser | $23,294,950 | 2.16% | 294,500 | Shares | 2026-08-14 | |
| Mid Ranger Investment Management, L.P. Registered adviser | $21,767,608 | 2.01% | 275,191 | Shares | 2026-08-13 | |
| Mid OBERWEIS ASSET MANAGEMENT INC/ Registered adviser | $20,779,570 | 1.92% | 262,700 | Shares | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $20,603,254 | 1.91% | 260,471 | Shares | 2026-08-14 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $16,681,794 | 1.54% | 210,895 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $16,671,985 | 1.54% | 210,771 | Shares | 2026-08-11 | |
| Large Handelsbanken Fonder AB Non-US | $15,150,181 | 1.40% | 191,532 | Shares | 2026-07-10 | |
| Mid RBF Capital, LLC | $14,601,860 | 1.35% | 184,600 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $12,920,746 | 1.20% | 163,347 | Shares | 2026-08-13 | |
| Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser | $12,902,554 | 1.19% | 163,117 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $12,281,777 | 1.14% | 155,269 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $11,910,403 | 1.10% | 150,574 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $11,379,797 | 1.05% | 143,866 | Shares | 2026-08-06 | |
| Mid NEXT CENTURY GROWTH INVESTORS LLC Adviser | $9,998,793 | 0.93% | 126,407 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $9,503,311 | 0.88% | 120,143 | Shares | 2026-08-14 | |
| Large PANAGORA ASSET MANAGEMENT INC Registered adviser | $9,072,849 | 0.84% | 114,701 | Shares | 2026-08-06 | |
| Mega MORGAN STANLEY Holding company | $8,796,234 | 0.81% | 111,204 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $8,596,192 | 0.80% | 108,675 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $7,964,579 | 0.74% | 100,690 | Shares | 2026-08-13 | |
| Large LORD, ABBETT & CO. LLC Registered adviser | $7,824,018 | 0.72% | 98,913 | Shares | 2026-08-14 | |
| Mid KENNEDY CAPITAL MANAGEMENT LLC Registered adviser | $7,703,628 | 0.71% | 97,391 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $7,661,150 | 0.71% | 96,854 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $7,113,383 | 0.66% | 89,929 | Shares | 2026-08-14 | |
| Mid Portolan Capital Management, LLC | $6,675,565 | 0.62% | 84,394 | Shares | 2026-08-14 | |
| Small Summit Creek Advisors LLC Registered adviser | $6,601,923 | 0.61% | 83,463 | Shares | 2026-08-07 | |
| Large Asset Management One Co., Ltd. Registered adviser | $6,113,876 | 0.57% | 77,293 | Shares | 2026-07-28 | |
| Mid KORNITZER CAPITAL MANAGEMENT INC /KS Registered adviser | $5,425,073 | 0.50% | 68,585 | Shares | 2026-07-31 | |
| Small ESSEX INVESTMENT MANAGEMENT CO LLC Registered adviser | $5,360,511 | 0.50% | 72,557 | Shares | 2026-10-19 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $4,698,617 | 0.43% | 59,401 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $4,662,547 | 0.43% | 58,945 | Shares | 2026-08-06 | |
| Large Thrivent Financial for Lutherans Registered adviser | $4,449,295 | 0.41% | 56,249 | Shares | 2026-08-14 | |
| Mid OP Asset Management Ltd | $4,413,780 | 0.41% | 55,800 | Shares | 2026-07-28 | |
| Mega DEUTSCHE BANK AG\ Non-US | $4,408,321 | 0.41% | 55,731 | Shares | 2026-08-07 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $4,385,699 | 0.41% | 55,445 | Shares | 2026-08-14 | |
| Large Janney Montgomery Scott LLC Adviser | $4,135,506 | 0.38% | 52,282 | Shares | 2026-08-05 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $3,927,551 | 0.36% | 49,653 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $3,604,348 | 0.33% | 45,567 | Shares | 2026-08-14 | |
| Mid EFG International AG | $3,571,918 | 0.33% | 45,157 | Shares | 2026-08-14 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $3,551,273 | 0.33% | 44,896 | Shares | 2026-09-23 | |
| Mega JANE STREET GROUP, LLC | $3,369,660 | 0.31% | 42,600 | Call | 2026-08-14 | |
| Large Jefferies Financial Group Inc. Holding company | $3,258,920 | 0.30% | 41,200 | Shares | 2026-08-17 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $3,088,933 | 0.29% | 39,051 | Shares | 2026-08-04 | |
| Small CVFG LLC Registered adviser | $2,946,475 | 0.27% | 37,250 | Shares | 2026-08-11 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC Registered adviser | $2,817,146 | 0.26% | 35,615 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $2,742,315 | 0.25% | 34,669 | Shares | 2026-08-12 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $2,698,259 | 0.25% | 34,112 | Shares | 2026-08-14 | |
| Large MML INVESTORS SERVICES, LLC | $2,668,834 | 0.25% | 33,740 | Shares | 2026-08-07 | |
| Mega AMERICAN CENTURY COMPANIES INC | $2,632,289 | 0.24% | 33,278 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,539,110 | 0.23% | 32,100 | Call | 2026-08-14 | |
| Mid RICE HALL JAMES & ASSOCIATES, LLC Registered adviser | $2,418,798 | 0.22% | 30,579 | Shares | 2026-08-07 | |
| Mega RAYMOND JAMES FINANCIAL INC | $2,314,386 | 0.21% | 29,259 | Shares | 2026-08-14 | |
| Mega Swiss National Bank | $2,293,900 | 0.21% | 29,000 | Shares | 2026-08-11 | |
| Mega CITIGROUP INC Bank | $2,263,445 | 0.21% | 28,615 | Shares | 2026-08-03 | |
| Large ALPS ADVISORS INC Registered adviser | $2,260,440 | 0.21% | 28,577 | Shares | 2026-07-29 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $2,217,881 | 0.21% | 28,039 | Shares | 2026-08-13 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $2,194,787 | 0.20% | 27,747 | Shares | 2026-08-13 | |
| Mid Conestoga Capital Advisors, LLC Adviser | $2,183,713 | 0.20% | 27,607 | Shares | 2026-07-24 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $2,011,117 | 0.19% | 25,425 | Shares | 2026-08-14 | |
| Mid Legato Capital Management LLC Registered adviser | $1,995,930 | 0.18% | 25,233 | Shares | 2026-08-06 | |
| Large HRT FINANCIAL LP | $1,945,464 | 0.18% | 24,595 | Shares | 2026-08-14 | |
| Mid WHITTIER TRUST CO | $1,871,268 | 0.17% | 23,657 | Shares | 2026-07-28 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,819,300 | 0.17% | 23,000 | Call | 2026-09-02 | |
| Mega Invesco Ltd. Adviser | $1,797,149 | 0.17% | 22,720 | Shares | 2026-08-14 | |
| Large STOREBRAND ASSET MANAGEMENT AS | $1,793,038 | 0.17% | 22,668 | Shares | 2026-08-12 | |
| Large Balyasny Asset Management L.P. Registered adviser | $1,782,439 | 0.16% | 22,534 | Shares | 2026-08-14 | |
| Small De Lisle Partners LLP Non-US | $1,661,100 | 0.15% | 21,000 | Shares | 2026-08-12 | |
| Large LOS ANGELES CAPITAL MANAGEMENT LLC Registered adviser | $1,638,240 | 0.15% | 20,711 | Shares | 2026-08-13 | |
| Large Man Group plc | $1,619,097 | 0.15% | 20,469 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $1,576,383 | 0.15% | 19,929 | Shares | 2026-08-07 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,526,630 | 0.14% | 19,300 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $1,493,566 | 0.14% | 18,882 | Shares | 2026-08-12 | |
| Mega BARCLAYS PLC Bank | $1,464,377 | 0.14% | 18,513 | Shares | 2026-08-14 | |
| Large NATIXIS ADVISORS, LLC Registered adviser | $1,317,173 | 0.12% | 16,652 | Shares | 2026-08-14 | |
| Small Polymer Capital Management (US) LLC | $1,311,003 | 0.12% | 16,574 | Shares | 2026-08-14 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $1,307,206 | 0.12% | 16,526 | Shares | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $1,306,099 | 0.12% | 16,512 | Shares | 2026-08-24 | |
| Mid Longaeva Partners L.P. | $1,289,883 | 0.12% | 16,307 | Shares | 2026-08-14 | |
| Mega SEI INVESTMENTS CO | $1,212,207 | 0.11% | 15,325 | Shares | 2026-08-14 | |
| Large Cetera Investment Advisers Registered adviser | $1,211,732 | 0.11% | 15,319 | Shares | 2026-08-12 | |
| Small WULFF, HANSEN & CO. Registered adviser | $1,210,388 | 0.11% | 15,302 | Shares | 2026-08-05 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $1,173,448 | 0.11% | 14,835 | Shares | 2026-08-14 | |
| Large Sanctuary Advisors, LLC | $1,165,143 | 0.11% | 14,730 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $1,107,478 | 0.10% | 14,001 | Shares | 2026-08-14 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $1,050,210 | 0.10% | 13,277 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $1,044,120 | 0.10% | 13,200 | Put | 2026-08-14 | |
| Mega HSBC HOLDINGS PLC | $1,041,983 | 0.10% | 13,173 | Shares | 2026-08-14 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $1,021,101 | 0.09% | 12,909 | Shares | 2026-08-13 |
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