WILLDAN GROUP INC (WLDN) Stock Institutional Trading Activity


WILLDAN GROUP INC (WLDN) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-30,40024,000$2,487,840
Q3 2025Renaissance Technologies LLCSell-53,20054,400$5,259,936
Q2 2025Renaissance Technologies LLCSell-20,900107,600$6,726,076
Q1 2025Renaissance Technologies LLCBuy12,800128,500$5,232,520
Q4 2024Renaissance Technologies LLCSell-6,200115,700$4,407,013
Q3 2024Renaissance Technologies LLCBuy66,474121,900$4,991,805
Q2 2024Renaissance Technologies LLCBuy42,82655,426$1,599,040
Q1 2024Renaissance Technologies LLCSell-7,40212,600$365
Q2 2021Renaissance Technologies LLCSell-66,39820,002$753
Q1 2021Renaissance Technologies LLCBuy38,70086,400$3,547
Q1 2019Renaissance Technologies LLCBuy37,30047,700$1,768
Q3 2018Renaissance Technologies LLCSell-118,70010,400$353
Q1 2018Renaissance Technologies LLCSell-130,200129,100$3,660
Q4 2017Renaissance Technologies LLCSell-119,900259,300$6,208
Q3 2017Renaissance Technologies LLCSell-96,500379,200$12,309
Q2 2017Renaissance Technologies LLCBuy2,984475,700$14,533
Q1 2017Renaissance Technologies LLCSell-34,273472,716$15,250
Q4 2016Renaissance Technologies LLCBuy141,189506,989$11,453
Q3 2016Renaissance Technologies LLCBuy58,700365,800$6,420
Q2 2016Renaissance Technologies LLCBuy29,900307,100$3,261
Q1 2016Renaissance Technologies LLCBuy5,600277,200$2,675
Q4 2015Renaissance Technologies LLCBuy5,951271,600$2,276
Q3 2015Renaissance Technologies LLCSell-30,967265,649$2,694
Q2 2015Renaissance Technologies LLCBuy178,516296,616$3,316
Q1 2015Renaissance Technologies LLCBuy51,500118,100$1,871
Q4 2014Renaissance Technologies LLCSell-56,10066,600$898
Q3 2014Renaissance Technologies LLCBuy99,441122,700$1,774
Q2 2014Renaissance Technologies LLCBuy23,25923,259$202

Frequently asked questions about WLDN activity

  • Which institutional owners are buying WLDN?

    Institutional owners buying WLDN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in WLDN activity?

    "Buy" means an investor increased their reported position in WLDN compared to the prior reporting period. This reflects growing exposure to WILLDAN GROUP INC (WLDN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in WLDN increasing?

    Institutional interest in WLDN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.