WLDNWilldan Group, Inc.Industrials · Engineering & Constructionas of 2026-09-16
Horizon

Issued 2026-09-16 at $78.38 · now $78.38 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, WLDN has typically landed between $63.39 and $100.38 — a range of −19.1% to +28.1% from the issuance price $78.38.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

4,962 overlapping 1 month windows · 2006-11-212026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.756.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($78.38) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where WLDN has typically landed a month from the 2026-09-16 close of $78.38 — the range is history, not a prediction.

$63.39worst · -19.1%$100.38best · +28.1%
  • now $78.38 (+0.0%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $79.23 (+1.1%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $70.39$88.06
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $63.39$100.38
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 4,962 windows spanning 2006-11-21 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2012-05-02−51.0%−52.1%+0.0%
2012-04-23−50.9%−50.9%+2.6%
2012-04-25−50.9%−50.9%+2.6%
3 best
2009-08-14+101.5%+0.0%+161.2%
2009-07-27+94.4%−25.6%+94.4%
2009-08-17+85.3%+0.0%+133.3%

4,962 overlapping windows · 2006-11-212026-09-16 · not cherry-picked

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~20 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
45%
−0.2%
n=20
Feb
35%
−3.3%
n=20
Mar
45%
+3.6%
n=20
Apr
45%
−0.9%
n=20
May
50%
+5.1%
n=20
Jun
65%
+3.2%
n=20
Jul
25%
−0.3%
n=20
Aug
70%
+13.6%
n=20
Sep
40%
−0.7%
n=20
Oct
26%
−5.6%
n=19
Nov
63%
+10.2%
n=19
Dec
50%
+0.7%
n=20

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$135$672026-09-15: 2 insider sales, $389K — Brisbin Thomas Donald …2026-09-08: 1 insider sale, $303K — Brisbin Thomas Donald2026-09-03: 1 insider sale, $5.2M — Brisbin Thomas Donald2026-05-14: 4 insider sales, $5.2M — BIEBER MICHAEL A …2026-05-13: 1 insider sale, $926K — BIEBER MICHAEL A2026-03-06: 1 insider sale, $491K — Cohen Steven A2025-09-18: 2 insider sales, $1.8M — CHEN MICAH, McGinn Dennis V2025-08-25: 1 insider sale, $612K — Brisbin Thomas Donald2025-08-22: 7 insider sales, $12.8M — Brisbin Thomas Donald …2025-08-21: 6 insider sales, $13.1M — Brisbin Thomas Donald …2025-08-20: 1 insider sale, $772K — Brisbin Thomas Donald2025-08-18: 6 insider sales, $14.3M — Brisbin Thomas Donald …2025-08-15: 1 insider sale, $302K — Downes Cynthia2025-08-14: 1 insider sale, $102K — REDER WANDA KAY2025-08-13: 1 insider sale, $905K — EARLY CREIGHTON K2025-08-12: 1 insider sale, $291K — Cohen Steven A2025-08: 25 open-market sales, $43.1M2025-09: 2 open-market sales, $1.8M2026-03: 1 open-market sale, $491K2026-05: 5 open-market sales, $6.1M2026-09: 4 open-market sales, $5.9M↑ buys↓ salesdirector Brisbin Thomas Donald — Sale on 2026-09-15, filed 1 day after the tradedirector Brisbin Thomas Donald — Sale on 2026-09-15, filed 1 day after the tradedirector Brisbin Thomas Donald — Sale on 2026-09-08, filed 1 day after the tradedirector Brisbin Thomas Donald — Sale on 2026-09-03, filed 1 day after the tradedirector BIEBER MICHAEL A — Sale on 2026-05-14, filed 1 day after the tradedirector BIEBER MICHAEL A — Sale on 2026-05-14, filed 1 day after the tradedirector BIEBER MICHAEL A — Sale on 2026-05-14, filed 1 day after the tradedirector BIEBER MICHAEL A — Sale on 2026-05-14, filed 1 day after the tradedirector BIEBER MICHAEL A — Sale on 2026-05-13, filed 1 day after the tradedirector Cohen Steven A — Sale on 2026-03-06, filed 4 days after the tradeofficer CHEN MICAH — Sale on 2025-09-18, filed 4 days after the tradedirector McGinn Dennis V — Sale on 2025-09-18, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-25, filed 1 day after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-22, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-21, filed 4 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-20, filed 1 day after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Brisbin Thomas Donald — Sale on 2025-08-18, filed 2 days after the tradedirector Downes Cynthia — Sale on 2025-08-15, filed 3 days after the tradedirector REDER WANDA KAY — Sale on 2025-08-14, filed 4 days after the tradeofficer EARLY CREIGHTON K — Sale on 2025-08-13, filed 2 days after the tradedirector Cohen Steven A — Sale on 2025-08-12, filed 2 days after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-09-15Brisbin Thomas DonalddirectorSale4,005 @ $79.01$316K−3.9% of holdingnot yet — horizon still opennot yet — horizon still open97,587Form 4 · filed 1 day after the trade
2026-09-15Brisbin Thomas DonalddirectorSale900 @ $80.91$73K−0.9% of holdingnot yet — horizon still opennot yet — horizon still open96,687Form 4 · filed 1 day after the trade
2026-09-08Brisbin Thomas DonalddirectorSale3,439 @ $88.19$303K−3.4% of holdingnot yet — horizon still opennot yet — horizon still open96,687Form 4 · filed 1 day after the trade
2026-09-03Brisbin Thomas DonalddirectorSale58,757 @ $88.14$5.2M−37.8% of holdingnot yet — horizon still opennot yet — horizon still open96,687Form 4 · filed 1 day after the trade
2026-05-14BIEBER MICHAEL AdirectorSale25,429 @ $90.88$2.3M−8.3% of holding+3.3%not yet — horizon still open280,772Form 4 · filed 1 day after the trade
2026-05-14BIEBER MICHAEL AdirectorSale23,015 @ $91.95$2.1M−8.2% of holding+3.3%not yet — horizon still open257,757Form 4 · filed 1 day after the trade
2026-05-14BIEBER MICHAEL AdirectorSale7,956 @ $92.65$737K−3.1% of holding+3.3%not yet — horizon still open249,801Form 4 · filed 1 day after the trade
2026-05-14BIEBER MICHAEL AdirectorSale276 @ $93.74$26K−0.1% of holding+3.3%not yet — horizon still open249,525Form 4 · filed 1 day after the trade
2026-05-13BIEBER MICHAEL AdirectorSale9,991 @ $92.65$926K−3.8% of holding+5.8%not yet — horizon still open249,525Form 4 · filed 1 day after the trade
2026-03-06Cohen Steven AdirectorSale6,000 @ $81.82$491K−22.3% of holding−4.3%−11.8%20,849Form 4 · filed 4 days after the trade
2025-09-18CHEN MICAHofficerSale10,000 @ $106.00$1.1M−19.8% of holding−10.4%−27.3%40,423Form 4 · filed 4 days after the trade
2025-09-18McGinn Dennis VdirectorSale7,298 @ $106.32$776K−39.2% of holding−10.4%−27.3%11,330Form 4 · filed 4 days after the trade
2025-08-25Brisbin Thomas DonalddirectorSale5,182 @ $118.15$612K−6.8% of holding−19.9%−7.5%70,696Form 4 · filed 1 day after the trade
2025-08-22Brisbin Thomas DonalddirectorSale33,096 @ $109.39$3.6M−25.2% of holding−14.8%−6.6%98,188Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale27,492 @ $110.84$3.0M−28.0% of holding−14.8%−6.6%70,696Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale24,988 @ $108.90$2.7M−16.0% of holding−14.8%−6.6%131,284Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale10,615 @ $104.58$1.1M−5.6% of holding−14.8%−6.6%177,676Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale8,974 @ $107.65$966K−5.4% of holding−14.8%−6.6%156,272Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale7,520 @ $106.68$802K−4.4% of holding−14.8%−6.6%165,246Form 4 · filed 4 days after the trade
2025-08-22Brisbin Thomas DonalddirectorSale4,910 @ $105.36$517K−2.8% of holding−14.8%−6.6%172,766Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale33,950 @ $104.66$3.6M−13.3% of holding−5.8%−4.1%221,771Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale33,380 @ $105.91$3.5M−15.1% of holding−5.8%−4.1%188,391Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale33,464 @ $103.95$3.5M−11.6% of holding−5.8%−4.1%255,721Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale17,106 @ $103.01$1.8M−5.6% of holding−5.8%−4.1%289,185Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale7,000 @ $101.87$713K−2.2% of holding−5.8%−4.1%306,291Form 4 · filed 4 days after the trade
2025-08-21Brisbin Thomas DonalddirectorSale100 @ $106.34$11K−0.1% of holding−5.8%−4.1%188,291Form 4 · filed 4 days after the trade
2025-08-20Brisbin Thomas DonalddirectorSale7,405 @ $104.19$772K−2.3% of holding−4.2%+6.7%313,291Form 4 · filed 1 day after the trade
2025-08-18Brisbin Thomas DonalddirectorSale58,303 @ $109.51$6.4M−14.1% of holding−9.3%−1.1%354,160Form 4 · filed 2 days after the trade
2025-08-18Brisbin Thomas DonalddirectorSale33,233 @ $108.63$3.6M−7.5% of holding−9.3%−1.1%412,463Form 4 · filed 2 days after the trade
2025-08-18Brisbin Thomas DonalddirectorSale26,258 @ $110.51$2.9M−7.4% of holding−9.3%−1.1%327,902Form 4 · filed 2 days after the trade
2025-08-18Brisbin Thomas DonalddirectorSale7,206 @ $111.21$801K−2.2% of holding−9.3%−1.1%320,696Form 4 · filed 2 days after the trade
2025-08-18Brisbin Thomas DonalddirectorSale4,782 @ $112.30$537K−1.1% of holding−9.3%−1.1%445,996Form 4 · filed 2 days after the trade
2025-08-18Brisbin Thomas DonalddirectorSale300 @ $113.01$34K−0.1% of holding−9.3%−1.1%445,696Form 4 · filed 2 days after the trade
2025-08-15Downes CynthiadirectorSale2,763 @ $109.43$302K−23.7% of holding−13.6%−4.9%8,909Form 4 · filed 3 days after the trade
2025-08-14REDER WANDA KAYdirectorSale850 @ $119.46$102K−7.4% of holding−20.4%−8.8%10,676Form 4 · filed 4 days after the trade
2025-08-13EARLY CREIGHTON KofficerSale7,764 @ $116.54$905K−9.7% of holding−16.6%−11.2%72,071Form 4 · filed 2 days after the trade
2025-08-12Cohen Steven AdirectorSale2,500 @ $116.34$291K−8.5% of holding−13.1%−12.8%26,849Form 4 · filed 2 days after the trade
2025-05-28EARLY CREIGHTON KofficerSale5,000 @ $53.28$266K−6.5% of holding+10.2%+68.2%72,071Form 4 · filed 1 day after the trade
2025-05-27Brisbin Thomas DonalddirectorSale22,459 @ $52.34$1.2M−5.0% of holding+11.8%+71.5%422,454Form 4 · filed 2 days after the trade
2025-05-23Brisbin Thomas DonalddirectorSale1,626 @ $51.54$84K−0.4% of holding+11.1%+74.5%422,454Form 4 · filed 5 days after the trade
2025-05-22Brisbin Thomas DonalddirectorSale5,915 @ $52.04$308K−1.4% of holding+10.8%+68.5%422,454Form 4 · filed 5 days after the trade
2025-05-19CHEN MICAHofficerSale10,000 @ $50.50$505K−20.6% of holding+16.4%+75.3%38,502Form 4 · filed 2 days after the trade
2025-05-16BIEBER MICHAEL AdirectorSale25,000 @ $48.11$1.2M−11.1% of holding+17.8%+83.4%200,981Form 4 · filed 4 days after the trade
2025-05-16Brisbin Thomas DonalddirectorSale20,000 @ $48.54$971K−4.5% of holding+17.8%+83.4%422,454Form 4 · filed 4 days after the trade
2025-05-16CHEN MICAHofficerSale10,000 @ $48.20$482K−20.6% of holding+17.8%+83.4%38,502Form 4 · filed 4 days after the trade
2025-03-12Shahidehpour MohammaddirectorSale2,273 @ $39.20$89K−15.1% of holding+2.0%+147.3%12,767Form 4 · filed 1 day after the trade
2024-12-09EARLY CREIGHTON KofficerSale4,349 @ $43.13$188K−5.9% of holding−13.2%+31.6%69,146Form 4 · filed 1 day after the trade
2024-12-06EARLY CREIGHTON KofficerSale234 @ $43.50$10K−0.3% of holding−13.0%+29.7%69,146Form 4 · filed 4 days after the trade
2024-11-25Brisbin Thomas DonalddirectorSale7,700 @ $43.45$335K−1.9% of holding−10.9%+26.4%406,704Form 4 · filed 21 days after the trade
2024-11-22Brisbin Thomas DonalddirectorSale7,700 @ $42.34$326K−1.8% of holding−11.3%+26.2%414,404Form 4 · filed 24 days after the trade
2024-11-21Brisbin Thomas DonalddirectorSale7,700 @ $41.69$321K−1.8% of holding−8.4%+29.9%422,104Form 4 · filed 25 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

112 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

DatePersonRoleActionSharesOwned afterFiling
2026-09-15Brisbin Thomas DonalddirectorOption exercise4,905101,592Form 4
2026-09-15Brisbin Thomas DonalddirectorOption exercise4,90522,635Form 4
2026-09-08Brisbin Thomas DonalddirectorOption exercise3,439100,126Form 4
2026-09-08Brisbin Thomas DonalddirectorOption exercise3,43927,540Form 4
2026-09-03Brisbin Thomas DonalddirectorOption exercise58,757155,444Form 4
2026-09-03Brisbin Thomas DonalddirectorOption exercise58,72730,979Form 4
2026-06-17REDER WANDA KAYdirectorAward / grant1,24111,917Form 4
2026-06-17McGinn Dennis VdirectorAward / grant1,24112,571Form 4
2026-06-17Shahidehpour MohammaddirectorAward / grant1,24115,789Form 4
2026-06-17Brisbin Thomas DonalddirectorAward / grant1,24196,687Form 4
2026-06-17Downes CynthiadirectorAward / grant1,24110,150Form 4
2026-06-17Cohen Steven AdirectorAward / grant1,24122,090Form 4
2026-05-14BIEBER MICHAEL AdirectorOption exercise40,009289,534Form 4
2026-05-14BIEBER MICHAEL AdirectorOption exercise16,667306,201Form 4
2026-05-14BIEBER MICHAEL AdirectorOption exercise40,0090Form 4
2026-05-14BIEBER MICHAEL AdirectorOption exercise16,6670Form 4
2026-05-13BIEBER MICHAEL AdirectorOption exercise9,991259,516Form 4
2026-05-13BIEBER MICHAEL AdirectorOption exercise9,99140,009Form 4
2026-03-25BIEBER MICHAEL AdirectorWithheld for tax6,444249,525Form 4
2026-03-25EARLY CREIGHTON KofficerWithheld for tax2,14278,664Form 4
2026-03-25CHEN MICAHofficerWithheld for tax1,66050,050Form 4
2026-03-25BIEBER MICHAEL AdirectorAward / grant15,750255,969Form 4
2026-03-25EARLY CREIGHTON KofficerAward / grant3,78080,806Form 4
2026-03-25CHEN MICAHofficerAward / grant3,78051,710Form 4
2026-03-20BIEBER MICHAEL AdirectorWithheld for tax2,387240,219Form 4
2026-03-20EARLY CREIGHTON KofficerWithheld for tax79477,026Form 4
2026-03-20CHEN MICAHofficerWithheld for tax61547,930Form 4
2026-03-17BIEBER MICHAEL AdirectorWithheld for tax2,625242,606Form 4
2026-03-17EARLY CREIGHTON KofficerWithheld for tax87377,820Form 4
2026-03-17CHEN MICAHofficerWithheld for tax67648,545Form 4
2026-03-16BIEBER MICHAEL AdirectorWithheld for tax7,090245,231Form 4
2026-03-16EARLY CREIGHTON KofficerWithheld for tax2,35678,693Form 4
2026-03-16CHEN MICAHofficerWithheld for tax1,82649,221Form 4
2026-03-16EARLY CREIGHTON KofficerAward / grant4,15881,049Form 4
2026-03-16CHEN MICAHofficerAward / grant4,15851,047Form 4
2026-03-16BIEBER MICHAEL AdirectorAward / grant17,326252,321Form 4
2026-03-11BIEBER MICHAEL AdirectorWithheld for tax7,697234,995Form 4
2026-03-11EARLY CREIGHTON KofficerWithheld for tax2,24476,891Form 4
2026-03-11CHEN MICAHofficerWithheld for tax1,73846,889Form 4
2026-03-11Brisbin Thomas DonalddirectorAward / grant24,75095,446Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures

No congressional trades disclosed for this company.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.