AJGArthur J. Gallagher & Co.Financial Services · Insurance - Brokersas of 2026-09-16
Horizon

Issued 2026-09-16 at $243.78 · now $243.78 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, AJG has typically landed between $220.48 and $268.96 — a range of −9.6% to +10.3% from the issuance price $243.78.

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

4,685 overlapping 1 month windows · 2008-01-022026-08-17 · 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 ($243.78) — 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 AJG has typically landed a month from the 2026-09-16 close of $243.78 — the range is history, not a prediction.

$220.48worst · -9.6%$268.96best · +10.3%
  • now $243.78 (+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). $248.06 (+1.8%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $237.61$258.52
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $220.48$268.96
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 4,685 windows spanning 2008-01-02 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
2020-02-19−36.7%−36.7%+0.0%
2020-02-21−36.4%−36.4%+0.0%
2009-01-30−36.1%−36.1%+2.0%
3 best
2009-03-30+34.6%+0.0%+34.6%
2009-03-31+32.2%−0.8%+32.2%
2009-04-08+28.0%+0.0%+30.4%

4,685 overlapping windows · 2008-01-022026-09-16 · not cherry-picked

Fundamentals iCompany financials — revenue, earnings, margins — from the newest filings shown, each carried with its date.iAs-reported figures and standard ratios from FMP, as of 2026-07-25. Revenue, net income and free cash flow can toggle annual or quarterly; margin, ROE and debt-to-equity are shown by fiscal year. We report the figures and the trend — no target price and no over/under-valued call. More on /methodology.

$63.7B
market cap
$6.19
EPS (TTM)
40.0
P/E (TTM)
2026-07-30
next earnings
Revenue$13.9B
'20'25
Net income$1.5B
'20'25
Free cash flow$1.8B
'20'25
Net margin · by yr10.7%
'20'25
ROE · by yr6.4%
'20'25
Debt / equity · by yr0.60
'20'25

Fair value — three views iIndependent reference estimates of worth (a cash-flow model, peer multiples, analyst targets), shown as separate views — not a single verdict.

iThree independent estimates of per-share value, each by a different method and each with its own assumptions: a discounted-cash-flow intrinsic value, a peer comparable (the median trailing P/E of 69 sector peers times this company's trailing EPS), and the analyst price-target consensus. They routinely disagree — that gap is the point. We show the three marks and the current price; we do not blend them into a single number or call the stock over- or under-valued. Marks as of the latest capture. More on /methodology.
now $243.78$79.51$396.98
  • DCF (intrinsic)$375.09
  • Peer P/E × EPS · sector median 16.4× · n=69$101.40
  • Analyst target · range $225.00$300.00$289.00
  • Current price · last close 2026-09-16$243.78

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 ~19 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
56%
+0.1%
n=18
Feb
74%
+0.5%
n=19
Mar
74%
+2.2%
n=19
Apr
58%
+3.0%
n=19
May
58%
+0.9%
n=19
Jun
63%
+1.4%
n=19
Jul
74%
+3.1%
n=19
Aug
74%
+1.2%
n=19
Sep
53%
+0.3%
n=19
Oct
56%
+1.8%
n=18
Nov
78%
+2.9%
n=18
Dec
56%
+0.1%
n=18

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$308$1912026-09-02: 1 insider sale, $3.2M — Hudson Scott R2026-08-24: 1 insider sale, $3.2M — Bay Walter D.2026-08-19: 1 insider sale, $900K — Mead Christopher E2026-06-02: 1 insider sale, $618K — CARY RICHARD C2026-03-06: 1 insider sale, $865K — Hudson Scott R2026-03-05: 1 insider sale, $908K — Mead Christopher E2026-03-02: 1 insider sale, $6.3M — GALLAGHER J PATRICK JR2025-12-23: 1 insider sale, $1.0M — Mead Christopher E2025-12-22: 1 insider sale, $1.3M — HOWELL DOUGLAS K2025-12-19: 1 insider sale, $4.0M — Bay Walter D.2025-11-21: 1 insider sale, $313K — Mead Christopher E2025-11-18: 1 insider sale, $1.6M — CARY RICHARD C2025-11-03: 4 insider purchases, $988K — Pesch Michael Robert …2025-09-22: 2 insider sales, $2.4M — HOWELL DOUGLAS K …2025-09-19: 2 insider sales, $1.8M — HOWELL DOUGLAS K …2025-09-09: 1 insider sale, $899K — HOWELL DOUGLAS K2025-09-08: 2 insider sales, $3.8M — Hudson Scott R …2025-08-21: 1 insider sale, $1.2M — CARY RICHARD C2025-08: 1 open-market sale, $1.2M2025-09: 7 open-market sales, $8.9M2025-11: 4 open-market purchases, $988K2025-11: 2 open-market sales, $1.9M2025-12: 3 open-market sales, $6.4M2026-03: 3 open-market sales, $8.1M2026-06: 1 open-market sale, $618K2026-08: 2 open-market sales, $4.1M2026-09: 1 open-market sale, $3.2M↑ buys↓ salesofficer Hudson Scott R — Sale on 2026-09-02, filed 2 days after the tradeofficer Bay Walter D. — Sale on 2026-08-24, filed 2 days after the tradeofficer Mead Christopher E — Sale on 2026-08-19, filed 1 day after the tradeofficer CARY RICHARD C — Sale on 2026-06-02, filed same dayofficer Hudson Scott R — Sale on 2026-03-06, filed 3 days after the tradeofficer Mead Christopher E — Sale on 2026-03-05, filed 4 days after the tradedirector GALLAGHER J PATRICK JR — Sale on 2026-03-02, filed 2 days after the tradeofficer Mead Christopher E — Sale on 2025-12-23, filed 6 days after the tradeofficer HOWELL DOUGLAS K — Sale on 2025-12-22, filed 7 days after the tradeofficer Bay Walter D. — Sale on 2025-12-19, filed 4 days after the tradeofficer Mead Christopher E — Sale on 2025-11-21, filed 4 days after the tradeofficer CARY RICHARD C — Sale on 2025-11-18, filed 2 days after the tradeofficer Pesch Michael Robert — Purchase on 2025-11-03, filed same dayofficer Pesch Michael Robert — Purchase on 2025-11-03, filed same dayofficer Pesch Michael Robert — Purchase on 2025-11-03, filed same dayofficer Pesch Michael Robert — Purchase on 2025-11-03, filed same dayofficer HOWELL DOUGLAS K — Sale on 2025-09-22, filed 1 day after the tradeofficer HOWELL DOUGLAS K — Sale on 2025-09-22, filed 1 day after the tradeofficer HOWELL DOUGLAS K — Sale on 2025-09-19, filed 4 days after the tradeofficer HOWELL DOUGLAS K — Sale on 2025-09-19, filed 4 days after the tradeofficer HOWELL DOUGLAS K — Sale on 2025-09-09, filed 2 days after the tradeofficer Hudson Scott R — Sale on 2025-09-08, filed 1 day after the tradeofficer Hudson Scott R — Sale on 2025-09-08, filed 1 day after the tradeofficer CARY RICHARD C — Sale on 2025-08-21, filed 1 day after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-09-02Hudson Scott RofficerSale12,000 @ $264.13$3.2M−11.7% of holdingnot yet — horizon still opennot yet — horizon still open90,262Form 4 · filed 2 days after the trade
2026-08-24Bay Walter D.officerSale12,000 @ $270.08$3.2M−14.4% of holdingnot yet — horizon still opennot yet — horizon still open71,292Form 4 · filed 2 days after the trade
2026-08-19Mead Christopher EofficerSale3,500 @ $257.02$900K−13.6% of holdingnot yet — horizon still opennot yet — horizon still open22,223Form 4 · filed 1 day after the trade
2026-06-02CARY RICHARD CofficerSale3,000 @ $206.00$618K−5.9% of holding+24.8%not yet — horizon still open47,819Form 4 · filed same day
2026-03-06Hudson Scott RofficerSale3,800 @ $227.57$865K−4.2% of holding−2.9%+0.1%85,920Form 4 · filed 3 days after the trade
2026-03-05Mead Christopher EofficerSale4,000 @ $227.12$908K−17.2% of holding−1.2%+2.5%19,306Form 4 · filed 4 days after the trade
2026-03-02GALLAGHER J PATRICK JRdirectorSale27,450 @ $230.31$6.3M−22.2% of holding−0.3%+2.7%96,455Form 4 · filed 2 days after the trade
2025-12-23Mead Christopher EofficerSale4,000 @ $258.11$1.0M−18.8% of holding−2.0%−18.6%17,327Form 4 · filed 6 days after the trade
2025-12-22HOWELL DOUGLAS KofficerSale5,000 @ $258.05$1.3M−5.0% of holding−2.6%−22.9%95,777Form 4 · filed 7 days after the trade
2025-12-19Bay Walter D.officerSale15,850 @ $255.00$4.0M−16.6% of holding−2.4%−20.6%79,549Form 4 · filed 4 days after the trade
2025-11-21Mead Christopher EofficerSale1,250 @ $250.74$313K−6.7% of holding−1.5%−33.4%17,327Form 4 · filed 4 days after the trade
2025-11-18CARY RICHARD CofficerSale6,000 @ $261.00$1.6M−10.6% of holding−4.5%−32.5%50,668Form 4 · filed 2 days after the trade
2025-11-03Pesch Michael RobertofficerPurchase1,874 @ $246.82$463K+4.9% of holding+0.9%−26.5%40,261Form 4 · filed same day
2025-11-03Pesch Michael RobertofficerPurchase989 @ $247.41$245K+2.5% of holding+0.9%−26.5%41,250Form 4 · filed same day
2025-11-03Pesch Michael RobertofficerPurchase599 @ $248.72$149K+1.5% of holding+0.9%−26.5%41,849Form 4 · filed same day
2025-11-03Pesch Michael RobertofficerPurchase538 @ $245.85$132K+1.4% of holding+0.9%−26.5%38,387Form 4 · filed same day
2025-09-22HOWELL DOUGLAS KofficerSale5,900 @ $299.44$1.8M−5.4% of holding−7.7%−26.0%102,877Form 4 · filed 1 day after the trade
2025-09-22HOWELL DOUGLAS KofficerSale2,100 @ $299.84$630K−2.0% of holding−7.7%−26.0%100,777Form 4 · filed 1 day after the trade
2025-09-19HOWELL DOUGLAS KofficerSale3,400 @ $299.71$1.0M−3.0% of holding−8.0%−26.5%108,777Form 4 · filed 4 days after the trade
2025-09-19HOWELL DOUGLAS KofficerSale2,600 @ $298.69$777K−2.3% of holding−8.0%−26.5%112,177Form 4 · filed 4 days after the trade
2025-09-09HOWELL DOUGLAS KofficerSale3,000 @ $299.78$899K−2.5% of holding−1.0%−33.9%114,777Form 4 · filed 2 days after the trade
2025-09-08Hudson Scott RofficerSale7,600 @ $297.51$2.3M−8.1% of holding+0.2%−33.8%85,920Form 4 · filed 1 day after the trade
2025-09-08Hudson Scott RofficerSale5,255 @ $297.73$1.6M−5.8% of holding+0.2%−33.8%85,920Form 4 · filed 1 day after the trade
2025-08-21CARY RICHARD CofficerSale4,000 @ $306.00$1.2M−6.6% of holding−6.7%−37.5%56,668Form 4 · filed 1 day after the trade
2025-06-18Pesch Michael RobertofficerPurchase59 @ $318.37$19Kownership Δ n/a−8.4%−33.5%59Form 4 · filed 2 days after the trade
2025-05-21Hudson Scott RofficerSale10,500 @ $337.17$3.5M−10.3% of holding−7.1%−40.3%91,175Form 4 · filed 1 day after the trade
2025-05-19Pietrucha Susan EofficerSale13,500 @ $344.13$4.6M−53.1% of holding−8.0%−36.8%11,941Form 4 · filed 1 day after the trade
2025-05-16JOHNSON DAVID SdirectorSale1,000 @ $342.04$342K−2.2% of holding−8.0%−37.9%45,323Form 4 · filed 4 days after the trade
2025-05-07CARY RICHARD CofficerSale12,000 @ $339.51$4.1M−16.9% of holding−9.8%−48.1%59,029Form 4 · filed 2 days after the trade
2025-03-21Hudson Scott RofficerSale7,510 @ $333.59$2.5M−7.7% of holding+6.2%−28.1%90,020Form 4 · filed same day

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.

270 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
2026-09-08GALLAGHER J PATRICK JRdirectorGift49,9880Form 4
2026-09-08Gallagher Patrick MurphyofficerGift49,988148,093Form 4
2026-09-02Hudson Scott RofficerOption exercise12,000102,262Form 4
2026-09-02Hudson Scott RofficerOption exercise12,00012,370Form 4
2026-09-01Miskel Christopher C.directorAward / grant15310,826Form 4
2026-08-19Mead Christopher EofficerOption exercise3,50025,723Form 4
2026-08-19Mead Christopher EofficerOption exercise3,5007,590Form 4
2026-08-16Bloom Mark H.officerWithheld for tax6074,417Form 4
2026-08-16Bloom Mark H.officerOption exercise1,2805,023Form 4
2026-08-16Bloom Mark H.officerOption exercise1,2806,017Form 4
2026-08-05Gallagher Patrick MurphyofficerGift23,80053,262Form 4
2026-07-01Jain VishalofficerOption exercise2,16368,903Form 4
2026-07-01Pesch Michael RobertofficerOption exercise35644,833Form 4
2026-07-01GALLAGHER THOMAS JOSEPHofficerOption exercise352323,743Form 4
2026-07-01Pesch Michael RobertofficerOption exercise3566,135Form 4
2026-07-01GALLAGHER THOMAS JOSEPHofficerOption exercise35213,346Form 4
2026-07-01Jain VishalofficerOption exercise2,1639,726Form 4
2026-06-22HOWELL DOUGLAS KofficerDiscretionary12,954185,954Form 4
2026-06-01JOHNSON DAVID SdirectorAward / grant23747,387Form 4
2026-06-01Miskel Christopher C.directorAward / grant19410,642Form 4
2026-05-26Gallagher Patrick MurphyofficerGift14,69898,105Form 4
2026-05-26GALLAGHER J PATRICK JRdirectorGift14,698109,417Form 4
2026-05-12ROSENTHAL NORMAN LdirectorAward / grant1,11043,327Form 4
2026-05-12JOHNSON DAVID SdirectorAward / grant1,11047,150Form 4
2026-05-12Caplan Deborah HdirectorAward / grant1,1102,650Form 4
2026-05-12Coldman David JohndirectorAward / grant1,11016,344Form 4
2026-05-12Clarke Teresa HillarydirectorAward / grant1,1105,567Form 4
2026-05-12NICOLETTI RALPH JdirectorAward / grant1,11018,414Form 4
2026-05-12Miskel Christopher C.directorAward / grant1,11010,448Form 4
2026-05-12Harries Richard de Winton WilkindirectorAward / grant1,1102,413Form 4
2026-03-31GALLAGHER J PATRICK JRdirectorOption exercise5,346126,331Form 4
2026-03-31GALLAGHER J PATRICK JRdirectorWithheld for tax2,369123,962Form 4
2026-03-31Bay Walter D.officerOption exercise1,41583,919Form 4
2026-03-31Bay Walter D.officerWithheld for tax62783,292Form 4
2026-03-31CARY RICHARD CofficerOption exercise47250,958Form 4
2026-03-31CARY RICHARD CofficerWithheld for tax13950,819Form 4
2026-03-31HOWELL DOUGLAS KofficerWithheld for tax76106,710Form 4
2026-03-31GALLAGHER THOMAS JOSEPHofficerOption exercise76323,467Form 4
2026-03-31GALLAGHER THOMAS JOSEPHofficerWithheld for tax76323,391Form 4
2026-03-31HOWELL DOUGLAS KofficerOption exercise76106,786Form 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 iStock trades disclosed by members of Congress for this company, by the date they were filed.iDisclosures shown as facts. A purchase “cluster” (≥2 members of Congress filing a buy within 90 days) has historically preceded modestly higher forward returns — and it persisted out-of-sample, though it roughly halved after 2021 (see below). A descriptive historical tendency, not a signal to trade and not used in our forecast. See /methodology.

As of 2026-09-16 · point-in-time by filed date

Purchase clusters · 2015–2021 (dev)+45 bp/mo vs baseline · up-rate 59.3% vs 57.3% · n=31,607 cluster ticker-weeks
Purchase clusters · 2022–2026 (out-of-sample)+32 bp/mo vs baseline · up-rate 54.0% vs 53.3% · n=27,793

A cluster = ≥2 members of Congress filing a purchase within 90 days. The historical tilt persisted after 2021 but roughly halved (+45 → +32 bp/mo forward 1-month vs the S&P 500 weekly-grid baseline). Descriptive historical tendency — not a signal to trade, and not used in our forecast (audition-log 2026-07-27, recomputed 2026-09-08).

'23 Q'24 Q'24 Q'24 Q'25 Q'25 Q'25 Q'26 Q'26 Q'26 Qpurchases ▲ / sales ▼ ($ vol)
MemberChamberTypeFiledTradedSize
Alan ArmstrongSenatepurchase2026-07-212026-03-27$1–15K
Ro KhannaHousepurchase2026-07-062026-06-02$1–15K
Ro KhannaHousepurchase2026-07-062026-06-16$1–15K
Ro KhannaHousepurchase2026-07-062026-06-30$1–15K
Michael T. McCaulHousepurchase2026-06-102026-05-08$1–15K
Michael T. McCaulHousepurchase2026-06-102026-05-20$15–50K
Ro KhannaHousesale2026-06-092026-05-15$1–15K
Ro KhannaHousesale2026-06-092026-05-27$15–50K
Ro KhannaHousesale2026-06-092026-05-01$15–50K
Michael T. McCaulHousepurchase2026-05-042026-04-06$1–15K
Michael T. McCaulHousepurchase2026-05-042026-04-07$1–15K
Ro KhannaHousepurchase2026-04-072026-03-10$1–15K
Ro KhannaHousepurchase2026-04-072026-03-23$15–50K
Ro KhannaHousepurchase2026-04-072026-03-30$1–15K

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