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Insider Trading Intelligence
Pricing
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WB

Walter D. Bay

AJG
GENERAL COUNSEL · ARTHUR J. GALLAGHER & CO. · CIK 0001410235
FILING MIX · LIFETIME48%/52%
BUYS
54
SELLS
58
TOTAL VALUE
$60.53M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
83,919
AVG SELL PX
$240.67
TRADE KIND
SHOWING 112 / 112
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
15 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Walter D. Bay, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d15+60.00%+0.23%+0.22%+0.01%-1.15%—
14d15+53.33%+0.15%-0.35%+0.51%-0.37%—
30d15+6.67%+2.30%+0.97%+1.33%-0.75%—
60d15+40.00%+1.28%+0.61%+0.67%-0.71%—
90d15+20.00%+4.75%+0.94%+3.82%+5.58%—
180d15+13.33%+9.39%+9.63%-0.24%+2.27%—
1y15(1 pending)+7.14%+22.47%+13.66%+8.81%+16.42%—
2y15(3 pending)+58.33%+9.07%+36.21%-27.14%-56.80%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
AJG · 83,919.092 shares · as of Mar 31, 2026
031,19662,39293,589124,785202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 54 buys / 58 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
1,415.092——3,994.734Mar 31, 2026Apr 1, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
627$215.95$135.4K83,292.092Mar 31, 2026Apr 1, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
1,415.092$215.95$305.6K83,919.092Mar 31, 2026Apr 1, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
2,411$207.93$501.3K75,414Mar 15, 2026Mar 17, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
7,090——82,504Mar 15, 2026Mar 17, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,090——0Mar 15, 2026Mar 17, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
7,090——7,090Mar 15, 2026Mar 17, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
1,982.292$227.01$450.0K5,399.1Mar 4, 2026Mar 6, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
16,952——16,952Mar 1, 2026Mar 3, 2026 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
15,850——0Dec 19, 2025Dec 23, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALEGRANT
Gift
1,724——77,825Dec 19, 2025Dec 23, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
15,850$79.59$1.26M95,399Dec 19, 2025Dec 23, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
15,850$255.00$4.04M79,549Dec 19, 2025Dec 23, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
78.755——3,395.152Mar 31, 2025Apr 2, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
78.755$345.24$27.2K79,470.245Mar 31, 2025Apr 2, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
78.755——79,549Mar 31, 2025Apr 2, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
7,180——82,657Mar 15, 2025Mar 18, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,108$325.24$1.01M79,549Mar 15, 2025Mar 18, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
7,180——7,180Mar 15, 2025Mar 18, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,180——0Mar 15, 2025Mar 18, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
2,250——0Mar 12, 2025Mar 14, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
2,250——76,422Mar 12, 2025Mar 14, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
945$325.75$307.8K75,477Mar 12, 2025Mar 14, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
1,400.866$321.23$450.0K3,470.264Mar 10, 2025Mar 11, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
11,350——11,350Mar 1, 2025Mar 5, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
10,000$326.62$3.27M74,172Feb 13, 2025Feb 14, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
40,612.841$316.30$12.85M84,172Feb 5, 2025Feb 7, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
94,731.841——124,784.841Feb 5, 2025Feb 7, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
94,731.841——2,069.398Feb 5, 2025Feb 7, 2025 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
4,942.4$283.74$1.40M4,942.4Dec 10, 2024Dec 11, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
6,335$284.06$1.80M30,053Jul 30, 2024Jul 30, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
8,303$262.74$2.18M36,388Jun 18, 2024Jun 18, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
9,675.47$261.16$2.53M0Jun 17, 2024Jun 18, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
800$70.74$56.6K45,491May 20, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
800——0May 20, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
800$257.24$205.8K44,691May 20, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,863$256.27$990.0K49,545May 17, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
8,717$70.74$616.6K53,408May 17, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
4,468$257.53$1.15M45,077May 17, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
8,717——800May 17, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
386$258.11$99.6K44,691May 17, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,283——9,517May 16, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,576$253.00$1.92M51,974May 16, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,283$256.04$1.86M44,691May 16, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
7,283$70.74$515.2K59,550May 16, 2024May 20, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
8,914——2,250Mar 16, 2024Mar 19, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
8,914——56,125Mar 16, 2024Mar 19, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
8,914——11,164Mar 16, 2024Mar 19, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,858$253.17$976.7K52,267Mar 16, 2024Mar 19, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
980$254.91$249.8K47,211Mar 14, 2024Mar 18, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,500——2,250Mar 14, 2024Mar 18, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
3,500——48,191Mar 14, 2024Mar 18, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
1,850.86$243.13$450.0K95,742.999Mar 4, 2024Mar 5, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
10,884——10,884Mar 1, 2024Mar 5, 2024 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
21,800——0Sep 15, 2023Sep 19, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
21,800$56.86$1.24M66,491Sep 15, 2023Sep 19, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
21,800$232.00$5.06M44,691Sep 15, 2023Sep 19, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
1,773$177.09$314.0K44,691Mar 15, 2023Mar 17, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
4,000——46,464Mar 15, 2023Mar 17, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
9,452——9,452Mar 15, 2023Mar 17, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
4,000——5,750Mar 15, 2023Mar 17, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
9,800——19,550Mar 12, 2023Mar 14, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
9,800——9,750Mar 12, 2023Mar 14, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
9,800——45,994Mar 12, 2023Mar 14, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,530$182.76$645.1K42,464Mar 12, 2023Mar 14, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
3,630$185.95$675.0K92,933.074Mar 10, 2023Mar 14, 2023 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
5,100$43.71$222.9K38,217Aug 10, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
5,100——0Aug 10, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
5,100$185.00$943.5K33,117Aug 10, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
5,100$43.71$222.9K43,317Aug 9, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
5,100$181.00$923.1K38,217Aug 9, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
5,100——5,100Aug 9, 2022Aug 11, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
2,015$162.67$327.8K38,215Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
7,500$43.71$327.8K43,180Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
2,843.4$158.26$450.0K88,245.259Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,500$162.00$1.22M35,680Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
7,500——10,200Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
4,550——9,750Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
4,550——40,230Mar 16, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
11,405——11,405Mar 15, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
8,450——14,300Mar 14, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
8,450——38,499Mar 14, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
8,450——22,750Mar 14, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
2,819$154.74$436.2K35,680Mar 14, 2022Mar 16, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
525.67$153.73$80.8K8,736.87Feb 23, 2022Feb 25, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
2,316$157.94$365.8K8,211.2Jan 31, 2022Feb 2, 2022 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
1,139.3$164.40$187.3K5,893.4Dec 17, 2021Dec 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
1,873.5$166.62$312.2K4,754.1Dec 15, 2021Dec 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
3,531.6$127.42$450.0K83,992.7Mar 17, 2021Mar 18, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
5,350——13,850Mar 17, 2021Mar 18, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
5,350——32,294Mar 17, 2021Mar 18, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
2,245$128.43$288.3K30,049Mar 17, 2021Mar 18, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
24,500——24,500Mar 16, 2021Mar 18, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
9,700——19,200Mar 15, 2021Mar 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
9,700——30,122Mar 15, 2021Mar 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,178$127.21$404.3K26,944Mar 15, 2021Mar 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
9,700——28,900Mar 15, 2021Mar 17, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
2,158.3$116.33$251.1K2,880.6Feb 11, 2021Feb 12, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
722.3$117.68$85.0K722.3Feb 8, 2021Feb 10, 2021 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
12,600——0Dec 10, 2020Dec 11, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
12,600$119.23$1.50M20,422Dec 10, 2020Dec 11, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
12,600$46.17$581.7K33,022Dec 10, 2020Dec 11, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
9,374——24,388Mar 16, 2020Mar 17, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
9,374——28,574Mar 16, 2020Mar 17, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,966$79.85$316.7K20,422Mar 16, 2020Mar 17, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
9,374——19,200Mar 16, 2020Mar 17, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
4,636.1$86.28$400.0K79,269.8Mar 13, 2020Mar 17, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
17,630——17,630Mar 12, 2020Mar 16, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASEGRANT
Stock grant
2,250——19,200Mar 12, 2020Mar 16, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
3,050$94.98$289.7K16,950Mar 11, 2020Mar 13, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
SALE
General Counsel
1,280$94.98$121.6K15,014Mar 11, 2020Mar 13, 2020 ↗View →
AJG
ARTHUR J. GALLAGHER & CO.
PURCHASE
General Counsel
3,050$94.98$289.7K16,294Mar 11, 2020Mar 13, 2020 ↗View →
Other insiders · AJG
Loading peer insiders…
About this filer
CIK 0001410235
ROLE
General Counsel
PRIMARY
AJG
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001410235DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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