Ticker · CUSIP 363576109

AJG

GALLAGHER ARTHUR J & CO
Financial Services·Insurance Brokers
···Share
Holders (tracked)
25
Combined shares
15,248,446
Combined value
$3.80B
Last close
$224.08
Quarter
2025Q4
Tracked holders · last 8 quarters
+8 vs previous quarter over the last 8.
25132024Q12025Q4
Price is -10.1% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

30 events
  1. AQR Capital Management added2026-02-17
    +1,134 shares · 2025Q4
    13F
  2. Ken Griffin (Citadel Advisors) added2026-02-17
    +512,742 shares · 2025Q4
    13F
  3. D.E. Shaw & Co. added2026-02-17
    +139,108 shares · 2025Q4
    13F
  4. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +2,900 shares · 2025Q4
    13F
  5. Andreas Halvorsen (Viking Global) opened position2026-02-17
    +1,040,977 shares · 2025Q4
    13F
  6. Two Sigma Investments opened position2026-02-17
    +1,604 shares · 2025Q4
    13F
  7. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −172,038 shares · 2025Q4
    13F
  8. Steve Cohen (Point72) opened position2026-02-17
    +69,387 shares · 2025Q4
    13F
  9. T. Rowe Price added2026-02-17
    +171,278 shares · 2025Q4
    13F
  10. Wellington Management trimmed2026-02-17
    −304,824 shares · 2025Q4
    13F
  11. Ray Dalio (Bridgewater Associates) exited2026-02-13
    −39,190 shares · 2025Q4
    13F
  12. Dodge & Cox opened position2026-02-13
    +880,585 shares · 2025Q4
    13F
  13. John Rogers (Ariel Investments) added2026-02-13
    +1,712 shares · 2025Q4
    13F
  14. Sands Capital Management trimmed2026-02-13
    −849,815 shares · 2025Q4
    13F
  15. Renaissance Technologies trimmed2026-02-12
    −396,180 shares · 2025Q4
    13F
  16. Norges Bank (Norway SWF) opened position2026-02-10
    +7,438,704 shares · 2025Q4
    13F
  17. Ken Fisher (Fisher Asset Mgmt) added2026-02-09
    +632 shares · 2025Q4
    13F
  18. Mario Gabelli (GAMCO) trimmed2026-02-05
    −24,261 shares · 2025Q4
    13F
  19. Baillie Gifford & Co trimmed2026-01-23
    −43,625 shares · 2025Q4
    13F
  20. Two Sigma Investments exited2025-11-14
    −2,700 shares · 2025Q3
    13F
  21. D.E. Shaw & Co. opened position2025-11-14
    +34,390 shares · 2025Q3
    13F
  22. AQR Capital Management added2025-11-14
    +12,161 shares · 2025Q3
    13F
  23. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −212,992 shares · 2025Q3
    13F
  24. Andreas Halvorsen (Viking Global) exited2025-11-14
    −725,795 shares · 2025Q3
    13F
  25. T. Rowe Price added2025-11-14
    +807 shares · 2025Q3
    13F
  26. Wellington Management added2025-11-14
    +395,304 shares · 2025Q3
    13F
  27. John Rogers (Ariel Investments) opened position2025-11-14
    +13,645 shares · 2025Q3
    13F
  28. Ray Dalio (Bridgewater Associates) opened position2025-11-13
    +39,190 shares · 2025Q3
    13F
  29. Sands Capital Management trimmed2025-11-13
    −27,179 shares · 2025Q3
    13F
  30. Norges Bank (Norway SWF) exited2025-11-13
    −4,798,919 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
View full insider history for AJG →
Follow-the-investor returns
If you'd copied each holder of AJG…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Baillie Gifford & Co2017Q4$71.60+212.9%$193.9M
T. Rowe Price2016Q1$74.07+202.5%$127.2M
Andreas Halvorsen (Viking Global)2018Q1$158.96+41.0%$233.3M
AQR Capital Management2016Q1$175.93+27.4%$33.1M
Two Sigma Investments2016Q1$203.71+10.0%$359K
Ken Fisher (Fisher Asset Mgmt)2021Q4$221.54+1.1%$350K
Steve Cohen (Point72)2016Q1$226.20-0.9%$359K
Steve Cohen (Point72)2016Q1$226.20-0.9%$359K
Steve Cohen (Point72)2016Q1$226.20-0.9%$359K
Dodge & Cox2025Q4$258.79-13.4%$197.3M
Ken Griffin (Citadel Advisors)2016Q1$263.43-14.9%$14.6M
Ken Griffin (Citadel Advisors)2016Q1$263.43-14.9%$14.6M
Ken Griffin (Citadel Advisors)2016Q1$263.43-14.9%$14.6M
D.E. Shaw & Co.2016Q1$263.49-15.0%$38.9M
Renaissance Technologies2016Q1$264.87-15.4%$968K
Wellington Management2016Q1$267.33-16.2%$664.6M
Izzy Englander (Millennium Mgmt)2016Q1$288.98-22.5%$4.2M
Izzy Englander (Millennium Mgmt)2016Q1$288.98-22.5%$4.2M
Izzy Englander (Millennium Mgmt)2016Q1$288.98-22.5%$4.2M
Paul Tudor Jones (Tudor Investment)2016Q1$302.37-25.9%$179K
Paul Tudor Jones (Tudor Investment)2016Q1$302.37-25.9%$179K
John Rogers (Ariel Investments)2025Q3$304.06-26.3%$3.4M
Mario Gabelli (GAMCO)2024Q3$312.32-28.3%$284K
Sands Capital Management2025Q1$324.66-31.0%$54.7M
Norges Bank (Norway SWF)2016Q1$13504.89-98.3%$1.67B

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions6
Added to6
Trimmed6
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$1.34T
2022Q2
16
$1.31T
2022Q3
16
$1.31B
2022Q4
17
$6.38B
2023Q1
16
$6.37B
2023Q2
15
$6.77B
2023Q3
13
$6.40B
2023Q4
12
$5.95B
2024Q1
13
$6.78B
2024Q2
12
$7.09B
2024Q3
16
$2.61B
2024Q4
19
$3.59B
2025Q1
15
$2.06B
2025Q2
18
$3.70B
2025Q3
17
$1.97B
2025Q4
25
$3.80B
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2026-03-08Kelly Louise MorrisonSell$1K – $15KPDF ↗
2026-03-08Kelly Louise MorrisonSell$1K – $15KPDF ↗
2026-02-10Gilbert CisnerosSell$1K – $15KPDF ↗
2025-12-19Gilbert CisnerosBuy$1K – $15KPDF ↗
2025-12-18Julie JohnsonSell$1K – $15KPDF ↗
2025-11-13Julie JohnsonSell (P)$1K – $15KPDF ↗
2025-09-23Valerie HoyleSell$1K – $15KPDF ↗
2025-08-14Julie JohnsonSell (P)$1K – $15KPDF ↗
2025-08-04Lisa McClainSell$1K – $15KPDF ↗
2025-07-29Julia LetlowSell$1K – $15KPDF ↗
2024-12-11Lisa McClainBuy$1K – $15KPDF ↗
2024-10-29Valerie HoyleBuy$1K – $15KPDF ↗

Who owns AJG

25 super-investors · 2025Q4
Tracked stake
15.25M
shares
Combined value
$3.80B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New9Added8Trim8
#ManagerSharesValue
1Norges Bank
Norway SWF
7.44M$1.93B
2Wellington Management2.97M$768M
3Andreas Halvorsen
Viking Global
1.04M$269M
4Dodge & Cox880.6K$228M
5Baillie Gifford & Co865.3K$224M
6Ken Griffin
Citadel Advisors
624.0K$161M
7Sands Capital Management244.3K$63M
8D.E. Shaw & Co.173.5K$45M
9AQR Capital Management147.8K$38M
10Steve Cohen
Point72
69.4K$18M
11Ken Griffin
Citadel Advisors
65.2K$17M
12Ken Griffin
Citadel Advisors
57.2K$15M
13Izzy Englander
Millennium Mgmt
26.9K$7M
14Izzy Englander
Millennium Mgmt
23.8K$6M
15Izzy Englander
Millennium Mgmt
18.7K$5M
16John Rogers
Ariel Investments
15.4K$4M
17Steve Cohen
Point72
9.9K$3M
18Renaissance Technologies4.3K$1M
19Paul Tudor Jones
Tudor Investment
2.1K$543K
20Two Sigma Investments1.6K$415K
21Steve Cohen
Point72
1.6K$414K
22Ken Fisher
Fisher Asset Mgmt
1.6K$405K
23Mario Gabelli
GAMCO
1.3K$328K
24Paul Tudor Jones
Tudor Investment
800$207K
25T. Rowe Price567.7K$147K

Recent moves

20 transactions
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