Security Snapshot

Arthur J. Gallagher & Co. - Common Stock (AJG) Institutional Ownership

CUSIP: 363576109

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

1,289

Shares (Excl. Options)

238.47MFull value: 238,473,614 · shares · 30 Jun 2026

Price

$229.57

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Security type / class
Equity / Common Stock
Symbol
AJG on NYSE
All holders as of 30 Jun 2026
Q2 2026
Total 13F shares
238,473,614
Latest holder snapshot 5 signals
Total 13F value
$54,686,369,366
Portfolio coverage rank
0.03%
Share change
+8,404,329
Value change
+$1,991,027,495
Number of holders
1,289
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
255,394,940
SEC-reported price per share
$228.11
Insider filing price
$228.11
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • AJG - Arthur J. Gallagher & Co. - Common Stock is tracked under CUSIP 363576109.
  • 1289 institutions reported positions in Q2 2026.
  • 5 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 1,246 to 1,289 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $49.62BFull value: $49,615,751,724 · USD · 31 Mar 2026
    to
    $54.69BFull value: $54,686,369,366 · USD · 30 Jun 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 1289 institutions filings for Q2 2026.

Open SEC evidence

Security key

363576109

13F reference period

Q2 2026

13F holders

1,289

13D/G owners

5

CIK / CUSIP context first

Open Q2 2026 holders AJG full holder history Arthur J. Gallagher & Co. SEC filings Arthur J. Gallagher & Co. company facts Arthur J. Gallagher & Co. insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
5
Security
AJG
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD CAPITAL MANAGEMENT LLC 7.5% $4,167,833,033 19,243,850 Vanguard Capital Management 31 Mar 2026
FMR LLC 7.2% $4,458,529,809 18,602,786 FMR LLC 30 Jun 2026
BlackRock, Inc. 6.9% $5,674,337,959 17,725,659 BlackRock, Inc. 30 Jun 2025
JPMORGAN CHASE & CO 5.5% -29% $3,250,889,346 -$1,376,097,906 14,160,776 -30% JPMORGAN CHASE & CO. 30 Jun 2026
Capital World Investors 5% 0% $3,060,525,263 -$43,630,246 12,769,747 -1.4% Capital World Investors 30 Jun 2026
As of 30 Jun 2026, 1,289 institutional investors reported holding
238.47MFull value: 238,473,614 · shares · 30 Jun 2026
shares of Arthur J. Gallagher & Co. - Common Stock (AJG). This represents 93% of the company’s total
255.39MFull value: 255,394,940 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
65%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 7.8% 19,822,870 +2.7% 0.07% $4,550,736,475
FMR LLC 7.3% 18,645,620 +28% 0.19% $4,280,475,069
VANGUARD CAPITAL MANAGEMENT LLC 6.6% 16,777,183 +0.46% 0.08% $3,851,537,901
JPMORGAN CHASE & CO 5.6% 14,356,764 -27% 0.19% $3,260,708,906
Capital World Investors 4.9% 12,511,991 -9.4% 0.34% $2,872,235,049
VANGUARD PORTFOLIO MANAGEMENT LLC 4.9% 12,454,725 +0.29% 0.13% $2,859,231,218
STATE STREET CORP 4.4% 11,303,790 +3% 0.08% $2,595,011,070
Dodge & Cox 3.7% 9,363,634 +27% 1.1% $2,149,609,457
NORGES BANK 2.6% 6,733,790 0.15% $1,545,876,170
GEODE CAPITAL MANAGEMENT, LLC 2.5% 6,298,870 +0.88% 0.08% $1,446,658,088
EAGLE CAPITAL MANAGEMENT LLC 1.9% 4,890,612 +83% 3.4% $1,122,737,692
PRINCIPAL FINANCIAL GROUP INC 1.4% 3,494,796 +7.8% 0.39% $802,311,830
GOLDMAN SACHS GROUP INC 1.1% 2,818,022 +44% 0.07% $646,933,249
MORGAN STANLEY 1% 2,591,858 -36% 0.03% $595,013,335
Capital Research Global Investors 1% 2,585,853 -13% 0.08% $593,625,531
WCM INVESTMENT MANAGEMENT, LLC 0.95% 2,425,562 +2.7% 1% $550,893,700
GTCR LLC 0.93% 2,373,773 0% 14% $544,947,068
FRANKLIN RESOURCES INC 0.87% 2,219,141 +14% 0.11% $509,448,297
NORTHERN TRUST CORP 0.86% 2,204,733 -1.1% 0.06% $506,140,556
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.84% 2,156,506 +2.2% 0.07% $495,071,015
Capital International Investors 0.78% 2,002,580 -23% 0.1% $459,536,264
Jupiter Topco LLC 0.76% 1,940,663 0% 0.18% $445,367,104
MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.75% 1,917,615 +494% 0.35% $440,226,807
Invesco Ltd. 0.69% 1,750,848 +2% 0.03% $401,942,208
BANK OF AMERICA CORP /DE/ 0.6% 1,540,997 -17% 0.02% $353,766,791

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 6,216,871 $1,419,640,060 +$40,794,803 $228.11 378
2026 Q2 238,473,614 $54,686,369,366 +$1,991,027,495 $229.57 1,289
2026 Q1 229,212,815 $49,615,751,724 -$1,280,112,465 $216.58 1,246
2025 Q4 234,104,494 $60,539,925,827 +$2,062,403,776 $258.79 1,293
2025 Q3 224,973,489 $69,601,142,490 -$1,040,580,353 $309.74 1,328
2025 Q2 227,791,728 $72,839,908,420 +$1,101,453,811 $320.12 1,360
2025 Q1 224,021,472 $77,272,419,154 -$1,774,697,720 $345.24 1,341
2024 Q4 232,457,193 $65,987,297,671 +$12,131,406,733 $283.85 1,309
2024 Q3 187,173,127 $52,679,414,541 -$530,726,999 $281.37 1,190
2024 Q2 189,018,822 $49,023,449,437 +$906,162,686 $259.31 1,142
2024 Q1 185,687,022 $46,399,473,179 +$33,618,211 $250.04 1,119
2023 Q4 185,452,704 $41,694,286,696 -$110,939,205 $224.88 1,077
2023 Q3 185,257,677 $42,216,774,694 +$536,912,503 $227.93 991
2023 Q2 181,971,146 $39,901,956,907 +$247,732,208 $219.57 967
2023 Q1 181,063,439 $34,634,801,609 +$63,909,468 $191.31 935
2022 Q4 181,615,768 $34,239,959,080 +$19,660,891 $188.54 909
2022 Q3 182,532,989 $31,269,696,433 +$511,820,151 $171.22 849
2022 Q2 178,431,447 $29,086,247,637 +$228,103,920 $163.04 811
2022 Q1 177,797,814 $31,016,015,563 +$81,171,001 $174.60 804
2021 Q4 177,263,332 $30,044,423,551 +$16,714,205 $169.67 842
2021 Q3 177,056,860 $26,315,528,149 +$190,241,113 $148.65 756
2021 Q2 175,727,054 $24,590,770,903 +$1,450,848,130 $140.08 766
2021 Q1 165,350,403 $20,613,688,189 +$229,737,382 $124.77 719
2020 Q4 163,592,286 $20,212,488,290 +$476,727,934 $123.71 712
2020 Q3 159,865,142 $16,868,703,845 +$63,972,121 $105.58 683
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