Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
1,261 institutional managers reported holding AZO for the quarter ended Mar 31, 2026. Together they hold about 81% of shares outstanding; the top 10 hold 36%. 97 opened new positions; 147 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 1.79M | 10.57% | $6.05B | unchanged | ≤2013 |
| BlackRock | 1.24M | 7.33% | $4.20B | trimmed -2.4% | ≤2013 |
| State Street | 702.9k | 4.14% | $2.37B | trimmed -1.8% | ≤2013 |
| Morgan Stanley | 446.1k | 2.63% | $1.51B | trimmed -9.5% | ≤2013 |
| Geode Capital | 414.7k | 2.44% | $1.40B | added +1.3% | ≤2013 |
| T. Rowe Price | 391.0k | 2.30% | $1.32B | added +1% | ≤2013 |
| Royal Bank OF Canada | 325.5k | 1.92% | $1.10B | trimmed -6.5% | ≤2013 |
| FMR (Fidelity) | 285.7k | 1.68% | $964.5M | added +3.1% | ≤2013 |
| First Manhattan CO. LLC. | 261.8k | 1.54% | $883.8M | unchanged | ≤2013 |
| Fiera Capital CORP | 261.0k | 1.54% | $881.2M | trimmed -3.5% | 2013 Q4 |
| PineStone Asset Management INC. (focused) | 256.8k | 1.51% | $867.0M | trimmed -4.6% | 2022 Q4 |
| DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 199.3k | 1.17% | $672.6M | trimmed -9.6% | 2016 Q4 |
| Parnassus Investments | 195.7k | 1.15% | $660.5M | trimmed -7.4% | 2023 Q1 |
| AllianceBernstein | 193.6k | 1.14% | $653.4M | added +14.2% | ≤2013 |
| Mitsubishi UFJ Asset Management CO., LTD. | 190.2k | 1.12% | $642.0M | trimmed -2.2% | ≤2013 |
| Northern Trust | 168.8k | 0.99% | $569.9M | trimmed -6.6% | ≤2013 |
| Marshfield Associates (focused) | 165.0k | 0.97% | $557.1M | trimmed -5.7% | 2017 Q2 |
| Boston Partners | 136.3k | 0.80% | $460.2M | trimmed -42.5% | 2019 Q1 |
| Barclays PLC | 125.9k | 0.74% | $424.9M | added +5.2% | ≤2013 |
| Brown Advisory INC | 124.2k | 0.73% | $419.3M | trimmed -3.1% | 2015 Q3 |
| Charles Schwab Investment Management | 119.8k | 0.71% | $404.5M | added +2.1% | ≤2013 |
| Arrowstreet Capital | 119.8k | 0.71% | $404.4M | added +1.6% | 2018 Q2 |
| Amundi | 112.8k | 0.67% | $380.7M | added +24.3% | 2017 Q4 |
| Capital Group (American Funds) | 112.8k | 0.67% | $380.7M | added +136.3% | 2024 Q2 |
| Legal & General Group PLC | 109.6k | 0.65% | $370.0M | unchanged | ≤2013 |
| BNY Mellon | 108.5k | 0.64% | $366.3M | trimmed -1.7% | ≤2013 |
| Invesco | 106.5k | 0.63% | $359.4M | trimmed -4.6% | ≤2013 |
| Schroder Investment Management Group | 105.3k | 0.62% | $355.5M | added +4.7% | ≤2013 |
| Pacer Advisors, INC. | 101.9k | 0.60% | $343.9M | added +4743.8% | 2015 Q4 |
| Goldman Sachs | 101.4k | 0.60% | $342.3M | trimmed -15.1% | ≤2013 |
| Victory Capital Management INC | 101.1k | 0.60% | $341.4M | added +12.7% | 2014 Q4 |
| Vontobel Holding LTD. | 100.5k | 0.59% | $339.3M | added +3.9% | 2020 Q4 |
| BLS Capital Fondsmaeglerselskab A/S (focused) | 87.7k | 0.52% | $295.9M | added +19.5% | 2020 Q4 |
| Bank OF America CORP /DE/ | 87.4k | 0.52% | $295.2M | trimmed -31.3% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 82.1k | 0.48% | $277.2M | trimmed -2.1% | 2021 Q4 |
| Nuveen | 81.9k | 0.48% | $276.5M | trimmed -48.9% | 2018 Q1 |
| Baillie Gifford | 80.3k | 0.47% | $271.0M | trimmed -6.8% | 2022 Q2 |
| Deutsche Bank AG\ | 66.9k | 0.40% | $226.0M | trimmed -22% | ≤2013 |
| UBS | 66.5k | 0.39% | $224.5M | trimmed -67% | ≤2013 |
| Envestnet Asset Management INC | 64.1k | 0.38% | $216.5M | added +1.6% | ≤2013 |
| Russell Investments Group, LTD. | 63.0k | 0.37% | $212.6M | trimmed -11.5% | 2016 Q4 |
| Holocene Advisors | 61.9k | 0.36% | $209.1M | trimmed -20.6% | 2021 Q4 |
| BNP Paribas Financial Markets | 57.1k | 0.34% | $192.8M | added +6.6% | ≤2013 |
| Local Pensions Partnership Investment LTD (focused) | 55.9k | 0.33% | $188.7M | trimmed -3.6% | 2024 Q4 |
| Wellington Management | 55.9k | 0.33% | $188.5M | trimmed -7.1% | 2018 Q4 |
| Raymond James Financial INC | 55.0k | 0.32% | $185.7M | trimmed -4.7% | 2015 Q1 |
| Two Sigma | 54.9k | 0.32% | $185.2M | added +65.9% | 2018 Q4 |
| Ensign Peak Advisors, INC | 54.6k | 0.32% | $184.2M | added +5.5% | 2019 Q4 |
| Dimensional Fund Advisors | 54.1k | 0.32% | $182.8M | added +2.5% | ≤2013 |
| Bank OF Montreal /CAN/ | 54.0k | 0.32% | $182.3M | trimmed -4.6% | ≤2013 |
Largest 50 of 1,261 shown; the full ranked, searchable register is at boothcheck.com/holders/AZO. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.