Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
290 institutional managers reported holding JHX for the quarter ended Mar 31, 2026. Together they hold about 61% of shares outstanding; the top 10 hold 37%. 60 opened new positions; 55 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Wellington Management | 52.80M | 12.22% | $1.00B | added +0.7% | 2025 Q1 |
| FMR (Fidelity) | 31.25M | 7.23% | $592.0M | added +181.9% | 2018 Q3 |
| D1 Capital Partners L.p. (focused) | 28.30M | 6.55% | $536.0M | added +16% | 2025 Q3 |
| MFS Investment Management | 11.61M | 2.69% | $219.8M | trimmed -8.1% | 2025 Q1 |
| Alyeska Investment Group | 7.78M | 1.80% | $147.4M | added +50.7% | 2025 Q2 |
| Point72 | 6.28M | 1.45% | $118.9M | trimmed -14.1% | 2025 Q2 |
| Hill City Capital, LP (focused) | 5.62M | 1.30% | $106.5M | added +9.8% | 2025 Q3 |
| BlackRock | 5.62M | 1.30% | $106.4M | added +31.2% | 2020 Q3 |
| Phoenix Financial LTD. | 5.45M | 1.26% | $103.2M | trimmed -1.2% | 2025 Q3 |
| Slate Path Capital LP (focused) | 5.36M | 1.24% | $101.6M | unchanged | 2025 Q3 |
| Citadel Advisors | 4.94M | 1.14% | $93.6M | trimmed -35% | 2019 Q4 |
| Jacobs Levy Equity Management, INC | 4.13M | 0.95% | $78.2M | added +10.5% | 2025 Q4 |
| Renaissance Technologies | 3.84M | 0.89% | $72.7M | added +48.5% | 2025 Q4 |
| Adage Capital Partners GP, L.l.c. | 3.62M | 0.84% | $68.6M | added +69.3% | 2025 Q3 |
| Millennium Management | 3.37M | 0.78% | $63.9M | trimmed -5.2% | 2021 Q3 |
| Schonfeld Strategic Advisors | 3.37M | 0.78% | $63.8M | added +229.3% | 2025 Q2 |
| Rdst Capital LLC (focused) | 3.24M | 0.75% | $61.3M | added +20.2% | 2025 Q4 |
| Capital Group (American Funds) | 3.11M | 0.72% | $59.0M | unchanged | 2025 Q3 |
| Barclays PLC | 2.87M | 0.67% | $54.4M | added +807.3% | 2025 Q1 |
| UBS | 2.64M | 0.61% | $50.0M | added +121.7% | 2013 Q3 |
| Morgan Stanley | 2.51M | 0.58% | $47.6M | trimmed -36% | 2013 Q4 |
| Holocene Advisors | 2.32M | 0.54% | $44.0M | added +2251% | 2025 Q1 |
| Citigroup INC | 2.16M | 0.50% | $40.9M | added +1812.7% | ≤2013 |
| Stephens Investment Management Group LLC | 2.12M | 0.49% | $40.1M | unchanged | 2025 Q3 |
| ACK Asset Management LLC (focused) | 2.10M | 0.49% | $39.8M | unchanged | 2025 Q3 |
| Marshall Wace | 2.05M | 0.47% | $38.8M | unchanged | 2024 Q4 |
| SIH Partners, Lllp | 2.00M | 0.46% | $37.9M | added +471.6% | 2025 Q4 |
| Merewether Investment Management, LP | 1.96M | 0.45% | $37.1M | added +123.3% | 2025 Q4 |
| TimesSquare Capital Management, LLC | 1.92M | 0.44% | $36.4M | trimmed -4.2% | 2025 Q2 |
| Goldman Sachs | 1.86M | 0.43% | $35.3M | added +13.2% | 2015 Q1 |
| Jones Financial Companies Lllp | 1.77M | 0.41% | $33.5M | added +18180.6% | 2023 Q4 |
| Natixis Advisors, LLC | 1.72M | 0.40% | $32.6M | trimmed -5.9% | 2023 Q2 |
| Kinetic Partners Management, LP (focused) | 1.71M | 0.40% | $32.4M | added +34.8% | 2025 Q4 |
| Cibc Bancorp USA INC. | 1.69M | 0.39% | $32.0M | added +483012% | 2024 Q1 |
| Woodline Partners LP | 1.69M | 0.39% | $32.0M | added +5.3% | 2025 Q2 |
| Balyasny Asset Management | 1.66M | 0.38% | $31.5M | added +1566% | 2025 Q1 |
| Bank OF America CORP /DE/ | 1.51M | 0.35% | $28.7M | added +81.6% | ≤2013 |
| State Street | 1.49M | 0.35% | $28.3M | added +2.6% | 2015 Q3 |
| Macquarie Group LTD | 1.35M | 0.31% | $25.5M | opened | 2026 Q1 |
| Bwcp, LP (focused) | 1.21M | 0.28% | $22.9M | added +15.5% | 2025 Q3 |
| Apollo Management | 1.17M | 0.27% | $22.3M | opened | 2026 Q1 |
| Long Pond Capital, LP (focused) | 1.16M | 0.27% | $21.9M | opened | 2025 Q3 |
| Senator Investment Group LP | 1.11M | 0.26% | $21.0M | trimmed -39.4% | 2025 Q3 |
| Brown Advisory INC | 1.08M | 0.25% | $20.5M | added +6.3% | 2025 Q2 |
| Davidson Kempner | 1.05M | 0.24% | $19.9M | opened | 2026 Q1 |
| Russell Investments Group, LTD. | 1.02M | 0.24% | $19.4M | added +8044.3% | 2021 Q2 |
| Calamos Advisors LLC | 993.3k | 0.23% | $18.8M | added +26.4% | 2025 Q3 |
| Geode Capital | 917.9k | 0.21% | $17.4M | added +0.7% | 2025 Q3 |
| Aristotle Capital Boston, LLC | 847.5k | 0.20% | $16.1M | trimmed -1.9% | 2025 Q3 |
| Clearline Capital LP | 769.5k | 0.18% | $14.6M | trimmed -11.3% | 2025 Q2 |
Largest 50 of 290 shown; the full ranked, searchable register is at boothcheck.com/holders/JHX. 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.