Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 20-F filed 2026-03-20, as of 2025-12-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | ZGN · NYSE | 268,240,430 | 75,277,896 | 28.1% | 134 | N30577105 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (134 of 134 · N30577105)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | Temasek Holdings (Private) Ltd | 27,242,276 | 10.16% | $354.7M | — |
| 2 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 4,529,874 | 1.69% | $59.0M | +332,620 (+7.9%) |
| 3 | PRICE T ROWE ASSOCIATES INC /MD/ | 4,512,858 | 1.68% | $58.8M | +556,748 (+14.1%) |
| 4 | BlackRock, Inc. | 2,748,557 | 1.02% | $35.8M | -472,665 (-14.7%) |
| 5 | Amundi | 2,593,494 | 0.97% | $33.8M | +1,568,000 (+152.9%) |
| 6 | HARRIS ASSOCIATES L P | 2,435,700 | 0.91% | $31.7M | -476,100 (-16.4%) |
| 7 | Point72 Asset Management, L.P. | 2,301,830 | 0.86% | $30.0M | +324,514 (+16.4%) |
| 8 | AMERICAN CENTURY COMPANIES INC | 2,285,256 | 0.85% | $29.8M | +712,358 (+45.3%) |
| 9 | Eurizon Capital SGR S.p.A. | 2,178,653 | 0.81% | $28.4M | +168,509 (+8.4%) |
| 10 | Artisan Partners Limited Partnership | 1,689,307 | 0.63% | $22.0M | -150,844 (-8.2%) |
| 11 | Tabor Asset Management, LP | 1,682,838 | 0.63% | $21.9M | +244,292 (+17.0%) |
| 12 | Liontrust Investment Partners LLP | 1,443,157 | 0.54% | $18.8M | NEW |
| 13 | Hood River Capital Management LLC | 1,256,808 | 0.47% | $16.4M | NEW |
| 14 | Balyasny Asset Management L.P. | 1,131,031 | 0.42% | $14.7M | +576,398 (+103.9%) |
| 15 | FEDERATED HERMES, INC. | 1,055,514 | 0.39% | $13.7M | +732,144 (+226.4%) |
| 16 | UBS Group AG | 946,516 | 0.35% | $12.3M | -497,563 (-34.5%) |
| 17 | OSBORNE PARTNERS CAPITAL MANAGEMENT, LLC | 936,573 | 0.35% | $12.2M | -5,885 (-0.6%) |
| 18 | GAM Holding AG | 857,873 | 0.32% | $11.2M | -187,869 (-18.0%) |
| 19 | STATE STREET CORP | 850,384 | 0.32% | $11.1M | -126,293 (-12.9%) |
| 20 | Portolan Capital Management, LLC | 753,948 | 0.28% | $9.8M | +43,322 (+6.1%) |
| 21 | GOLDMAN SACHS GROUP INC | 737,841 | 0.28% | $9.6M | +490,590 (+198.4%) |
| 22 | Walleye Capital LLC | 737,674 | 0.28% | $9.6M | +71,823 (+10.8%) |
| 23 | BANK OF AMERICA CORP /DE/ | 690,940 | 0.26% | $9.0M | +107,580 (+18.4%) |
| 24 | SEI INVESTMENTS CO | 647,598 | 0.24% | $8.4M | +255,385 (+65.1%) |
| 25 | GEODE CAPITAL MANAGEMENT, LLC | 603,207 | 0.22% | $7.9M | -128,258 (-17.5%) |
| 26 | FIL Ltd | 591,203 | 0.22% | $7.7M | +19,507 (+3.4%) |
| 27 | MILLENNIUM MANAGEMENT LLC | 576,833 | 0.22% | $7.5M | +550,270 (+2071.6%) |
| 28 | QVIDTVM Management LLC | 455,804 | 0.17% | $5.9M | -70,089 (-13.3%) |
| 29 | CITADEL ADVISORS LLC | 438,012 | 0.16% | $5.7M | NEW |
| 30 | Nuveen, LLC | 422,886 | 0.16% | $5.5M | +336,207 (+387.9%) |
| 31 | Informed Momentum Co LLC | 380,869 | 0.14% | $5.0M | NEW |
| 32 | VANGUARD PORTFOLIO MANAGEMENT LLC | 349,692 | 0.13% | $4.6M | -15,421 (-4.2%) |
| 33 | JPMORGAN CHASE & CO | 347,309 | 0.13% | $4.5M | +321,782 (+1260.6%) |
| 34 | OCCUDO QUANTITATIVE STRATEGIES LP | 312,244 | 0.12% | $4.1M | +238,320 (+322.4%) |
| 35 | FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | 290,599 | 0.11% | $3.8M | -64,009 (-18.1%) |
| 36 | MARSHALL WACE, LLP | 276,123 | 0.10% | $3.6M | +258,623 (+1477.8%) |
| 37 | Global IMC LLC | 262,767 | 0.10% | $3.4M | NEW |
| 38 | NORTHERN TRUST CORP | 256,580 | 0.10% | $3.3M | -71,164 (-21.7%) |
| 39 | NEW YORK STATE COMMON RETIREMENT FUND | 181,980 | 0.07% | $2.4M | +31,381 (+20.8%) |
| 40 | Creative Planning | 162,695 | 0.06% | $2.1M | +41,357 (+34.1%) |
| 41 | Schonfeld Strategic Advisors LLC | 157,583 | 0.06% | $2.1M | +138,941 (+745.3%) |
| 42 | WELLINGTON MANAGEMENT GROUP LLP | 145,159 | 0.05% | $1.9M | NEW |
| 43 | VOYA INVESTMENT MANAGEMENT LLC | 121,079 | 0.05% | $1.6M | +76,325 (+170.5%) |
| 44 | ENVESTNET ASSET MANAGEMENT INC | 119,583 | 0.04% | $1.6M | +11,370 (+10.5%) |
| 45 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 111,560 | 0.04% | $1.5M | -22,556 (-16.8%) |
| 46 | POLEN CAPITAL MANAGEMENT LLC | 111,273 | 0.04% | $1.4M | NEW |
| 47 | CastleKnight Management LP | 109,200 | 0.04% | $1.4M | — |
| 48 | MORGAN STANLEY | 105,859 | 0.04% | $1.4M | -36,126 (-25.4%) |
| 49 | SG Americas Securities, LLC | 105,456 | 0.04% | $1.4M | +73,033 (+225.3%) |
| 50 | Bank of New York Mellon Corp | 101,457 | 0.04% | $1.3M | -16,903 (-14.3%) |
| 51 | DENALI ADVISORS LLC | 100,600 | 0.04% | $1.3M | NEW |
| 52 | Spectrum Strategic Capital Management, LLC | 94,751 | 0.04% | $1.2M | -19,571 (-17.1%) |
| 53 | RENAISSANCE GROUP LLC | 91,470 | 0.03% | $1.2M | -1,155 (-1.2%) |
| 54 | Numerai GP LLC | 90,228 | 0.03% | $1.2M | +42,346 (+88.4%) |
| 55 | PDT Partners, LLC | 88,668 | 0.03% | $1.2M | — |
| 56 | Squarepoint Ops LLC | 86,332 | 0.03% | $1.1M | -183,676 (-68.0%) |
| 57 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | 84,212 | 0.03% | $1.1M | NEW |
| 58 | AQR CAPITAL MANAGEMENT LLC | 77,753 | 0.03% | $1.0M | +7,023 (+9.9%) |
| 59 | ALLIANCEBERNSTEIN L.P. | 69,100 | 0.03% | $720K | +15,400 (+28.7%) |
| 60 | RHUMBLINE ADVISERS | 62,906 | 0.02% | $819K | -5,056 (-7.4%) |
| 61 | TWO SIGMA INVESTMENTS, LP | 57,632 | 0.02% | $750K | -119,000 (-67.4%) |
| 62 | STRS OHIO | 55,400 | 0.02% | $721K | NEW |
| 63 | MOORE CAPITAL MANAGEMENT, LP | 50,000 | 0.02% | $651K | — |
| 64 | PRELUDE CAPITAL MANAGEMENT, LLC | 46,319 | 0.02% | $603K | NEW |
| 65 | Engineers Gate Manager LP | 46,152 | 0.02% | $601K | NEW |
| 66 | DEUTSCHE BANK AG\ | 45,487 | 0.02% | $592K | -18,146 (-28.5%) |
| 67 | Central Pacific Bank - Trust Division | 43,302 | 0.02% | $564K | +9,492 (+28.1%) |
| 68 | VANGUARD FIDUCIARY TRUST CO | 43,238 | 0.02% | $563K | -10,426 (-19.4%) |
| 69 | WELLS FARGO & COMPANY/MN | 41,771 | 0.02% | $544K | +19,336 (+86.2%) |
| 70 | Handelsbanken Fonder AB | 37,800 | 0.01% | $492K | +6,800 (+21.9%) |
| 71 | ARMISTICE CAPITAL, LLC | 37,297 | 0.01% | $486K | NEW |
| 72 | Bank Julius Baer & Co. Ltd, Zurich | 35,000 | 0.01% | $456K | — |
| 73 | MetLife Investment Management, LLC | 33,096 | 0.01% | $431K | -4,852 (-12.8%) |
| 74 | JACOBS LEVY EQUITY MANAGEMENT, INC | 32,705 | 0.01% | $426K | NEW |
| 75 | Graham Capital Management, L.P. | 31,868 | 0.01% | $415K | NEW |
| 76 | Invesco Ltd. | 26,652 | 0.01% | $347K | -13,536 (-33.7%) |
| 77 | CITIGROUP INC | 26,560 | 0.01% | $346K | +13,809 (+108.3%) |
| 78 | Russell Investments Group, Ltd. | 25,301 | 0.01% | $329K | +13,911 (+122.1%) |
| 79 | Weiss Asset Management LP | 23,040 | 0.01% | $300K | NEW |
| 80 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 20,979 | 0.01% | $273K | -7,982 (-27.6%) |
| 81 | INTECH INVESTMENT MANAGEMENT LLC | 19,194 | 0.01% | $250K | -1,860 (-8.8%) |
| 82 | Jain Global LLC | 18,920 | 0.01% | $246K | NEW |
| 83 | Next Capital Management LLC | 18,275 | 0.01% | $238K | — |
| 84 | DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD. | 18,000 | 0.01% | $234K | NEW |
| 85 | Police & Firemen's Retirement System of New Jersey | 17,323 | 0.01% | $226K | — |
| 86 | Quantbot Technologies LP | 17,017 | 0.01% | $222K | NEW |
| 87 | IQ EQ FUND MANAGEMENT (SINGAPORE) PRIVATE Ltd | 17,000 | 0.01% | $221K | NEW |
| 88 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 16,380 | 0.01% | $213K | +308 (+1.9%) |
| 89 | Vident Advisory, LLC | 15,490 | 0.01% | $202K | -1,672 (-9.7%) |
| 90 | Vanguard Personalized Indexing Management, LLC | 14,348 | 0.01% | $187K | +4,078 (+39.7%) |
| 91 | Sterling Capital Management LLC | 14,141 | 0.01% | $184K | +13,740 (+3426.4%) |
| 92 | Savant Capital, LLC | 13,648 | 0.01% | $178K | -949 (-6.5%) |
| 93 | State of Alaska, Department of Revenue | 13,578 | 0.01% | $176K | — |
| 94 | LANARK FINANCIAL, INC. | 12,543 | 0.00% | $163K | NEW |
| 95 | JONES FINANCIAL COMPANIES LLLP | 12,273 | 0.00% | $161K | +930 (+8.2%) |
| 96 | State of Wyoming | 10,579 | 0.00% | $138K | -3,798 (-26.4%) |
| 97 | LOS ANGELES CAPITAL MANAGEMENT LLC | 10,090 | 0.00% | $131K | -41,350 (-80.4%) |
| 98 | BNP PARIBAS FINANCIAL MARKETS | 8,982 | 0.00% | $117K | -4,674 (-34.2%) |
| 99 | BARCLAYS PLC | 8,261 | 0.00% | $108K | -3,132 (-27.5%) |
| 100 | FMR LLC | 7,949 | 0.00% | $103K | +2,130 (+36.6%) |
| 101 | Tower Research Capital LLC (TRC) | 7,125 | 0.00% | $93K | +4,688 (+192.4%) |
| 102 | Parallel Advisors, LLC | 5,265 | 0.00% | $69K | -795 (-13.1%) |
| 103 | Legal & General Group Plc | 4,635 | 0.00% | $60K | -738 (-13.7%) |
| 104 | Ameritas Investment Partners, Inc. | 4,152 | 0.00% | $54K | -1,010 (-19.6%) |
| 105 | SBI Securities Co., Ltd. | 3,713 | 0.00% | $48K | — |
| 106 | ROYAL BANK OF CANADA | 3,597 | 0.00% | $47K | +2,053 (+133.0%) |
| 107 | Caitong International Asset Management Co., Ltd | 2,142 | 0.00% | $28K | +3 (+0.1%) |
| 108 | EverSource Wealth Advisors, LLC | 1,888 | 0.00% | $25K | -900 (-32.3%) |
| 109 | Aster Capital Management (DIFC) Ltd | 1,555 | 0.00% | $20K | NEW |
| 110 | Larson Financial Group LLC | 1,293 | 0.00% | $17K | — |
| 111 | OSAIC HOLDINGS, INC. | 1,241 | 0.00% | $16K | -315 (-20.2%) |
| 112 | GAMMA Investing LLC | 1,180 | 0.00% | $15K | +165 (+16.3%) |
| 113 | Zurcher Kantonalbank (Zurich Cantonalbank) | 1,049 | 0.00% | $14K | — |
| 114 | Arax Advisory Partners | 1,026 | 0.00% | $13K | +1,006 (+5030.0%) |
| 115 | SIGNATUREFD, LLC | 986 | 0.00% | $13K | +197 (+25.0%) |
| 116 | Bare Financial Services, Inc | 713 | 0.00% | $9K | — |
| 117 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 630 | 0.00% | $8K | -2,714 (-81.2%) |
| 118 | Allworth Financial LP | 490 | 0.00% | $6K | +58 (+13.4%) |
| 119 | Basecamp Wealth Advisors LLC | 413 | 0.00% | $5K | +358 (+650.9%) |
| 120 | PNC Financial Services Group, Inc. | 347 | 0.00% | $5K | +266 (+328.4%) |
| 121 | Smartleaf Asset Management LLC | 344 | 0.00% | $4K | — |
| 122 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 190 | 0.00% | $2K | — |
| 123 | SJS Investment Consulting Inc. | 163 | 0.00% | $2K | NEW |
| 124 | WealthCollab, LLC | 138 | 0.00% | $2K | — |
| 125 | NISA INVESTMENT ADVISORS, LLC | 137 | 0.00% | $2K | — |
| 126 | Essential Partners LLC | 121 | 0.00% | $2K | +13 (+12.0%) |
| 127 | ROTHSCHILD INVESTMENT LLC | 66 | 0.00% | $859 | — |
| 128 | Covestor Ltd | 57 | 0.00% | $1K | +40 (+235.3%) |
| 129 | Clearstead Advisors, LLC | 38 | 0.00% | $496 | NEW |
| 130 | Farther Finance Advisors, LLC | 36 | 0.00% | $469 | +11 (+44.0%) |
| 131 | True Wealth Design, LLC | 23 | 0.00% | $300 | — |
| 132 | IFP Advisors, Inc | 11 | 0.00% | $143 | -4 (-26.7%) |
| 133 | Stone House Investment Management, LLC | 9 | 0.00% | $117 | NEW |
| 134 | DUPONT CAPITAL MANAGEMENT CORP | 1 | 0.00% | $13 | — |
Exited since 2026-03-31 (16 filers; largest 16 shown)
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Strategic Holding Group S.a r.l. | SCHEDULE 13G/A | 2026-08-12 | 2026-06-30 | 22,568,556 | 8.41% |
| Napier Investments Pte. Ltd. | SCHEDULE 13D | 2025-08-04 | 2025-07-29 | 14,121,062 | 5.26% |
| Temasek Holdings (Private) Limited | SCHEDULE 13D | 2025-08-04 | 2025-07-29 | 26,821,043 | 10% |
| Tembusu Capital Pte. Ltd. | SCHEDULE 13D | 2025-08-04 | 2025-07-29 | 14,121,062 | 5.26% |
| Venezio Investments Pte. Ltd. | SCHEDULE 13D | 2025-08-04 | 2025-07-29 | 14,121,062 | 5.26% |
| MONTERUBELLO S.S. | SCHEDULE 13G/A | 2025-02-14 | 2024-12-31 | 152,734,550 | 60.5% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.