# EDGAR Filing Document

**Accession Number:** 0001256071
**File Stem:** 0001256071-25-000009
**Filing Date:** 2025-11
**Character Count:** 15622
**Document Hash:** 5ec7abbc50ff56d1fb4785fb54bf18bd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001256071-25-000009.hdr.sgml**: 20251113

**ACCESSION NUMBER**: 0001256071-25-000009

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251113

**DATE AS OF CHANGE**: 20251113

**EFFECTIVENESS DATE**: 20251113

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PLATINUM INVESTMENT MANAGEMENT LTD
- **CENTRAL INDEX KEY:** 0001256071

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-14358
- **FILM NUMBER:** 251479506

**BUSINESS ADDRESS:**
- **STREET 1:** C/O PLATINUM ASSET MANAGEMENT
- **STREET 2:** LEVEL 8, 7 MACQUARIE PLACE
- **CITY:** SYDNEY AUSTRALIA 2000
- **STATE:** C3
- **ZIP:** 00000
- **BUSINESS PHONE:** 61292557533

**MAIL ADDRESS:**
- **STREET 1:** C/O PLATINUM ASSET MANAGEMENT
- **STREET 2:** LEVEL 8, 7 MACQUARIE PLACE
- **CITY:** SYDNEY AUSTRALIA 2000
- **STATE:** C3
- **ZIP:** 00000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PLATINUM ASSET MANAGEMENT LTD
- **DATE OF NAME CHANGE:** 20030722

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 09-30-2025

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** PLATINUM INVESTMENT MANAGEMENT LTD<br>**Address:** C/O PLATINUM ASSET MANAGEMENT<br>LEVEL 8 7 MACQUARIE PLACE<br>SYDNEY AUSTRALIA 2000, C3 00000

**Form 13F File Number:** 028-14358

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Joanne Jefferies<br>**Title:** Chief Legal and Compliance Officer<br>**Phone:** 6 129 255-7574

**Signature, Place, and Date of Signing:**

/s/Joanne Jefferies  Sydney, C3  11-13-2025<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 120

**Form 13F Information Table Value Total:** $1546985529

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ABBVIE INC | COM | 00287Y109 |  | 85706615 | 370159 | SH |  | SOLE |  | 370159 | 0 | 0 |
| ADC THERAPEUTICS SA | SHS | H0036K147 |  | 4626884 | 1156721 | SH |  | SOLE |  | 1156721 | 0 | 0 |
| ADOBE INC | COM | 00724F101 |  | 67382305 | 191020 | SH |  | SOLE |  | 191020 | 0 | 0 |
| ALIBABA GROUP HLDG LTD | SPONSORED ADS | 01609W102 |  | 2342435 | 13106 | SH |  | SOLE |  | 8823 | 0 | 4283 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 92682604 | 381253 | SH |  | SOLE |  | 381253 | 0 | 0 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 31443036 | 129103 | SH |  | SOLE |  | 129103 | 0 | 0 |
| AMAZON COM INC | COM | 023135106 |  | 9308231 | 42393 | SH |  | SOLE |  | 42393 | 0 | 0 |
| AMER SPORTS INC | COM SHS | G0260P102 |  | 6255000 | 180000 | SH |  | SOLE |  | 180000 | 0 | 0 |
| AMPHENOL CORP NEW | CL A | 032095101 |  | 2496161 | 20171 | SH |  | SOLE |  | 20171 | 0 | 0 |
| APOGEE THERAPEUTICS INC | COM | 03770N101 |  | 3723813 | 93728 | SH |  | SOLE |  | 93728 | 0 | 0 |
| ARCUS BIOSCIENCES INC | COM | 03969F109 |  | 2091449 | 153783 | SH |  | SOLE |  | 153783 | 0 | 0 |
| ARISTA NETWORKS INC | COM SHS | 040413205 |  | 2512769 | 17245 | SH |  | SOLE |  | 17245 | 0 | 0 |
| ARROWHEAD PHARMACEUTICALS IN | COM | 04280A100 |  | 3829149 | 111022 | SH |  | SOLE |  | 111022 | 0 | 0 |
| ARVINAS INC | COM | 04335A105 |  | 740644 | 86930 | SH |  | SOLE |  | 86930 | 0 | 0 |
| AURA BIOSCIENCES INC | COM | 05153U107 |  | 836784 | 135402 | SH |  | SOLE |  | 135402 | 0 | 0 |
| BEST BUY INC | COM | 086516101 |  | 304900 | 4032 | SH |  | SOLE |  | 4032 | 0 | 0 |
| BICYCLE THERAPEUTICS PLC | SPONSORED ADS | 088786108 |  | 1428827 | 184603 | SH |  | SOLE |  | 184603 | 0 | 0 |
| BIONTECH SE | SPONSORED ADS | 09075V102 |  | 1666875 | 16902 | SH |  | SOLE |  | 16902 | 0 | 0 |
| BIRKENSTOCK HOLDING PLC | COM SHS | M2029K104 |  | 11765000 | 260000 | SH |  | SOLE |  | 260000 | 0 | 0 |
| BOISE CASCADE CO DEL | COM | 09739D100 |  | 387373 | 5010 | SH |  | SOLE |  | 5010 | 0 | 0 |
| BOOKING HOLDINGS INC | COM | 09857L108 |  | 1079854 | 200 | SH |  | SOLE |  | 200 | 0 | 0 |
| BRIDGEBIO PHARMA INC | COM | 10806X102 |  | 3232953 | 62244 | SH |  | SOLE |  | 62244 | 0 | 0 |
| BRIGHT MINDS BIOSCIENCES INC | COM NEW | 10919W405 |  | 1717163 | 28308 | SH |  | SOLE |  | 28308 | 0 | 0 |
| BROADCOM INC | COM | 11135F101 |  | 70290955 | 213061 | SH |  | SOLE |  | 213061 | 0 | 0 |
| CADENCE DESIGN SYSTEM INC | COM | 127387108 |  | 1592964 | 4535 | SH |  | SOLE |  | 4535 | 0 | 0 |
| CAMECO CORP | COM | 13321L108 |  | 56568749 | 674490 | SH |  | SOLE |  | 674490 | 0 | 0 |
| CENTESSA PHARMACEUTICALS PLC | SPONSORED ADS | 152309100 |  | 4520176 | 186399 | SH |  | SOLE |  | 186399 | 0 | 0 |
| CODEXIS INC | COM | 192005106 |  | 645292 | 264464 | SH |  | SOLE |  | 264464 | 0 | 0 |
| COGENT BIOSCIENCES INC | COM | 19240Q201 |  | 3152077 | 219504 | SH |  | SOLE |  | 219504 | 0 | 0 |
| CORCEPT THERAPEUTICS INC | COM | 218352102 |  | 145443 | 1750 | SH |  | SOLE |  | 1750 | 0 | 0 |
| CORE LABORATORIES INC | COM | 21867A105 |  | 293649 | 23758 | SH |  | SOLE |  | 23758 | 0 | 0 |
| COSTAR GROUP INC | COM | 22160N109 |  | 4640350 | 55000 | SH |  | SOLE |  | 55000 | 0 | 0 |
| COUPANG INC | CL A | 22266T109 |  | 1891879 | 58754 | SH |  | SOLE |  | 58754 | 0 | 0 |
| CVS HEALTH CORP | COM | 126650100 |  | 299298 | 3970 | SH |  | SOLE |  | 3970 | 0 | 0 |
| DINGDONG CAYMAN LTD | ADS | 25445D101 |  | 13822934 | 6677746 | SH |  | SOLE |  | 6149205 | 0 | 528541 |
| DUTCH BROS INC | CL A | 26701L100 |  | 1308500 | 25000 | SH |  | SOLE |  | 25000 | 0 | 0 |
| E L F BEAUTY INC | COM | 26856L103 |  | 3974400 | 30000 | SH |  | SOLE |  | 30000 | 0 | 0 |
| ECOPETROL S A | SPONSORED ADS | 279158109 |  | 135488 | 14711 | SH |  | SOLE |  | 14711 | 0 | 0 |
| FAIR ISAAC CORP | COM | 303250104 |  | 7720598 | 5159 | SH |  | SOLE |  | 5159 | 0 | 0 |
| FLOOR  DECOR HLDGS INC | CL A | 339750101 |  | 4422000 | 60000 | SH |  | SOLE |  | 60000 | 0 | 0 |
| FLUTTER ENTMT PLC | SHS | G3643J108 |  | 5924760 | 23000 | SH |  | SOLE |  | 23000 | 0 | 0 |
| FUTU HLDGS LTD | SPON ADS CL A | 36118L106 |  | 275126 | 1582 | SH |  | SOLE |  | 1582 | 0 | 0 |
| GENERAL MLS INC | COM | 370334104 |  | 276957 | 5493 | SH |  | SOLE |  | 5493 | 0 | 0 |
| GLOBE LIFE INC | COM | 37959E102 |  | 148260 | 1037 | SH |  | SOLE |  | 1037 | 0 | 0 |
| GOODYEAR TIRE  RUBR CO | COM | 382550101 |  | 253677 | 33914 | SH |  | SOLE |  | 33914 | 0 | 0 |
| GOSSAMER BIO INC | COM | 38341P102 |  | 2009754 | 764165 | SH |  | SOLE |  | 764165 | 0 | 0 |
| GRAB HOLDINGS LIMITED | CLASS A ORD | G4124C109 |  | 1132308 | 188091 | SH |  | SOLE |  | 188091 | 0 | 0 |
| H WORLD GROUP LTD | SPONSORED ADS | 44332N106 |  | 7161471 | 183111 | SH |  | SOLE |  | 176742 | 0 | 6369 |
| HELLO GROUP INC | ADS | 423403104 |  | 145885 | 19661 | SH |  | SOLE |  | 19661 | 0 | 0 |
| HERBALIFE LTD | COM SHS | G4412G101 |  | 136846 | 16214 | SH |  | SOLE |  | 16214 | 0 | 0 |
| HOME DEPOT INC | COM | 437076102 |  | 5672660 | 14000 | SH |  | SOLE |  | 14000 | 0 | 0 |
| IDEAYA BIOSCIENCES INC | COM | 45166A102 |  | 4541812 | 166917 | SH |  | SOLE |  | 166917 | 0 | 0 |
| IDEXX LABS INC | COM | 45168D104 |  | 2236115 | 3500 | SH |  | SOLE |  | 3500 | 0 | 0 |
| IMMUNOVANT INC | COM | 45258J102 |  | 3155119 | 195727 | SH |  | SOLE |  | 195727 | 0 | 0 |
| INTEL CORP | COM | 458140100 |  | 1490392 | 44423 | SH |  | SOLE |  | 44423 | 0 | 0 |
| INTERCONTINENTAL EXCHANGE IN | COM | 45866F104 |  | 100337253 | 595544 | SH |  | SOLE |  | 595544 | 0 | 0 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 |  | 2167277 | 4846 | SH |  | SOLE |  | 4846 | 0 | 0 |
| IQVIA HLDGS INC | COM | 46266C105 |  | 69838089 | 367685 | SH |  | SOLE |  | 367685 | 0 | 0 |
| JACKSON FINANCIAL INC | COM CL A | 46817M107 |  | 141520 | 1398 | SH |  | SOLE |  | 1398 | 0 | 0 |
| JAZZ PHARMACEUTICALS PLC | SHS USD | G50871105 |  | 289565 | 2197 | SH |  | SOLE |  | 2197 | 0 | 0 |
| JD.COM INC | SPON ADS CL A | 47215P106 |  | 1296709 | 37070 | SH |  | SOLE |  | 8420 | 0 | 28650 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 79170075 | 426977 | SH |  | SOLE |  | 426977 | 0 | 0 |
| KLA CORP | COM NEW | 482480100 |  | 2763373 | 2562 | SH |  | SOLE |  | 2562 | 0 | 0 |
| KOHLS CORP | COM | 500255104 |  | 251023 | 16332 | SH |  | SOLE |  | 16332 | 0 | 0 |
| KROGER CO | COM | 501044101 |  | 28688617 | 425584 | SH |  | SOLE |  | 425584 | 0 | 0 |
| KYNDRYL HLDGS INC | COMMON STOCK | 50155Q100 |  | 6156 | 205 | SH |  | SOLE |  | 205 | 0 | 0 |
| LAM RESEARCH CORP | COM NEW | 512807306 |  | 77041909 | 575369 | SH |  | SOLE |  | 575369 | 0 | 0 |
| LEONARDO DRS INC | COM | 52661A108 |  | 838175 | 18462 | SH |  | SOLE |  | 18462 | 0 | 0 |
| LIBERTY BROADBAND CORP | COM SER C | 530307305 |  | 462952 | 7286 | SH |  | SOLE |  | 7286 | 0 | 0 |
| MASTERCARD INCORPORATED | CL A | 57636Q104 |  | 2940179 | 5169 | SH |  | SOLE |  | 5169 | 0 | 0 |
| MBX BIOSCIENCES INC | COM | 55287L101 |  | 1214990 | 69428 | SH |  | SOLE |  | 69428 | 0 | 0 |
| MEIRAGTX HLDGS PLC | COM | G59665102 |  | 1049605 | 127534 | SH |  | SOLE |  | 127534 | 0 | 0 |
| MERCK  CO INC | COM | 58933Y105 |  | 78792309 | 938786 | SH |  | SOLE |  | 938786 | 0 | 0 |
| MERUS N V | COM | N5749R100 |  | 2732045 | 29018 | SH |  | SOLE |  | 29018 | 0 | 0 |
| META PLATFORMS INC | CL A | 30303M102 |  | 5507850 | 7500 | SH |  | SOLE |  | 7500 | 0 | 0 |
| MICRON TECHNOLOGY INC | COM | 595112103 |  | 78689090 | 470291 | SH |  | SOLE |  | 470291 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 4440385 | 8573 | SH |  | SOLE |  | 8573 | 0 | 0 |
| NETFLIX INC | COM | 64110L106 |  | 3059644 | 2552 | SH |  | SOLE |  | 2552 | 0 | 0 |
| NOAH HLDGS LTD | SPON ADS | 65487X102 |  | 14954403 | 1290285 | SH |  | SOLE |  | 1182598 | 0 | 107687 |
| NOBLE CORP PLC | ORD SHS A | G65431127 |  | 269989 | 9547 | SH |  | SOLE |  | 9547 | 0 | 0 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 5259877 | 28191 | SH |  | SOLE |  | 28191 | 0 | 0 |
| ONEMAIN HLDGS INC | COM | 68268W103 |  | 268016 | 4747 | SH |  | SOLE |  | 4747 | 0 | 0 |
| PALANTIR TECHNOLOGIES INC | CL A | 69608A108 |  | 856279 | 4694 | SH |  | SOLE |  | 4694 | 0 | 0 |
| PDD HOLDINGS INC | SPONSORED ADS | 722304102 |  | 11698235 | 88509 | SH |  | SOLE |  | 81315 | 0 | 7194 |
| PETROLEO BRASILEIRO SA PETRO | SP ADR NON VTG | 71654V101 |  | 855815 | 72404 | SH |  | SOLE |  | 72404 | 0 | 0 |
| PROQR THRAPEUTICS N V | SHS EURO | N71542109 |  | 2631645 | 1235514 | SH |  | SOLE |  | 1235514 | 0 | 0 |
| REVOLUTION MEDICINES INC | COM | 76155X100 |  | 960899 | 20576 | SH |  | SOLE |  | 20576 | 0 | 0 |
| ROGERS COMMUNICATIONS INC | CL B | 775109200 |  | 58684033 | 1704054 | SH |  | SOLE |  | 1704054 | 0 | 0 |
| ROIVANT SCIENCES LTD | SHS | G76279101 |  | 3622425 | 239420 | SH |  | SOLE |  | 239420 | 0 | 0 |
| SEMPRA | COM | 816851109 |  | 304852 | 3388 | SH |  | SOLE |  | 3388 | 0 | 0 |
| SERVICENOW INC | COM | 81762P102 |  | 1543310 | 1677 | SH |  | SOLE |  | 1677 | 0 | 0 |
| SKYE BIOSCIENCE INC | COM NEW | 83086J200 |  | 916063 | 233095 | SH |  | SOLE |  | 233095 | 0 | 0 |
| STOKE THERAPEUTICS INC | COM | 86150R107 |  | 773174 | 32901 | SH |  | SOLE |  | 32901 | 0 | 0 |
| STRUCTURE THERAPEUTICS INC | SPONSORED ADS | 86366E106 |  | 3437224 | 122758 | SH |  | SOLE |  | 122758 | 0 | 0 |
| TARGET CORP | COM | 87612E106 |  | 293229 | 3269 | SH |  | SOLE |  | 3269 | 0 | 0 |
| TE CONNECTIVITY PLC | ORD SHS | G87052109 |  | 2147662 | 9783 | SH |  | SOLE |  | 9783 | 0 | 0 |
| TERNS PHARMACEUTICALS INC | COM | 880881107 |  | 939922 | 125156 | SH |  | SOLE |  | 125156 | 0 | 0 |
| THE CIGNA GROUP | COM | 125523100 |  | 287097 | 996 | SH |  | SOLE |  | 996 | 0 | 0 |
| TIMKEN CO | COM | 887389104 |  | 271926 | 3617 | SH |  | SOLE |  | 3617 | 0 | 0 |
| TRANSUNION | COM | 89400J107 |  | 51488004 | 614562 | SH |  | SOLE |  | 614562 | 0 | 0 |
| TRIP COM GROUP LTD | ADS | 89677Q107 |  | 35653523 | 474116 | SH |  | SOLE |  | 429069 | 0 | 45047 |
| TYSON FOODS INC | CL A | 902494103 |  | 278993 | 5138 | SH |  | SOLE |  | 5138 | 0 | 0 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 7083917 | 72307 | SH |  | SOLE |  | 72307 | 0 | 0 |
| UBS GROUP AG | SHS | H42097107 |  | 58969208 | 1442578 | SH |  | SOLE |  | 1442578 | 0 | 0 |
| UNITEDHEALTH GROUP INC | COM | 91324P102 |  | 287980 | 834 | SH |  | SOLE |  | 834 | 0 | 0 |
| UNIVERSAL HLTH SVCS INC | CL B | 913903100 |  | 313611 | 1534 | SH |  | SOLE |  | 1534 | 0 | 0 |
| VALARIS LTD | CL A | G9460G101 |  | 47049541 | 964723 | SH |  | SOLE |  | 964723 | 0 | 0 |
| VEEVA SYS INC | CL A COM | 922475108 |  | 3309780 | 11110 | SH |  | SOLE |  | 11110 | 0 | 0 |
| VERA THERAPEUTICS INC | CL A | 92337R101 |  | 4642364 | 159751 | SH |  | SOLE |  | 159751 | 0 | 0 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 |  | 2886254 | 19132 | SH |  | SOLE |  | 19132 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 8298606 | 24309 | SH |  | SOLE |  | 24309 | 0 | 0 |
| WARNER BROS DISCOVERY INC | COM SER A | 934423104 |  | 152197 | 7793 | SH |  | SOLE |  | 7793 | 0 | 0 |
| WAVE LIFE SCIENCES LTD | SHS | Y95308105 |  | 1960252 | 267794 | SH |  | SOLE |  | 267794 | 0 | 0 |
| WHIRLPOOL CORP | COM | 963320106 |  | 258437 | 3288 | SH |  | SOLE |  | 3288 | 0 | 0 |
| WINGSTOP INC | COM | 974155103 |  | 1510080 | 6000 | SH |  | SOLE |  | 6000 | 0 | 0 |
| WOLVERINE WORLD WIDE INC | COM | 978097103 |  | 5488000 | 200000 | SH |  | SOLE |  | 200000 | 0 | 0 |
| YUM BRANDS INC | COM | 988498101 |  | 66011168 | 434284 | SH |  | SOLE |  | 434284 | 0 | 0 |
| ZOETIS INC | CL A | 98978V103 |  | 5852800 | 40000 | SH |  | SOLE |  | 40000 | 0 | 0 |
| ZTO EXPRESS CAYMAN INC | SPONSORED ADS A | 98980A105 |  | 43117920 | 2245725 | SH |  | SOLE |  | 2037464 | 0 | 208261 |
| ZYMEWORKS INC | COM | 98985Y108 |  | 2131311 | 124784 | SH |  | SOLE |  | 124784 | 0 | 0 |

---