PLATINUM INVESTMENT MANAGEMENT LTD — 13F Holdings & Portfolio
CIK 1256071 · latest 13F-HR filed 2026-08-13
PLATINUM INVESTMENT MANAGEMENT LTD manages $406.7M in 13F-reported U.S. long-equity assets across 85 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are ZTO (10.97%), MU (5.05%), LRCX (4.95%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 10 new positions, exited 14, added to 39, and trimmed 24.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
LEVEL 8, 7 MACQUARIE PLACE
SYDNEY AUSTRALIA 2000, C3 00000
$406.7M
Long-equity book
85
Distinct positions
2026-06-30
Filed 2026-08-13
+10 / −14 / ↑39 / ↓24
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MICRON TECHNOLOGY INC$12.5M +156.8%
- LAM RESEARCH CORP$10.2M +102.8%
- APOGEE THERAPEUTICS INC$2.8M +57.7%
- ADVANCED MICRO DEVICES INC$2.7M +185.6%
- KLA CORP$2.3M +104.9%
Top Trims
- ZTO EXPRESS CAYMAN INC-$5.6M -11.1%
- TRIP COM GROUP LTD-$4.9M -25.8%
- ZOETIS INC-$4.2M -85.5%
- DINGDONG CAYMAN LTD-$4.2M -24.9%
- ADC THERAPEUTICS SA-$3.1M -83.3%
New Positions
- DATADOG INC$3.1M
- ANALOG DEVICES INC$2.2M
- SERVICENOW INC$2.0M
- DOORDASH INC$1.8M
- PALO ALTO NETWORKS INC$1.6M
Exited Positions
- TERNS PHARMACEUTICALS INC$5.8M
- CENTESSA PHARMACEUTICALS PLC$5.5M
- ALPHABET INC$3.5M
- MASTERCARD INCORPORATED$2.8M
- INTUITIVE SURGICAL INC$2.2M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ZTO EXPRESS CAYMAN INC | ZTO | 98980A105 | $44.6M | 10.97% | 1,994,127 | SH |
| 2 | MICRON TECHNOLOGY INC | MU | 595112103 | $20.5M | 5.05% | 17,782 | SH |
| 3 | LAM RESEARCH CORP | LRCX | 512807306 | $20.1M | 4.95% | 46,439 | SH |
| 4 | TRIP COM GROUP LTD | TCOM | 89677Q107 | $14.0M | 3.45% | 351,921 | SH |
| 5 | DINGDONG CAYMAN LTD | DDL | 25445D101 | $12.5M | 3.08% | 6,486,507 | SH |
| 6 | NOAH HLDGS LTD | NOAH | 65487X102 | $9.9M | 2.44% | 993,612 | SH |
| 7 | BROADCOM INC | AVGO | 11135F101 | $9.9M | 2.43% | 26,186 | SH |
| 8 | BIRKENSTOCK HOLDING PLC | BIRK | M2029K104 | $9.0M | 2.22% | 210,000 | SH |
| 9 | ASTRAZENECA PLC | AZN | G0593M107 | $9.0M | 2.21% | 48,088 | SH |
| 10 | ALPHABET INC | GOOG | 02079K107 | $8.7M | 2.14% | 24,592 | SH |
| 11 | MERCK & CO INC | MRK | 58933Y105 | $8.1M | 2.00% | 63,316 | SH |
| 12 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $7.7M | 1.90% | 58,314 | SH |
| 13 | ABBVIE INC | ABBV | 00287Y109 | $7.6M | 1.86% | 30,102 | SH |
| 14 | JOHNSON & JOHNSON | JNJ | 478160104 | $7.1M | 1.74% | 27,830 | SH |
| 15 | YUM BRANDS INC | YUM | 988498101 | $6.4M | 1.57% | 39,847 | SH |
| 16 | PDD HOLDINGS INC | PDD | 722304102 | $6.0M | 1.47% | 78,445 | SH |
| 17 | COGENT BIOSCIENCES INC | COGT | 19240Q201 | $6.0M | 1.47% | 154,220 | SH |
| 18 | UBS GROUP AG | UBS | H42097107 | $5.8M | 1.43% | 117,507 | SH |
| 19 | NVIDIA CORPORATION | NVDA | 67066G104 | $5.6M | 1.39% | 28,191 | SH |
| 20 | IMMUNOVANT INC | IMVT | 45258J102 | $5.6M | 1.37% | 144,671 | SH |
| 21 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 04280A100 | $5.3M | 1.30% | 64,752 | SH |
| 22 | IDEAYA BIOSCIENCES INC | IDYA | 45166A102 | $5.2M | 1.27% | 138,708 | SH |
| 23 | IQVIA HLDGS INC | IQV | 46266C105 | $5.2M | 1.27% | 26,708 | SH |
| 24 | H WORLD GROUP LTD | HTHT | 44332N106 | $4.9M | 1.21% | 117,996 | SH |
| 25 | VERA THERAPEUTICS INC | VERA | 92337R101 | $4.9M | 1.20% | 113,687 | SH |
| 26 | STRUCTURE THERAPEUTICS INC | GPCR | 86366E106 | $4.8M | 1.19% | 90,363 | SH |
| 27 | VISA INC | V | 92826C839 | $4.8M | 1.18% | 14,000 | SH |
| 28 | CATERPILLAR INC | CAT | 149123101 | $4.8M | 1.18% | 4,500 | SH |
| 29 | ROGERS COMMUNICATIONS INC | RCI | 775109200 | $4.8M | 1.18% | 147,160 | SH |
| 30 | AMER SPORTS INC | AS | G0260P102 | $4.7M | 1.16% | 140,000 | SH |
| 31 | KROGER CO | KR | 501044101 | $4.5M | 1.11% | 81,305 | SH |
| 32 | KLA CORP | KLAC | 482480100 | $4.4M | 1.08% | 14,580 | SH |
| 33 | CAMECO CORP | CCJ | 13321L108 | $4.3M | 1.06% | 42,356 | SH |
| 34 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $4.2M | 1.03% | 7,210 | SH |
| 35 | ARCUS BIOSCIENCES INC | RCUS | 03969F109 | $4.1M | 1.02% | 134,217 | SH |
| 36 | ADOBE INC | ADBE | 00724F101 | $3.8M | 0.94% | 18,571 | SH |
| 37 | FLOOR & DECOR HLDGS INC | FND | 339750101 | $3.7M | 0.91% | 62,500 | SH |
| 38 | META PLATFORMS INC | META | 30303M102 | $3.7M | 0.90% | 6,500 | SH |
| 39 | PALISADE BIO INC | PALI | 696389402 | $3.6M | 0.89% | 1,730,866 | SH |
| 40 | DUTCH BROS INC | BROS | 26701L100 | $3.6M | 0.88% | 50,000 | SH |
| 41 | FAIR ISAAC CORP | FICO | 303250104 | $3.6M | 0.88% | 3,000 | SH |
| 42 | GE VERNOVA INC | GEV | 36828A101 | $3.6M | 0.88% | 3,047 | SH |
| 43 | HOME DEPOT INC | HD | 437076102 | $3.5M | 0.87% | 10,000 | SH |
| 44 | VALARIS LTD | VAL | G9460G101 | $3.3M | 0.82% | 45,956 | SH |
| 45 | E L F BEAUTY INC | ELF | 26856L103 | $3.3M | 0.82% | 45,000 | SH |
| 46 | CAVA GROUP INC | CAVA | 148929102 | $3.3M | 0.81% | 42,000 | SH |
| 47 | DEFINIUM THERAPEUTICS INC | DFTX | 24477V105 | $3.3M | 0.81% | 70,000 | SH |
| 48 | ROIVANT SCIENCES LTD | ROIV | G76279101 | $3.3M | 0.80% | 92,397 | SH |
| 49 | TRANSUNION | TRU | 89400J107 | $3.2M | 0.79% | 44,595 | SH |
| 50 | REVOLUTION MEDICINES INC | RVMD | 76155X100 | $3.2M | 0.78% | 16,994 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-13 | $406.7M | 85 | 0001256071-26-000007 |
| 2026-03-31 | 2026-05-14 | $396.8M | 89 | 0001256071-26-000005 |
| 2025-12-31 | 2026-02-13 | $432.7M | 124 | 0001256071-26-000004 |
| 2025-09-30 | 2025-11-13 | $1.55B | 120 | 0001256071-25-000009 |