PLATINUM INVESTMENT MANAGEMENT LTD — 13F Holdings & Portfolio
CIK 1256071 · latest 13F-HR filed 2026-05-14
PLATINUM INVESTMENT MANAGEMENT LTD manages $396.8M in 13F-reported U.S. long-equity assets across 89 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are ZTO (12.65%), TCOM (4.77%), DDL (4.20%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 7 new positions, exited 42, added to 23, and trimmed 45.
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.
$396.8M
Long-equity book
89
Distinct positions
2026-03-31
Filed 2026-05-14
+7 / −42 / ↑23 / ↓45
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- ZTO EXPRESS CAYMAN INC$8.5M +20.5%
- CATERPILLAR INC$2.9M +91.1%
- VALARIS LTD$2.2M +94.5%
- CENTESSA PHARMACEUTICALS PLC$1.6M +41.0%
- CAVA GROUP INC$1.4M +65.4%
Top Trims
- TRIP COM GROUP LTD-$13.0M -40.7%
- ALPHABET INC-$4.5M -39.0%
- FAIR ISAAC CORP-$2.9M -44.4%
- STRUCTURE THERAPEUTICS INC-$2.9M -47.3%
- MICROSOFT CORP-$2.6M -63.1%
New Positions
- ASTRAZENECA PLC$9.3M
- NETFLIX INC.$4.8M
- ECHOSTAR CORP$1.5M
- DEFINIUM THERAPEUTICS INC$1.3M
- AMPHENOL CORP$1.2M
Exited Positions
- AMAZON COM INC$7.2M
- UBER TECHNOLOGIES INC$5.2M
- WOLVERINE WORLD WIDE INC$3.6M
- GOSSAMER BIO INC$1.7M
- ARISTA NETWORKS INC$1.6M
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 | $50.2M | 12.65% | 1,994,127 | SH |
| 2 | TRIP COM GROUP LTD | TCOM | 89677Q107 | $18.9M | 4.77% | 379,718 | SH |
| 3 | DINGDONG CAYMAN LTD | DDL | 25445D101 | $16.7M | 4.20% | 6,486,507 | SH |
| 4 | LAM RESEARCH CORP | LRCX | 512807306 | $9.9M | 2.50% | 46,439 | SH |
| 5 | BIRKENSTOCK HOLDING PLC | BIRK | M2029K104 | $9.9M | 2.48% | 275,000 | SH |
| 6 | NOAH HLDGS LTD | NOAH | 65487X102 | $9.8M | 2.48% | 993,612 | SH |
| 7 | ASTRAZENECA PLC | AZN | G0593M107 | $9.3M | 2.35% | 48,088 | SH |
| 8 | BROADCOM INC | AVGO | 11135F101 | $8.1M | 2.04% | 26,186 | SH |
| 9 | PDD HOLDINGS INC | PDD | 722304102 | $8.0M | 2.02% | 78,445 | SH |
| 10 | MICRON TECHNOLOGY INC | MU | 595112103 | $8.0M | 2.01% | 23,656 | SH |
| 11 | MERCK & CO INC | MRK | 58933Y105 | $7.6M | 1.92% | 63,316 | SH |
| 12 | ALPHABET INC | GOOG | 02079K107 | $7.1M | 1.78% | 24,592 | SH |
| 13 | JOHNSON & JOHNSON | JNJ | 478160104 | $6.8M | 1.71% | 27,830 | SH |
| 14 | ABBVIE INC | ABBV | 00287Y109 | $6.5M | 1.65% | 30,102 | SH |
| 15 | YUM BRANDS INC | YUM | 988498101 | $6.2M | 1.56% | 39,847 | SH |
| 16 | CATERPILLAR INC | CAT | 149123101 | $6.0M | 1.52% | 8,500 | SH |
| 17 | H WORLD GROUP LTD | HTHT | 44332N106 | $5.9M | 1.50% | 117,996 | SH |
| 18 | TERNS PHARMACEUTICALS INC | TERN | 880881107 | $5.8M | 1.47% | 110,734 | SH |
| 19 | ROGERS COMMUNICATIONS INC | RCI | 775109200 | $5.6M | 1.42% | 147,160 | SH |
| 20 | CENTESSA PHARMACEUTICALS PLC | CNTA | 152309100 | $5.5M | 1.38% | 137,741 | SH |
| 21 | ZOETIS INC | ZTS | 98978V103 | $5.0M | 1.25% | 42,000 | SH |
| 22 | AMER SPORTS INC | AS | G0260P102 | $4.9M | 1.24% | 150,000 | SH |
| 23 | NVIDIA CORPORATION | NVDA | 67066G104 | $4.9M | 1.24% | 28,191 | SH |
| 24 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $4.9M | 1.24% | 58,314 | SH |
| 25 | NETFLIX INC. | NFLX | 64110L106 | $4.8M | 1.21% | 50,023 | SH |
| 26 | CAMECO CORP | CCJ | 13321L108 | $4.6M | 1.16% | 42,356 | SH |
| 27 | VERA THERAPEUTICS INC | VERA | 92337R101 | $4.6M | 1.15% | 113,687 | SH |
| 28 | IQVIA HLDGS INC | IQV | 46266C105 | $4.6M | 1.15% | 26,708 | SH |
| 29 | VISA INC | V | 92826C839 | $4.5M | 1.14% | 15,000 | SH |
| 30 | IMMUNOVANT INC | IMVT | 45258J102 | $4.5M | 1.14% | 181,774 | SH |
| 31 | ADOBE INC | ADBE | 00724F101 | $4.5M | 1.14% | 18,571 | SH |
| 32 | VALARIS LTD | VAL | G9460G101 | $4.5M | 1.14% | 45,956 | SH |
| 33 | UBS GROUP AG | UBS | H42097107 | $4.5M | 1.13% | 117,507 | SH |
| 34 | KROGER CO | KR | 501044101 | $4.4M | 1.11% | 60,743 | SH |
| 35 | E L F BEAUTY INC | ELF | 26856L103 | $4.4M | 1.11% | 72,500 | SH |
| 36 | COGENT BIOSCIENCES INC | COGT | 19240Q201 | $4.3M | 1.09% | 112,066 | SH |
| 37 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 04280A100 | $4.1M | 1.02% | 64,752 | SH |
| 38 | HOME DEPOT INC | HD | 437076102 | $3.8M | 0.95% | 11,500 | SH |
| 39 | INTERCONTINENTAL EXCHANGE IN | ICE | 45866F104 | $3.8M | 0.95% | 23,913 | SH |
| 40 | ADC THERAPEUTICS SA | ADCT | H0036K147 | $3.7M | 0.94% | 990,778 | SH |
| 41 | BRIDGEBIO PHARMA INC | BBIO | 10806X102 | $3.7M | 0.92% | 49,269 | SH |
| 42 | CAVA GROUP INC | CAVA | 148929102 | $3.6M | 0.92% | 45,000 | SH |
| 43 | FAIR ISAAC CORP | FICO | 303250104 | $3.6M | 0.91% | 3,400 | SH |
| 44 | ALPHABET INC | GOOGL | 02079K305 | $3.5M | 0.87% | 12,000 | SH |
| 45 | FLOOR & DECOR HLDGS INC | FND | 339750101 | $3.4M | 0.86% | 67,500 | SH |
| 46 | STRUCTURE THERAPEUTICS INC | GPCR | 86366E106 | $3.2M | 0.81% | 66,864 | SH |
| 47 | COSTAR GROUP INC | CSGP | 22160N109 | $3.1M | 0.79% | 77,500 | SH |
| 48 | TRANSUNION | TRU | 89400J107 | $3.1M | 0.78% | 44,595 | SH |
| 49 | IDEAYA BIOSCIENCES INC | IDYA | 45166A102 | $3.1M | 0.77% | 91,637 | SH |
| 50 | ARCUS BIOSCIENCES INC | RCUS | 03969F109 | $2.9M | 0.73% | 134,217 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 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 |