Institutional Manager · CIK 0001256071
PLATINUM INVESTMENT MANAGEMENT LTD
SYDNEY AUSTRALIA 2000, C3 · File #028-14358
Latest AUM
$432.7M
Positions
124
Top-10 Concentration
44.1%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | MICRON TECHNOLOGY INC | MU | -445,371 | -$127.1M | +$55.5M |
| REDUCE | ALPHABET INC | GOOG | -365,253 | -$114.3M | +$26.6M |
| REDUCE | MERCK & CO INC | MRK | -875,470 | -$92.2M | +$20.0M |
| REDUCE | INTERCONTINENTAL EXCHANGE IN | 45866F104 | -563,688 | -$91.3M | -$3.9M |
| REDUCE | LAM RESEARCH CORP | LRCX | -519,524 | -$88.9M | +$21.4M |
| REDUCE | JOHNSON & JOHNSON | JNJ | -399,147 | -$82.6M | +$9.2M |
| REDUCE | ABBVIE INC | ABBV | -340,057 | -$77.7M | -$1.1M |
| REDUCE | IQVIA HLDGS INC | IQV | -340,977 | -$76.9M | +$13.0M |
| REDUCE | BROADCOM INC | AVGO | -182,187 | -$63.1M | +$3.4M |
| REDUCE | ADOBE INC | ADBE | -177,174 | -$62.0M | -$527,209 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025124 pos · $432.7M
- 13F HOLDINGS REPORTQ/E Sep 2025120 pos · $1.55B
- 13F HOLDINGS REPORTQ/E Jun 2025115 pos · $1.50B
- 13F HOLDINGS REPORTQ/E Mar 2025115 pos · $1.73B
- 13F HOLDINGS REPORTQ/E Dec 2024115 pos · $1.70B
- 13F HOLDINGS REPORTQ/E Sep 2024122 pos · $2.21B
- 13F HOLDINGS REPORTQ/E Jun 2024134 pos · $2.47B
- 13F HOLDINGS REPORTQ/E Mar 2024139 pos · $2.48B
- 13F HOLDINGS REPORTQ/E Dec 2023144 pos · $2.56B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ZTO EXPRESS CAYMAN INC | ZTOEF | 1,994,127 | $41.7M | 11.60% |
| 2 | TRIP COM GROUP LTD | TRPCF | 443,718 | $31.9M | 8.89% |
| 3 | DINGDONG CAYMAN LTD | DDL | 6,460,889 | $16.1M | 4.48% |
| 4 | ALPHABET INC | GOOG | 36,843 | $11.6M | 3.22% |
| 5 | BROADCOM INC | AVGO | 30,874 | $10.7M | 2.98% |
| 6 | NOAH HLDGS LTD | NOAH | 1,058,912 | $10.6M | 2.96% |
| 7 | BIRKENSTOCK HOLDING PLC | BIRK | 247,600 | $10.1M | 2.82% |
| 8 | LAM RESEARCH CORP | LRCX | 55,845 | $9.6M | 2.66% |
| 9 | PDD HOLDINGS INC | PDD | 78,445 | $8.9M | 2.48% |
| 10 | AMAZON COM INC | AMZN | 31,080 | $7.2M | 2.00% |
| 11 | MICRON TECHNOLOGY INC | MU | 24,920 | $7.1M | 1.98% |
| 12 | ABBVIE INC | ABBV | 30,102 | $6.9M | 1.92% |
| 13 | MERCK & CO INC | MRK | 63,316 | $6.7M | 1.86% |
| 14 | FAIR ISAAC CORP | FICO | 3,859 | $6.5M | 1.82% |
| 15 | STRUCTURE THERAPEUTICS INC | GPCR | 87,874 | $6.1M | 1.70% |
| 16 | VERA THERAPEUTICS INC | VERA | 119,384 | $6.0M | 1.68% |
| 17 | YUM BRANDS INC | YUM | 39,847 | $6.0M | 1.68% |
| 18 | IQVIA HLDGS INC | IQV | 26,708 | $6.0M | 1.68% |
| 19 | AMER SPORTS INC | AS | 160,000 | $6.0M | 1.66% |
| 20 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 89,484 | $5.9M | 1.65% |