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Platinum Investment Management Ltd

CIK 1256071 · latest 13F filed 13 August 2026 · Read the filing on EDGAR

Platinum Investment Management Ltd reported 85 US-listed holdings worth $406.7 million in its 13F for the quarter ended 30 June 2026, filed 13 August 2026. Its largest: ZTO Express (Cayman) Inc. (11.0%), Micron Technology Inc. (5.0%) and Lam Research Corp. (4.9%). Against the quarter before, it opened 10 positions, added to 8, trimmed 22 and sold out of 14.

Reported holdings$406.7M+2.5% on Q1 2026
Positions85-4 on Q1 2026
The largest ten38.9%of its reported holdings
Latest 13FQ2 2026filed 13 August 2026
Where the money is
HeldTrimmed
ZTO11.0%MU5.0%LRCX4.9%TCOM3.4%DDL3.1%NOAH2.4%AVGO2.4%BIRK2.2%AZN2.2%GOOG2.1%MRK2.0%APGE1.9%ABBV1.9%71 more53.6%

The 14 largest of its 85 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.

Reported holdings, quarter by quarter
Q3 2024: $2.21 billion in 122 positions$2.21BQ3 24Q4 2024: $1.70 billion in 115 positions$1.70BQ4 24Q1 2025: $1.73 billion in 115 positions$1.73BQ1 25Q2 2025: $1.50 billion in 115 positions$1.50BQ2 25Q3 2025: $1.55 billion in 120 positions$1.55BQ3 25Q4 2025: $432.7 million in 124 positions$433MQ4 25Q1 2026: $396.8 million in 89 positions$397MQ1 26Q2 2026: $406.7 million in 85 positions$407MQ2 26

What the fund reported holding at each quarter's end; hover a bar for the number of positions

What its reported holdings returned

Held through each quarter, the holdings it reported returned +34.8% over the 7 quarters to 30 June 2026, against +30.2% for the S&P 500.

Its reported holdingsThe S&P 500
90105120135Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Its holdings +34.8%S&P 500 +30.2%

Not the fund's own return: each 13F's holdings are kept unchanged until the next one, so trades inside a quarter, dividends, cash and fees are left out. A rough guide to how its picks have done over time.

What it did on the quarter

Opened 10Added 8Held 45Trimmed 22Sold out 14
Opened: 10Added: 8Held: 45Trimmed: 22Sold out: 14

Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held

Opened 10

  1. Datadog, Inc. DDOG$3.1 million
  2. Analog Devices Inc. ADI$2.2 million
  3. ServiceNow, Inc. NOW$2.0 million
  4. DoorDash, Inc. DASH$1.8 million
  5. Palo Alto Networks Inc. PANW$1.6 million
  6. M-Tron Inds Inc. MPTI$1.3 million
  7. A10 Networks, Inc. ATEN$1.1 million
  8. Block, Inc. XYZ$950,000

and 2 more in the table below

Added to 8

  1. Ideaya Biosciences, Inc. IDYA+47,071 shares · +51%
  2. Cogent Biosciences Inc. COGT+42,154 shares · +38%
  3. EchoStar Corp. ECHO+15,000 shares · +120%
  4. Structure Therapeutics Inc. GPCR+23,499 shares · +35%
  5. Kroger Co. KR+20,562 shares · +34%
  6. Palisade Bio Inc. PALI+499,452 shares · +41%
  7. Wingstop Inc. WING+5,000 shares · +42%
  8. Meta Platforms, Inc. META+1,500 shares · +30%

Trimmed 22

  1. Micron Technology Inc. MU-5,874 shares · -25%
  2. Caterpillar Inc. CAT-4,000 shares · -47%
  3. Birkenstock Holding plc BIRK-65,000 shares · -24%
  4. Zoetis Inc. ZTS-32,000 shares · -76%
  5. e.l.f. Beauty, Inc. ELF-27,500 shares · -38%
  6. Netflix Inc. NFLX-20,023 shares · -40%
  7. Immunovant Inc. IMVT-37,103 shares · -20%
  8. Trip.com Group Limited TCOM-27,797 shares · -7%

and 14 more in the table below

Sold out of 14

  1. Terns Pharmaceuticals Inc. TERN$5.8 million last quarter
  2. Centessa Pharmaceuticals PLC CNTA$5.5 million last quarter
  3. Alphabet Inc. GOOGL$3.5 million last quarter
  4. Mastercard Inc. MA$2.8 million last quarter
  5. Intuitive Surgical Inc. ISRG$2.2 million last quarter
  6. Veeva Systems Inc. VEEV$2.0 million last quarter
  7. Microsoft Corp. MSFT$1.5 million last quarter
  8. Amphenol Corp. APH$1.2 million last quarter

What it holds

CompanySharesValueOf its bookChange in shares
ZTO Express (Cayman) Inc. ZTO2.0M$44.6 million10.97%no change
Micron Technology Inc. MU17.8K$20.5 million5.05%-5.9K
Lam Research Corp. LRCX46.4K$20.1 million4.95%no change
Trip.com Group Limited TCOM351.9K$14.0 million3.45%-27.8K
Dingdong Cayman Ltd DDL6.5M$12.5 million3.08%no change
Noah Hldgs Ltd NOAH993.6K$9.9 million2.44%no change
Broadcom Inc. AVGO26.2K$9.9 million2.43%no change
Birkenstock Holding plc BIRK210.0K$9.0 million2.22%-65.0K
AstraZeneca PLC AZN48.1K$9.0 million2.21%no change
Alphabet Inc. GOOG24.6K$8.7 million2.14%no change
Merck & Co., Inc. MRK63.3K$8.1 million2.00%no change
Apogee Therapeutics Inc. APGE58.3K$7.7 million1.90%no change
AbbVie Inc. ABBV30.1K$7.6 million1.86%no change
Johnson & Johnson JNJ27.8K$7.1 million1.74%no change
Yum! Brands, Inc. YUM39.8K$6.4 million1.57%no change
PDD Holdings Inc. PDD78.4K$6.0 million1.47%no change
Cogent Biosciences Inc. COGT154.2K$6.0 million1.47%+42.2K
UBS Group AG UBS117.5K$5.8 million1.43%no change
NVIDIA Corp. NVDA28.2K$5.6 million1.39%no change
Immunovant Inc. IMVT144.7K$5.6 million1.37%-37.1K
Arrowhead Pharmaceuticals, Inc. ARWR64.8K$5.3 million1.30%no change
Ideaya Biosciences, Inc. IDYA138.7K$5.2 million1.27%+47.1K
IQVIA Holdings Inc. IQV26.7K$5.2 million1.27%no change
H World Group Ltd HTHT118.0K$4.9 million1.21%no change
Vera Therapeutics Inc. VERA113.7K$4.9 million1.20%no change
Structure Therapeutics Inc. GPCR90.4K$4.8 million1.19%+23.5K
Visa Inc. V14.0K$4.8 million1.18%-1.0K
Caterpillar Inc. CAT4.5K$4.8 million1.18%-4.0K
Rogers Communications Inc. RCI147.2K$4.8 million1.18%no change
Amer Sports Inc. AS140.0K$4.7 million1.16%-10.0K
Kroger Co. KR81.3K$4.5 million1.11%+20.6K
KLA Corp. KLAC14.6K$4.4 million1.08%no change
Cameco Corp. CCJ42.4K$4.3 million1.06%no change
Advanced Micro Devices Inc. AMD7.2K$4.2 million1.03%no change
Arcus Biosciences, Inc. RCUS134.2K$4.1 million1.02%no change
Adobe Inc. ADBE18.6K$3.8 million0.94%no change
Floor & Decor Holdings, Inc. FND62.5K$3.7 million0.91%-5.0K
Meta Platforms, Inc. META6.5K$3.7 million0.90%+1.5K
Palisade Bio Inc. PALI1.7M$3.6 million0.89%+499.5K
Dutch Bros Inc. BROS50.0K$3.6 million0.88%-2.5K
Fair Isaac Corp. FICO3.0K$3.6 million0.88%-400
GE Vernova Inc. GEV3.0K$3.6 million0.88%no change
Home Depot, Inc. HD10.0K$3.5 million0.87%-1.5K
Valaris Ltd. VAL46.0K$3.3 million0.82%no change
e.l.f. Beauty, Inc. ELF45.0K$3.3 million0.82%-27.5K
Cava Group, Inc. CAVA42.0K$3.3 million0.81%-3.0K
Definium Therapeutics Inc. DFTX70.0K$3.3 million0.81%no change
Roivant Sciences Ltd. ROIV92.4K$3.3 million0.80%no change
TransUnion TRU44.6K$3.2 million0.79%no change
Revolution Medicines, Inc. RVMD17.0K$3.2 million0.78%-3.8K
Datadog, Inc. DDOG12.0K$3.1 million0.77%new
BridgeBio Pharma, Inc. BBIO39.7K$3.0 million0.73%-9.5K
Wingstop Inc. WING17.0K$2.9 million0.72%+5.0K
Intercontinental Exchange, Inc. ICE23.9K$2.9 million0.72%no change
EchoStar Corp. ECHO27.5K$2.8 million0.69%+15.0K
Vertiv Holdings Co. VRT8.3K$2.8 million0.68%-1.8K
Absci Corp. ABSI237.8K$2.8 million0.68%no change
Zymeworks Inc. ZYME105.2K$2.7 million0.68%no change
Motorola Solutions, Inc. MSI6.3K$2.6 million0.64%no change
MBX Biosciences Inc. MBX43.6K$2.4 million0.59%no change
Booking Holdings Inc. BKNG12.5K$2.2 million0.55%no change
Analog Devices Inc. ADI5.5K$2.2 million0.54%new
Proqr Thrapeutics N V PRQR1.2M$2.2 million0.53%-76.1K
Netflix Inc. NFLX30.0K$2.1 million0.53%-20.0K
ServiceNow, Inc. NOW20.0K$2.0 million0.49%new
DoorDash, Inc. DASH10.0K$1.8 million0.45%new
C4 Therapeutics Inc. CCCC384.8K$1.8 million0.44%no change
Palo Alto Networks Inc. PANW4.8K$1.6 million0.40%new
Wave Life Sciences, Inc. WVE275.3K$1.6 million0.39%no change
IDEXX Laboratories Inc. IDXX2.9K$1.5 million0.38%-100
Bright Minds Biosciences Inc. DRUG19.1K$1.3 million0.33%no change
Stoke Therapeutics, Inc. STOK40.8K$1.3 million0.33%no change
M-Tron Inds Inc. MPTI12.8K$1.3 million0.31%new
Costar Group, Inc. CSGP40.0K$1.1 million0.28%-37.5K
A10 Networks, Inc. ATEN28.6K$1.1 million0.26%new
Block, Inc. XYZ12.5K$950,0000.23%new
Aura Biosciences Inc. AURA111.9K$794,2420.20%no change
JD.com, Inc. JD28.6K$730,0020.18%no change
Zoetis Inc. ZTS10.0K$718,6000.18%-32.0K
S&P Global Inc. SPGI1.7K$686,2330.17%new
Auven Therapeutics Management ADCT581.6K$622,3220.15%-409.2K
Codexis Inc. CDXS264.5K$597,6890.15%no change
Inhibrx Biosciences, Inc. INBX6.1K$582,3340.14%new
Alibaba Group Holding Limited BABA4.3K$411,0820.10%no change
Skye Bioscience Inc. SKYE233.1K$161,6050.04%no change
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
Read moreChange is shares against its 13F for the quarter before; the 14 it sold out of are in the box above.