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Institutional

PLATINUM INVESTMENT MANAGEMENT LTD

CIK 0001256071
$396.8M
Reported AUM
89
Positions
Q1 2026
Period
2026-05-14
Filed

The Brief · PLATINUM INVESTMENT MANAGEMENT LTD · Q1 2026

AI · grounded in 13F

PLATINUM INVESTMENT MANAGEMENT LTD closed its position in AMZN, reducing exposure by $7.17M. The fund established new positions in AZN for $9.32M and NFLX for $4.81M. Other notable activity includes closing out UBER for $5.17M and increasing its stake in CAT by 54.55%.

Portfolio · Q1 2026

ZTO$50.2MTCOMDDLLRCXBIRKNOAHAZNAVGOPDDMUOther$233.3MPL

Top holdings

QoQ vs Q4 2025

#StockIssuerPriceDay %1Y Gr.5Y Gr.Value% of bookΔ shares (QoQ)Status
1ZTOZTO EXPRESS CAYMAN INC$22.28-1.02%32.14%-8.55%$50.2M12.65%HELD
2TCOMTRIP COM GROUP LTD$47.69-0.77%-21.32%84.81%$18.9M4.77%64,000−14.4%
3DDLDINGDONG CAYMAN LTD$2.45-2.00%20.10%-90.13%$16.7M4.20%+25,618+0.4%
4LRCXLAM RESEARCH CORP$303.28-9.85%253.80%400.87%$9.9M2.50%9,406−16.8%
5BIRKBIRKENSTOCK HOLDING PLC$42.34-1.51%-22.68%-8.26%$9.9M2.48%+27,400+11.1%
6NOAHNOAH HLDGS LTD$10.30-1.34%-0.06%-61.92%$9.8M2.48%65,300−6.2%
7AZNASTRAZENECA PLC$185.952.28%29.80%80.46%$9.3M2.35%+48,088NEW
8AVGOBROADCOM INC$385.73-7.92%57.48%771.51%$8.1M2.04%4,688−15.2%
9PDDPDD HOLDINGS INC$85.07-0.94%-15.44%-7.14%$8.0M2.02%HELD
10MUMICRON TECHNOLOGY INC$864.01-13.25%697.79%1041.92%$8.0M2.01%1,264−5.1%
11MRKMERCK & CO INC$120.790.44%58.51%82.35%$7.6M1.92%HELD
12GOOGALPHABET INC$365.76-0.95%109.82%172.71%$7.1M1.78%12,251−33.3%
13JNJJOHNSON & JOHNSON$232.772.02%53.90%55.59%$6.8M1.71%HELD
14ABBVABBVIE INC$227.231.02%23.60%135.68%$6.5M1.65%HELD
15YUMYUM BRANDS INC$150.871.88%6.17%26.11%$6.2M1.56%HELD
16CATCATERPILLAR INC$904.28-3.85%158.69%378.33%$6.0M1.52%+3,000+54.5%
17HTHTH WORLD GROUP LTD$45.000.54%34.41%14.45%$5.9M1.50%HELD
18430TERNS PHARMACEUTICALS INC$5.8M1.47%HELD
19RCIROGERS COMMUNICATIONS INC$37.63-1.08%46.22%-13.03%$5.6M1.42%HELD
20CNTACENTESSA PHARMACEUTICALS PLC$39.62-0.45%232.38%91.96%$5.5M1.38%17,360−11.2%
21ZTSZOETIS INC$79.44-0.10%-52.59%-58.78%$5.0M1.25%HELD
22ASAMER SPORTS INC$34.10-1.13%-9.12%108.95%$4.9M1.24%10,000−6.3%
23NVDANVIDIA CORPORATION$205.10-6.20%44.92%955.49%$4.9M1.24%HELD
24APGEAPOGEE THERAPEUTICS INC$86.92-4.38%112.10%278.90%$4.9M1.24%10,898−15.7%
25NFLXNETFLIX INC.$82.180.76%-33.80%58.78%$4.8M1.21%+50,023NEW
26CCJCAMECO CORP$103.44-9.28%71.53%488.33%$4.6M1.16%HELD
27VERAVERA THERAPEUTICS INC$32.29-3.27%42.25%79.39%$4.6M1.15%5,697−4.8%
28IQVIQVIA HLDGS INC$183.45-1.84%20.44%-25.94%$4.6M1.15%HELD
29VVISA INC$323.571.06%-11.91%36.33%$4.5M1.14%+300+2.0%
30IMVTIMMUNOVANT INC$31.11-4.78%85.51%197.42%$4.5M1.14%HELD
31ADBEADOBE INC$251.44-2.70%$4.5M1.14%+4,725+34.1%
32VALVALARIS LTD$88.54-4.70%$4.5M1.14%HELD
33UBSUBS GROUP AG$47.01-1.38%$4.5M1.13%HELD
34KRKROGER CO$63.572.14%$4.4M1.11%5,923−8.9%
35ELFE L F BEAUTY INC$49.57-3.64%$4.4M1.11%+30,500+72.6%
36COGTCOGENT BIOSCIENCES INC$31.02-5.40%$4.3M1.09%9,163−7.6%
37ARWRARROWHEAD PHARMACEUTICALS IN$73.09-2.75%$4.1M1.02%24,732−27.6%
38HDHOME DEPOT INC$310.780.27%$3.8M0.95%1,800−13.5%
39ICEINTERCONTINENTAL EXCHANGE IN$141.50-0.39%$3.8M0.95%7,943−24.9%
40ADCTADC THERAPEUTICS SA$1.03-21.97%$3.7M0.94%HELD
41BBIOBRIDGEBIO PHARMA INC$67.610.42%$3.7M0.92%+1,513+3.2%
42CAVACAVA GROUP INC$72.601.18%$3.6M0.92%+7,500+20.0%
43FICOFAIR ISAAC CORP$1137.33-2.52%$3.6M0.91%459−11.9%
44GOOGLALPHABET INC$368.53-0.98%$3.5M0.87%4,000−25.0%
45FNDFLOOR & DECOR HLDGS INC$47.41-3.05%$3.4M0.86%1,400−2.0%
46GPCRSTRUCTURE THERAPEUTICS INC$37.58-3.79%$3.2M0.81%21,010−23.9%
47CSGPCOSTAR GROUP INC$33.890.68%$3.1M0.79%+12,500+19.2%
48TRUTRANSUNION$70.660.07%$3.1M0.78%HELD
49IDYAIDEAYA BIOSCIENCES INC$28.29-3.18%$3.1M0.77%28,967−24.0%
50RCUSARCUS BIOSCIENCES INC$23.19-6.08%$2.9M0.73%HELD
51METAMETA PLATFORMS INC$593.00-5.51%$2.9M0.72%2,000−28.6%
52MAMASTERCARD INCORPORATED$491.081.93%$2.8M0.72%HELD
53MSIMOTOROLA SOLUTIONS INC$410.34-0.09%$2.7M0.69%+2,027+47.4%
54GEVGE VERNOVA INC$933.61-3.09%$2.7M0.67%HELD
55BROSDUTCH BROS INC$55.52-0.72%$2.7M0.67%+15,000+40.0%
56ZYMEZYMEWORKS INC$24.04-4.22%$2.6M0.66%HELD
57ROIVROIVANT SCIENCES LTD$28.58-3.22%$2.6M0.65%96,749−51.2%
58VRTVERTIV HOLDINGS CO$300.51-7.23%$2.5M0.64%1,918−15.9%
59ISRGINTUITIVE SURGICAL INC$422.060.77%$2.2M0.56%HELD
60PALIPALISADE BIO INC$1.74-9.84%$2.2M0.54%+567,327+85.4%
61KLACKLA CORP$1929.20-9.47%$2.1M0.54%581−28.5%
62BKNGBOOKING HOLDINGS INC$165.84-0.99%$2.1M0.53%+300+150.0%
63RVMDREVOLUTION MEDICINES INC$149.23-4.15%$2.0M0.51%+2,161+11.6%
64PRQRPROQR THRAPEUTICS N V$1.50-1.96%$2.0M0.50%HELD
65WVEWAVE LIFE SCIENCES LTD$5.73-5.91%$2.0M0.50%+44,582+19.3%
66VEEVVEEVA SYS INC$172.61-3.35%$2.0M0.49%HELD
67WINGWINGSTOP INC$142.23-1.56%$1.9M0.47%+4,000+50.0%
68IDXXIDEXX LABS INC$562.16-0.46%$1.7M0.42%HELD
69MSFTMICROSOFT CORP$416.67-2.66%$1.5M0.39%4,439−51.8%
70AMDADVANCED MICRO DEVICES INC$466.38-10.86%$1.5M0.37%HELD
71SATSECHOSTAR CORP$116.28-6.71%$1.5M0.37%+12,509NEW
72DRUGBRIGHT MINDS BIOSCIENCES INC$69.00-7.38%$1.4M0.35%2,603−12.0%
73STOKSTOKE THERAPEUTICS INC$30.01-0.37%$1.3M0.33%HELD
74DFTXDEFINIUM THERAPEUTICS INC$23.55-4.23%$1.3M0.33%+70,000NEW
75MBXMBX BIOSCIENCES INC$30.28-2.04%$1.3M0.33%HELD
76APHAMPHENOL CORP$138.81-5.42%$1.2M0.30%+9,440NEW
77BSXBOSTON SCIENTIFIC CORP$48.55-0.61%$1.1M0.28%1,727−8.8%
78CCCCC4 THERAPEUTICS INC$3.85-7.67%$1.0M0.26%+384,766NEW
79GSATGLOBALSTAR INC$81.49-1.40%$941K0.24%+14,168NEW
80BCYCBICYCLE THERAPEUTICS PLC$4.20-1.64%$857K0.22%HELD
81JDJD.COM INC$28.88-1.06%$847K0.21%2,203−7.1%
82MGTXMEIRAGTX HLDGS PLC$9.00-5.96%$813K0.21%HELD
83MODMODINE MFG CO$276.51-8.20%$787K0.20%13,822−79.2%
84ARVNARVINAS INC$7.42-4.13%$769K0.19%HELD
85AURAAURA BIOSCIENCES INC$6.63-2.50%$748K0.19%HELD
86ABSIABSCI CORPORATION$6.40-12.81%$713K0.18%HELD
87BABAALIBABA GROUP HLDG LTD$121.06-3.88%$537K0.14%1,050−19.7%
88CDXSCODEXIS INC$2.56-8.57%$431K0.11%HELD
89SKYESKYE BIOSCIENCE INC$0.73-5.42%$143K0.04%HELD
90AMZNAMAZON COM INC$246.03-3.06%31,080EXITED
91UBERUBER TECHNOLOGIES INC$70.71-2.08%63,217EXITED
92WWWWOLVERINE WORLD WIDE INC$15.90-0.19%200,000EXITED
93GOSSGOSSAMER BIO INC$0.17-1.69%561,951EXITED
94ANETARISTA NETWORKS INC$154.27-7.07%12,456EXITED
95SHOPSHOPIFY INC$109.54-5.60%8,161EXITED
96PSIXPOWER SOLUTIONS INTL INC$37.61-6.40%20,000EXITED
97CPNGCOUPANG INC$15.15-8.35%47,735EXITED
98BRD1EURMIND MEDICINE MINDMED INC70,000EXITED
99MICCMAGNUM ICE CREAM CO NV$17.070.23%21,682EXITED
100PONYPONY AI INC$8.62-9.83%16,552EXITED
101INTCINTEL CORP5,453EXITED
102PBR/APETROLEO BRASILEIRO SA PETRO16,148EXITED
103BCCBOISE CASCADE CO DEL1,403EXITED
104LBRDKLIBERTY BROADBAND CORP2,060EXITED
105JAZZJAZZ PHARMACEUTICALS PLC452EXITED
106OMFONEMAIN HLDGS INC1,091EXITED
107GTGOODYEAR TIRE & RUBR CO8,244EXITED
108HUNHUNTSMAN CORP6,761EXITED
109CLBCORE LABORATORIES INC4,196EXITED
110MTDRMATADOR RES CO1,573EXITED
111VISTVISTA ENERGY S.A.B. DE C.V.1,370EXITED
112UNHUNITEDHEALTH GROUP INC201EXITED
113WHRWHIRLPOOL CORP919EXITED
114CVSCVS HEALTH CORP830EXITED
115TGTTARGET CORP673EXITED
116DOWDOW INC2,798EXITED
117CPBTHE CAMPBELLS COMPANY2,301EXITED
118FUTUFUTU HLDGS LTD390EXITED
119CITHE CIGNA GROUP228EXITED
120UHSUNIVERSAL HLTH SVCS INC285EXITED
121ALSNALLISON TRANSMISSION HLDGS I632EXITED
122GISGENERAL MLS INC1,302EXITED
123LYBLYONDELLBASELL INDUSTRIES N1,378EXITED
124HPQHP INC2,669EXITED
125BBYBEST BUY INC853EXITED
126NENOBLE CORP PLC1,965EXITED
127HLFHERBALIFE LTD3,783EXITED
128JXNJACKSON FINANCIAL INC342EXITED
129GLGLOBE LIFE INC245EXITED
130ECECOPETROL S A3,107EXITED
131MOMOHELLO GROUP INC4,047EXITED

Source: SEC EDGAR · accession 0001256071-26-000005. 13F discloses long positions only — shorts, foreign equities, and options are excluded.