PRIMECAP Management

PRIMECAP Management

PRIMECAP Management is a significant player in the investment management space, known for its strategic approach to portfolio management. The firm has a diverse portfolio, with notable positions in sectors like Technology and Healthcare, as evidenced by its recent disclosures. As of May 11, 2026, PRIMECAP's disclosed trading record shows a range of $3.6B to $8.5B, highlighting a pattern of position increases and reductions across various companies, including Astrazeneca PLC and Microsoft Corp.

Biggest Wins

PositionReported PriceLast PriceEst. P/LReturnEst. Value
Marqeta, Inc.MQ · Q1 2026$4.08$17.89+$2M+338.5%$3M
MaxLinear, Inc.MXL · Q1 2026$17.39$74.44+$10M+328.1%$13M
BlackBerry LimitedBB · Q1 2026$3.24$10.64+$21M+228.4%$31M
DuPont de Nemours, Inc. (Exchanged) International Flavors & Fragrances Inc. (Received)DD · Q1 2026$45.80$134.86+$178M+194.5%$269M
Micron Technology, Inc.MU · Q1 2026$337.84$970.82+$14B+187.4%$21B
Advanced Micro Devices IncAMD · Q1 2026$203.43$544.43+$358M+167.6%$571M
Sandisk CorporationSNDK · Q1 2026$635.34$1,589.40+$382k+150.2%$636k
Xometry, Inc.XMTR · Q1 2026$40.84$98.68+$376M+141.6%$641M
CREDO TECH GROUP HOLDING LTDCRDO · Q1 2026$93.87$226.74+$8M+141.5%$14M
Intel CorpINTC · Q1 2026$44.13$105.45+$5B+139%$8B
Dell Technologies IncDELL · Q1 2026$164.13$381.71+$82M+132.6%$143M
Humana Inc.HUM · Q1 2026$173.39$398.42+$23M+129.8%$40M
Palo Alto Networks, Inc.PANW · Q1 2026$160.32$342.15+$188M+113.4%$354M
Seagate Technology Holdings plcSTX · Q1 2026$391.76$802.45+$95M+104.8%$185M
Marvell Technology, Inc.MRVL · Q1 2026$99.05$194.94+$285M+96.8%$580M
Zentalis Pharmaceuticals, Inc.ZNTL · Q1 2026$2.34$4.57+$2M+95.3%$4M
Flex LtdFLEX · Q1 2026$65.46$127.39+$2B+94.6%$3B
Hewlett Packard Enterprise CompanyHPE · Q1 2026$23.81$45.90+$381M+92.8%$791M
Western Digital CorpWDC · Q1 2026$270.49$502.08+$134M+85.6%$290M
RXO, Inc.RXO · Q1 2026$14.62$27.07+$8M+85.2%$16M
Health Catalyst, Inc.HCAT · Q1 2026$1.27$2.28+$344k+79.5%$776k
Frontier Group Holdings, Inc.ULCC · Q1 2026$3.53$6.26+$1M+77.3%$3M
ARM HOLDINGS PLCARM · Q1 2026$151.28$268.11+$27M+77.2%$63M
Cerus CorporationCERS · Q1 2026$1.82$3.21+$1M+76.4%$3M
Synaptics IncorporatedSYNA · Q1 2026$70.04$121.59+$23M+73.6%$55M
NetApp, Inc.NTAP · Q1 2026$102.39$162.10+$541M+58.3%$1B
WillScot Holdings CorporationWSC · Q1 2026$17.36$27.25+$42M+57%$117M
Axcelis Technologies, Inc.ACLS · Q1 2026$93.08$145.01+$34M+55.8%$96M
Bruker Corporation - Common StockBRKR · Q1 2026$36.12$56.17+$17M+55.5%$48M
Unitedhealth Group IncUNH · Q1 2026$270.59$418.52+$28M+54.7%$78M
Applied Materials, Inc.AMAT · Q1 2026$341.79$525.70+$216M+53.8%$617M
Illumina, Inc.ILMN · Q1 2026$123.26$187.15+$132M+51.8%$387M
Newell Brands IncNWL · Q1 2026$3.43$5.16+$13M+50.4%$39M
CVS Health CorpCVS · Q1 2026$71.82$107.43+$85M+49.6%$257M
Aurora Innovation, Inc.AUR · Q1 2026$4.12$6.09+$19M+47.8%$60M
Alkermes plcALKS · Q1 2026$35.36$52.05+$42M+47.2%$132M
GITLAB INCGTLB · Q1 2026$21.64$31.76+$74M+46.7%$232M
Texas Instruments IncTXN · Q1 2026$194.14$284.55+$873M+46.6%$3B
Glaukos CorporationGKOS · Q1 2026$107.66$156.84+$166M+45.7%$529M
American Airlines Group, Inc. (AAl)AAL · Q1 2026$10.74$15.63+$240M+45.5%$766M
Nutanix IncNTNX · Q1 2026$38.01$54.59+$47M+43.6%$154M
Cisco Systems IncCSCO · Q1 2026$77.59$111.10+$162M+43.2%$538M
Perimeter Solutions, Inc.PRM · Q1 2026$24.42$34.85+$17M+42.7%$57M
UNITY SOFTWARE INCU · Q1 2026$21.94$31.27+$2M+42.5%$5M
CarMax IncKMX · Q1 2026$41.58$58.47+$74M+40.6%$255M
Arista Networks IncANET · Q1 2026$122.78$171.92+$786k+40%$3M
SharkNinja, Inc.SN · Q1 2026$105.90$147.82+$6M+39.6%$21M
GRAIL, Inc.GRAL · Q1 2026$51.68$71.96+$37M+39.2%$133M
QUALCOMM IncorporatedQCOM · Q1 2026$128.78$177.98+$35M+38.2%$126M
Mobileye Global Inc.MBLY · Q1 2026$6.87$9.43+$8M+37.3%$30M