William Blair Investment Management

Quarters on file

Each quarter on file, back to June 2016 when the filing exists. Net bought is the share change from the previous quarter at that quarter’s close. A split that leaves the dollar value in place counts as flat.

• Q2 202629 names$3.0B−$683M
• Q1 202632 names$3.3B−$948M
• Q4 202537 names$5.4B+$1.6B
• Q3 202538 names$6.1B−$319M
• Q2 202540 names$6.4B−$442M
• Q1 202543 names$5.8B+$85.3M
• Q4 202438 names$6.4B−$220M
• Q3 202439 names$6.6B−$119M
• Q2 202442 names$6.3B+$145M
• Q1 202439 names$6.3B+$528M
• Q4 202338 names$5.3B+$150M
• Q3 202335 names$4.3B+$102M
• Q2 202333 names$4.4B−$38.9M
• Q1 202333 names$4.0B+$155M
• Q4 202231 names$3.2B+$123M
• Q3 202231 names$3.0B−$65.7M
• Q2 202231 names$3.4B+$240M
• Q1 202242 names$4.0B+$66.5M
• Q4 202135 names$4.6B+$460M
• Q3 202135 names$4.2B+$87.7M
• Q2 202135 names$4.0B+$826M
• Q1 202131 names$3.4B+$553M
• Q4 202029 names$3.2B−$76.8M
• Q3 202028 names$2.6B+$57.6M
• Q2 202028 names$2.4B+$194M
• Q1 202028 names$1.6B−$505M
• Q4 201927 names$2.4B+$30.5M
• Q3 201927 names$2.2B−$107M
• Q2 201924 names$2.4B−$335M
• Q1 201925 names$2.6B+$105M
• Q4 201823 names$1.9B−$733M
• Q3 201824 names$3.1B−$44.1M
• Q2 201826 names$2.7B+$93.1M
• Q1 201823 names$2.3B+$53.8M
• Q4 201721 names$2.0B−$298M
• Q3 201720 names$2.2B−$12.6M
• Q2 201718 names$2.1B−$177M
• Q1 201717 names$2.0B−$91.5M
• Q4 201616 names$1.9B+$159M
• Q3 201616 names$1.7B+$16.2M
• Q2 201617 names$1.7B—

What moved the book

The five software lines with the largest share change this quarter.

• TenableTENB+$69.6M$86.6M
• GuidewireGWRE+$55.2M$258M
• CoStarCSGP−$47.4M$172M
• MicrosoftMSFT+$35.5M$970M
• VaronisVRNS−$34.8M$123M

Software held

• MicrosoftMSFT3,363,154 shares · 23.9% of their software · price +$163M$970M+$35.5M
• Euronet Worldwide, Inc.EEFT2,567,417 shares · 7.1% of their software · price +$45.0M$287M+$3.5M
• NICENICE1,131,024 shares · 6.4% of their software · price +$41.4M$259M+$31.2M
• GuidewireGWRE3,145,395 shares · 6.4% of their software · price +$61.3M$258M+$55.2M
• SalesforceCRM1,047,620 shares · 5.2% of their software · price +$70.4M$209M+$1.5M
• DynatraceDT4,680,207 shares · 4.9% of their software · price +$18.7M$198MFlat
• IntuitINTU394,646 shares · 4.3% of their software · price +$22.3M$176M+$5.2M
• CoStarCSGP2,495,388 shares · 4.2% of their software · price −$21.0M$172M−$47.4M
• PagerDutyPD4,875,088 shares · 4.2% of their software · price +$41.0M$171MFlat
• CertaraCERT7,026,786 shares · 4.2% of their software · price +$56.5M$169M+$4.7M
• Palo Alto NetworksPANW666,529 shares · 3.3% of their software · price +$40.1M$133M+$20.5M
• VeevaVEEV719,931 shares · 3.3% of their software · price +$16.1M$132M+$15.3M
• Alarm.com Holdings, Inc.ALRM2,532,256 shares · 3.1% of their software · price +$2.0M$127M+$2.2M
• VaronisVRNS4,726,462 shares · 3.0% of their software · price +$9.8M$123M−$34.8M
• AdobeADBE296,026 shares · 2.8% of their software · price +$14.5M$114M+$3.4M
• MongoDBMDB385,943 shares · 2.2% of their software · price +$14.0M$90.0MFlat
• TenableTENB1,823,215 shares · 2.1% of their software · price +$17.1M$86.6MNew · +$69.6M
• SynopsysSNPS128,806 shares · 1.2% of their software · price +$8.6M$49.8M+$5.6M
• WorkdayWDAY216,002 shares · 1.1% of their software · price +$8.5M$44.6M−$8.4M
• ProgressPRGS722,256 shares · 1.0% of their software · price +$5.1M$41.5M−$7.3M
• NetScout Systems, Inc.NTCT1,215,223 shares · 0.9% of their software · price −$4.7M$34.8MFlat
• WorkivaWK331,061 shares · 0.8% of their software · price +$6.1M$33.9M+$12.2M
• PDF Solutions, Inc.PDFS784,917 shares · 0.8% of their software · price +$10.9M$33.3M−$1.6M
• AutodeskADSK158,212 shares · 0.8% of their software · price +$3.4M$32.9M−$979K
• Roper Technologies, Inc.ROP69,564 shares · 0.8% of their software · price +$598K$30.7M−$1.1M
• VertexVERX1,101,712 shares · 0.6% of their software · price +$6.8M$22.8M−$3.3M
• Donnelley Financial Solutions, Inc.DFIN502,202 shares · 0.5% of their software · price +$1.1M$20.5MNew · +$19.4M
• JFrogFROG583,828 shares · 0.3% of their software · price −$952K$11.5M+$986K
• Cognyte Software Ltd.CGNT2,978,976 shares · 0.2% of their software · price +$834K$10.1MFlat
• ShopifySHOP110,374 shares · 0.1% of their software · price +$1.5M$5.3MNew · +$3.8M
• CadenceCDNS6,785 shares · 0.0% of their software$1.4MFlat
• Check PointCHKP2,024 shares · 0.0% of their software$263KFlat
• F5, Inc.FFIV1,699 shares · 0.0% of their software$248KFlat