Generalist · Chicago, IL
William Blair Investment Management
Q4 2025 · compared with Q3 2025
Filed as William Blair Investment Management, LLC
- Software
- $5.4B
- Weight of 13F
- 15.1%
- Names
- 37
- Net bought
- +$1.6B
Filed 9 February 2026 · SEC filing.
412 positions in the whole 13F.
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.
Software held
- MicrosoftMSFT3,490,302 shares · 31.4% of their software · price −$120M$1.7B−$179M
- ServiceNowNOW2,148,780 shares · 6.1% of their software · price −$1.6B$329M+$1.6B
- SnowflakeSNOW1,346,998 shares · 5.5% of their software · price −$8.3M$295M+$187M
- IntuitINTU442,391 shares · 5.5% of their software · price −$9.1M$293M−$30.6M
- OracleORCL1,256,536 shares · 4.6% of their software · price −$108M$245M+$41.9M
- DoximityDOCS5,456,985 shares · 4.5% of their software · price −$158M$242M−$27.2M
- Tyler TechnologiesTYL495,297 shares · 4.2% of their software · price −$34.3M$225M+$18.9M
- VeevaVEEV881,223 shares · 3.7% of their software · price −$65.8M$197M+$39.5M
- Q2QTWO2,694,718 shares · 3.6% of their software · price −$620K$194M+$40.1M
- WaystarWAY5,282,220 shares · 3.2% of their software · price −$27.3M$173MFlat
- AppFolioAPPF638,241 shares · 2.8% of their software · price −$27.5M$148M+$23.8M
- Clearwater AnalyticsCWAN5,880,506 shares · 2.6% of their software$142M—
- F5, Inc.FFIV550,264 shares · 2.6% of their software · price −$37.4M$140MNew · +$178M
- DynatraceDT3,215,853 shares · 2.6% of their software · price −$16.4M$139M−$8.8M
- Diebold Nixdorf, IncorporatedDBD1,802,571 shares · 2.3% of their software · price +$19.6M$122MFlat
- Manhattan AssociatesMANH660,294 shares · 2.1% of their software · price −$20.9M$114M−$18.0M
- Grab Holdings LimitedGRAB22,676,283 shares · 2.1% of their software · price −$23.4M$113M−$9.6M
- Bentley SystemsBSY2,615,173 shares · 1.9% of their software · price −$34.8M$99.8M−$16.3M
- VeriskVRSK399,551 shares · 1.7% of their software · price −$11.1M$89.4MNew · +$100M
- GuidewireGWRE358,328 shares · 1.3% of their software · price −$10.3M$72.0M−$10.9M
- Agilysys, Inc.AGYS572,600 shares · 1.3% of their software · price +$7.8M$68.0M+$671K
- PDF Solutions, Inc.PDFS1,358,481 shares · 0.7% of their software · price +$3.7M$38.8MFlat
- Zeta GlobalZETA1,517,433 shares · 0.6% of their software · price +$728K$30.9M+$2.4M
- Sportradar Group AGSRAD1,118,791 shares · 0.5% of their software · price −$3.5M$26.6M−$1.5M
- Palo Alto NetworksPANW136,848 shares · 0.5% of their software · price −$2.7M$25.2M+$8.8M
- VertexVERX1,215,172 shares · 0.5% of their software · price −$5.9M$24.3M+$8.9M
- Donnelley Financial Solutions, Inc.DFIN518,833 shares · 0.5% of their software · price −$2.5M$24.2M+$2.1M
- DescartesDSGX204,931 shares · 0.3% of their software · price −$1.3M$18.0M+$5.0M
- PaymentusPAY510,498 shares · 0.3% of their software · price +$505K$16.1MNew · +$15.6M
- i3 Verticals, Inc.IIIV386,385 shares · 0.2% of their software · price −$2.8M$9.7MNew · +$12.5M
- Cellebrite DI Ltd.CLBT474,015 shares · 0.2% of their software$8.5MFlat
- SalesforceCRM28,947 shares · 0.1% of their software · price +$808K$7.7M−$128M
- Uber Technologies, Inc.UBER54,535 shares · 0.1% of their software · price −$887K$4.5M−$254M
- SAPSAP8,417 shares · 0.0% of their software$2.0MFlat
- ShopifySHOP10,764 shares · 0.0% of their software$1.7MFlat
- DatadogDDOG5,721 shares · 0.0% of their software$778KFlat
- WEX Inc.WEX2,857 shares · 0.0% of their software$426KFlat
