Vault-13

DISCIPLINED GROWTH INVESTORS INC /MN

MINNEAPOLIS, MN · CIK 1050442 · 13F filing filed 2026-08-14

SEC-registered investment adviser since 1996 · corporation

$5.9bn reported value +20.9% vs Q1 2026
58positions
49.4%in top 10
3 new 27 added 27 reduced 6 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#SecurityTickerShares Value% of portfolioChangeShares change
1 PLEXUS CORP COM PLXS PLXS 1,440,935 $433.2m7.34% 7.34% ReducedShares held: Q3 2025 1.6m, Q4 2025 1.6m, Q1 2026 1.5m, Q2 2026 1.4m -53.7k -53,684 -3.6%
2 VIASAT INC COM VSAT VSAT 4,741,812 $425.9m7.21% 7.21% ReducedShares held: Q3 2025 5.7m, Q4 2025 5.9m, Q1 2026 5.7m, Q2 2026 4.7m -918.9k -918,876 -16.2%
3 PURE STORAGE INC CL A P P 4,646,725 $366.1m6.20% 6.20% ReducedShares held: Q3 2025 5.2m, Q4 2025 4.9m, Q1 2026 4.7m, Q2 2026 4.6m -20.1k -20,052 -0.4%
4 GARMIN LTD SHS GRMN GRMN 1,326,832 $315.2m5.34% 5.34% ReducedShares held: Q3 2025 1.4m, Q4 2025 1.4m, Q1 2026 1.3m, Q2 2026 1.3m -4.6k -4,609 -0.3%
5 ARISTA NETWORKS INC COM SHS ANET ANET 1,788,304 $303.8m5.14% 5.14% ReducedShares held: Q3 2025 1.9m, Q4 2025 1.9m, Q1 2026 1.8m, Q2 2026 1.8m -22.7k -22,689 -1.2%
6 COGNEX CORP COM CGNX CGNX 4,139,715 $299.8m5.08% 5.08% ReducedShares held: Q3 2025 4.6m, Q4 2025 4.7m, Q1 2026 4.3m, Q2 2026 4.1m -182.4k -182,360 -4.2%
7 EXPAND ENERGY CORPORATION COM EXE EXE 2,346,927 $214.0m3.62% 3.62% ReducedShares held: Q3 2025 2.5m, Q4 2025 2.5m, Q1 2026 2.4m, Q2 2026 2.3m -26.4k -26,375 -1.1%
8 PROTO LABS INC COM PRLB PRLB 2,380,514 $194.0m3.29% 3.29% ReducedShares held: Q3 2025 2.6m, Q4 2025 2.7m, Q1 2026 2.5m, Q2 2026 2.4m -116.8k -116,841 -4.7%
9 AKAMAI TECHNOLOGIES INC COM AKAM AKAM 1,635,207 $193.3m3.27% 3.27% ReducedShares held: Q3 2025 1.7m, Q4 2025 1.8m, Q1 2026 1.7m, Q2 2026 1.6m -23.6k -23,585 -1.4%
10 DEVON ENERGY CORP NEW COM DVN DVN 4,219,415 $174.3m2.95% 2.95% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 4.2m
11 ALARM COM HLDGS INC COM ALRM ALRM 3,585,614 $167.5m2.84% 2.84% AddedShares held: Q3 2025 3.3m, Q4 2025 3.4m, Q1 2026 3.3m, Q2 2026 3.6m +316.6k +316,628 9.7%
12 GENERAC HLDGS INC COM GNRC GNRC 558,568 $163.6m2.77% 2.77% ReducedShares held: Q3 2025 618.2k, Q4 2025 627.8k, Q1 2026 580.9k, Q2 2026 558.6k -22.4k -22,360 -3.9%
13 POWER INTEGRATIONS INC COM POWI POWI 1,891,864 $158.5m2.68% 2.68% ReducedShares held: Q3 2025 2.0m, Q4 2025 2.0m, Q1 2026 2.0m, Q2 2026 1.9m -67.3k -67,308 -3.4%
14 SEMTECH CORP COM SMTC SMTC 955,033 $154.6m2.62% 2.62% ReducedShares held: Q3 2025 2.7m, Q4 2025 2.8m, Q1 2026 2.2m, Q2 2026 955.0k -1.3m -1,251,715 -56.7%
15 INTERDIGITAL INC COM IDCC IDCC 510,096 $144.4m2.45% 2.45% ReducedShares held: Q3 2025 790.9k, Q4 2025 609.2k, Q1 2026 556.8k, Q2 2026 510.1k -46.7k -46,692 -8.4%
16 ZETA GLOBAL HOLDINGS CORP CL A ZETA ZETA 6,761,165 $133.1m2.25% 2.25% AddedShares held: Q3 2025 6.1m, Q4 2025 5.5m, Q1 2026 6.2m, Q2 2026 6.8m +607.7k +607,693 9.9%
17 ALIGN TECHNOLOGY INC COM ALGN ALGN 783,178 $132.1m2.24% 2.24% AddedShares held: Q3 2025 804.0k, Q4 2025 820.9k, Q1 2026 775.8k, Q2 2026 783.2k +7.4k +7,352 0.9%
18 SNAP ON INC COM SNA SNA 305,180 $122.8m2.08% 2.08% ReducedShares held: Q3 2025 326.0k, Q4 2025 327.8k, Q1 2026 307.8k, Q2 2026 305.2k -2.7k -2,668 -0.9%
19 SPS COMM INC COM SPSC SPSC 2,123,881 $121.4m2.06% 2.06% AddedShares held: Q3 2025 792.5k, Q4 2025 844.6k, Q1 2026 810.9k, Q2 2026 2.1m +1.3m +1,312,943 161.9%
20 GENTEX CORP COM GNTX GNTX 4,561,485 $115.3m1.95% 1.95% AddedShares held: Q3 2025 4.7m, Q4 2025 4.8m, Q1 2026 4.5m, Q2 2026 4.6m +41.8k +41,777 0.9%
21 SHARKNINJA INC COM SHS SN SN 715,721 $109.0m1.85% 1.85% AddedShares held: Q3 2025 447.7k, Q4 2025 455.6k, Q1 2026 427.4k, Q2 2026 715.7k +288.3k +288,292 67.5%
22 DOUBLEVERIFY HLDGS INC COM DV DV 9,689,140 $105.0m1.78% 1.78% AddedShares held: Q3 2025 2.9m, Q4 2025 3.7m, Q1 2026 3.9m, Q2 2026 9.7m +5.8m +5,781,039 147.9%
23 GITLAB INC CLASS A COM GTLB GTLB 3,308,421 $101.0m1.71% 1.71% AddedShares held: Q3 2025 0, Q4 2025 0, Q1 2026 909.5k, Q2 2026 3.3m +2.4m +2,398,874 263.7%
24 MONDAY COM LTD SHS MNDY MNDY 1,263,335 $91.5m1.55% 1.55% AddedShares held: Q3 2025 0, Q4 2025 72.9k, Q1 2026 403.9k, Q2 2026 1.3m +859.4k +859,447 212.8%
25 SUPER MICRO COMPUTER INC COM NEW SMCI SMCI 2,663,417 $78.1m1.32% 1.32% ReducedShares held: Q3 2025 9.5m, Q4 2025 9.6m, Q1 2026 5.0m, Q2 2026 2.7m -2.3m -2,323,742 -46.6%
26 STITCH FIX INC COM CL A SFIX SFIX 18,910,052 $77.7m1.32% 1.32% AddedShares held: Q3 2025 17.5m, Q4 2025 19.5m, Q1 2026 18.7m, Q2 2026 18.9m +171.9k +171,872 0.9%
27 TAKE-TWO INTERACTIVE SOFTWAR COM TTWO TTWO 292,065 $73.0m1.24% 1.24% AddedShares held: Q3 2025 306.3k, Q4 2025 306.9k, Q1 2026 290.2k, Q2 2026 292.1k +1.8k +1,839 0.6%
28 DOLBY LABORATORIES INC COM CL A DLB DLB 1,247,791 $65.6m1.11% 1.11% ReducedShares held: Q3 2025 1.4m, Q4 2025 1.3m, Q1 2026 1.3m, Q2 2026 1.2m -20.0k -19,992 -1.6%
29 FLOOR & DECOR HLDGS INC CL A FND FND 1,103,591 $65.5m1.11% 1.11% AddedShares held: Q3 2025 1.1m, Q4 2025 1.1m, Q1 2026 1.1m, Q2 2026 1.1m +11.8k +11,750 1.1%
30 IPG PHOTONICS CORP COM IPGP IPGP 530,833 $62.3m1.05% 1.05% AddedShares held: Q3 2025 561.6k, Q4 2025 566.7k, Q1 2026 528.7k, Q2 2026 530.8k +2.1k +2,096 0.4%
31 AUTODESK INC COM ADSK ADSK 309,345 $60.1m1.02% 1.02% AddedShares held: Q3 2025 320.8k, Q4 2025 322.0k, Q1 2026 301.8k, Q2 2026 309.3k +7.6k +7,588 2.5%
32 LGI HOMES INC COM LGIH LGIH 815,069 $51.9m0.88% 0.88% AddedShares held: Q3 2025 787.0k, Q4 2025 711.2k, Q1 2026 721.6k, Q2 2026 815.1k +93.5k +93,468 12.9%
33 SIMPSON MFG INC COM SSD SSD 240,664 $50.4m0.85% 0.85% ReducedShares held: Q3 2025 256.0k, Q4 2025 260.2k, Q1 2026 241.6k, Q2 2026 240.7k -901 -901 -0.4%
34 KORNIT DIGITAL LTD SHS KRNT KRNT 3,031,101 $49.3m0.83% 0.83% AddedShares held: Q3 2025 1.8m, Q4 2025 3.0m, Q1 2026 3.0m, Q2 2026 3.0m +32.4k +32,431 1.1%
35 GARTNER INC COM IT IT 344,687 $44.7m0.76% 0.76% AddedShares held: Q3 2025 86.7k, Q4 2025 357.2k, Q1 2026 338.9k, Q2 2026 344.7k +5.8k +5,794 1.7%
36 MICROCHIP TECHNOLOGY INC. COM MCHP MCHP 478,469 $43.6m0.74% 0.74% ReducedShares held: Q3 2025 1.8m, Q4 2025 1.8m, Q1 2026 1.2m, Q2 2026 478.5k -767.4k -767,353 -61.6%
37 CELSIUS HLDGS INC COM NEW CELH CELH 1,466,503 $42.9m0.73% 0.73% AddedShares held: Q3 2025 688.2k, Q4 2025 1.5m, Q1 2026 1.4m, Q2 2026 1.5m +28.9k +28,852 2.0%
38 INTUITIVE SURGICAL INC COM NEW ISRG ISRG 106,000 $42.2m0.71% 0.71% ReducedShares held: Q3 2025 109.5k, Q4 2025 110.4k, Q1 2026 107.0k, Q2 2026 106.0k -961 -961 -0.9%
39 DYNATRACE INC COM NEW DT DT 908,550 $39.9m0.68% 0.68% AddedShares held: Q3 2025 0, Q4 2025 0, Q1 2026 658.7k, Q2 2026 908.5k +249.8k +249,827 37.9%
40 CORE LABORATORIES INC COM CLB CLB 3,042,177 $35.4m0.60% 0.60% ReducedShares held: Q3 2025 6.0m, Q4 2025 5.2m, Q1 2026 4.9m, Q2 2026 3.0m -1.9m -1,894,938 -38.4%
41 PROGYNY INC COM PGNY PGNY 1,181,632 $34.1m0.58% 0.58% AddedShares held: Q3 2025 601.8k, Q4 2025 622.4k, Q1 2026 574.6k, Q2 2026 1.2m +607.1k +607,066 105.7%
42 CEVA INC COM CEVA CEVA 662,802 $31.3m0.53% 0.53% AddedShares held: Q3 2025 540.1k, Q4 2025 607.7k, Q1 2026 450.5k, Q2 2026 662.8k +212.3k +212,318 47.1%
43 TREX CO INC COM TREX TREX 592,096 $29.6m0.50% 0.50% ReducedShares held: Q3 2025 1.0m, Q4 2025 1.0m, Q1 2026 678.4k, Q2 2026 592.1k -86.3k -86,261 -12.7%
44 VEEVA SYS INC CL A COM VEEV VEEV 140,964 $25.0m0.42% 0.42% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 141.0k
45 GRACO INC COM GGG GGG 321,466 $24.3m0.41% 0.41% ReducedShares held: Q3 2025 350.9k, Q4 2025 358.4k, Q1 2026 327.4k, Q2 2026 321.5k -5.9k -5,935 -1.8%
46 POWERFLEET INC COM AIOT AIOT 6,258,600 $24.0m0.41% 0.41% ReducedShares held: Q3 2025 7.4m, Q4 2025 7.9m, Q1 2026 7.3m, Q2 2026 6.3m -1.1m -1,057,572 -14.5%
47 INTUIT COM INTU INTU 86,019 $22.5m0.38% 0.38% ReducedShares held: Q3 2025 91.0k, Q4 2025 89.8k, Q1 2026 87.1k, Q2 2026 86.0k -1.1k -1,107 -1.3%
48 WEAVE COMMUNICATIONS INC COM WEAV WEAV 2,998,909 $18.0m0.30% 0.30% AddedShares held: Q3 2025 1.3m, Q4 2025 2.3m, Q1 2026 2.3m, Q2 2026 3.0m +722.5k +722,528 31.7%
49 ZIPRECRUITER INC CL A ZIP ZIP 4,091,619 $15.3m0.26% 0.26% ReducedShares held: Q3 2025 4.2m, Q4 2025 6.4m, Q1 2026 4.2m, Q2 2026 4.1m -125.0k -124,982 -3.0%
50 PAYCHEX INC COM PAYX PAYX 151,732 $14.9m0.25% 0.25% AddedShares held: Q3 2025 151.1k, Q4 2025 153.4k, Q1 2026 143.0k, Q2 2026 151.7k +8.7k +8,732 6.1%
51 MATERIALISE NV SPONSORED ADS MTLS MTLS 1,992,441 $14.8m0.25% 0.25% AddedShares held: Q3 2025 1.0m, Q4 2025 1.2m, Q1 2026 1.1m, Q2 2026 2.0m +857.1k +857,054 75.5%
52 YETI HLDGS INC COM YETI YETI 294,902 $14.6m0.25% 0.25% AddedShares held: Q3 2025 772.8k, Q4 2025 132.7k, Q1 2026 293.8k, Q2 2026 294.9k +1.1k +1,062 0.4%
53 AXOGEN INC COM AXGN AXGN 127,859 $5.9m0.10% 0.10% ReducedShares held: Q3 2025 167.6k, Q4 2025 201.9k, Q1 2026 196.6k, Q2 2026 127.9k -68.7k -68,706 -35.0%
54 INMODE LTD SHS INMD INMD 318,545 $4.7m0.08% 0.08% AddedShares held: Q3 2025 255.6k, Q4 2025 282.9k, Q1 2026 266.5k, Q2 2026 318.5k +52.1k +52,068 19.5%
55 GLOBANT S A COM GLOB GLOB 100,347 $2.9m0.05% 0.05% AddedShares held: Q3 2025 71.4k, Q4 2025 84.1k, Q1 2026 81.9k, Q2 2026 100.3k +18.4k +18,420 22.5%
56 MIMEDX GROUP INC COM MDXG MDXG 587,932 $2.3m0.04% 0.04% ReducedShares held: Q3 2025 1.4m, Q4 2025 1.5m, Q1 2026 639.1k, Q2 2026 587.9k -51.1k -51,134 -8.0%
57 APPLE INC COM AAPL AAPL 992 $287.0k0.00% 0.00% UnchangedShares held: Q3 2025 1.5k, Q4 2025 1.5k, Q1 2026 992, Q2 2026 992
58 CCC INTELLIGENT SOLUTIONS HL COM CCC CCC 34,887 $180.0k0.00% 0.00% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 34.9k

Sold out since Q1 2026

SecurityTickerShares held beforeValue then
COTERRA ENERGY INC CTRA CTRA 6,395,098 $224.7m6.4m shares
GEOSPACE TECHNOLOGIES CORP GEOS GEOS 1,101,426 $13.4m1.1m shares
MILLERKNOLL INC MLKN MLKN 498,550 $7.2m498.6k shares
EGAIN CORP EGAN EGAN 912,349 $7.2m912.3k shares
SOUNDTHINKING INC SSTI SSTI 196,468 $1.3m196.5k shares
STONERIDGE INC SRI SRI 197,087 $951.9k197.1k shares

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

CompanyTickerStakeChange ScheduleLast filed
STITCH FIX INC SFIX · 13G · filed 2026-08-14 SFIX 16.0%≈ $77.7m +0.6 pts 13G 2026-08-14
PROTO LABS INC PRLB · 13G · filed 2026-08-14 PRLB 10.0%≈ $194.0m -0.5 pts 13G 2026-08-14
KORNIT DIGITAL LTD KRNT · 13G · filed 2026-08-14 KRNT 7.1%≈ $49.3m +0.6 pts 13G 2026-08-14
CORE LABORATORIES INC CLB · 13G · filed 2026-08-14 CLB 6.6%≈ $35.4m -4.1 pts 13G 2026-08-14
ALARM COM HLDGS INC ALRM · 13G · filed 2026-05-15 ALRM 6.6%≈ $152.7m -0.3 pts 13G 2026-05-15
DOUBLEVERIFY HLDGS INC DV · 13G · filed 2026-08-14 DV 6.3%≈ $105.0m new 13G 2026-08-14
SPS COMM INC SPSC · 13G · filed 2026-08-14 SPSC 5.9%≈ $121.4m new 13G 2026-08-14
ZIPRECRUITER INC ZIP · 13G · filed 2026-08-14 ZIP 5.9%≈ $15.3m no change 13G 2026-08-14