Montanaro Asset Management Ltd — 13F Holdings & Portfolio
CIK 1831133 · latest 13F-HR filed 2026-08-12
Montanaro Asset Management Ltd manages $317.2M in 13F-reported U.S. long-equity assets across 42 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVMI (5.89%), WTS (5.69%), EGP (5.06%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 5 new positions, exited 5, added to 15, and trimmed 17.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
53 THREADNEEDLE STREET
LONDON, X0 EC2R 8AR
$317.2M
Long-equity book
42
Distinct positions
2026-06-30
Filed 2026-08-12
+5 / −5 / ↑15 / ↓17
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- WATTS WATER TECHNOLOGIES INC$10.4M +134.6%
- VALMONT INDS INC$7.2M +92.6%
- SITIME CORP$3.3M +38.2%
- CLEAN HARBORS INC$3.0M +290.7%
- FEDERAL SIGNAL CORP$2.4M +18.3%
Top Trims
- BIO-TECHNE CORP-$8.9M -49.9%
- GRACO INC-$5.5M -59.4%
- HAWKINS INC-$5.0M -53.9%
- FABRINET-$4.8M -46.1%
- ROLLINS INC-$4.5M -41.7%
New Positions
- ACUITY INC$10.9M
- SENSIENT TECHNOLOGIES CORP$8.1M
- BEL FUSE INC$3.7M
- KODIAK GAS SVCS INC$3.4M
- ESCO TECHNOLOGIES INC$1.8M
Exited Positions
- TYLER TECHNOLOGIES INC$9.4M
- FTI CONSULTING INC$8.8M
- TRANSMEDICS GROUP INC$7.8M
- BELLRING BRANDS INC$2.3M
- DOXIMITY INC$1.1M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NOVA LTD | NVMI | M7516K103 | $18.7M | 5.89% | 34,380 | SH |
| 2 | WATTS WATER TECHNOLOGIES INC | WTS | 942749102 | $18.0M | 5.69% | 46,100 | SH |
| 3 | EASTGROUP PPTYS INC | EGP | 277276101 | $16.1M | 5.06% | 79,318 | SH |
| 4 | FEDERAL SIGNAL CORP | FSS | 313855108 | $15.7M | 4.96% | 122,531 | SH |
| 5 | VALMONT INDS INC | VMI | 920253101 | $14.9M | 4.71% | 25,850 | SH |
| 6 | BALCHEM CORP | BCPC | 057665200 | $14.8M | 4.66% | 87,518 | SH |
| 7 | SITIME CORP | SITM | 82982T106 | $11.9M | 3.76% | 16,000 | SH |
| 8 | BENTLEY SYS INC | BSY | 08265T208 | $11.4M | 3.59% | 380,833 | SH |
| 9 | CSW INDUSTRIALS INC | CSW | 126402106 | $11.3M | 3.57% | 40,705 | SH |
| 10 | HOULIHAN LOKEY INC | HLI | 441593100 | $11.1M | 3.51% | 82,934 | SH |
| 11 | AMERICAN WTR WKS CO INC NEW | AWK | 030420103 | $11.1M | 3.49% | 84,140 | SH |
| 12 | ACUITY INC | AYI | 00508Y102 | $10.9M | 3.44% | 28,950 | SH |
| 13 | ENTEGRIS INC | ENTG | 29362U104 | $10.7M | 3.37% | 59,500 | SH |
| 14 | EXPONENT INC | EXPO | 30214U102 | $10.5M | 3.32% | 179,089 | SH |
| 15 | MANHATTAN ASSOCIATES INC | MANH | 562750109 | $9.4M | 2.98% | 67,765 | SH |
| 16 | BIO-TECHNE CORP | TECH | 09073M104 | $8.9M | 2.81% | 126,335 | SH |
| 17 | STRIDE INC | LRN | 86333M108 | $8.4M | 2.64% | 97,249 | SH |
| 18 | SENSIENT TECHNOLOGIES CORP | SXT | 81725T100 | $8.1M | 2.55% | 65,500 | SH |
| 19 | VEEVA SYS INC | VEEV | 922475108 | $7.6M | 2.41% | 43,100 | SH |
| 20 | MIRION TECHNOLOGIES INC | MIR | 60471A101 | $7.5M | 2.37% | 418,646 | SH |
| 21 | ROLLINS INC | ROL | 775711104 | $6.3M | 1.99% | 151,315 | SH |
| 22 | MSCI INC | MSCI | 55354G100 | $6.2M | 1.94% | 11,000 | SH |
| 23 | FABRINET | FN | G3323L100 | $5.6M | 1.77% | 10,000 | SH |
| 24 | ALARM COM HLDGS INC | ALRM | 011642105 | $5.2M | 1.64% | 111,197 | SH |
| 25 | MDA SPACE LTD | MDA | 55293N109 | $5.0M | 1.58% | 121,600 | SH |
| 26 | HEALTHEQUITY INC | HQY | 42226A107 | $4.3M | 1.35% | 47,400 | SH |
| 27 | HAWKINS INC | HWKN | 420261109 | $4.2M | 1.34% | 29,800 | SH |
| 28 | CLEAN HARBORS INC | CLH | 184496107 | $4.0M | 1.27% | 13,500 | SH |
| 29 | TRADEWEB MKTS INC | TW | 892672106 | $3.9M | 1.24% | 39,500 | SH |
| 30 | GRACO INC | GGG | 384109104 | $3.8M | 1.19% | 50,000 | SH |
| 31 | BEL FUSE INC | BELFB | 077347300 | $3.7M | 1.16% | 11,000 | SH |
| 32 | KODIAK GAS SVCS INC | KGS | 50012A108 | $3.4M | 1.07% | 45,000 | SH |
| 33 | HEXCEL CORP NEW | HXL | 428291108 | $3.4M | 1.06% | 33,710 | SH |
| 34 | TRANSCAT INC | TRNS | 893529107 | $3.0M | 0.94% | 32,105 | SH |
| 35 | STONEX GROUP INC | SNEX | 861896108 | $2.9M | 0.90% | 24,079 | SH |
| 36 | ADVANCED DRAIN SYS INC DEL | WMS | 00790R104 | $2.8M | 0.89% | 17,900 | SH |
| 37 | TETRA TECH INC NEW | TTEK | 88162G103 | $2.7M | 0.84% | 91,800 | SH |
| 38 | STEVANATO GROUP S P A | STVN | T9224W109 | $2.5M | 0.80% | 140,459 | SH |
| 39 | UNIVERSAL TECHNICAL INST INC | UTI | 913915104 | $2.3M | 0.73% | 54,068 | SH |
| 40 | ESCO TECHNOLOGIES INC | ESE | 296315104 | $1.8M | 0.55% | 5,000 | SH |
| 41 | KINSALE CAP GROUP INC | KNSL | 49714P108 | $1.6M | 0.49% | 4,757 | SH |
| 42 | BADGER METER INC | BMI | 056525108 | $1.5M | 0.48% | 10,300 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-12 | $317.2M | 42 | 0001831133-26-000003 |
| 2026-03-31 | 2026-05-11 | $334.4M | 42 | 0001831133-26-000002 |
| 2025-12-31 | 2026-03-10 | $358.8M | 41 | 0001831133-26-000001 |
| 2025-09-30 | 2025-11-13 | $400.4M | 41 | 0001831133-25-000003 |