0001085146-23-004247.txt : 20231113 0001085146-23-004247.hdr.sgml : 20231113 20231113084727 ACCESSION NUMBER: 0001085146-23-004247 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230930 FILED AS OF DATE: 20231113 DATE AS OF CHANGE: 20231113 EFFECTIVENESS DATE: 20231113 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Montanaro Asset Management Ltd CENTRAL INDEX KEY: 0001831133 IRS NUMBER: 000000000 STATE OF INCORPORATION: X0 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-20840 FILM NUMBER: 231395506 BUSINESS ADDRESS: STREET 1: MONTANARO ASSET MANAGEMENT LTD STREET 2: 53 THREADNEEDLE STREET CITY: LONDON STATE: X0 ZIP: EC2R 8AR BUSINESS PHONE: 0207 448 8600 MAIL ADDRESS: STREET 1: MONTANARO ASSET MANAGEMENT LTD STREET 2: 53 THREADNEEDLE STREET CITY: LONDON STATE: X0 ZIP: EC2R 8AR 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false false false 0001831133 XXXXXXXX 09-30-2023 09-30-2023 false Montanaro Asset Management Ltd

MONTANARO ASSET MANAGEMENT LTD 53 THREADNEEDLE STREET LONDON X0 EC2R 8AR

13F HOLDINGS REPORT 028-20840 N Cedric Durant Des Aulnois 44-0787-2045245 /s/Cedric Durant Des Aulnois LONDON X0 11-01-2023 0 45 568452991 false INFORMATION TABLE 2 infotable.xml INFORMATION TABLE ADVANCED DRAIN SYS INC DEL COM 00790R104 BBG001SH4LQ0 14627155 128500 SH SOLE 128500 0 0 ALARM COM HLDGS INC COM 011642105 BBG007GNPYZ6 16079820 263000 SH SOLE 193000 0 70000 AMBARELLA INC SHS G037AX101 BBG001V1SN18 116666 2200 SH SOLE 2200 0 0 AMERICAN WTR WKS CO INC NEW COM 030420103 BBG001SPHYW3 18128712 146400 SH SOLE 146400 0 0 ANSYS INC COM 03662Q105 BBG001S926L8 27664711 92975 SH SOLE 92975 0 0 AXON ENTERPRISE INC COM 05464C101 BBG001SB2HG5 6198539 31150 SH SOLE 1150 0 30000 BADGER METER INC COM 056525108 BBG001S5P8Q2 16257310 113000 SH SOLE 113000 0 0 BALCHEM CORP COM 057665200 BBG001S5P2R4 23319520 188000 SH SOLE 148000 0 40000 BENTLEY SYS INC COM CL B 08265T208 BBG001SBWGV7 14489970 288875 SH SOLE 248875 0 40000 BIO-TECHNE CORP COM 09073M104 BBG001S66C28 27827016 408800 SH SOLE 328000 0 80800 BRUKER CORP COM 116794108 BBG001SF69P0 33099990 531300 SH SOLE 391300 0 140000 COGNEX CORP COM 192422103 BBG001S5TC16 12668340 298500 SH SOLE 238500 0 60000 CSW INDUSTRIALS INC COM 126402106 BBG007NLG4M2 7885800 45000 SH SOLE 0 0 45000 ENERGY RECOVERY INC COM 29270J100 BBG001T28M86 17991383 848250 SH SOLE 633250 0 215000 ENTEGRIS INC COM 29362U104 BBG001SF9YL6 14180410 151000 SH SOLE 151000 0 0 EXPONENT INC COM 30214U102 BBG001S9CG99 17505200 204500 SH SOLE 124500 0 80000 FABRINET SHS G3323L100 BBG001SP57F4 6664800 40000 SH SOLE 0 0 40000 FORMFACTOR INC COM 346375108 BBG001SFT2R8 4559670 130500 SH SOLE 5500 0 125000 FOX FACTORY HLDG CORP COM 35138V102 BBG004T7VS71 4954000 50000 SH SOLE 0 0 50000 HOULIHAN LOKEY INC CL A 441593100 BBG001SFVN99 15103920 141000 SH SOLE 31000 0 110000 ICON PLC SHS G4705A100 BBG001SDCL35 36518875 148300 SH SOLE 108300 0 40000 IDEX CORP COM 45167R104 BBG001S67N14 18097740 87000 SH SOLE 87000 0 0 IDEXX LABS INC COM 45168D104 BBG001S5S4Y9 2186350 5000 SH SOLE 5000 0 0 INMODE LTD SHS M5425M103 BBG00PPS74F3 3205915 105250 SH SOLE 5250 0 100000 MASIMO CORP COM 574795100 BBG001S71GQ6 12472480 142250 SH SOLE 142250 0 0 MAXCYTE INC COM 57777K106 BBG00CFTQNG7 90226 29000 SH SOLE 29000 0 0 MSCI INC COM 55354G100 BBG001SV8B05 17188180 33500 SH SOLE 33500 0 0 NATIONAL RESH CORP COM NEW 637372202 BBG004K1F9R1 2977227 67100 SH SOLE 0 0 67100 NOVA LTD COM M7516K103 BBG001SD4C89 23412819 208225 SH SOLE 158225 0 50000 PAYCOM SOFTWARE INC COM 70432V102 BBG0064N1009 2748262 10600 SH SOLE 10600 0 0 PAYLOCITY HLDG CORP COM 70438V106 BBG006598YZ0 5451000 30000 SH SOLE 0 0 30000 POWER INTEGRATIONS INC COM 739276103 BBG001S73RW3 15948790 209000 SH SOLE 169000 0 40000 ROLLINS INC COM 775711104 BBG001S5VRG4 6812725 182500 SH SOLE 82500 0 100000 SHOCKWAVE MED INC COM 82489T104 BBG005XVXMM4 169235 850 SH SOLE 850 0 0 SITIME CORP COM 82982T106 BBG00QNSY276 6575088 57550 SH SOLE 2550 0 55000 SOLAREDGE TECHNOLOGIES INC COM 83417M104 BBG0084BC0P2 11484299 88675 SH SOLE 68675 0 20000 TECHTARGET INC COM 87874R100 BBG001S9R748 1821600 60000 SH SOLE 0 0 60000 TRANSMEDICS GROUP INC COM 89377M109 BBG00NZ6J701 391463 7150 SH SOLE 7150 0 0 TREX CO INC COM 89531P105 BBG001SB6TV8 25607265 415500 SH SOLE 275500 0 140000 TYLER TECHNOLOGIES INC COM 902252105 BBG001S5WZB0 27705545 71750 SH SOLE 46750 0 25000 UNITY SOFTWARE INC COM 91332U101 BBG0056JW5H5 94170 3000 SH SOLE 3000 0 0 VEEVA SYS INC CL A COM 922475108 BBG001TX0CB4 25546914 125550 SH SOLE 125550 0 0 XPEL INC COM 98379L100 BBG001S6JQ87 8856084 114850 SH SOLE 36250 0 78600 XYLEM INC COM 98419M100 BBG001V05C73 13569430 149000 SH SOLE 149000 0 0 ZSCALER INC COM 98980G102 BBG003338H61 198377 1275 SH SOLE 1275 0 0