COMMON STOCK EUR1.

NPORT-P false 0000076721 XXXXXXXX S000055846 C000175864 C000175865 Impax Funds Series Trust I 811-02064 0000076721 549300TD5R23SWU72456 30 Penhallow St. Suite 400 Portsmouth 03801 800-767-1729 Impax Global Sustainable Infrastructure Fund S000055846 549300M7V6OFRLWL5549 2022-12-31 2022-12-31 N 106882419.42 117434.18 106764985.24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 UST ACCIONA SA N/A COMMON STOCK EUR1. 557910908 5710 NS 1050820.51 0.984237020815 Long EC CORP ES N 2 N N N ADANI GREEN ENERGY LTD N/A COMMON STOCK INR10.0 ACI11WSG6 22329 NS 517586.18 0.484790194872 Long EC CORP IN N 2 N N N ADVANCED DRAINAGE SYSTEMS IN N/A COMMON STOCK USD.01 00790R104 5396 NS USD 442310.12 0.414283876878 Long EC CORP US N 1 N N N AMERICAN WATER WORKS CO INC N/A COMMON STOCK USD.01 030420103 10681 NS USD 1627998.02 1.524842640441 Long EC CORP US N 1 N N N AMERISOURCEBERGEN CORP N/A COMMON STOCK USD.01 03073E105 3120 NS USD 517015.2 0.484255394067 Long EC CORP US N 1 N N N ANDRITZ AG N/A COMMON STOCK B1WVF6905 13872 NS 794062.25 0.74374781977 Long EC CORP AT N 2 N N N ASHTEAD GROUP PLC N/A COMMON STOCK GBP.1 005367008 22724 NS 1290831.13 1.20903976814 Long EC CORP GB N 2 N N N ASML HOLDING NV N/A COMMON STOCK EUR.09 ACI02GTQ9 947 NS 516353.3 0.483635434257 Long EC CORP NL N 2 N N N AT+T INC N/A COMMON STOCK USD1.0 00206R102 78135 NS USD 1438465.35 1.347319391996 Long EC CORP US N 1 N N N BCE INC N/A COMMON STOCK 05534B950 25451 NS 1118227.47 1.047372851208 Long EC CORP CA N 1 N N N BEIJING ENTERPRISES WATER GR N/A COMMON STOCK HKD.1 B01YCG906 662000 NS 169277 0.158551045195 Long EC CORP HK N 2 N N N BLOOM ENERGY CORP A N/A COMMON STOCK USD.0001 093712107 22945 NS USD 438708.4 0.410910373859 Long EC CORP US N 1 N N N BORALEX INC A N/A COMMON STOCK 09950M953 15689 NS 463717.71 0.434335010638 Long EC CORP CA N 1 N N N BOSTON PROPERTIES INC N/A REIT USD.01 101121101 1879 NS USD 126982.82 0.118936765377 Long RE RF US N 1 N N N BRAMBLES LTD N/A COMMON STOCK B1FJ0C904 92708 NS 760261.56 0.712088854123 Long EC CORP AU N 2 N N N BROOKFIELD RENEWABLE PARTNER N/A LTD PART G16258959 28507 NS 721728.18 0.675997077485 Long CORP CA N 1 N N N CADENCE DESIGN SYS INC N/A COMMON STOCK USD.01 127387108 2996 NS USD 481277.44 0.450782097631 Long EC CORP US N 1 N N N CANADIAN PACIFIC RAILWAY LTD N/A COMMON STOCK 13645T951 23965 NS 1786755.35 1.673540576982 Long EC CORP CA N 1 N N N CARDINAL HEALTH INC N/A COMMON STOCK 14149Y108 7175 NS USD 551542.25 0.516594695124 Long EC CORP US N 1 N N N CARLISLE COS INC N/A COMMON STOCK USD1.0 142339100 1919 NS USD 452212.35 0.423558668587 Long EC CORP US N 1 N N N CHECK POINT SOFTWARE TECH N/A COMMON STOCK USD.01 M22465104 4098 NS USD 517003.68 0.484244604013 Long EC CORP IL N 1 N N N CHINA CONCH VENTURE HOLDINGS N/A COMMON STOCK HKD.01 ACI07F6S7 253500 NS 549924.45 0.515079404323 Long EC CORP CN N 2 N N N CHINA RAILWAY SIGNAL + COM H N/A COMMON STOCK CNY1.0 BYVDW4900 1703000 NS 555359.81 0.520170361801 Long EC CORP CN N 2 N N N CIGNA CORP N/A COMMON STOCK USD.01 125523100 2369 NS USD 784944.46 0.735207763328 Long EC CORP US N 1 N N N CISCO SYSTEMS INC N/A COMMON STOCK USD.001 17275R102 21196 NS USD 1009777.44 0.945794576499 Long EC CORP US N 1 N N N CLEAN HARBORS INC N/A COMMON STOCK USD.01 184496107 4413 NS USD 503611.56 0.471701053363 Long EC CORP US N 1 N N N COUSINS PROPERTIES INC N/A REIT USD1.0 222795502 5541 NS USD 140131.89 0.131252666485 Long RE RF US N 1 N N N CSX CORP N/A COMMON STOCK USD1.0 126408103 39616 NS USD 1227303.68 1.149537629065 Long EC CORP US N 1 N N N CVS HEALTH CORP N/A COMMON STOCK USD.01 126650100 13055 NS USD 1216595.45 1.139507908202 Long EC CORP US N 1 N N N DARLING INGREDIENTS INC N/A COMMON STOCK USD.01 237266101 7355 NS USD 460349.45 0.431180174816 Long EC CORP US N 1 N N N DOUGLAS EMMETT INC N/A REIT USD.01 25960P109 6100 NS USD 95648 0.08958742399 Long RE RF US N 1 N N N EAST JAPAN RAILWAY CO N/A COMMON STOCK 629854902 3700 NS 210744.33 0.197390866983 Long EC CORP JP N 2 N N N EDISON INTERNATIONAL N/A COMMON STOCK 281020107 23995 NS USD 1526561.9 1.429833851022 Long EC CORP US N 1 N N N EDP ENERGIAS DE PORTUGAL SA N/A COMMON STOCK EUR1. 410359905 264475 NS 1318356.29 1.234820842279 Long EC CORP PT N 2 N N N EDP RENOVAVEIS SA N/A COMMON STOCK EUR5. B39GNW904 52407 NS 1154816.21 1.081643206716 Long EC CORP ES N 2 N N N ELKEM ASA N/A COMMON STOCK NOK5.0 BG0T3J907 140967 NS 507383.71 0.475234187369 Long EC CORP NO N 2 N N N ENCAVIS AG N/A COMMON STOCK 549196905 22854 NS 451916.81 0.423281854987 Long EC CORP DE N 2 N N N ENCOMPASS HEALTH CORP N/A COMMON STOCK USD.01 29261A100 9311 NS USD 556890.91 0.521604446203 Long EC CORP US N 1 N N N ENEL AMERICAS SA N/A COMMON STOCK 229945902 8660717 NS 1158846.31 1.085417946151 Long EC CORP CL N 1 N N N ENEL CHILE SA N/A COMMON STOCK BYMLZD909 10423231 NS 479106.13 0.448748369068 Long EC CORP CL N 1 N N N ENEL SPA N/A COMMON STOCK EUR1. 714456902 353407 NS 1900672.91 1.78023994077 Long EC CORP IT N 2 N N N ENGIE BRASIL ENERGIA SA N/A COMMON STOCK ACI0NT451 104100 NS 746874 0.699549574536 Long EC CORP BR N 1 N N N ENPHASE ENERGY INC N/A COMMON STOCK USD.00001 29355A107 1717 NS USD 454936.32 0.426110038771 Long EC CORP US N 1 N N N FERGUSON PLC N/A COMMON STOCK GBP.1 BJVNSS903 8214 NS 1031216.87 0.965875532771 Long EC CORP GB N 2 N N N FIRST SOLAR INC N/A COMMON STOCK USD.001 336433107 1752 NS USD 262432.08 0.245803508903 Long EC CORP US N 1 N N N GEBERIT AG REG N/A COMMON STOCK CHF.1 B1WGG9901 1822 NS 860130.31 0.805629587328 Long EC CORP CH N 2 N N N GENERAC HOLDINGS INC N/A COMMON STOCK USD.01 368736104 5901 NS USD 593994.66 0.556357178962 Long EC CORP US N 1 N N N GLOBE TELECOM INC N/A COMMON STOCK PHP50. 628486904 6695 NS 262636.11 0.245994610883 Long EC CORP PH N 2 N N N GUANGDONG INVESTMENT LTD N/A COMMON STOCK 691316004 1110000 NS 1133365.26 1.06155146039 Long EC CORP HK N 2 N N N HCA HEALTHCARE INC N/A COMMON STOCK USD.01 40412C101 4860 NS USD 1166205.6 1.092310927013 Long EC CORP US N 1 N N N HEALTHPEAK PROPERTIES INC N/A REIT USD1.0 42250P103 35230 NS USD 883216.1 0.827252584745 Long RE RF US N 1 N N N HENRY SCHEIN INC N/A COMMON STOCK USD.01 806407102 6542 NS USD 522509.54 0.489401594376 Long EC CORP US N 1 N N N HERC HOLDINGS INC N/A COMMON STOCK USD.01 42704L104 100 NS USD 13157 0.012323328637 Long EC CORP US N 1 N N N HKT TRUST AND HKT LTD SS N/A STAPLED SECURITY HKD.0005 B4TXDZ907 826000 NS 1011125.61 0.947057321955 Long EC CORP HK N 2 N N N HUBBELL INC N/A COMMON STOCK USD.01 443510607 5524 NS USD 1296372.32 1.214229849876 Long EC CORP US N 1 N N N IBERDROLA SA N/A COMMON STOCK EUR.75 B288C9908 214667 NS 2505912.71 2.347129730189 Long EC CORP ES N 2 N N N IDEXX LABORATORIES INC N/A COMMON STOCK USD.1 45168D104 1286 NS USD 524636.56 0.491393839301 Long EC CORP US N 1 N N N INNERGEX RENEWABLE ENERGY N/A COMMON STOCK 45790B989 39335 NS 470625.55 0.440805146877 Long EC CORP CA N 1 N N N JACK HENRY + ASSOCIATES INC N/A COMMON STOCK USD.01 426281101 3108 NS USD 545640.48 0.511066880938 Long EC CORP US N 1 N N N JAPAN REAL ESTATE INVESTMENT N/A REIT 639758903 69 NS 303068.12 0.283864713997 Long RE RF JP N 2 N N N JUNIPER NETWORKS INC N/A COMMON STOCK USD.00001 48203R104 17453 NS USD 557797.88 0.522453947562 Long EC CORP US N 1 N N N KONINKLIJKE KPN NV N/A COMMON STOCK EUR.04 595607904 61421 NS 190113.6 0.178067368784 Long EC CORP NL N 2 N N N KURITA WATER INDUSTRIES LTD N/A COMMON STOCK 649796000 18700 NS 772398.05 0.723456335674 Long EC CORP JP N 2 N N N LENNOX INTERNATIONAL INC N/A COMMON STOCK USD.01 526107107 2184 NS USD 522478.32 0.489372352579 Long EC CORP US N 1 N N N LUMEN TECHNOLOGIES INC N/A COMMON STOCK USD1.0 550241103 149093 NS USD 778265.46 0.728951967024 Long EC CORP US N 1 N N N MASCO CORP N/A COMMON STOCK USD1.0 574599106 14760 NS USD 688849.2 0.645201419221 Long EC CORP US N 1 N N N MASTERCARD INC A N/A COMMON STOCK USD.0001 57636Q104 3733 NS USD 1298076.09 1.215825663331 Long EC CORP US N 1 N N N MCKESSON CORP N/A COMMON STOCK USD.01 58155Q103 1768 NS USD 663212.16 0.621188827507 Long EC CORP US N 1 N N N MEDICAL PROPERTIES TRUST INC N/A REIT USD.001 58463J304 62550 NS USD 696807 0.652654986495 Long RE RF US N 1 MERCURY NZ LTD N/A COMMON STOCK ACI05YT61 63084 NS 222859.22 0.208738117182 Long EC CORP NZ N 2 N N N MERIDIAN ENERGY LTD N/A COMMON STOCK BWFD05904 362751 NS 1206577.86 1.130125066086 Long EC CORP NZ N 2 N N N METTLER TOLEDO INTERNATIONAL N/A COMMON STOCK USD.01 592688105 347 NS USD 501571.15 0.46978993054 Long EC CORP US N 1 N N N MIURA CO LTD N/A COMMON STOCK 659777007 18700 NS 428837.68 0.40166509557 Long EC CORP JP N 2 N N N MOTOROLA SOLUTIONS INC N/A COMMON STOCK USD.01 620076307 2411 NS USD 621338.81 0.581968712498 Long EC CORP US N 1 N N N MTR CORP N/A COMMON STOCK 629005901 103346 NS 546581.5 0.511948274775 Long EC CORP HK N 2 N N N NARI TECHNOLOGY CO LTD A N/A COMMON STOCK CNY1.0 BP3R44900 143070 NS 499999.24 0.468317621996 Long EC CORP CN N 2 N N N NEOEN SA N/A COMMON STOCK BGV7F9900 8225 NS 332608.8 0.311533598073 Long EC CORP FR N 2 N N N NIPPON TELEGRAPH + TELEPHONE N/A COMMON STOCK 664137007 19300 NS 550407.16 0.515531528209 Long EC CORP JP N 2 N N N NORFOLK SOUTHERN CORP N/A COMMON STOCK USD1.0 655844108 4962 NS USD 1222736.04 1.145259409957 Long EC CORP US N 1 N N N OMEGA HEALTHCARE INVESTORS N/A REIT USD.1 681936100 34116 NS USD 953542.2 0.893122588699 Long RE RF US N 1 N N N ORANGE N/A COMMON STOCK EUR4.0 517617908 104571 NS 1037565.51 0.971821901785 Long EC CORP FR N 2 N N N ORIX JREIT INC N/A REIT 652777905 296 NS 419920.98 0.393313387396 Long RE RF JP N 2 N N N ORMAT TECHNOLOGIES INC N/A COMMON STOCK USD.001 686688102 8371 NS USD 723924.08 0.678053837944 Long EC CORP US N 1 ORSTED A/S N/A COMMON STOCK DKK10.0 BYT16L900 15630 NS 1413040.08 1.323505151828 Long EC CORP DK N 2 N N N OTIS WORLDWIDE CORP N/A COMMON STOCK USD.01 68902V107 1664 NS USD 130307.84 0.12205110103 Long EC CORP US N 1 N N N PCCW LTD N/A COMMON STOCK 657407904 1389000 NS 625786.1 0.586134207384 Long EC CORP HK N 2 N N N PENNON GROUP PLC N/A COMMON STOCK GBP.6105 BNNTLN908 46057 NS 495185.8 0.463809177594 Long EC CORP GB N 2 N N N PENTAIR PLC N/A COMMON STOCK USD.01 G7S00T104 15256 NS USD 686214.88 0.642734018515 Long EC CORP GB N 1 N N N PLUG POWER INC N/A COMMON STOCK USD.01 72919P202 40016 NS USD 494997.92 0.463633202297 Long EC CORP US N 1 POWER GRID CORP OF INDIA LTD N/A COMMON STOCK INR10.0 B233HS907 455260 NS 1175126.32 1.100666400467 Long EC CORP IN N 2 N N N PREMIER INC CLASS A N/A COMMON STOCK USD.01 74051N102 14917 NS USD 521796.66 0.488733884828 Long EC CORP US N 1 N N N PRYSMIAN SPA N/A COMMON STOCK EUR.1 B1W4V6907 15611 NS 580034.54 0.543281618684 Long EC CORP IT N 2 N N N QUANTA SERVICES INC N/A COMMON STOCK USD.00001 74762E102 6561 NS USD 934942.5 0.875701427672 Long EC CORP US N 1 N N N QUEST DIAGNOSTICS INC N/A COMMON STOCK USD.01 74834L100 3665 NS USD 573352.6 0.537023068669 Long EC CORP US N 1 N N N SCHNEIDER ELECTRIC SE N/A COMMON STOCK EUR4.0 483410007 18628 NS 2616015.38 2.45025592812 Long EC CORP FR N 2 N N N SEKISUI CHEMICAL CO LTD N/A COMMON STOCK 679382002 29700 NS 413967.43 0.387737074163 Long EC CORP JP N 2 N N N SELECT MEDICAL HOLDINGS CORP N/A COMMON STOCK USD.001 81619Q105 5986 NS USD 148632.38 0.139214537112 Long EC CORP US N 1 N N N SEVERN TRENT PLC N/A COMMON STOCK GBP.9789 B1FH8J905 38131 NS 1218213.73 1.141023648588 Long EC CORP GB N 2 N N N SHIMIZU CORP N/A COMMON STOCK 680440005 149700 NS 798788.32 0.748174430226 Long EC CORP JP N 2 N N N SINGAPORE TELECOMMUNICATIONS N/A COMMON STOCK B02PY2901 126500 NS 242537.45 0.227169468955 Long EC CORP SG N 2 N N N SK TELECOM N/A COMMON STOCK KRW100.0 622487908 26185 NS 982300.11 0.920058301691 Long EC CORP KR N 2 N N N SL GREEN REALTY CORP N/A REIT USD.01 78440X887 11183 NS USD 377090.76 0.353197032859 Long RE RF US N 1 SMITH (A.O.) CORP N/A COMMON STOCK USD1.0 831865209 4575 NS USD 261873 0.245279854075 Long EC CORP US N 1 N N N SOFTBANK CORP N/A COMMON STOCK BF5M0K909 101400 NS 1147205.53 1.074514764762 Long EC CORP JP N 2 N N N SOLAREDGE TECHNOLOGIES INC N/A COMMON STOCK USD.0001 83417M104 1649 NS USD 467112.23 0.437514442539 Long EC CORP IL N 1 N N N SOLARIA ENERGIA Y MEDIO AMBI N/A COMMON STOCK EUR.01 B1YVKJ909 28258 NS 518025.53 0.485201706192 Long EC CORP ES N 2 N N N SONIC HEALTHCARE LTD N/A COMMON STOCK 682112909 27615 NS 561993.56 0.526383775296 Long EC CORP AU N 2 N N N SSC GOVERNMENT MM GVMXX N/A SSC GOVERNMENT MM GVMXX 7839989D1 1279340.41 NS USD 1279340.41 1.19827713845 Long STIV CORP US N 1 N N N SSE PLC N/A COMMON STOCK GBP.5 079087003 72764 NS 1496532.53 1.401707241973 Long EC CORP GB N 2 N N N SUNNOVA ENERGY INTERNATIONAL N/A COMMON STOCK USD.001 86745K104 15658 NS USD 282000.58 0.264132083535 Long EC CORP US N 1 SUNRUN INC N/A COMMON STOCK USD.0001 86771W105 10265 NS USD 246565.3 0.230942100957 Long EC CORP US N 1 N N N SWISSCOM AG REG N/A COMMON STOCK CHF1.0 553397902 783 NS 428936.18 0.401757354282 Long EC CORP CH N 2 N N N SYSCO CORP N/A COMMON STOCK USD1.0 871829107 15955 NS USD 1219759.75 1.142471707609 Long EC CORP US N 1 N N N TAIWAN SEMICONDUCTOR SP ADR N/A ADR 874039100 19485 NS USD 1451437.65 1.35946972384 Long EC CORP TW N 1 N N N TE CONNECTIVITY LTD N/A COMMON STOCK CHF.57 H84989104 3811 NS USD 437502.8 0.409781164692 Long EC CORP US N 1 N N N TELE2 AB B SHS N/A COMMON STOCK SEK1.25 B97C73904 95962 NS 782842.17 0.733238681427 Long EC CORP SE N 2 N N N TELEFONICA SA N/A COMMON STOCK EUR1. 573252905 253958 NS 919354.62 0.861101247692 Long EC CORP ES N 2 N N N TELENOR ASA N/A COMMON STOCK NOK6. 473249902 85444 NS 798300.72 0.747717726187 Long EC CORP NO N 2 N N N TELIA CO AB N/A COMMON STOCK SEK3.2 597838903 294939 NS 753648.21 0.705894548017 Long EC CORP SE N 2 N N N TELSTRA GROUP LTD N/A COMMON STOCK 608728903 131804 NS 356456.04 0.33386979748 Long EC CORP AU N 2 N N N UNION PACIFIC CORP N/A COMMON STOCK USD2.5 907818108 6608 NS USD 1368318.56 1.281617336362 Long EC CORP US N 1 N N N UNITED RENTALS INC N/A COMMON STOCK USD.01 911363109 1506 NS USD 535262.52 0.501346503066 Long EC CORP US N 1 N N N UNITED UTILITIES GROUP PLC N/A COMMON STOCK GBP.05 B39J2M903 100603 NS 1202037.55 1.125872445257 Long EC CORP GB N 2 N N N VENTAS INC N/A REIT USD.25 92276F100 18260 NS USD 822613 0.770489499109 Long RE RF US N 1 N N N VEOLIA ENVIRONNEMENT N/A COMMON STOCK EUR5.0 403187909 45511 NS 1169378.3 1.095282594168 Long EC CORP FR N 2 N N N VERBUND AG N/A COMMON STOCK 466160009 13840 NS 1163387.17 1.089671082129 Long EC CORP AT N 2 N N N VERIZON COMMUNICATIONS INC N/A COMMON STOCK USD.1 92343V104 35949 NS USD 1416390.6 1.326643371716 Long EC CORP US N 1 N N N VERTIV HOLDINGS CO N/A COMMON STOCK USD.0001 92537N108 29191 NS USD 398749.06 0.373482990799 Long EC CORP US N 1 N N N VISA INC CLASS A SHARES N/A COMMON STOCK USD.0001 92826C839 832 NS USD 172856.32 0.161903567552 Long EC CORP US N 1 N N N VMWARE INC CLASS A W/I N/A COMMON STOCK USD.01 928563402 2080 NS USD 255340.8 0.239161556035 Long EC CORP US N 1 N N N VODAFONE GROUP PLC N/A COMMON STOCK USD.2095238 ACI07KLY6 888490 NS 899788.88 0.842775258178 Long EC CORP GB N 2 N N N VOLTRONIC POWER TECHNOLOGY N/A COMMON STOCK TWD10.0 B96HCH907 11000 NS 551888.65 0.516919146066 Long EC CORP TW N 2 N N N WASTE MANAGEMENT INC N/A COMMON STOCK USD.01 94106L109 14385 NS USD 2256718.8 2.113725576721 Long EC CORP US N 1 N N N WATSCO INC N/A COMMON STOCK USD.5 942622200 2184 NS USD 544689.6 0.510176251863 Long EC CORP US N 1 N N N WATTS WATER TECHNOLOGIES A N/A COMMON STOCK USD.1 942749102 3621 NS USD 529498.83 0.495948019671 Long EC CORP US N 1 N N N WELLTOWER INC N/A REIT USD1.0 95040Q104 7354 NS USD 482054.7 0.451510107847 Long RE RF US N 1 N N N WEST JAPAN RAILWAY CO N/A COMMON STOCK 695799908 14200 NS 616554.16 0.577487233866 Long EC CORP JP N 2 N N N XINJIANG GOLDWIND SCI+TEC H N/A COMMON STOCK CNY1.0 B59GZJ905 707000 NS 626725.21 0.587013812245 Long EC CORP CN N 2 N N N XINYI SOLAR HOLDINGS LTD N/A COMMON STOCK HKD.1 BGQYNN907 1027389 NS 1130482.23 1.058851108778 Long EC CORP CN N 2 N N N XYLEM INC N/A COMMON STOCK 98419M100 8476 NS USD 937191.32 0.877807754943 Long EC CORP US N 1 N N N 2023-02-28 Impax Funds Series Trust I /s/ Alicia DuBois Alicia DuBois Treasurer