NPORT-P false 0000742212 XXXXXXXX S000000040 C000000075 NORTHWESTERN MUTUAL SERIES FUND INC 811-03990 0000742212 549300T1UBX7MDSNZA55 720 E WISCONSIN AVE MILWAUKEE 53202 414-271-1444 Large Cap Core Stock Portfolio S000000040 VR6JA5TLPSU3FJG4YL55 2025-12-31 2025-03-31 N 707191745.93 293912.85 706897833.08 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 1868182.21000000 N FMC Corp CKDHZ2X64EEBQCSP7013 302491303 30248.00000000 NS USD 1276163.12000000 0.180530065347 Long EC CORP US N 1 N N N EQT Corp 4NT01YGM4X7ZX86ISY52 26884L109 34900.00000000 NS USD 1864707.00000000 0.263787341358 Long EC CORP US N 1 N N N Shell PLC 21380068P1DRHMJ8KU70 780259305 114113.00000000 NS USD 8362200.64000000 1.182943312128 Long EC CORP GB N 1 N N N Intuit Inc VI90HBPH7XSFMB9E4M29 461202103 10525.00000000 NS USD 6462244.75000000 0.914169551467 Long EC CORP US N 1 N N N American Electric Power Co Inc 1B4S6S7G0TW5EE83BO58 025537101 46242.00000000 NS USD 5052863.34000000 0.714794006084 Long EC CORP US N 1 N N N Alnylam Pharmaceuticals Inc 529900S3ZI14OWRJII50 02043Q107 1894.00000000 NS USD 511417.88000000 0.072346788470 Long EC CORP US N 1 N N N Vistra Corp 549300KP43CPCUJOOG15 92840M102 14694.00000000 NS USD 1725663.36000000 0.244117788914 Long EC CORP US N 1 N N N Welltower Inc 254900F33BIAR82QTA19 95040Q104 40718.00000000 NS USD 6238404.78000000 0.882504442377 Long EC US N 1 N N N Chipotle Mexican Grill Inc N/A 169656105 54125.00000000 NS USD 2717616.25000000 0.384442577530 Long EC CORP US N 1 N N N Pool Corp 5493005VZK1KMN6CO617 73278L105 10429.00000000 NS USD 3320072.15000000 0.469667891827 Long EC CORP US N 1 N N N Atlassian Corp 549300V7ZY5P02D2MY38 049468101 9379.00000000 NS USD 1990317.59000000 0.281556612124 Long EC CORP US N 1 N N N Vertex Pharmaceuticals Inc 54930015RAQRRZ5ZGJ91 92532F100 6010.00000000 NS USD 2913768.20000000 0.412190851866 Long EC CORP US N 1 N N N Johnson & Johnson 549300G0CFPGEF6X2043 478160104 22196.00000000 NS USD 3680984.64000000 0.520723712500 Long EC CORP US N 1 N N N UnitedHealth Group Inc 549300GHBMY8T5GXDE41 91324P102 18964.00000000 NS USD 9932395.00000000 1.405067965299 Long EC CORP US N 1 N N N Philip Morris International Inc HL3H1H2BGXWVG3BSWR90 718172109 36482.00000000 NS USD 5790787.86000000 0.819183139205 Long EC CORP US N 1 N N N Wells Fargo & Co PBLD0EJDB5FWOLXP3B76 949746101 279756.00000000 NS USD 20083683.24000000 2.841101259639 Long EC CORP US N 1 N N N Marathon Petroleum Corp 3BNYRYQHD39K4LCKQF12 56585A102 27991.00000000 NS USD 4078008.79000000 0.576888002645 Long EC CORP US N 1 N N N NextEra Energy Inc 254900RHL9MEUS5NKX63 65339F101 22032.00000000 NS USD 1561848.48000000 0.220944018627 Long EC CORP US N 1 N N N DR Horton Inc 529900ZIUEYVSB8QDD25 23331A109 7277.00000000 NS USD 925125.01000000 0.130871105654 Long EC CORP US N 1 N N N Zscaler Inc 529900MZ0RTK1BWRNF46 98980G102 20293.00000000 NS USD 4026537.06000000 0.569606649161 Long EC CORP US N 1 N N N AbbVie Inc FR5LCKFTG8054YNNRU85 00287Y109 18073.00000000 NS USD 3786654.96000000 0.535672169696 Long EC CORP US N 1 N N N Costco Wholesale Corp 29DX7H14B9S6O3FD6V18 22160K105 3114.00000000 NS USD 2945158.92000000 0.416631482256 Long EC CORP US N 1 N N N Everest Group Ltd 549300N24XF2VV0B3570 000000000 11796.00000000 NS USD 4285840.68000000 0.606288558181 Long EC CORP BM N 1 N N N Uber Technologies Inc 549300B2FTG34FILDR98 90353T100 163618.00000000 NS USD 11921207.48000000 1.686411659809 Long EC CORP US N 1 N N N Arch Capital Group Ltd 549300AYR4P8AFKDCE43 000000000 21584.00000000 NS USD 2075949.12000000 0.293670318800 Long EC CORP BM N 1 N N N Agilent Technologies Inc QUIX8Y7A2WP0XRMW7G29 00846U101 25084.00000000 NS USD 2934326.32000000 0.415099068448 Long EC CORP US N 1 N N N HubSpot Inc 529900BLNVEW0MVKJB37 443573100 5790.00000000 NS USD 3307769.10000000 0.467927463518 Long EC CORP US N 1 N N N Omnicom Group Inc HKUPACFHSSASQK8HLS17 681919106 28402.00000000 NS USD 2354809.82000000 0.333118834123 Long EC CORP US N 1 N N N Spotify Technology SA 549300B4X0JHWV0DTD60 000000000 3058.00000000 NS USD 1681991.74000000 0.237939863625 Long EC CORP LU N 1 N N N General Dynamics Corp 9C1X8XOOTYY2FNYTVH06 369550108 4752.00000000 NS USD 1295300.16000000 0.183237251464 Long EC CORP US N 1 N N N US Foods Holding Corp 549300UGOZSO64CFPR97 912008109 77587.00000000 NS USD 5078845.02000000 0.718469456593 Long EC CORP US N 1 N N N Celanese Corp 549300FHJQTDPPN41627 150870103 23302.00000000 NS USD 1322854.54000000 0.187135181082 Long EC CORP US N 1 N N N PPG Industries Inc 549300BKPEP01R3V6C59 693506107 19206.00000000 NS USD 2100176.10000000 0.297097543905 Long EC CORP US N 1 N N N Atmos Energy Corp QVLWEGTD2S8GJMO8D383 049560105 26268.00000000 NS USD 4060507.44000000 0.574412206401 Long EC CORP US N 1 N N N Marriott International Inc/MD 225YDZ14ZO8E1TXUSU86 571903202 19670.00000000 NS USD 4685394.00000000 0.662810632702 Long EC CORP US N 1 N N N Casey's General Stores Inc 549300CAFWSI86V66Q65 147528103 4653.00000000 NS USD 2019588.12000000 0.285697313740 Long EC CORP US N 1 N N N Nucor Corp 549300GGJCRSI2TIEJ46 670346105 7073.00000000 NS USD 851164.82000000 0.120408463595 Long EC CORP US N 1 N N N Unilever PLC 549300MKFYEKVRWML317 904767704 90299.00000000 NS USD 5377305.45000000 0.760690611622 Long EC CORP GB N 1 N N N Enphase Energy Inc 5493008U7KIGMI59Z314 29355A107 19492.00000000 NS USD 1209478.60000000 0.171096662544 Long EC CORP US N 1 N N N Centene Corp 549300Z7JJ4TQSQGT333 15135B101 16782.00000000 NS USD 1018835.22000000 0.144127647917 Long EC CORP US N 1 N N N Alphabet Inc 5493006MHB84DD0ZWV18 02079K305 143794.00000000 NS USD 22236304.16000000 3.145617813413 Long EC CORP US N 1 N N N Crown Holdings Inc NYLWZIOY8PUNIT4JOE22 228368106 13913.00000000 NS USD 1241874.38000000 0.175679471896 Long EC CORP US N 1 N N N Boston Scientific Corp Y6ZDD9FP4P8JSSJMW954 101137107 61271.00000000 NS USD 6181018.48000000 0.874386395141 Long EC CORP US N 1 N N N Elevance Health Inc 8MYN82XMYQH89CTMTH67 036752103 3859.00000000 NS USD 1678510.64000000 0.237447416225 Long EC CORP US N 1 N N N Lennar Corp 529900G61XVRLX5TJX09 526057104 7538.00000000 NS USD 865211.64000000 0.122395571115 Long EC CORP US N 1 N N N Lam Research Corp 549300I4GMO6D34U1T02 512807306 68391.00000000 NS USD 4972025.70000000 0.703358458228 Long EC CORP US N 1 N N N NXP Semiconductors NV 724500M9BY5293JDF951 000000000 27892.00000000 NS USD 5301153.52000000 0.749917919100 Long EC CORP NL N 1 N N N GSK PLC 5493000HZTVUYLO1D793 37733W204 66374.00000000 NS USD 2571328.76000000 0.363748287188 Long EC CORP GB N 1 N N N Procter & Gamble Co/The 2572IBTT8CCZW6AU4141 742718109 3745.00000000 NS USD 638222.90000000 0.090285027076 Long EC CORP US N 1 N N N United Therapeutics Corp 5299005C4HZL4UWROC14 91307C102 2520.00000000 NS USD 776840.40000000 0.109894296409 Long EC CORP US N 1 N N N Royal Caribbean Cruises Ltd K2NEH8QNVW44JIWK7Z55 000000000 10313.00000000 NS USD 2118702.72000000 0.299718378081 Long EC CORP LR N 1 N N N IDEX Corp 549300U5Y5EL6PHYLF13 45167R104 14257.00000000 NS USD 2580089.29000000 0.364987579429 Long EC CORP US N 1 N N N Microsoft Corp INR2EJN1ERAN0W5ZP974 594918104 103675.00000000 NS USD 38918558.25000000 5.505542163063 Long EC CORP US N 1 N N N Align Technology Inc 549300N5YSE0U3LCP840 016255101 1507.00000000 NS USD 239402.02000000 0.033866565831 Long EC CORP US N 1 N N N Targa Resources Corp 5493003QENHHS261UR94 87612G101 24147.00000000 NS USD 4840749.09000000 0.684787654378 Long EC CORP US N 1 N N N Vertiv Holdings Co 549300KTTIRAOGXCRV69 92537N108 29467.00000000 NS USD 2127517.40000000 0.300965330552 Long EC CORP US N 1 N N N Intercontinental Exchange Inc 5493000F4ZO33MV32P92 45866F104 24100.00000000 NS USD 4157250.00000000 0.588097714472 Long EC CORP US N 1 N N N NVIDIA Corp 549300S4KLFTLO7GSQ80 67066G104 395972.00000000 NS USD 42915445.36000000 6.070954436656 Long EC CORP US N 1 N N N Johnson Controls International plc 549300XQ6S1GYKGBL205 000000000 9794.00000000 NS USD 784597.34000000 0.110991617640 Long EC CORP IE N 1 N N N Novo Nordisk A/S 549300DAQ1CVT6CXN342 670100205 17662.00000000 NS USD 1226449.28000000 0.173497388534 Long EC CORP DK N 1 N N N AstraZeneca PLC PY6ZZQWO2IZFZC3IOL08 046353108 25048.00000000 NS USD 1841028.00000000 0.260437635234 Long EC CORP GB N 1 N N N SPDR S&P 500 ETF Trust 549300NZAMSJ8FXPQQ63 78462F103 10721.00000000 NS USD 5997220.19000000 0.848385708564 Long EC RF US N 1 N N N Sempra PBBKGKLRK5S5C0Y4T545 816851109 44514.00000000 NS USD 3176519.04000000 0.449360415515 Long EC CORP US N 1 N N N O'Reilly Automotive Inc 549300K2RLMQL149Q332 67103H107 3099.00000000 NS USD 4439565.42000000 0.628034945397 Long EC CORP US N 1 N N N EMCOR Group Inc 529900X0SQJB2J7YDU43 29084Q100 2119.00000000 NS USD 783245.97000000 0.110800448572 Long EC CORP US N 1 N N N Linde PLC 5299003QR1WT0EF88V51 000000000 12729.00000000 NS USD 5927131.56000000 0.838470749609 Long EC CORP IE N 1 N N N Marsh & McLennan Cos Inc 549300XMP3KDCKJXIU47 571748102 25582.00000000 NS USD 6242775.46000000 0.883122732573 Long EC CORP US N 1 N N N Walmart Inc Y87794H0US1R65VBXU25 931142103 38843.00000000 NS USD 3410026.97000000 0.482393184760 Long EC CORP US N 1 N N N Coca-Cola Co/The UWJKFUJFZ02DKWI3RY53 191216100 88449.00000000 NS USD 6334717.38000000 0.896129126948 Long EC CORP US N 1 N N N MongoDB Inc 549300TPTG69WKWE1Z37 60937P106 19935.00000000 NS USD 3496599.00000000 0.494639937537 Long EC CORP US N 1 N N N Ares Management Corp 529900JUV61FH7B8VW38 03990B101 35169.00000000 NS USD 5156127.09000000 0.729402022288 Long EC CORP US N 1 N N N Millrose Properties Inc N/A 601137102 1729.00000000 NS USD 45835.79000000 0.006484075612 Long EC US N 1 N N N Airbnb Inc 549300HMUDNO0RY56D37 009066101 11179.00000000 NS USD 1335443.34000000 0.188916032488 Long EC CORP US N 1 N N N PACCAR Inc KDTEY8BWE486IKZ3CC07 693718108 44465.00000000 NS USD 4329557.05000000 0.612472813947 Long EC CORP US N 1 N N N Exxon Mobil Corp J3WHBG0MTS7O8ZVMDC91 30231G102 124353.00000000 NS USD 14789302.29000000 2.092141409680 Long EC CORP US N 1 N N N Palantir Technologies Inc 549300UVN46B3BBDHO85 69608A108 7316.00000000 NS USD 617470.40000000 0.087349312885 Long EC CORP US N 1 N N N TJX Cos Inc/The V167QI9I69W364E2DY52 872540109 32224.00000000 NS USD 3924883.20000000 0.555226373081 Long EC CORP US N 1 N N N Monster Beverage Corp 52990090AP0E7HCB6F33 61174X109 11357.00000000 NS USD 664611.64000000 0.094018061578 Long EC CORP US N 1 N N N Berkshire Hathaway Inc 5493000C01ZX7D35SD85 084670702 34956.00000000 NS USD 18616866.48000000 2.633600728253 Long EC CORP US N 1 N N N Netflix Inc 549300Y7VHGU0I7CE873 64110L106 9533.00000000 NS USD 8889808.49000000 1.257580384886 Long EC CORP US N 1 N N N Intuitive Surgical Inc 54930052SRG011710797 46120E602 10718.00000000 NS USD 5308303.86000000 0.750929428779 Long EC CORP US N 1 N N N Mastercard Inc AR5L2ODV9HN37376R084 57636Q104 37923.00000000 NS USD 20786354.76000000 2.940503392043 Long EC CORP US N 1 N N N Broadcom Inc 549300WV6GIDOZJTV909 11135F101 101642.00000000 NS USD 17017920.06000000 2.407408717869 Long EC CORP US N 1 N N N Amgen Inc 62QBXGPJ34PQ72Z12S66 031162100 2990.00000000 NS USD 931534.50000000 0.131777812352 Long EC CORP US N 1 N N N Bank of America Corp 9DJT3UXIJIZJI4WXO774 060505104 44702.00000000 NS USD 1865414.46000000 0.263887420884 Long EC CORP US N 1 N N N Tesla Inc 54930043XZGB27CTOV49 88160R101 17511.00000000 NS USD 4538150.76000000 0.641981138947 Long EC CORP US N 1 N N N Labcorp Holdings Inc N/A 504922105 4883.00000000 NS USD 1136469.42000000 0.160768553363 Long EC CORP US N 1 N N N Camden Property Trust 5493002MYX22OHYJBD89 133131102 25970.00000000 NS USD 3176131.00000000 0.449305522151 Long EC US N 1 N N N PG&E Corp 8YQ2GSDWYZXO2EDN3511 69331C108 312147.00000000 NS USD 5362685.46000000 0.758622421663 Long EC CORP US N 1 N N N Abbott Laboratories HQD377W2YR662HK5JX27 002824100 9474.00000000 NS USD 1256726.10000000 0.177780443112 Long EC CORP US N 1 N N N Domino's Pizza Inc 25490005ZWM1IF9UXU57 25754A201 6117.00000000 NS USD 2810455.65000000 0.397575932260 Long EC CORP US N 1 N N N Flex Ltd 549300EAQH74YHD07T53 000000000 116023.00000000 NS USD 3838040.84000000 0.542941378569 Long EC CORP SG N 1 N N N ServiceNow Inc 549300HJTQM36M0E1G39 81762P102 11188.00000000 NS USD 8907214.32000000 1.260042668569 Long EC CORP US N 1 N N N Deere & Co PWFTNG3EI0Y73OXWDH08 244199105 5727.00000000 NS USD 2687967.45000000 0.380248364645 Long EC CORP US N 1 N N N AerCap Holdings NV 549300SZYINBBLJQU475 000000000 13208.00000000 NS USD 1349461.36000000 0.190899065869 Long EC CORP NL N 1 N N N Meta Platforms Inc BQ4BKCS1HXDV9HN80Z93 30303M102 10248.00000000 NS USD 5906537.28000000 0.835557417719 Long EC CORP US N 1 N N N First Solar Inc 549300NPYMLM4NHTOF27 336433107 8414.00000000 NS USD 1063782.02000000 0.150485964197 Long EC CORP US N 1 N N N Waste Connections Inc 549300HDLRTPBQU69P29 94106B101 13225.00000000 NS USD 2581387.75000000 0.365171263682 Long EC CORP CA N 1 N N N Molina Healthcare Inc 549300NQQCEQ46YHZ591 60855R100 3519.00000000 NS USD 1159123.41000000 0.163973258334 Long EC CORP US N 1 N N N RTX Corp I07WOS4YJ0N7YRFE7309 75513E101 16546.00000000 NS USD 2191683.16000000 0.310042421611 Long EC CORP US N 1 N N N Edwards Lifesciences Corp YA13X31F3V31L8TMPR58 28176E108 66405.00000000 NS USD 4813034.40000000 0.680867046802 Long EC CORP US N 1 N N N KKR & Co Inc 54930013V5I303TF9571 48251W104 56212.00000000 NS USD 6498669.32000000 0.919322286176 Long EC CORP US N 1 N N N Argenx SE 7245009C5FZE6G9ODQ71 04016X101 1834.00000000 NS USD 1085480.41000000 0.153555486974 Long EC CORP NL N 1 N N N Boeing Co/The RVHJWBXLJ1RFUBSY1F30 097023105 20768.00000000 NS USD 3541982.40000000 0.501060016631 Long EC CORP US N 1 N N N Cencora Inc AI8GXW8LG5WK7E9UD086 03073E105 15031.00000000 NS USD 4179970.79000000 0.591311869183 Long EC CORP US N 1 N N N Starbucks Corp OQSJ1DU9TAOC51A47K68 855244109 43470.00000000 NS USD 4263972.30000000 0.603194988082 Long EC CORP US N 1 N N N Emerson Electric Co FGLT0EWZSUIRRITFOA30 291011104 5612.00000000 NS USD 615299.68000000 0.087042235979 Long EC CORP US N 1 N N N Ingersoll Rand Inc 5299004C02FMZCUOIR50 45687V106 14211.00000000 NS USD 1137306.33000000 0.160886945295 Long EC CORP US N 1 N N N SAP SE 529900D6BF99LW9R2E68 803054204 18451.00000000 NS USD 4952986.44000000 0.700665104378 Long EC CORP DE N 1 N N N HCA Healthcare Inc 529900PH4ZGUH2MNEU89 40412C101 5250.00000000 NS USD 1814137.50000000 0.256633620178 Long EC CORP US N 1 N N N KLA Corp 549300H0BF5JCG96TJ81 482480100 7507.00000000 NS USD 5103258.60000000 0.721923078723 Long EC CORP US N 1 N N N Northrop Grumman Corp RIMU48P07456QXSO0R61 666807102 4555.00000000 NS USD 2332205.55000000 0.329921162700 Long EC CORP US N 1 N N N Haleon PLC 549300PSB3WWEODCUP19 405552100 521471.00000000 NS USD 5365936.59000000 0.759082336781 Long EC CORP GB N 1 N N N Humana Inc 529900YLDW34GJAO4J06 444859102 5820.00000000 NS USD 1539972.00000000 0.217849302676 Long EC CORP US N 1 N N N Kroger Co/The 6CPEOKI6OYJ13Q6O7870 501044101 39374.00000000 NS USD 2665226.06000000 0.377031295793 Long EC CORP US N 1 N N N Fortive Corp 549300MU9YQJYHDQEF63 34959J108 26554.00000000 NS USD 1943221.72000000 0.274894281615 Long EC CORP US N 1 N N N Church & Dwight Co Inc POOXSI30AWAQGYJZC921 171340102 3485.00000000 NS USD 383663.65000000 0.054274271619 Long EC CORP US N 1 N N N Synopsys Inc QG7T915N9S0NY5UKNE63 871607107 17143.00000000 NS USD 7351775.55000000 1.040005387761 Long EC CORP US N 1 N N N Apple Inc HWUPKR0MPOU8FGXBT394 037833100 185632.00000000 NS USD 41234436.16000000 5.833153566242 Long EC CORP US N 1 N N N Danaher Corp S4BKK9OTCEWQ3YHPFM11 235851102 20734.00000000 NS USD 4250470.00000000 0.601284910081 Long EC CORP US N 1 N N N Builders FirstSource Inc 549300W0SKP6L3H7DP63 12008R107 4437.00000000 NS USD 554358.78000000 0.078421343800 Long EC CORP US N 1 N N N Clean Harbors Inc 5493000SJVZVZJKHJF48 184496107 24310.00000000 NS USD 4791501.00000000 0.677820864031 Long EC CORP US N 1 N N N T-Mobile US Inc 549300QHIJYOHPACPG31 872590104 46747.00000000 NS USD 12467892.37000000 1.763747430894 Long EC CORP US N 1 N N N Deckers Outdoor Corp 5493008LG4W3I6K8J118 243537107 3588.00000000 NS USD 401174.28000000 0.056751380641 Long EC CORP US N 1 N N N Performance Food Group Co 549300EUK8GR9IT1YK57 71377A103 21376.00000000 NS USD 1680794.88000000 0.237770552029 Long EC CORP US N 1 N N N Merck & Co Inc 4YV9Y5M8S0BRK1RP0397 58933Y105 71066.00000000 NS USD 6378884.16000000 0.902377099135 Long EC CORP US N 1 N N N Equinix Inc 549300EVUN2BTLJ3GT74 29444U700 4378.00000000 NS USD 3569602.30000000 0.504967214915 Long EC US N 1 N N N Flutter Entertainment PLC 635400EG4YIJLJMZJ782 000000000 7626.00000000 NS USD 1689540.30000000 0.239007706762 Long EC CORP IE N 1 N N N Eli Lilly & Co FRDRIPF3EKNDJ2CQJL29 532457108 14916.00000000 NS USD 12319273.56000000 1.742723344662 Long EC CORP US N 1 N N N JPMorgan Chase & Co 8I5DZWZKVSZI1NUHU748 46625H100 8100.00000000 NS USD 1986930.00000000 0.281077392944 Long EC CORP US N 1 N N N Amazon.com Inc ZXTILKJKG63JELOEG630 023135106 170913.00000000 NS USD 32517907.38000000 4.600085876387 Long EC CORP US N 1 N N N American Express Co R4PP93JZOLY261QX3811 025816109 36166.00000000 NS USD 9730462.30000000 1.376501927810 Long EC CORP US N 1 N N N CH Robinson Worldwide Inc 529900WNWN5L0OVDHA79 12541W209 59883.00000000 NS USD 6132019.20000000 0.867454802242 Long EC CORP US N 1 N N N American International Group Inc ODVCVCQG2BP6VHV36M30 026874784 68546.00000000 NS USD 5959389.24000000 0.843034022898 Long EC CORP US N 1 N N N Gilead Sciences Inc 549300WTZWR07K8MNV44 375558103 22062.00000000 NS USD 2472047.10000000 0.349703590012 Long EC CORP US N 1 N N N 2025-04-25 NORTHWESTERN MUTUAL SERIES FUND INC Linda Wisniewski Linda Wisniewski Controller and Chief Accounting Officer XXXX