Holdings of Small Cap Growth Stock Portfolio
NORTHWESTERN MUTUAL SERIES FUND INC ·175 declared positions · as of Mar 31, 2026
Original filing · Net assets 732.8M $ · Ten largest lines: 14.3 % of the equity sleeve
Sector breakdown
- Industrials 3.3 %
- Technology 2.9 %
- Materials 0.8 %
- Health care 0.8 %
- Unattributed 92.3 %
Titelia classification, company by company. The unattributed share stays visible.
Currency breakdown
- USD 100.0 %
The quoted currency of each line, as declared.
Country breakdown
- US 94.0 %
- CA 1.3 %
- GB 1.1 %
- BM 1.1 %
- KY 1.1 %
- GG 0.8 %
- IE 0.6 %
Shares computed on the equity sleeve.
| Rank | Country | Lines | Value | Share |
|---|---|---|---|---|
| 1 | US | 165 | 687.9M $ | 94.04 % |
| 2 | CA | 3 | 9.3M $ | 1.28 % |
| 3 | GB | 1 | 8.3M $ | 1.13 % |
| 4 | BM | 2 | 8.3M $ | 1.13 % |
| 5 | KY | 1 | 7.9M $ | 1.08 % |
| 6 | GG | 2 | 5.8M $ | 0.79 % |
| 7 | IE | 1 | 4.1M $ | 0.55 % |
Positions
| Rank | Company | Shares | Value | Weight |
|---|---|---|---|---|
| 101 | TETRA Technologies Inc | 409,709 | 3.5M $ | 0.48 % |
| 102 | Hyatt Hotels Corp | 24,227 | 3.5M $ | 0.48 % |
| 103 | Mercury Systems Inc | 47,361 | 3.5M $ | 0.47 % |
| 104 | Akamai Technologies Inc | 29,603 | 3.4M $ | 0.46 % |
| 105 | AtriCure Inc | 119,028 | 3.4M $ | 0.46 % |
| 106 | IRhythm Holdings Inc | 28,380 | 3.3M $ | 0.46 % |
| 107 | Benchmark Electronics Inc | 59,272 | 3.3M $ | 0.45 % |
| 108 | Cytokinetics Inc | 48,084 | 3.2M $ | 0.43 % |
| 109 | Casella Waste Systems Inc | 39,584 | 3.1M $ | 0.43 % |
| 110 | Coeur Mining Inc | 166,884 | 3.1M $ | 0.43 % |
| 111 | Ivanhoe Electric Inc / US | 263,678 | 3.1M $ | 0.43 % |
| 112 | StepStone Group Inc | 65,030 | 3.1M $ | 0.42 % |
| 113 | Innodata Inc | 80,080 | 3.1M $ | 0.42 % |
| 114 | Semtech Corp | 39,682 | 3.1M $ | 0.42 % |
| 115 | MNTN Inc | 345,671 | 3M $ | 0.42 % |
| 116 | ATI Inc | 20,746 | 3M $ | 0.41 % |
| 117 | Solaris Energy Infrastructure Inc | 52,876 | 3M $ | 0.41 % |
| 118 | Mirion Technologies Inc | 160,189 | 3M $ | 0.41 % |
| 119 | TransMedics Group Inc | 29,852 | 3M $ | 0.40 % |
| 120 | Uranium Energy Corp | 218,190 | 2.9M $ | 0.40 % |
| 121 | Acadia Healthcare Co Inc | 125,212 | 2.9M $ | 0.40 % |
| 122 | BILL Holdings Inc | 75,571 | 2.9M $ | 0.39 % |
| 123 | Commvault Systems Inc | 37,062 | 2.9M $ | 0.39 % |
| 124 | Power Integrations Inc | 56,352 | 2.9M $ | 0.39 % |
| 125 | Travere Therapeutics Inc | 95,985 | 2.9M $ | 0.39 % |
| 126 | Freshpet Inc | 48,202 | 2.8M $ | 0.39 % |
| 127 | WisdomTree Inc | 194,600 | 2.8M $ | 0.39 % |
| 128 | IonQ Inc | 97,726 | 2.8M $ | 0.38 % |
| 129 | Boot Barn Holdings Inc | 18,842 | 2.8M $ | 0.38 % |
| 130 | SiriusPoint Ltd | 126,783 | 2.7M $ | 0.37 % |
| 131 | Revolution Medicines Inc | 28,046 | 2.7M $ | 0.37 % |
| 132 | Upwork Inc | 247,928 | 2.7M $ | 0.37 % |
| 133 | Celldex Therapeutics Inc | 85,138 | 2.7M $ | 0.37 % |
| 134 | HealthEquity Inc | 31,888 | 2.7M $ | 0.36 % |
| 135 | Lantheus Holdings Inc | 34,098 | 2.6M $ | 0.35 % |
| 136 | Cabot Corp | 33,663 | 2.5M $ | 0.35 % |
| 137 | Porch Group Inc | 349,865 | 2.5M $ | 0.34 % |
| 138 | GeneDx Holdings Corp | 38,566 | 2.5M $ | 0.34 % |
| 139 | Guardian Pharmacy Services Inc | 65,200 | 2.5M $ | 0.34 % |
| 140 | Magnite Inc | 201,253 | 2.4M $ | 0.33 % |
| 141 | Installed Building Products Inc | 8,952 | 2.4M $ | 0.32 % |
| 142 | CBIZ Inc | 88,390 | 2.4M $ | 0.32 % |
| 143 | Vericel Corp | 73,322 | 2.4M $ | 0.32 % |
| 144 | Figure Technology Solutions Inc | 69,096 | 2.3M $ | 0.32 % |
| 145 | Vaxcyte Inc | 40,203 | 2.3M $ | 0.32 % |
| 146 | Agilysys Inc | 32,804 | 2.3M $ | 0.32 % |
| 147 | Structure Therapeutics Inc | 47,654 | 2.3M $ | 0.31 % |
| 148 | Coherent Corp | 9,422 | 2.2M $ | 0.31 % |
| 149 | Soleno Therapeutics Inc | 66,796 | 2.2M $ | 0.31 % |
| 150 | Boise Cascade Co | 29,371 | 2.2M $ | 0.30 % |
| 151 | Viridian Therapeutics Inc | 111,485 | 2.2M $ | 0.30 % |
| 152 | Insight Enterprises Inc | 30,774 | 2.1M $ | 0.28 % |
| 153 | Polaris Inc | 37,764 | 2.1M $ | 0.28 % |
| 154 | Rigetti Computing Inc | 144,104 | 2M $ | 0.28 % |
| 155 | YETI Holdings Inc | 54,964 | 2M $ | 0.27 % |
| 156 | Planet Labs PBC | 71,501 | 2M $ | 0.27 % |
| 157 | Gulfport Energy Corp | 9,217 | 2M $ | 0.27 % |
| 158 | Riot Platforms Inc | 157,292 | 1.9M $ | 0.27 % |
| 159 | Century Aluminum Co | 28,835 | 1.7M $ | 0.23 % |
| 160 | Applied Optoelectronics Inc | 17,701 | 1.5M $ | 0.20 % |
| 161 | Loar Holdings Inc | 25,393 | 1.5M $ | 0.20 % |
| 162 | Janux Therapeutics Inc | 102,751 | 1.4M $ | 0.19 % |
| 163 | Wealthfront Corp | 152,800 | 1.4M $ | 0.19 % |
| 164 | Energy Fuels Inc/Canada | 74,164 | 1.4M $ | 0.18 % |
| 165 | York Space Systems Inc | 59,692 | 1.3M $ | 0.18 % |
| 166 | RH INC | 8,281 | 1.2M $ | 0.16 % |
| 167 | Genius Sports Ltd | 247,596 | 1.1M $ | 0.15 % |
| 168 | Sezzle Inc | 16,357 | 1M $ | 0.14 % |
| 169 | Dianthus Therapeutics Inc | 12,200 | 1M $ | 0.14 % |
| 170 | Ultragenyx Pharmaceutical Inc | 42,300 | 886.2K $ | 0.12 % |
| 171 | Smith Douglas Homes Corp | 65,013 | 832.2K $ | 0.11 % |
| 172 | Hims & Hers Health Inc | 28,592 | 593.6K $ | 0.08 % |
| 173 | EquipmentShare.com Inc | 20,100 | 409.4K $ | 0.06 % |
| 174 | Corvus Pharmaceuticals Inc | 21,800 | 318.9K $ | 0.04 % |
| 175 | Eos Energy Enterprises Inc | 64,106 | 318K $ | 0.04 % |