# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-016300
**Filing Date:** 2026-2
**Character Count:** 38873
**Document Hash:** 479bea0d0b5a4f7b6e47e425041c4830
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-016300.hdr.sgml**: 20260223

**ACCESSION NUMBER**: 0001410368-26-016300

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260223

**DATE AS OF CHANGE**: 20260223

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NORTHWESTERN MUTUAL SERIES FUND INC
- **CENTRAL INDEX KEY:** 0000742212

**ORGANIZATION NAME:**
- **EIN:** 391603401
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03990
- **FILM NUMBER:** 26664740

**BUSINESS ADDRESS:**
- **STREET 1:** 720 E WISCONSIN AVE
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202
- **BUSINESS PHONE:** 4142992508

**MAIL ADDRESS:**
- **STREET 1:** 720 EAST WISCONSIN AVE
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NORTHWESTERN MUTUAL VARIABLE LIFE SERIES FUND INC
- **DATE OF NAME CHANGE:** 19940830

## Series and Classes Contracts Data

### Mid Cap Growth Stock Portfolio (Series ID: S000000050)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000085 | Mid Cap Growth Stock Portfolio |  |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** NORTHWESTERN MUTUAL SERIES FUND INC

- **b. Investment Company Act file number:** 811-03990

- **c. CIK number of Registrant:** 0000742212

- **d. LEI of Registrant:** 549300T1UBX7MDSNZA55

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 720 E WISCONSIN AVE

  - **City:** MILWAUKEE

  - **State:** WI

  - **Foreign country:** US

  - **Zip / Postal Code:** 53202

  - **Telephone number:** 414-271-1444

**Item A.2. Information about the Series.**

- **a. Name of Series:** Mid Cap Growth Stock Portfolio

- **b. EDGAR series identifier (if any):** S000000050

- **c. LEI of Series:** LIP0ME8UWTR611J45283

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-12-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $1032494476.11

**Total Liabilities:** $525381.98

**Net Assets:** $1031969094.13

**Cash Not Reported:** $8613370.52

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000085 | 0.95%                | -2.27%               | -1.64%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $3138999.81              | $7361716.62                                |
| Month 2  | $-4491839.95             | $-20170970.66                              |
| Month 3  | $5977355.39              | $-23282352.87                              |

### Schedule of Portfolio Investments

| Name                                 | Title                                | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Affirm Holdings Inc                  | Affirm Holdings Inc                  | CUSIP: 00827B106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     55755 | NS      | $4149844.65   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilent Technologies Inc             | Agilent Technologies Inc             | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |     43339 | NS      | $5897137.73   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Alnylam Pharmaceuticals Inc          | Alnylam Pharmaceuticals Inc          | CUSIP: 02043Q107<br>LEI: 529900S3ZI14OWRJII50 | Long             | EC               | CORP              | US        |     55989 | NS      | $22264025.85  | 2.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Cencora Inc                          | Cencora Inc                          | CUSIP: 03073E105<br>LEI: AI8GXW8LG5WK7E9UD086 | Long             | EC               | CORP              | US        |     67612 | NS      | $22835953.00  | 2.21%             |  |  |  | No            |                  1 | On Loan: No      |
| AMETEK Inc                           | AMETEK Inc                           | CUSIP: 031100100<br>LEI: 549300WZDEF9KKE40E98 | Long             | EC               | CORP              | US        |     38222 | NS      | $7847358.82   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Arcellx Inc                          | Arcellx Inc                          | CUSIP: 03940C100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     38157 | NS      | $2487836.40   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Ares Management Corp                 | Ares Management Corp                 | CUSIP: 03990B101<br>LEI: 529900JUV61FH7B8VW38 | Long             | EC               | CORP              | US        |     95341 | NS      | $15409965.83  | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| AutoZone Inc                         | AutoZone Inc                         | CUSIP: 053332102<br>LEI: GA3JGKJ41LJKXDN23E90 | Long             | EC               | CORP              | US        |      2379 | NS      | $8068378.50   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Axon Enterprise Inc                  | Axon Enterprise Inc                  | CUSIP: 05464C101<br>LEI: 549300QP2IEEGFE16681 | Long             | EC               | CORP              | US        |     19201 | NS      | $10904823.93  | 1.06%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies Inc                 | BWX Technologies Inc                 | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |     36579 | NS      | $6322314.36   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Bright Horizons Family Solutions Inc | Bright Horizons Family Solutions Inc | CUSIP: 109194100<br>LEI: 2549009BKSVTM7UEYT38 | Long             | EC               | CORP              | US        |     43281 | NS      | $4388693.40   | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadridge Financial Solutions Inc   | Broadridge Financial Solutions Inc   | CUSIP: 11133T103<br>LEI: 549300KZDJZQ2YIHRC28 | Long             | EC               | CORP              | US        |     47754 | NS      | $10657260.18  | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Burlington Stores Inc                | Burlington Stores Inc                | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |     44134 | NS      | $12748105.90  | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| CBRE Group Inc                       | CBRE Group Inc                       | CUSIP: 12504L109<br>LEI: 52990016II9MJ2OSWA10 | Long             | EC               | CORP              | US        |     79848 | NS      | $12838759.92  | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Caris Life Sciences Inc              | Caris Life Sciences Inc              | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |     84522 | NS      | $2280403.56   | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Carlisle Cos Inc                     | Carlisle Cos Inc                     | CUSIP: 142339100<br>LEI: XR64VGX1ZPX6G7ZN7Z11 | Long             | EC               | CORP              | US        |     15493 | NS      | $4955590.98   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Carvana Co                           | Carvana Co                           | CUSIP: 146869102<br>LEI: 5493003WEAK2PJ5WS063 | Long             | EC               | CORP              | US        |     59508 | NS      | $25113566.16  | 2.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Casey's General Stores Inc           | Casey's General Stores Inc           | CUSIP: 147528103<br>LEI: 549300CAFWSI86V66Q65 | Long             | EC               | CORP              | US        |     17877 | NS      | $9880796.67   | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Cheniere Energy Inc                  | Cheniere Energy Inc                  | CUSIP: 16411R208<br>LEI: MIHC87W9WTYSYZWV1J40 | Long             | EC               | CORP              | US        |     51097 | NS      | $9932745.83   | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Chipotle Mexican Grill Inc           | Chipotle Mexican Grill Inc           | CUSIP: 169656105<br>LEI: 529900REP5VGTPCP1J71 | Long             | EC               | CORP              | US        |    101109 | NS      | $3741033.00   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Ciena Corp                           | Ciena Corp                           | CUSIP: 171779309<br>LEI: W0CZ7N0GH8UIGXDM1H41 | Long             | EC               | CORP              | US        |     44270 | NS      | $10353424.90  | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Cloudflare Inc                       | Cloudflare Inc                       | CUSIP: 18915M107<br>LEI: 5493007DY18BGNLDWU14 | Long             | EC               | CORP              | US        |    104369 | NS      | $20576348.35  | 1.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Coinbase Global Inc                  | Coinbase Global Inc                  | CUSIP: 19260Q107<br>LEI: 5493004G3J2SC154DU06 | Long             | EC               | CORP              | US        |     23331 | NS      | $5276072.34   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Comfort Systems USA Inc              | Comfort Systems USA Inc              | CUSIP: 199908104<br>LEI: 5299009DT1ZA5HTU6R38 | Long             | EC               | CORP              | US        |     19688 | NS      | $18374613.52  | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Corcept Therapeutics Inc             | Corcept Therapeutics Inc             | CUSIP: 218352102<br>LEI: 529900EO9LUTFMZ7FF90 | Long             | EC               | CORP              | US        |     31062 | NS      | $1080957.60   | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Coupang Inc                          | Coupang Inc                          | CUSIP: 22266T109<br>LEI: 549300XR4L1D80AK4W76 | Long             | EC               | CORP              | US        |    200825 | NS      | $4737461.75   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Crown Castle Inc                     | Crown Castle Inc                     | CUSIP: 22822V101<br>LEI: 54930012H97VSM0I2R19 | Long             | EC               |  | US        |     54590 | NS      | $4851413.30   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Datadog Inc                          | Datadog Inc                          | CUSIP: 23804L103<br>LEI: 549300F6JNO0KRPO1K63 | Long             | EC               | CORP              | US        |     90407 | NS      | $12294447.93  | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Dexcom Inc                           | Dexcom Inc                           | CUSIP: 252131107<br>LEI: 549300YSK3QDSFR5EU59 | Long             | EC               | CORP              | US        |    152516 | NS      | $10122486.92  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Disc Medicine Inc                    | Disc Medicine Inc                    | CUSIP: 254604101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     32988 | NS      | $2619577.08   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| DoorDash Inc                         | DoorDash Inc                         | CUSIP: 25809K105<br>LEI: 549300NUQ43FGGSK5051 | Long             | EC               | CORP              | US        |     34192 | NS      | $7743804.16   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| EOG Resources Inc                    | EOG Resources Inc                    | CUSIP: 26875P101<br>LEI: XWTZDRYZPBUHIQBKDB46 | Long             | EC               | CORP              | US        |     62153 | NS      | $6526686.53   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Eagle Materials Inc                  | Eagle Materials Inc                  | CUSIP: 26969P108<br>LEI: 529900KRXRGXL61SG039 | Long             | EC               | CORP              | US        |     27543 | NS      | $5692587.24   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Esab Corp                            | Esab Corp                            | CUSIP: 29605J106<br>LEI: 549300ZNV0SWBXEIWT04 | Long             | EC               | CORP              | US        |     45477 | NS      | $5080690.44   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Figma Inc                            | Figma Inc                            | CUSIP: 316841105<br>LEI: 254900273Q0J4Z65HU28 | Long             | EC               | CORP              | US        |     39563 | NS      | $1478469.31   | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Arthur J Gallagher & Co              | Arthur J Gallagher & Co              | CUSIP: 363576109<br>LEI: 54930049QLLMPART6V29 | Long             | EC               | CORP              | US        |     25272 | NS      | $6540140.88   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Gartner Inc                          | Gartner Inc                          | CUSIP: 366651107<br>LEI: PP55B5R38BFB8O8HH686 | Long             | EC               | CORP              | US        |     15087 | NS      | $3806148.36   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| HEICO Corp                           | HEICO Corp                           | CUSIP: 422806208<br>LEI: 529900O1DTDLCJ7L0I14 | Long             | EC               | CORP              | US        |     58306 | NS      | $14718183.58  | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings Inc        | Hilton Worldwide Holdings Inc        | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |    110242 | NS      | $31667014.50  | 3.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Howmet Aerospace Inc                 | Howmet Aerospace Inc                 | CUSIP: 443201108<br>LEI: 549300HO5WFZUT5N2T22 | Long             | EC               | CORP              | US        |    125398 | NS      | $25709097.96  | 2.49%             |  |  |  | No            |                  1 | On Loan: No      |
| HubSpot Inc                          | HubSpot Inc                          | CUSIP: 443573100<br>LEI: 529900BLNVEW0MVKJB37 | Long             | EC               | CORP              | US        |     30098 | NS      | $12078327.40  | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| iRhythm Technologies Inc             | iRhythm Technologies Inc             | CUSIP: 450056106<br>LEI: 549300FJI72RJGDQS384 | Long             | EC               | CORP              | US        |     19166 | NS      | $3400815.04   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                              | ITT Inc                              | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |     56685 | NS      | $9835414.35   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| IDEXX Laboratories Inc               | IDEXX Laboratories Inc               | CUSIP: 45168D104<br>LEI: OGMTXK0LUU1HKV2P0J84 | Long             | EC               | CORP              | US        |     17086 | NS      | $11559191.58  | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingersoll Rand Inc                   | Ingersoll Rand Inc                   | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |     54257 | NS      | $4298239.54   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Insmed Inc                           | Insmed Inc                           | CUSIP: 457669307<br>LEI: 529900Q55QAG41CCAC11 | Long             | EC               | CORP              | US        |    132559 | NS      | $23070568.36  | 2.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Interactive Brokers Group Inc        | Interactive Brokers Group Inc        | CUSIP: 45841N107<br>LEI: 5493004DT6DCDUZNDM53 | Long             | EC               | CORP              | US        |     75373 | NS      | $4847237.63   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Ionis Pharmaceuticals Inc            | Ionis Pharmaceuticals Inc            | CUSIP: 462222100<br>LEI: 549300SI4ZGLG0BLUZ92 | Long             | EC               | CORP              | US        |     69304 | NS      | $5482639.44   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| IQVIA Holdings Inc                   | IQVIA Holdings Inc                   | CUSIP: 46266C105<br>LEI: 549300W3R20NM4KQPH86 | Long             | EC               | CORP              | US        |     32989 | NS      | $7436050.49   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| LPL Financial Holdings Inc           | LPL Financial Holdings Inc           | CUSIP: 50212V100<br>LEI: 549300XROQ4Y8G2L7682 | Long             | EC               | CORP              | US        |     25501 | NS      | $9108192.17   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Levi Strauss & Co                    | Levi Strauss & Co                    | CUSIP: 52736R102<br>LEI: MB0UERO0RDFKU8258G77 | Long             | EC               | CORP              | US        |    187377 | NS      | $3886198.98   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Live Nation Entertainment Inc        | Live Nation Entertainment Inc        | CUSIP: 538034109<br>LEI: 5493007B9BM9ZXJINO78 | Long             | EC               | CORP              | US        |     39571 | NS      | $5638867.50   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| MSCI Inc                             | MSCI Inc                             | CUSIP: 55354G100<br>LEI: 549300HTIN2PD78UB763 | Long             | EC               | CORP              | US        |     20600 | NS      | $11818838.00  | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Mettler-Toledo International Inc     | Mettler-Toledo International Inc     | CUSIP: 592688105<br>LEI: 5493000BD5GJNUDIUG10 | Long             | EC               | CORP              | US        |      3317 | NS      | $4624528.23   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| MongoDB Inc                          | MongoDB Inc                          | CUSIP: 60937P106<br>LEI: 549300TPTG69WKWE1Z37 | Long             | EC               | CORP              | US        |     29156 | NS      | $12236481.64  | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Monolithic Power Systems Inc         | Monolithic Power Systems Inc         | CUSIP: 609839105<br>LEI: 529900TB7O85LSZ1XU31 | Long             | EC               | CORP              | US        |     10392 | NS      | $9418893.12   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Natera Inc                           | Natera Inc                           | CUSIP: 632307104<br>LEI: 529900CQ3OZ0A0VYVU59 | Long             | EC               | CORP              | US        |     72266 | NS      | $16555417.94  | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Neurocrine Biosciences Inc           | Neurocrine Biosciences Inc           | CUSIP: 64125C109<br>LEI: 549300FECER0XBN49756 | Long             | EC               | CORP              | US        |     91105 | NS      | $12921422.15  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Nutanix Inc                          | Nutanix Inc                          | CUSIP: 67059N108<br>LEI: 549300X7J6E8TKVIXW09 | Long             | EC               | CORP              | US        |     79770 | NS      | $4123311.30   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuvalent Inc                         | Nuvalent Inc                         | CUSIP: 670703107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     51953 | NS      | $5225952.27   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Okta Inc                             | Okta Inc                             | CUSIP: 679295105<br>LEI: 549300N8J06I8MRHU620 | Long             | EC               | CORP              | US        |     60941 | NS      | $5269568.27   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| ON Semiconductor Corp                | ON Semiconductor Corp                | CUSIP: 682189105<br>LEI: ZV20P4CNJVT8V1ZGJ064 | Long             | EC               | CORP              | US        |     33460 | NS      | $1811859.00   | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Penumbra Inc                         | Penumbra Inc                         | CUSIP: 70975L107<br>LEI: 549300RGE06P3ECANU72 | Long             | EC               | CORP              | US        |     29569 | NS      | $9193297.79   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Performance Food Group Co            | Performance Food Group Co            | CUSIP: 71377A103<br>LEI: 549300EUK8GR9IT1YK57 | Long             | EC               | CORP              | US        |    100430 | NS      | $9030665.60   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Planet Fitness Inc                   | Planet Fitness Inc                   | CUSIP: 72703H101<br>LEI: 549300LLE5HUPF6H8G33 | Long             | EC               | CORP              | US        |     81104 | NS      | $8797350.88   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Quanta Services Inc                  | Quanta Services Inc                  | CUSIP: 74762E102<br>LEI: SHVRXXEACT60MMH07S24 | Long             | EC               | CORP              | US        |     53258 | NS      | $22478071.48  | 2.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Rambus Inc                           | Rambus Inc                           | CUSIP: 750917106<br>LEI: 2549000211GDCQSLV833 | Long             | EC               | CORP              | US        |     51965 | NS      | $4775063.85   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Raymond James Financial Inc          | Raymond James Financial Inc          | CUSIP: 754730109<br>LEI: RGUZHJ05YTITL6D76949 | Long             | EC               | CORP              | US        |     54009 | NS      | $8673305.31   | 0.84%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                           | Reddit Inc                           | CUSIP: 75734B100<br>LEI: 529900APN1YHPBHPI679 | Long             | EC               | CORP              | US        |     78141 | NS      | $17962271.67  | 1.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Rhythm Pharmaceuticals Inc           | Rhythm Pharmaceuticals Inc           | CUSIP: 76243J105<br>LEI: 529900JPNWXQ8DPLA551 | Long             | EC               | CORP              | US        |     40578 | NS      | $4343469.12   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Robinhood Markets Inc                | Robinhood Markets Inc                | CUSIP: 770700102<br>LEI: 213800FS5AO3YWIE6F63 | Long             | EC               | CORP              | US        |    105553 | NS      | $11938044.30  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| ROBLOX Corp                          | ROBLOX Corp                          | CUSIP: 771049103<br>LEI: 529900ANZDBDFU91SO19 | Long             | EC               | CORP              | US        |    184075 | NS      | $14915597.25  | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Rocket Cos Inc                       | Rocket Cos Inc                       | CUSIP: 77311W101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    419707 | NS      | $8125527.52   | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Rocket Lab Corp                      | Rocket Lab Corp                      | CUSIP: 773121108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    174553 | NS      | $12176817.28  | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Rubrik Inc                           | Rubrik Inc                           | CUSIP: 781154109<br>LEI: 254900TRGK2WTBYMYU27 | Long             | EC               | CORP              | US        |     45148 | NS      | $3452919.04   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Snowflake Inc                        | Snowflake Inc                        | CUSIP: 833445109<br>LEI: 254900CJNSY1K7T53Z16 | Long             | EC               | CORP              | US        |     36534 | NS      | $8014098.24   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| TPG Inc                              | TPG Inc                              | CUSIP: 872657101<br>LEI: 549300NLO4R8MX77XJ02 | Long             | EC               | CORP              | US        |     86471 | NS      | $5520308.64   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Take-Two Interactive Software Inc    | Take-Two Interactive Software Inc    | CUSIP: 874054109<br>LEI: BOMSTHHJK882EWYX3334 | Long             | EC               | CORP              | US        |     60592 | NS      | $15513369.76  | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Teledyne Technologies Inc            | Teledyne Technologies Inc            | CUSIP: 879360105<br>LEI: 549300VSMO9KYQWDND94 | Long             | EC               | CORP              | US        |     13505 | NS      | $6897408.65   | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Somnigroup International Inc         | Somnigroup International Inc         | CUSIP: 88023U101<br>LEI: 549300HFEKVR3US71V91 | Long             | EC               | CORP              | US        |    144635 | NS      | $12913012.80  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Teradyne Inc                         | Teradyne Inc                         | CUSIP: 880770102<br>LEI: C3X4YJ278QNZHRJULN75 | Long             | EC               | CORP              | US        |     52382 | NS      | $10139059.92  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Thor Industries Inc                  | Thor Industries Inc                  | CUSIP: 885160101<br>LEI: 254900XZO1228PDSG060 | Long             | EC               | CORP              | US        |     50066 | NS      | $5140276.22   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets Inc                 | Tradeweb Markets Inc                 | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     59173 | NS      | $6363464.42   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Twilio Inc                           | Twilio Inc                           | CUSIP: 90138F102<br>LEI: 5493004W8TRGD63APX93 | Long             | EC               | CORP              | US        |     56571 | NS      | $8046659.04   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyler Technologies Inc               | Tyler Technologies Inc               | CUSIP: 902252105<br>LEI: 25490040SMU4Z8LBCW70 | Long             | EC               | CORP              | US        |      8622 | NS      | $3913956.90   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Ulta Beauty Inc                      | Ulta Beauty Inc                      | CUSIP: 90384S303<br>LEI: 529900CIV6HN8M28YM82 | Long             | EC               | CORP              | US        |     21142 | NS      | $12791121.42  | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Ultragenyx Pharmaceutical Inc        | Ultragenyx Pharmaceutical Inc        | CUSIP: 90400D108<br>LEI: 529900EV44GVDN1DCX77 | Long             | EC               | CORP              | US        |    134758 | NS      | $3099434.00   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems Inc                    | Veeva Systems Inc                    | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |     62263 | NS      | $13898969.49  | 1.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Veralto Corp                         | Veralto Corp                         | CUSIP: 92338C103<br>LEI: 635400FJE6GSOJUSNY27 | Long             | EC               | CORP              | US        |     58823 | NS      | $5869358.94   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertiv Holdings Co                   | Vertiv Holdings Co                   | CUSIP: 92537N108<br>LEI: 549300KTTIRAOGXCRV69 | Long             | EC               | CORP              | US        |    120731 | NS      | $19559629.31  | 1.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Vistra Corp                          | Vistra Corp                          | CUSIP: 92840M102<br>LEI: 549300KP43CPCUJOOG15 | Long             | EC               | CORP              | US        |    133324 | NS      | $21509160.92  | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Williams Cos Inc/The                 | Williams Cos Inc/The                 | CUSIP: 969457100<br>LEI: D71FAKCBLFS2O0RBPG08 | Long             | EC               | CORP              | US        |    205611 | NS      | $12359277.21  | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop Inc                         | Wingstop Inc                         | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |     14444 | NS      | $3444749.56   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Wynn Resorts Ltd                     | Wynn Resorts Ltd                     | CUSIP: 983134107<br>LEI: 254900CEKKWIHTEAB172 | Long             | EC               | CORP              | US        |     42501 | NS      | $5114145.33   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Alkermes PLC                         | Alkermes PLC                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | IE        |    178149 | NS      | $4984609.02   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Credo Technology Group Holding Ltd   | Credo Technology Group Holding Ltd   | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     25719 | NS      | $3700706.91   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Fabrinet                             | Fabrinet                             | CUSIP: 000000000<br>LEI: 5493004TETZ6IYF7CV44 | Long             | EC               | CORP              | KY        |     14553 | NS      | $6625689.84   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Flutter Entertainment PLC            | Flutter Entertainment PLC            | CUSIP: 000000000<br>LEI: 635400EG4YIJLJMZJ782 | Long             | EC               | CORP              | IE        |     85197 | NS      | $18320762.88  | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| FTAI Aviation Ltd                    | FTAI Aviation Ltd                    | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |     59307 | NS      | $11674582.95  | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| James Hardie Industries PLC          | James Hardie Industries PLC          | CUSIP: 000000000<br>LEI: 635400NSGXKTVOO7JU45 | Long             | EC               | CORP              | IE        |    234303 | NS      | $4861787.25   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| TechnipFMC PLC                       | TechnipFMC PLC                       | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |     92502 | NS      | $4121889.12   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Trane Technologies PLC               | Trane Technologies PLC               | CUSIP: 000000000<br>LEI: 549300BURLR9SLYY2705 | Long             | EC               | CORP              | IE        |     15485 | NS      | $6026762.00   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Garmin Ltd                           | Garmin Ltd                           | CUSIP: 000000000<br>LEI: 2549001E0HIPIJQ0W046 | Long             | EC               | CORP              | CH        |     22194 | NS      | $4502052.90   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| On Holding AG                        | On Holding AG                        | CUSIP: 000000000<br>LEI: 506700FB3467B9W95526 | Long             | EC               | CORP              | CH        |    204793 | NS      | $9518778.64   | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| CyberArk Software Ltd                | CyberArk Software Ltd                | CUSIP: 000000000<br>LEI: 529900YEXNDM894PWS93 | Long             | EC               | CORP              | IL        |     15718 | NS      | $7011171.08   | 0.68%             |  |  |  | No            |                  1 | On Loan: No      |
| JFrog Ltd                            | JFrog Ltd                            | CUSIP: 000000000<br>LEI: 2549002N8E00AY49G567 | Long             | EC               | CORP              | IL        |     87546 | NS      | $5468123.16   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Monday.com Ltd                       | Monday.com Ltd                       | CUSIP: 000000000<br>LEI: 984500MDAFVD86E3B328 | Long             | EC               | CORP              | IL        |     22825 | NS      | $3368057.00   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| uniQure NV                           | uniQure NV                           | CUSIP: 000000000<br>LEI: 724500RPCTZLFYJZ3S98 | Long             | EC               | CORP              | NL        |     48207 | NS      | $1153593.51   | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Royal Caribbean Cruises Ltd          | Royal Caribbean Cruises Ltd          | CUSIP: 000000000<br>LEI: K2NEH8QNVW44JIWK7Z55 | Long             | EC               | CORP              | LR        |    106687 | NS      | $29757138.04  | 2.88%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-01-15

**Name of Applicant:** NORTHWESTERN MUTUAL SERIES FUND INC

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer