# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-053242
**Filing Date:** 2026-5
**Character Count:** 33427
**Document Hash:** d605ff03001431a9dcdc348a76c23ffa
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-053242.hdr.sgml**: 20260527

**ACCESSION NUMBER**: 0001410368-26-053242

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260527

**DATE AS OF CHANGE**: 20260527

**PERIOD START**: 20261231

**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:** 261024805

**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

### Growth Stock Portfolio (Series ID: S000000056)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000000091 | Growth Stock Portfolio |  |

## Nport-Ex

Growth Stock Portfolio

SCHEDULE OF INVESTMENTS

**March 31, 2026 (unaudited)** 

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (99.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Communication Services (16.0%)** | **Communication Services (16.0%)** |  |
|  Alphabet, Inc. - Class A | 72192 | 20760 |
|  Alphabet, Inc. - Class C | 280956 | 80595 |
|  Meta Platforms, Inc. - Class A | 112915 | 64602 |
|  Netflix, Inc. \* | 312075 | 30006 |
|  T-Mobile US, Inc. | 62574 | 13142 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **209105** |
|  **Consumer Discretionary (16.2%)** | **Consumer Discretionary (16.2%)** |  |
|  Amazon.com, Inc. \* | 421773 | 87843 |
|  Booking Holdings, Inc. | 2727 | 11482 |
|  Carvana Co. \* | 147584 | 46397 |
|  Chipotle Mexican Grill, Inc. \* | 178460 | 5712 |
|  DoorDash, Inc. - Class A \* | 28889 | 4338 |
|  Ross Stores, Inc. | 36349 | 7874 |
|  Sea, Ltd., ADR \* | 61693 | 5109 |
|  Tesla, Inc. \* | 97549 | 36264 |
|  The TJX Cos., Inc. | 45738 | 7304 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **212323** |
|  **Consumer Staples (0.8%)** | **Consumer Staples (0.8%)** |  |
|  Colgate-Palmolive Co. | 52796 | 4500 |
|  Mondelez International, Inc. | 43853 | 2527 |
|  The Procter & Gamble Co. | 23186 | 3349 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **10376** |
|  **Financials (8.1%)** |  |  |
|  Adyen NV \* | 1763 | 1764 |
|  The Charles Schwab Corp. | 45145 | 4243 |
|  Chubb, Ltd. | 42806 | 13952 |
|  The Goldman Sachs Group, Inc. | 6977 | 5902 |
|  Marsh & McLennan Cos., Inc. | 23773 | 4123 |
|  Mastercard, Inc. - Class A | 58061 | 29011 |
|  Moody's Corp. | 8873 | 3871 |
|  Morgan Stanley | 37864 | 6231 |
|  Visa, Inc. - Class A | 121549 | 36737 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **105834** |
|  **Health Care (6.6%)** |  |  |
|  Danaher Corp. | 36377 | 6897 |
|  Eli Lilly & Co. | 42398 | 38996 |
|  Intuitive Surgical, Inc. \* | 37449 | 17264 |
|  Medline, Inc. - Class A \* | 31454 | 1400 |
|  Stryker Corp. | 18119 | 5954 |
|  Thermo Fisher Scientific, Inc. | 15354 | 7547 |

---

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (99.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Health Care continued** |  |  |
|  UnitedHealth Group, Inc. | 29995 | 8116 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **86174** |
|  **Industrials (3.6%)** |  |  |
|  Cintas Corp. | 17472 | 2955 |
|  GE Vernova, Inc. | 14810 | 12928 |
|  General Electric Co. | 85917 | 24381 |
|  Old Dominion Freight Line, Inc. | 17804 | 3479 |
|  TransDigm Group, Inc. | 2694 | 3122 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **46865** |
|  **Information Technology (46.9%)** | **Information Technology (46.9%)** |  |
|  Apple, Inc. | 474049 | 120309 |
|  ASML Holding NV | 11602 | 15324 |
|  Broadcom, Inc. | 207341 | 64174 |
|  CrowdStrike Holdings, Inc. \* | 11997 | 4684 |
|  Datadog, Inc. - Class A \* | 15958 | 1884 |
|  Microsoft Corp. | 290699 | 107608 |
|  Monolithic Power Systems, Inc. | 7903 | 8641 |
|  NVIDIA Corp. | 1254885 | 218852 |
|  Oracle Corp. | 79208 | 11652 |
|  Palantir Technologies, Inc. - Class A \* | 25748 | 3766 |
|  Roper Technologies, Inc. | 11883 | 4205 |
|  ServiceNow, Inc. \* | 140057 | 14643 |
|  Shopify, Inc. - Class A \* | 87641 | 10396 |
|  Synopsys, Inc. \* | 15954 | 6326 |
|  Taiwan Semiconductor Manufacturing Co., Ltd., ADR | 28955 | 9785 |
|  TE Connectivity PLC | 31159 | 6513 |
|  Texas Instruments, Inc. | 19338 | 3754 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **612516** |
|  **Materials (0.8%)** |  |  |
|  Linde PLC | 10351 | 5132 |
|  The Sherwin-Williams Co. | 14957 | 4794 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **9926** |

---

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (99.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Utilities (0.5%)** |  |  |
|  Constellation Energy Corp. | 22767 | 6358 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **6358** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Common Stocks<br>(Cost: $615,830)** |  | **1299477** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (99.5%)<br>(Cost: $615,830)<sup>@</sup>** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (99.5%)<br>(Cost: $615,830)<sup>@</sup>** | **1299477** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Other Assets, Less Liabilities (0.5%)** |  | **6581** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Net Assets (100.0%)** |  | **1306058** |

---

**1** 

------

Growth Stock Portfolio

+ All par is stated in U.S. Dollar unless otherwise noted.

\* Non income producing

---

| | |
|:---|:---|
| @ | At March 31, 2026, the aggregate cost of investments, including derivatives, for federal tax purposes (in thousands) was $615,830 and the net unrealized appreciation of investments based on that cost was $683,647 which is comprised of $716,245 aggregate gross unrealized appreciation and $32,598 aggregate gross unrealized depreciation. Because tax adjustments are calculated annually, these amounts do not reflect tax adjustments. For the previous fiscal year's federal income tax information, please refer to the Notes to the Financial Statements section in the Portfolio's most recent annual report.  |

---

The Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification defines fair value as the price that a Fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. It establishes and requires disclosure of a fair value hierarchy, separately for each major category of asset and liability, which segregates fair value measurements into levels. A summary of the fair value hierarchy is described below:

Level 1 - fair value is determined by unadjusted quoted prices in active markets for identical securities or derivatives

Level 2 - fair value is determined by other significant observable inputs

Level 3 - fair value is determined by significant unobservable inputs

The categorization of a value determined for a financial instrument within the hierarchy is based upon the pricing transparency of the instrument and does not necessarily correspond to the Portfolio's perceived risk of that instrument.

The following is a summary of the inputs used in valuing the Portfolio's Investments at March 31, 2026.

---

| | | | |
|:---|:---|:---|:---|
|  | Valuation Inputs | Valuation Inputs | Valuation Inputs |
| **Description** | **Level 1 - Quoted<br>Prices** | **Level 2 - Other<br>Significant<br> Observable Inputs** | **Level 3**<br> **- Significant<br>Unobservable<br>Inputs** |
|  | *(Amounts in thousands)* | *(Amounts in thousands)* |  |
|  Assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Common Stocks |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financials | $104070 | $1764 | $— |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; All Others | 1193643 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Assets: | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1297713 | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1764 | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— |

---

**2** 

------

Abbreviations (unaudited)

**Abbreviations that may be used in the preceding statements** 

---

| | |
|:---|:---|
| ADR | American Depositary Receipt |
| AFC | Available Funds Cap security - Security accrues interest at an assumed or uncapped rate. If the interest rate on the |
|  | underlying loans is lower than the uncapped rate, then the security will pay at the lower rate. |
| CSTR | Collateral Strip Rate security - interest is based on the weighted net interest rate of the collateral. |
| IO | Interest Only Security |
| PO | Principal Only Security |
| GDR | Global Depositary Receipt |
| RB | Revenue Bond |
| CPURNSA | U.S. Consumer Price Index - All Urban Consumers - Not Seasonally Adjusted |
| IBOR | Interbank Offered Rate |
| LIBOR | London Interbank Offered Rate |
| SOFR | Secured Overnight Financing Rate |
| CME | Chicago Mercantile Exchange |
| ICE | Intercontinental Exchange |
| FTSE | Financial Times Stock Exchange |
| SONIO | Sterling Overnight Interbank Average Rate |
| DAC | Designated Activity Company |
| TBA | To Be Announced |
| CMT | Constant Maturity Treasury |
| OIS | Overnight Index Swaps |
| BBR | Bank Bill Rate |
| BBSW | Bank Bill Swap Reference Rate |
| DIFC | Dubai International Financial Centre |
| BRL-CDI | Brazil Interbank Deposit Rate |
| CAONREPO | Canadian Overnight Repo Rate Average |
| JIBAR | Johannesburg Interbank Agreed Rate |
| EURIBOR | Euro Interbank Offered Rate |
| PRIBOR | Prague Interbank Offered Rate |
| ETF | Exchange Traded Fund |
| **Currency Abbreviations** | **Currency Abbreviations** |
| AED | United Arab Emirates Dirham |
| AUD | Australian Dollar |
| BRL | Brazilian Real |
| CAD | Canadian Dollar |
| CHF | Swiss Franc |
| CNH | Chinese Yuan Renminbi - Offshore |
| CNY | Chinese Yuan Renminbi |
| COP | Colombian Peso |
| CZK | Czech Koruna |
| DKK | Danish Krone |
| EGP | Egyptian Pound |
| EUR | Euro |
| GBP | British Pound |
| HKD | Hong Kong Dollar |
| IDR | Indonesian Rupiah |
| ILS | Israeli Shekel |
| INR | Indian Rupee |
| JPY | Japanese Yen |
| KRW | South Korean Won |
| KWD | Kuwaiti Dinar |
| KZT | Kazakhstani Tenge |
| MXN | Mexican New Peso |
| NOK | Norwegian Krone |
| NZD | New Zealand Dollar |
| PEN | Peruvian Sol |
| PLN | Polish Zloty |
| PYG | Paraguayan Guarani |
| RUB | Russian Ruble |
| SAR | Saudi Riyal |
| SEK | Swedish Krona |
| SGD | Singapore Dollar |
| THB | Thai Baht |
| TRY | Turkish Lira |
| TWD | Taiwan Dollar |
| USD | United States Dollar |
| ZAR | South African Rand |

---

**1**

## 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:** Growth Stock Portfolio

- **b. EDGAR series identifier (if any):** S000000056

- **c. LEI of Series:** SZG5ML0R3BIC0KK1SI27

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

- **a. Date of fiscal year-end:** 2026-12-31

- **b. Date as of which information is reported:** 2026-03-31

**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:** $1307933993.23

**Total Liabilities:** $522165.70

**Net Assets:** $1307411827.53

**Cash Not Reported:** $6001711.88

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000091 | -1.56%               | -4.59%               | -5.33%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $7191166.29              | $-30268121.84                              |
| Month 2  | $6169596.43              | $-73512386.70                              |
| Month 3  | $8487215.79              | $-82253819.58                              |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Alphabet Inc                              | Alphabet Inc                              | CUSIP: 02079K107<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    280956 | NS      | $80595038.16  | 6.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                              | Alphabet Inc                              | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     72192 | NS      | $20759531.52  | 1.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                            | Amazon.com Inc                            | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    421773 | NS      | $87842662.71  | 6.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Apple Inc                                 | Apple Inc                                 | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |    474049 | NS      | $120308895.71 | 9.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Booking Holdings Inc                      | Booking Holdings Inc                      | CUSIP: 09857L108<br>LEI: FXM8FAOHMYDIPD38UZ17 | Long             | EC               | CORP              | US        |      2727 | NS      | $11481542.64  | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadcom Inc                              | Broadcom Inc                              | CUSIP: 11135F101<br>LEI: 549300WV6GIDOZJTV909 | Long             | EC               | CORP              | US        |    211564 | NS      | $65481173.64  | 5.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Carvana Co                                | Carvana Co                                | CUSIP: 146869102<br>LEI: 5493003WEAK2PJ5WS063 | Long             | EC               | CORP              | US        |    147584 | NS      | $46397457.92  | 3.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Chipotle Mexican Grill Inc                | Chipotle Mexican Grill Inc                | CUSIP: 169656105<br>LEI: 529900REP5VGTPCP1J71 | Long             | EC               | CORP              | US        |    178460 | NS      | $5712504.60   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Cintas Corp                               | Cintas Corp                               | CUSIP: 172908105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     17472 | NS      | $2955214.08   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Colgate-Palmolive Co                      | Colgate-Palmolive Co                      | CUSIP: 194162103<br>LEI: YMEGZFW4SBUSS5BQXF88 | Long             | EC               | CORP              | US        |     52796 | NS      | $4499803.08   | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Constellation Energy Corp                 | Constellation Energy Corp                 | CUSIP: 21037T109<br>LEI: 549300F8Y20RYGNGV346 | Long             | EC               | CORP              | US        |     22767 | NS      | $6357684.75   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Crowdstrike Holdings Inc                  | Crowdstrike Holdings Inc                  | CUSIP: 22788C105<br>LEI: 549300YBY08K9KM4HX32 | Long             | EC               | CORP              | US        |     11997 | NS      | $4683748.77   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Danaher Corp                              | Danaher Corp                              | CUSIP: 235851102<br>LEI: S4BKK9OTCEWQ3YHPFM11 | Long             | EC               | CORP              | US        |     36377 | NS      | $6897079.20   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Datadog Inc                               | Datadog Inc                               | CUSIP: 23804L103<br>LEI: 549300F6JNO0KRPO1K63 | Long             | EC               | CORP              | US        |     15958 | NS      | $1883841.90   | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| DoorDash Inc                              | DoorDash Inc                              | CUSIP: 25809K105<br>LEI: 549300NUQ43FGGSK5051 | Long             | EC               | CORP              | US        |     28889 | NS      | $4337683.35   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                        | Meta Platforms Inc                        | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |    114517 | NS      | $65518611.21  | 5.01%             |  |  |  | No            |                  1 | On Loan: No      |
| GE Vernova Inc                            | GE Vernova Inc                            | CUSIP: 36828A101<br>LEI: 254900DP080RU6OK2553 | Long             | EC               | CORP              | US        |     14810 | NS      | $12927649.00  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| General Electric Co                       | General Electric Co                       | CUSIP: 369604301<br>LEI: 3C7474T6CDKPR9K6YT90 | Long             | EC               | CORP              | US        |     85917 | NS      | $24380667.09  | 1.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs Group Inc/The               | Goldman Sachs Group Inc/The               | CUSIP: 38141G104<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | EC               | CORP              | US        |      6977 | NS      | $5902472.23   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Intuitive Surgical Inc                    | Intuitive Surgical Inc                    | CUSIP: 46120E602<br>LEI: 54930052SRG011710797 | Long             | EC               | CORP              | US        |     37449 | NS      | $17263614.51  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Eli Lilly & Co                            | Eli Lilly & Co                            | CUSIP: 532457108<br>LEI: FRDRIPF3EKNDJ2CQJL29 | Long             | EC               | CORP              | US        |     42398 | NS      | $38996408.46  | 2.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Marsh & McLennan Cos Inc                  | Marsh & McLennan Cos Inc                  | CUSIP: 571748102<br>LEI: 549300XMP3KDCKJXIU47 | Long             | EC               | CORP              | US        |     23773 | NS      | $4123426.85   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Mastercard Inc                            | Mastercard Inc                            | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |     58061 | NS      | $29010759.26  | 2.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Medline Inc                               | Medline Inc                               | CUSIP: 58507V107<br>LEI: 984500FAN6J1P8566D43 | Long             | EC               | CORP              | US        |     31454 | NS      | $1399703.00   | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                            | Microsoft Corp                            | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |    290699 | NS      | $107608048.83 | 8.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Mondelez International Inc                | Mondelez International Inc                | CUSIP: 609207105<br>LEI: 549300DV9GIB88LZ5P30 | Long             | EC               | CORP              | US        |     43853 | NS      | $2527686.92   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Monolithic Power Systems Inc              | Monolithic Power Systems Inc              | CUSIP: 609839105<br>LEI: 529900TB7O85LSZ1XU31 | Long             | EC               | CORP              | US        |      7903 | NS      | $8640745.05   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Moody's Corp                              | Moody's Corp                              | CUSIP: 615369105<br>LEI: 549300GCEDD8YCF5WU84 | Long             | EC               | CORP              | US        |      8873 | NS      | $3870846.25   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley                            | Morgan Stanley                            | CUSIP: 617446448<br>LEI: IGJSJL3JD5P30I6NJZ34 | Long             | EC               | CORP              | US        |     37864 | NS      | $6231278.48   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Netflix Inc                               | Netflix Inc                               | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |    312075 | NS      | $30006011.25  | 2.30%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp                               | NVIDIA Corp                               | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |   1254885 | NS      | $218851944.00 | 16.74%            |  |  |  | No            |                  1 | On Loan: No      |
| Old Dominion Freight Line Inc             | Old Dominion Freight Line Inc             | CUSIP: 679580100<br>LEI: 5299009TWK32WE417T96 | Long             | EC               | CORP              | US        |     17804 | NS      | $3478901.60   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Oracle Corp                               | Oracle Corp                               | CUSIP: 68389X105<br>LEI: 1Z4GXXU7ZHVWFCD8TV52 | Long             | EC               | CORP              | US        |     79208 | NS      | $11652288.88  | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Palantir Technologies Inc                 | Palantir Technologies Inc                 | CUSIP: 69608A108<br>LEI: 549300UVN46B3BBDHO85 | Long             | EC               | CORP              | US        |     25748 | NS      | $3766417.44   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Procter & Gamble Co/The                   | Procter & Gamble Co/The                   | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |     23186 | NS      | $3348985.84   | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Roper Technologies Inc                    | Roper Technologies Inc                    | CUSIP: 776696106<br>LEI: 54930003T4SXCIWVXY35 | Long             | EC               | CORP              | US        |     11883 | NS      | $4204918.38   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Ross Stores Inc                           | Ross Stores Inc                           | CUSIP: 778296103<br>LEI: 549300ENZFLPGRDFZQ60 | Long             | EC               | CORP              | US        |     36349 | NS      | $7874283.87   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Charles Schwab Corp/The                   | Charles Schwab Corp/The                   | CUSIP: 808513105<br>LEI: 549300VSGCJ7E698NM85 | Long             | EC               | CORP              | US        |     45145 | NS      | $4242727.10   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Sea Ltd                                   | Sea Ltd                                   | CUSIP: 81141R100<br>LEI: 529900OM6JLLW44YKI15 | Long             | EC               | CORP              | KY        |     61693 | NS      | $5108797.33   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceNow Inc                            | ServiceNow Inc                            | CUSIP: 81762P102<br>LEI: 549300HJTQM36M0E1G39 | Long             | EC               | CORP              | US        |    140057 | NS      | $14642959.35  | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Sherwin-Williams Co/The                   | Sherwin-Williams Co/The                   | CUSIP: 824348106<br>LEI: Z15BMIOX8DDH0X2OBP21 | Long             | EC               | CORP              | US        |     14957 | NS      | $4794466.35   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Shopify Inc                               | Shopify Inc                               | CUSIP: 82509L107<br>LEI: 549300HGQ43STJLLP808 | Long             | EC               | CORP              | CA        |     87641 | NS      | $10395975.42  | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Stryker Corp                              | Stryker Corp                              | CUSIP: 863667101<br>LEI: 5493002F0SC4JTBU5137 | Long             | EC               | CORP              | US        |     18119 | NS      | $5953722.21   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Synopsys Inc                              | Synopsys Inc                              | CUSIP: 871607107<br>LEI: QG7T915N9S0NY5UKNE63 | Long             | EC               | CORP              | US        |     15954 | NS      | $6325441.92   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| TJX Cos Inc/The                           | TJX Cos Inc/The                           | CUSIP: 872540109<br>LEI: V167QI9I69W364E2DY52 | Long             | EC               | CORP              | US        |     45738 | NS      | $7304358.60   | 0.56%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                           | T-Mobile US Inc                           | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     62574 | NS      | $13142417.22  | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Taiwan Semiconductor Manufacturing Co Ltd | Taiwan Semiconductor Manufacturing Co Ltd | CUSIP: 874039100<br>LEI: 549300KB6NK5SBD14S87 | Long             | EC               | CORP              | TW        |     28955 | NS      | $9785342.25   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Tesla Inc                                 | Tesla Inc                                 | CUSIP: 88160R101<br>LEI: 54930043XZGB27CTOV49 | Long             | EC               | CORP              | US        |     97549 | NS      | $36263840.75  | 2.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Texas Instruments Inc                     | Texas Instruments Inc                     | CUSIP: 882508104<br>LEI: WDJNR2L6D8RWOEB8T652 | Long             | EC               | CORP              | US        |     19338 | NS      | $3754279.32   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc              | Thermo Fisher Scientific Inc              | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |     15354 | NS      | $7546951.62   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| TransDigm Group Inc                       | TransDigm Group Inc                       | CUSIP: 893641100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      2694 | NS      | $3122238.24   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| UnitedHealth Group Inc                    | UnitedHealth Group Inc                    | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |     29995 | NS      | $8116347.05   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Visa Inc                                  | Visa Inc                                  | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |    121549 | NS      | $36736969.76  | 2.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Adyen NV                                  | Adyen NV                                  | CUSIP: 000000000<br>LEI: 724500973ODKK3IFQ447 | Long             | EC               | CORP              | NL        |      1763 | NS      | $1764143.94   | 0.13%             |  |  |  | No            |                  2 | On Loan: No      |
| Linde PLC                                 | Linde PLC                                 | CUSIP: 000000000<br>LEI: 5299003QR1WT0EF88V51 | Long             | EC               | CORP              | IE        |     10351 | NS      | $5131611.76   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| TE Connectivity PLC                       | TE Connectivity PLC                       | CUSIP: 000000000<br>LEI: 6367003TB6K484NFHE54 | Long             | EC               | CORP              | IE        |     31159 | NS      | $6512854.18   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Chubb Ltd                                 | Chubb Ltd                                 | CUSIP: 000000000<br>LEI: E0JAN6VLUDI1HITHT809 | Long             | EC               | CORP              | CH        |     42806 | NS      | $13951759.58  | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |
| ASML Holding NV                           | ASML Holding NV                           | CUSIP: 000000000<br>LEI: 724500Y6DUVHQD6OXN27 | Long             | EC               | CORP              | NL        |     11602 | NS      | $15324269.66  | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-04-28

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

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer