# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-25-029468
**Filing Date:** 2025-11
**Character Count:** 41670
**Document Hash:** b27688a2b579e6391c9286e15f10fe30
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-029468.hdr.sgml**: 20251124

**ACCESSION NUMBER**: 0001410368-25-029468

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251124

**DATE AS OF CHANGE**: 20251124

**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:** 251511977

**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

### Domestic Equity Portfolio (Series ID: S000000041)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000076 | Domestic Equity Portfolio |  |

## Nport-Ex

Domestic Equity Portfolio

SCHEDULE OF INVESTMENTS

**September 30, 2025 (unaudited)** 

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (98.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Communication Services (5.9%)** | **Communication Services (5.9%)** |  |
|  Alphabet, Inc. - Class A | 151030 | 36716 |
|  Charter Communications, Inc. - Class A \* | 23781 | 6542 |
|  Comcast Corp. - Class A | 153328 | 4818 |
|  T-Mobile US, Inc. | 74456 | 17823 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **65899** |
|  **Consumer Discretionary (8.0%)** | **Consumer Discretionary (8.0%)** |  |
|  Amazon.com, Inc. \* | 124842 | 27412 |
|  General Motors Co. | 377849 | 23037 |
|  Hilton Worldwide Holdings, Inc. | 50521 | 13107 |
|  Lululemon Athletica, Inc. \* | 14814 | 2636 |
|  PulteGroup, Inc. | 183464 | 24241 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **90433** |
|  **Consumer Staples (10.0%)** | **Consumer Staples (10.0%)** |  |
|  BJ's Wholesale Club Holdings, Inc.\* | 70233 | 6550 |
|  The Coca-Cola Co. | 384045 | 25470 |
|  Philip Morris International, Inc. | 173520 | 28145 |
|  The Procter & Gamble Co. | 125181 | 19234 |
|  Target Corp. | 67416 | 6047 |
|  Walmart, Inc. | 262373 | 27040 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **112486** |
|  **Energy (5.7%)** |  |  |
|  ConocoPhillips | 113858 | 10770 |
|  Exxon Mobil Corp. | 248553 | 28024 |
|  Shell PLC | 367383 | 13197 |
|  Valero Energy Corp. | 71232 | 12128 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **64119** |
|  **Financials (21.4%)** |  |  |
|  The Allstate Corp. | 79471 | 17059 |
|  American International Group, Inc. | 158424 | 12443 |
|  Apollo Global Management, Inc. | 97872 | 13043 |
|  Bank of America Corp. | 524909 | 27080 |
|  BlackRock, Inc. | 11662 | 13596 |

---

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (98.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Financials continued** |  |  |
|  Capital One Financial Corp. | 121520 | 25833 |
|  The Charles Schwab Corp. | 213018 | 20337 |
|  Citigroup, Inc. | 424042 | 43040 |
|  CME Group, Inc. | 57566 | 15554 |
|  The Goldman Sachs Group, Inc. | 19593 | 15603 |
|  JPMorgan Chase & Co. | 44486 | 14032 |
|  The PNC Financial Services Group, Inc. | 82845 | 16646 |
|  State Street Corp. | 51546 | 5980 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **240246** |
|  **Health Care (12.9%)** |  |  |
|  AbbVie, Inc. | 49457 | 11451 |
|  AstraZeneca PLC, ADR | 184335 | 14142 |
|  Becton Dickinson and Co. | 78029 | 14605 |
|  McKesson Corp. | 31548 | 24372 |
|  Novo Nordisk A/S, ADR | 200225 | 11111 |
|  Regeneron Pharmaceuticals, Inc. | 29337 | 16495 |
|  Sanofi SA | 150069 | 14185 |
|  Thermo Fisher Scientific, Inc. | 43994 | 21338 |
|  UnitedHealth Group, Inc. | 49370 | 17048 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **144747** |
|  **Industrials (12.0%)** |  |  |
|  FedEx Corp. | 64422 | 15192 |
|  Honeywell International, Inc. | 64455 | 13568 |
|  Ingersoll-Rand, Inc. | 142822 | 11800 |
|  Johnson Controls International PLC | 161276 | 17732 |
|  Northrop Grumman Corp. | 27829 | 16957 |
|  Otis Worldwide Corp. | 95136 | 8698 |
|  RTX Corp. | 130043 | 21760 |
|  Southwest Airlines Co. | 488721 | 15595 |
|  United Rentals, Inc. | 14771 | 14101 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **135403** |
|  **Information Technology (10.0%)** | **Information Technology (10.0%)** |  |
|  Accenture PLC - Class A | 53114 | 13098 |
|  Cisco Systems, Inc. | 375165 | 25669 |
|  Marvell Technology, Inc. | 105953 | 8907 |

---

---

| | | |
|:---|:---|:---|
| Common Stocks<br> (98.5%) | Shares/<br> Par <sup>+</sup> | Value<br> $(000's) |
|  **Information Technology continued** | **Information Technology continued** | **Information Technology continued** |
|  Microsoft Corp. | 61475 | 31841 |
|  QUALCOMM, Inc. | 53224 | 8854 |
|  Seagate Technology Holdings PLC | 102554 | 24209 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **112578** |
|  **Materials (6.3%)** |  |  |
|  Ball Corp. | 86158 | 4344 |
|  Corteva, Inc. | 250655 | 16952 |
|  CRH PLC | 150332 | 18025 |
|  DuPont de Nemours, Inc. | 112674 | 8777 |
|  Eastman Chemical Co. | 60960 | 3843 |
|  Freeport-McMoRan, Inc. | 331963 | 13020 |
|  PPG Industries, Inc. | 58565 | 6156 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **71117** |
|  **Real Estate (2.1%)** |  |  |
|  American Tower Corp. | 21457 | 4126 |
|  Prologis, Inc. | 95127 | 10894 |
|  Vornado Realty Trust | 212208 | 8601 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **23621** |
|  **Utilities (4.2%)** |  |  |
|  NextEra Energy, Inc. | 281948 | 21284 |
|  NRG Energy, Inc. | 90570 | 14668 |
|  PPL Corp. | 316207 | 11750 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **47702** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Common Stocks<br>(Cost: $1,026,143)** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Common Stocks<br>(Cost: $1,026,143)** | **1108351** |
| Short-Term<br> Investments (0.1%) |  |  |
|  **Governments (0.1%)** |  |  |
|  US Treasury 0.000%, 12/4/25 | 700000 | 695 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **695** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Short-Term Investments<br>(Cost: $694)** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Short-Term Investments<br>(Cost: $694)** | **695** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (98.6%)<br>(Cost: $1,026,837)<sup>@</sup>** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (98.6%)<br>(Cost: $1,026,837)<sup>@</sup>** | **1109046** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Other Assets, Less<br>Liabilities (1.4%)** | &nbsp;&nbsp;&nbsp;&nbsp; **Other Assets, Less<br>Liabilities (1.4%)** | **16287** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Net Assets (100.0%)** | &nbsp;&nbsp;&nbsp;&nbsp; **Net Assets (100.0%)** | **1125333** |

---

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

\* Non income producing

**1** 

------

Domestic Equity Portfolio

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | |
|:---|:---|
| @ | At September 30, 2025, the aggregate cost of investments, including derivatives, for federal tax purposes (in thousands) was $1,026,837 and the net unrealized appreciation of investments based on that cost was $82,398 which is comprised of $98,769 aggregate gross unrealized appreciation and $16,371 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.  |

---

---

| | |
|:---|:---|
| π | Amount is less than one thousand.  |

---

**Over the Counter Derivatives** 

**Forward Foreign Currency Contracts** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Type | Counterparty | Currency | Foreign Principal<br>Amount<br> Covered by<br>Contract (000's) | USD Principal<br>Amount<br>Covered by<br>Contract (000's) | Settlement<br>Date | Unrealized<br> Appreciation<br>(000's) | Unrealized<br>(Depreciation)<br>(000's) | Net<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>(000's) |
|  Sell | Bank of America NA | DKK | 58305 | 9217 | 12/17/25 | $1 | $—π | $1 |
|  Sell | Goldman Sachs International | EUR | 9771 | 11522 | 12/17/25 | 1 |  | 1 |
|  Sell | Goldman Sachs International | GBP | 18125 | 24379 | 12/17/25 | 187 |  | 187 |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;189 | $—π | $189 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets (000's) | Financial Derivative Assets (000's) | | | Financial Derivative Liabilities (000's) | Financial Derivative Liabilities (000's) |
|  | Forward<br> Foreign<br> Currency<br>Contracts | Swaps |<br>Total |<br>Forward<br> Foreign<br>Currency<br>Contracts | Options | Swaps |
|  Total Over the Counter | $189 |  | $&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;189 |  |  |  |
|  Derivatives |  |  |  |  |  |  |

---

**2** 

------

Domestic Equity Portfolio

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

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 September 30, 2025.

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | 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)*  | *(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; Energy | $50922 | $13197 | $— |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Health Care | 130562 | 14185 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; All Others | 899485 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Short-Term Investments |  | 695 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other Financial Instruments^ |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts |  | 189 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Assets: | $1080969 | $28266 | $— |  |
|  Liabilities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other Financial Instruments^ |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts |  | —π |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Liabilities: | $— | $—π | $— |  |

---

^ Other financial instruments are derivative instruments such as futures and forward foreign currency contracts, which are valued at the unrealized appreciation (depreciation) on the instrument, and securities sold short, reverse repurchase agreements, written options and swaps contracts, which are valued at market value.

**3** 

------

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 |
|  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 |
|  MUTKCALM | Bank of Japan Unsecured Overnight Call Rate |
|  DAC | Designated Activity Company |
|  RSC | Restricted Scope Company |
|  KSC | Kuwait Shareholding 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 |
|  EURIBOR | Euro Interbank Offered Rate |
|  PRIBOR | Prague Interbank Offered Rate |
|  SDR | Swedish Depository Receipt |
|  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 |
|  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 |
|  MXN | Mexican New Peso |
|  NGN | Nigerian Naira |
|  NOK | Norwegian Krone |
|  NZD | New Zealand Dollar |
|  PEN | Peruvian Sol |
|  PLN | Polish Zloty |
|  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 |

---

## 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:** Domestic Equity Portfolio

- **b. EDGAR series identifier (if any):** S000000041

- **c. LEI of Series:** 5493004TKKI7X6F71K84

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

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

- **b. Date as of which information is reported:** 2025-09-30

**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:** $1126394163.96

**Total Liabilities:** $529052.15

**Net Assets:** $1125865111.81

**Cash Not Reported:** $16375557.99

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000076 | 1.09%                | 3.17%                | 1.70%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $11297474.37                               |
| Month 2  | $63763056.40             | $-30760291.94                              |
| Month 3  | $490911.23               | $17089103.18                               |

**Designated Index Information**

- **Index Name:** Russell 1000 Value Index

- **Index Identifier:** RLV

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Honeywell International Inc          | Honeywell International Inc          | CUSIP: 438516106<br>LEI: ISRPG12PN4EIEOEMW547 | Long             | EC               | CORP              | US        |     64455 | NS      | $13567777.50  | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Cisco Systems Inc                    | Cisco Systems Inc                    | CUSIP: 17275R102<br>LEI: 549300LKFJ962MZ46593 | Long             | EC               | CORP              | US        |    375165 | NS      | $25668789.30  | 2.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Blackrock Inc                        | Blackrock Inc                        | CUSIP: 09290D101<br>LEI: 529900VBK42Y5HHRMD23 | Long             | EC               | CORP              | US        |     11662 | NS      | $13596375.94  | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Accenture PLC                        | Accenture PLC                        | CUSIP: 000000000<br>LEI: 5493000EWHDSR3MZWH98 | Long             | EC               | CORP              | IE        |     53114 | NS      | $13097912.40  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| General Motors Co                    | General Motors Co                    | CUSIP: 37045V100<br>LEI: 54930070NSV60J38I987 | Long             | EC               | CORP              | US        |    377849 | NS      | $23037453.53  | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| UnitedHealth Group Inc               | UnitedHealth Group Inc               | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |     49370 | NS      | $17047461.00  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Philip Morris International Inc      | Philip Morris International Inc      | CUSIP: 718172109<br>LEI: HL3H1H2BGXWVG3BSWR90 | Long             | EC               | CORP              | US        |    173520 | NS      | $28144944.00  | 2.50%             |  |  |  | No            |                  1 | On Loan: No      |
| United Rentals Inc                   | United Rentals Inc                   | CUSIP: 911363109<br>LEI: 5323X5O7RN0NKFCDRY08 | Long             | EC               | CORP              | US        |     14771 | NS      | $14101282.86  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Valero Energy Corp                   | Valero Energy Corp                   | CUSIP: 91913Y100<br>LEI: 549300XTO5VR8SKV1V74 | Long             | EC               | CORP              | US        |     71232 | NS      | $12127960.32  | 1.08%             |  |  |  | No            |                  1 | On Loan: No      |
| NextEra Energy Inc                   | NextEra Energy Inc                   | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |    281948 | NS      | $21284254.52  | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings Inc        | Hilton Worldwide Holdings Inc        | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |     50521 | NS      | $13107168.24  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| AbbVie Inc                           | AbbVie Inc                           | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |     49457 | NS      | $11451273.78  | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Ball Corp                            | Ball Corp                            | CUSIP: 058498106<br>LEI: 0BGI85ALH27ZJP15DY16 | Long             | EC               | CORP              | US        |     86158 | NS      | $4344086.36   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Seagate Technology Holdings PLC      | Seagate Technology Holdings PLC      | CUSIP: 000000000<br>LEI: 635400RUXIFEZSRU8X70 | Long             | EC               | CORP              | IE        |    102554 | NS      | $24208897.24  | 2.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc         | Thermo Fisher Scientific Inc         | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |     43994 | NS      | $21337969.88  | 1.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Citigroup Inc                        | Citigroup Inc                        | CUSIP: 172967424<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | EC               | CORP              | US        |    424042 | NS      | $43040263.00  | 3.82%             |  |  |  | No            |                  1 | On Loan: No      |
| PNC Financial Services Group Inc/The | PNC Financial Services Group Inc/The | CUSIP: 693475105<br>LEI: CFGNEKW0P8842LEUIA51 | Long             | EC               | CORP              | US        |     82845 | NS      | $16646045.85  | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Comcast Corp                         | Comcast Corp                         | CUSIP: 20030N101<br>LEI: 51M0QTTNCGUN7KFCFZ59 | Long             | EC               | CORP              | US        |    153328 | NS      | $4817565.76   | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| PPG Industries Inc                   | PPG Industries Inc                   | CUSIP: 693506107<br>LEI: 549300BKPEP01R3V6C59 | Long             | EC               | CORP              | US        |     58565 | NS      | $6155767.15   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| PPL Corp                             | PPL Corp                             | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |    316207 | NS      | $11750252.12  | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Corteva Inc                          | Corteva Inc                          | CUSIP: 22052L104<br>LEI: 549300WZN9I2QKLS0O94 | Long             | EC               | CORP              | US        |    250655 | NS      | $16951797.65  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| CME Group Inc                        | CME Group Inc                        | CUSIP: 12572Q105<br>LEI: LCZ7XYGSLJUHFXXNXD88 | Long             | EC               | CORP              | US        |     57566 | NS      | $15553757.54  | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                         | Alphabet Inc                         | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    151030 | NS      | $36715393.00  | 3.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Prologis Inc                         | Prologis Inc                         | CUSIP: 74340W103<br>LEI: 529900DFH19P073LZ636 | Long             | EC               |  | US        |     95127 | NS      | $10893944.04  | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| NRG Energy Inc                       | NRG Energy Inc                       | CUSIP: 629377508<br>LEI: 5E2UPK5SW04M13XY7I38 | Long             | EC               | CORP              | US        |     90570 | NS      | $14667811.50  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Eastman Chemical Co                  | Eastman Chemical Co                  | CUSIP: 277432100<br>LEI: FDPVHDGJ1IQZFK9KH630 | Long             | EC               | CORP              | US        |     60960 | NS      | $3843528.00   | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Procter & Gamble Co/The              | Procter & Gamble Co/The              | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |    125181 | NS      | $19234060.65  | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| State Street Corp                    | State Street Corp                    | CUSIP: 857477103<br>LEI: 549300ZFEEJ2IP5VME73 | Long             | EC               | CORP              | US        |     51546 | NS      | $5979851.46   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| BJ's Wholesale Club Holdings Inc     | BJ's Wholesale Club Holdings Inc     | CUSIP: 05550J101<br>LEI: 549300UCIWH1C93V0J03 | Long             | EC               | CORP              | US        |     70233 | NS      | $6549227.25   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                       | Microsoft Corp                       | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |     61475 | NS      | $31840976.25  | 2.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Becton Dickinson & Co                | Becton Dickinson & Co                | CUSIP: 075887109<br>LEI: ICE2EP6D98PQUILVRZ91 | Long             | EC               | CORP              | US        |     78029 | NS      | $14604687.93  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| American Tower Corp                  | American Tower Corp                  | CUSIP: 03027X100<br>LEI: 5493006ORUSIL88JOE18 | Long             | EC               |  | US        |     21457 | NS      | $4126610.24   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Johnson Controls International plc   | Johnson Controls International plc   | CUSIP: 000000000<br>LEI: 549300XQ6S1GYKGBL205 | Long             | EC               | CORP              | IE        |    161276 | NS      | $17732296.20  | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Novo Nordisk A/S                     | Novo Nordisk A/S                     | CUSIP: 670100205<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |    200225 | NS      | $11110485.25  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| AstraZeneca PLC                      | AstraZeneca PLC                      | CUSIP: 046353108<br>LEI: PY6ZZQWO2IZFZC3IOL08 | Long             | EC               | CORP              | GB        |    184335 | NS      | $14142181.20  | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| DuPont de Nemours Inc                | DuPont de Nemours Inc                | CUSIP: 26614N102<br>LEI: 5493004JF0SDFLM8GD76 | Long             | EC               | CORP              | US        |    112674 | NS      | $8777304.60   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Target Corp                          | Target Corp                          | CUSIP: 87612E106<br>LEI: 8WDDFXB5T1Z6J0XC1L66 | Long             | EC               | CORP              | US        |     67416 | NS      | $6047215.20   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Walmart Inc                          | Walmart Inc                          | CUSIP: 931142103<br>LEI: Y87794H0US1R65VBXU25 | Long             | EC               | CORP              | US        |    262373 | NS      | $27040161.38  | 2.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Coca-Cola Co/The                     | Coca-Cola Co/The                     | CUSIP: 191216100<br>LEI: UWJKFUJFZ02DKWI3RY53 | Long             | EC               | CORP              | US        |    384045 | NS      | $25469864.40  | 2.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Exxon Mobil Corp                     | Exxon Mobil Corp                     | CUSIP: 30231G102<br>LEI: J3WHBG0MTS7O8ZVMDC91 | Long             | EC               | CORP              | US        |    248553 | NS      | $28024350.75  | 2.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Marvell Technology Inc               | Marvell Technology Inc               | CUSIP: 573874104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    105953 | NS      | $8907468.71   | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Southwest Airlines Co                | Southwest Airlines Co                | CUSIP: 844741108<br>LEI: UDTZ87G0STFETI6HGH41 | Long             | EC               | CORP              | US        |    488721 | NS      | $15595087.11  | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America Corp                 | Bank of America Corp                 | CUSIP: 060505104<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | EC               | CORP              | US        |    524909 | NS      | $27080055.31  | 2.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs International          | PURCHASED USD / SOLD GBP             | CUSIP: 000000000<br>LEI: W22LROWP2IHZNBB6K528 | N/A              | DFE              |  | US        |         1 | NC      | $187224.63    | 0.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Vornado Realty Trust                 | Vornado Realty Trust                 | CUSIP: 929042109<br>LEI: N/A                  | Long             | EC               |  | US        |    212208 | NS      | $8600790.24   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| FedEx Corp                           | FedEx Corp                           | CUSIP: 31428X106<br>LEI: 549300E707U7WNPZN687 | Long             | EC               | CORP              | US        |     64422 | NS      | $15191351.82  | 1.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs International          | PURCHASED USD / SOLD EUR             | CUSIP: 000000000<br>LEI: W22LROWP2IHZNBB6K528 | N/A              | DFE              |  | US        |         1 | NC      | $891.00       | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Apollo Global Management Inc         | Apollo Global Management Inc         | CUSIP: 03769M106<br>LEI: 254900LMFT1CY9IYB476 | Long             | EC               | CORP              | US        |     97872 | NS      | $13043401.44  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs Group Inc/The          | Goldman Sachs Group Inc/The          | CUSIP: 38141G104<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | EC               | CORP              | US        |     19593 | NS      | $15602885.55  | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Freeport-McMoRan Inc                 | Freeport-McMoRan Inc                 | CUSIP: 35671D857<br>LEI: 549300IRDTHJQ1PVET45 | Long             | EC               | CORP              | US        |    331963 | NS      | $13019588.86  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Charles Schwab Corp/The              | Charles Schwab Corp/The              | CUSIP: 808513105<br>LEI: 549300VSGCJ7E698NM85 | Long             | EC               | CORP              | US        |    213018 | NS      | $20336828.46  | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Lululemon Athletica Inc              | Lululemon Athletica Inc              | CUSIP: 550021109<br>LEI: 549300D9GZ4BMLDW5T40 | Long             | EC               | CORP              | US        |     14814 | NS      | $2635855.02   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| RTX Corp                             | RTX Corp                             | CUSIP: 75513E101<br>LEI: I07WOS4YJ0N7YRFE7309 | Long             | EC               | CORP              | US        |    130043 | NS      | $21760095.19  | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Allstate Corp/The                    | Allstate Corp/The                    | CUSIP: 020002101<br>LEI: OBT0W1ED8G0NWVOLOJ77 | Long             | EC               | CORP              | US        |     79471 | NS      | $17058450.15  | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America NA                   | PURCHASED USD / SOLD DKK             | CUSIP: 000000000<br>LEI: B4TYDEB6GKMZO031MB27 | N/A              | DFE              |  | US        |         1 | NC      | $1348.33      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Sanofi SA                            | Sanofi SA                            | CUSIP: 000000000<br>LEI: 549300E9PC51EN656011 | Long             | EC               | CORP              | FR        |    150069 | NS      | $14185162.68  | 1.26%             |  |  |  | No            |                  2 | On Loan: No      |
| Shell PLC                            | Shell PLC                            | CUSIP: 000000000<br>LEI: 21380068P1DRHMJ8KU70 | Long             | EC               | CORP              | GB        |    367383 | NS      | $13197291.14  | 1.17%             |  |  |  | No            |                  2 | On Loan: No      |
| PulteGroup Inc                       | PulteGroup Inc                       | CUSIP: 745867101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    183464 | NS      | $24241098.32  | 2.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America NA                   | PURCHASED USD / SOLD DKK             | CUSIP: 000000000<br>LEI: B4TYDEB6GKMZO031MB27 | N/A              | DFE              |  | US        |         1 | NC      | $-214.73      | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Ingersoll Rand Inc                   | Ingersoll Rand Inc                   | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |    142822 | NS      | $11799953.64  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| QUALCOMM Inc                         | QUALCOMM Inc                         | CUSIP: 747525103<br>LEI: H1J8DDZKZP6H7RWC0H53 | Long             | EC               | CORP              | US        |     53224 | NS      | $8854344.64   | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Otis Worldwide Corp                  | Otis Worldwide Corp                  | CUSIP: 68902V107<br>LEI: 549300ZLBKR8VSU25153 | Long             | EC               | CORP              | US        |     95136 | NS      | $8698284.48   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Northrop Grumman Corp                | Northrop Grumman Corp                | CUSIP: 666807102<br>LEI: RIMU48P07456QXSO0R61 | Long             | EC               | CORP              | US        |     27829 | NS      | $16956766.28  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| McKesson Corp                        | McKesson Corp                        | CUSIP: 58155Q103<br>LEI: 549300WZWOM80UCFSF54 | Long             | EC               | CORP              | US        |     31548 | NS      | $24372091.92  | 2.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Regeneron Pharmaceuticals Inc        | Regeneron Pharmaceuticals Inc        | CUSIP: 75886F107<br>LEI: 549300RCBFWIRX3HYQ56 | Long             | EC               | CORP              | US        |     29337 | NS      | $16495314.99  | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                      | T-Mobile US Inc                      | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     74456 | NS      | $17823277.28  | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Charter Communications Inc           | Charter Communications Inc           | CUSIP: 16119P108<br>LEI: 0J0XRGZE3PBRFEZ7MV65 | Long             | EC               | CORP              | US        |     23781 | NS      | $6542272.01   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| CRH PLC                              | CRH PLC                              | CUSIP: 000000000<br>LEI: 549300MIDJNNTH068E74 | Long             | EC               | CORP              | IE        |    150332 | NS      | $18024806.80  | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMorgan Chase & Co                  | JPMorgan Chase & Co                  | CUSIP: 46625H100<br>LEI: 8I5DZWZKVSZI1NUHU748 | Long             | EC               | CORP              | US        |     44486 | NS      | $14032218.98  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                       | Amazon.com Inc                       | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    124842 | NS      | $27411557.94  | 2.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Capital One Financial Corp           | Capital One Financial Corp           | CUSIP: 14040H105<br>LEI: ZUE8T73ROZOF6FLBAR73 | Long             | EC               | CORP              | US        |    121520 | NS      | $25832721.60  | 2.29%             |  |  |  | No            |                  1 | On Loan: No      |
| American International Group Inc     | American International Group Inc     | CUSIP: 026874784<br>LEI: ODVCVCQG2BP6VHV36M30 | Long             | EC               | CORP              | US        |    158424 | NS      | $12442620.96  | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury               | U.S. Treasury Bills                  | CUSIP: 912797QS9<br>LEI: 254900HROIFWPRGM1V77 | Long             | STIV             | UST               | US        |    700000 | PA      | $695149.31    | 0.06%             | 2025-12-04      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| ConocoPhillips                       | ConocoPhillips                       | CUSIP: 20825C104<br>LEI: WPTL2Z3FIYTHSP5V2253 | Long             | EC               | CORP              | US        |    113858 | NS      | $10769828.22  | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-28

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

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer