# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-053259
**Filing Date:** 2026-5
**Character Count:** 43350
**Document Hash:** bd1e4a618f6c9bd38bfbfd1b492d0ca2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-053259.hdr.sgml**: 20260527

**ACCESSION NUMBER**: 0001410368-26-053259

**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:** 261024826

**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

**March 31, 2026 (unaudited)** 

---

| | | |
|:---|:---|:---|
| Common Stocks<br>(97.6%) | Shares/<br>Par <sup>+</sup> | Value<br> $(000's) |
|  **Communication Services (5.7%)** | **Communication Services (5.7%)** | **Communication Services (5.7%)** |
|  Alphabet, Inc. - Class A | 145996 | 41983 |
|  Charter Communications, Inc. - Class A \* | 23066 | 4979 |
|  Comcast Corp. - Class A | 148716 | 4270 |
|  T-Mobile US, Inc. | 72217 | 15168 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **66400** |
|  **Consumer Discretionary (7.6%)** | **Consumer Discretionary (7.6%)** | **Consumer Discretionary (7.6%)** |
|  Amazon.com, Inc. \* | 121087 | 25219 |
|  General Motors Co. | 366483 | 27303 |
|  Hilton Worldwide Holdings, Inc. | 49002 | 14901 |
|  PulteGroup, Inc. | 177945 | 20928 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **88351** |
|  **Consumer Staples (9.5%)** | **Consumer Staples (9.5%)** | **Consumer Staples (9.5%)** |
|  BJ's Wholesale Club |  |  |
|  Holdings, Inc. \* | 68121 | 6704 |
|  The Coca-Cola Co. | 372493 | 28328 |
|  The Kroger Co. | 163002 | 11795 |
|  Philip Morris International, Inc. | 168301 | 27827 |
|  The Procter & Gamble Co. | 121415 | 17537 |
|  Walmart, Inc. | 150981 | 18764 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **110955** |
|  **Energy (7.7%)** | **Energy (7.7%)** | **Energy (7.7%)** |
|  ConocoPhillips | 110434 | 14577 |
|  Exxon Mobil Corp. | 240065 | 40729 |
|  Shell PLC | 356332 | 16658 |
|  Valero Energy Corp. | 69090 | 17071 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **89035** |
|  **Financials (19.7%)** | **Financials (19.7%)** | **Financials (19.7%)** |
|  The Allstate Corp. | 77080 | 15982 |
|  American International Group, Inc. | 153659 | 11563 |
|  Apollo Global Management, Inc. | 94928 | 10577 |
|  Bank of America Corp. | 509119 | 24820 |
|  BlackRock, Inc. | 11311 | 10878 |
|  Capital One Financial Corp. | 117865 | 21502 |
|  The Charles Schwab Corp. | 206610 | 19417 |
|  Citigroup, Inc. | 410276 | 46529 |
|  CME Group, Inc. | 55835 | 16491 |
|  The Goldman Sachs Group, Inc. | 19004 | 16077 |
|  JPMorgan Chase & Co. | 43148 | 12692 |
|  The PNC Financial Services Group, Inc. | 80353 | 16721 |

---

---

| | | |
|:---|:---|:---|
| Common Stocks<br>(97.6%) | Shares/<br>Par <sup>+</sup> | Value<br> $(000's) |
|  **Financials continued** | **Financials continued** | **Financials continued** |
|  State Street Corp. | 49996 | 6327 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **229576** |
|  **Health Care (13.4%)** | **Health Care (13.4%)** | **Health Care (13.4%)** |
|  AbbVie, Inc. | 47970 | 10433 |
|  AstraZeneca PLC | 89395 | 17631 |
|  Becton Dickinson and Co. | 75682 | 11899 |
|  Boston Scientific Corp. \* | 148986 | 9349 |
|  McKesson Corp. | 30600 | 26480 |
|  Novo Nordisk A/S, ADR | 198851 | 7308 |
|  Regeneron Pharmaceuticals, Inc. | 28455 | 21985 |
|  Sanofi SA | 145556 | 14040 |
|  Thermo Fisher Scientific, Inc. | 42671 | 20974 |
|  UnitedHealth Group, Inc. | 47886 | 12957 |
|  Waters Corp. \* | 10487 | 3123 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **156179** |
|  **Industrials (12.4%)** | **Industrials (12.4%)** | **Industrials (12.4%)** |
|  FedEx Corp. | 62485 | 22256 |
|  Honeywell International, Inc. | 107730 | 24350 |
|  Ingersoll-Rand, Inc. | 138526 | 11099 |
|  Johnson Controls International PLC | 63650 | 8335 |
|  Northrop Grumman Corp. | 26992 | 18415 |
|  Otis Worldwide Corp. | 156543 | 12066 |
|  RTX Corp. | 97715 | 18849 |
|  Southwest Airlines Co. | 474020 | 17809 |
|  United Rentals, Inc. | 14327 | 10438 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **143617** |
|  **Information Technology (9.4%)** | **Information Technology (9.4%)** | **Information Technology (9.4%)** |
|  Accenture PLC - Class A | 76221 | 15114 |
|  Cisco Systems, Inc. | 456532 | 35422 |
|  Marvell Technology, Inc. | 132676 | 13142 |
|  Microsoft Corp. | 64824 | 23996 |
|  QUALCOMM, Inc. | 51623 | 6648 |
|  Seagate Technology Holdings PLC | 37749 | 14788 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **109110** |
|  **Materials (6.1%)** | **Materials (6.1%)** | **Materials (6.1%)** |
|  Ball Corp. | 83567 | 4940 |
|  Corteva, Inc. | 243115 | 20351 |
|  CRH PLC | 152227 | 16002 |
|  Eastman Chemical Co. | 59127 | 4513 |
|  Freeport-McMoRan, Inc. | 321978 | 18926 |

---

---

| | | |
|:---|:---|:---|
| Common<br>Stocks (97.6%) | Shares/<br>Par <sup>+</sup> | Value<br> $(000's) |
|  **Materials continued** | **Materials continued** | **Materials continued** |
|  PPG Industries, Inc. | 56804 | 6071 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **70803** |
|  **Real Estate (1.8%)** | **Real Estate (1.8%)** | **Real Estate (1.8%)** |
|  American Tower Corp. | 20813 | 3592 |
|  Prologis, Inc. | 92265 | 12196 |
|  Vornado Realty Trust | 205825 | 5349 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **21137** |
|  **Utilities (4.3%)** | **Utilities (4.3%)** | **Utilities (4.3%)** |
|  NextEra Energy, Inc. | 309478 | 28744 |
|  NRG Energy, Inc. | 66388 | 9702 |
|  PPL Corp. | 306695 | 11716 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** |  | **50162** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Common Stocks<br>(Cost: $1,003,757)** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Common Stocks<br>(Cost: $1,003,757)** | **1135325** |
| Short-Term<br> Investments<br>(0.0%) |  |  |
|  **Governments (0.0%)** | **Governments (0.0%)** |  |
|  US Treasury Bill<br>0.000%, 7/16/26 b | 350000 | 346 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total** | &nbsp;&nbsp;&nbsp;&nbsp; **Total** | **346** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Short-Term Investments<br>(Cost: $347)** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Short-Term Investments<br>(Cost: $347)** | **346** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (97.6%)<br>(Cost: $1,004,104)@** | &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments (97.6%)<br>(Cost: $1,004,104)@** | **1135671** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Other Assets, Less Liabilities (2.4%)** | &nbsp;&nbsp;&nbsp;&nbsp; **Other Assets, Less Liabilities (2.4%)** | **27394** |
| &nbsp;&nbsp;&nbsp;&nbsp; **Net Assets (100.0%)** | &nbsp;&nbsp;&nbsp;&nbsp; **Net Assets (100.0%)** | **1163065** |

---

**1** 

------

Domestic Equity Portfolio

**Over the Counter Derivatives** 

**Forward Foreign Currency Contracts** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Type | Counterparty | Currency | Foreign Principal<br> Amount<br> Covered by<br>Contract (000s) | 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 | 30631 | 4757 | 6/17/26 | $— | $(40) | $(40) |
| Sell | Citibank NA | DKK | 19172 | 2977 | 6/17/26 |  | (25) | (25) |
| Buy | HSBC Bank PLC | EUR | 557 | 646 | 6/17/26 | 4 |  | 4 |
| Sell | Goldman Sachs International | EUR | 9299 | 10785 | 6/17/26 |  | (97) | (97) |
| Sell | JP Morgan Chase Bank NA | EUR | 289 | 335 | 6/17/26 |  | (1) | (1) |
| Sell | Goldman Sachs International | GBP | 20577 | 27229 | 6/17/26 | 9 |  | 9 |
| Sell | Morgan Stanley And Co. International Plc | GBP | 2278 | 3014 | 6/17/26 | 21 |  | 21 |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;34 | $(163) | $(129) |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets (000's) | Financial Derivative Assets (000's) | Financial Derivative Assets (000's) | Financial Derivative Liabilities (000's) | Financial Derivative Liabilities (000's) | Financial Derivative Liabilities (000's) | Financial Derivative Liabilities (000's) |
|  | Forward<br>Foreign<br>Currency<br>Contracts | Swaps | Total | Forward<br>Foreign<br>Currency<br>Contracts | Options | Swaps | Total |
|  Total Over the Counter Derivatives | $34 |  | $34 | $(163) |  |  | $(163) |

---

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

\* Non income producing

b Part or all of the security has been pledged as collateral.

---

| | |
|:---|:---|
| @ | At March 31, 2026, the aggregate cost of investments, including derivatives, for federal tax purposes (in thousands) was $1,004,104 and the net unrealized appreciation of investments based on that cost was $131,438 which is comprised of $182,136 aggregate gross unrealized appreciation and $50,698 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.  |

---

**2** 

------

Domestic Equity Portfolio

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 | |  |
| **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 | $72377 | $16658 | $— |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Health Care | 142139 | 14040 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; All Others | 890111 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Short-Term Investments |  | 346 |  |  |
| &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 |  | 34 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Assets: | $1104627 | $31078 | $— |  |
|  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 |  | (163) |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Liabilities: | $— | $(163) | $— |  |

---

^ 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 |
| 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:** 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:** 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:** $1167138996.36

**Total Liabilities:** $3749874.01

**Net Assets:** $1163389122.35

**Cash Not Reported:** $26935909.91

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000076 | 3.51%                | 2.03%                | -4.41%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $4165067.78              | $37117777.62                               |
| Month 2  | $10993491.51             | $10805423.51                               |
| Month 3  | $249009.34               | $-57149431.24                              |

**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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| AbbVie Inc                             | AbbVie Inc                           | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |     47970 | NS      | $10432995.30  | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Allstate Corp/The                      | Allstate Corp/The                    | CUSIP: 020002101<br>LEI: OBT0W1ED8G0NWVOLOJ77 | Long             | EC               | CORP              | US        |     77080 | NS      | $15981767.20  | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                           | Alphabet Inc                         | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    145996 | NS      | $41982609.76  | 3.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                         | Amazon.com Inc                       | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    121087 | NS      | $25218789.49  | 2.17%             |  |  |  | No            |                  1 | On Loan: No      |
| American International Group Inc       | American International Group Inc     | CUSIP: 026874784<br>LEI: ODVCVCQG2BP6VHV36M30 | Long             | EC               | CORP              | US        |    153659 | NS      | $11562839.75  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| American Tower Corp                    | American Tower Corp                  | CUSIP: 03027X100<br>LEI: 5493006ORUSIL88JOE18 | Long             | EC               |  | US        |     20813 | NS      | $3591907.54   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Apollo Global Management Inc           | Apollo Global Management Inc         | CUSIP: 03769M106<br>LEI: 254900LMFT1CY9IYB476 | Long             | EC               | CORP              | US        |     94928 | NS      | $10576877.76  | 0.91%             |  |  |  | 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        |     68121 | NS      | $6704468.82   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Ball Corp                              | Ball Corp                            | CUSIP: 058498106<br>LEI: 0BGI85ALH27ZJP15DY16 | Long             | EC               | CORP              | US        |     83567 | NS      | $4939645.37   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America Corp                   | Bank of America Corp                 | CUSIP: 060505104<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | EC               | CORP              | US        |    509119 | NS      | $24819551.25  | 2.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Becton Dickinson & Co                  | Becton Dickinson & Co                | CUSIP: 075887109<br>LEI: ICE2EP6D98PQUILVRZ91 | Long             | EC               | CORP              | US        |     75682 | NS      | $11899480.86  | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Blackrock Inc                          | Blackrock Inc                        | CUSIP: 09290D101<br>LEI: 529900VBK42Y5HHRMD23 | Long             | EC               | CORP              | US        |     11311 | NS      | $10877901.81  | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Boston Scientific Corp                 | Boston Scientific Corp               | CUSIP: 101137107<br>LEI: Y6ZDD9FP4P8JSSJMW954 | Long             | EC               | CORP              | US        |    148986 | NS      | $9348871.50   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| CME Group Inc                          | CME Group Inc                        | CUSIP: 12572Q105<br>LEI: LCZ7XYGSLJUHFXXNXD88 | Long             | EC               | CORP              | US        |     55835 | NS      | $16490867.25  | 1.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Capital One Financial Corp             | Capital One Financial Corp           | CUSIP: 14040H105<br>LEI: ZUE8T73ROZOF6FLBAR73 | Long             | EC               | CORP              | US        |    117865 | NS      | $21502111.95  | 1.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Charter Communications Inc             | Charter Communications Inc           | CUSIP: 16119P108<br>LEI: 0J0XRGZE3PBRFEZ7MV65 | Long             | EC               | CORP              | US        |     23066 | NS      | $4979488.08   | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Cisco Systems Inc                      | Cisco Systems Inc                    | CUSIP: 17275R102<br>LEI: 549300LKFJ962MZ46593 | Long             | EC               | CORP              | US        |    456532 | NS      | $35422317.88  | 3.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Citigroup Inc                          | Citigroup Inc                        | CUSIP: 172967424<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | EC               | CORP              | US        |    410276 | NS      | $46529401.16  | 4.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Coca-Cola Co/The                       | Coca-Cola Co/The                     | CUSIP: 191216100<br>LEI: UWJKFUJFZ02DKWI3RY53 | Long             | EC               | CORP              | US        |    372493 | NS      | $28328092.65  | 2.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Comcast Corp                           | Comcast Corp                         | CUSIP: 20030N101<br>LEI: 51M0QTTNCGUN7KFCFZ59 | Long             | EC               | CORP              | US        |    148716 | NS      | $4269636.36   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| ConocoPhillips                         | ConocoPhillips                       | CUSIP: 20825C104<br>LEI: WPTL2Z3FIYTHSP5V2253 | Long             | EC               | CORP              | US        |    110434 | NS      | $14577288.00  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Corteva Inc                            | Corteva Inc                          | CUSIP: 22052L104<br>LEI: 549300WZN9I2QKLS0O94 | Long             | EC               | CORP              | US        |    243115 | NS      | $20351156.65  | 1.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America NA                     | PURCHASED USD / SOLD DKK             | CUSIP: 000000000<br>LEI: B4TYDEB6GKMZO031MB27 | N/A              | DFE              |  | US        |         1 | NC      | $-40158.44    | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Goldman Sachs International            | PURCHASED USD / SOLD EUR             | CUSIP: 000000000<br>LEI: W22LROWP2IHZNBB6K528 | N/A              | DFE              |  | US        |         1 | NC      | $-96860.10    | -0.01%            |  |  |  | No            |                  2 | On Loan: No      |
| Goldman Sachs International            | PURCHASED USD / SOLD GBP             | CUSIP: 000000000<br>LEI: W22LROWP2IHZNBB6K528 | N/A              | DFE              |  | US        |         1 | NC      | $8797.63      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Citibank NA                            | PURCHASED USD / SOLD DKK             | CUSIP: 000000000<br>LEI: E57ODZWZ7FF32TWEFA76 | N/A              | DFE              |  | US        |         1 | NC      | $-24862.87    | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| HSBC Bank PLC                          | PURCHASED EUR / SOLD USD             | CUSIP: 000000000<br>LEI: MP6I5ZYZBEU3UXPYFY54 | N/A              | DFE              |  | XX        |         1 | NC      | $3596.58      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Morgan Stanley & Co. International PLC | PURCHASED USD / SOLD GBP             | CUSIP: 000000000<br>LEI: 4PQUHN3JPFGFNF3BB653 | N/A              | DFE              |  | US        |         1 | NC      | $20910.11     | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| JPMorgan Chase Bank NA                 | PURCHASED USD / SOLD EUR             | CUSIP: 000000000<br>LEI: 7H6GLXDRUGQFU57RNE97 | N/A              | DFE              |  | US        |         1 | NC      | $-950.16      | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Eastman Chemical Co                    | Eastman Chemical Co                  | CUSIP: 277432100<br>LEI: FDPVHDGJ1IQZFK9KH630 | Long             | EC               | CORP              | US        |     59127 | NS      | $4512572.64   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Exxon Mobil Corp                       | Exxon Mobil Corp                     | CUSIP: 30231G102<br>LEI: J3WHBG0MTS7O8ZVMDC91 | Long             | EC               | CORP              | US        |    240065 | NS      | $40729427.90  | 3.50%             |  |  |  | No            |                  1 | On Loan: No      |
| FedEx Corp                             | FedEx Corp                           | CUSIP: 31428X106<br>LEI: 549300E707U7WNPZN687 | Long             | EC               | CORP              | US        |     62485 | NS      | $22255907.30  | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Freeport-McMoRan Inc                   | Freeport-McMoRan Inc                 | CUSIP: 35671D857<br>LEI: 549300IRDTHJQ1PVET45 | Long             | EC               | CORP              | US        |    321978 | NS      | $18925866.84  | 1.63%             |  |  |  | No            |                  1 | On Loan: No      |
| General Motors Co                      | General Motors Co                    | CUSIP: 37045V100<br>LEI: 54930070NSV60J38I987 | Long             | EC               | CORP              | US        |    366483 | NS      | $27302983.50  | 2.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs Group Inc/The            | Goldman Sachs Group Inc/The          | CUSIP: 38141G104<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | EC               | CORP              | US        |     19004 | NS      | $16077193.96  | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings Inc          | Hilton Worldwide Holdings Inc        | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |     49002 | NS      | $14900528.16  | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Honeywell International Inc            | Honeywell International Inc          | CUSIP: 438516106<br>LEI: ISRPG12PN4EIEOEMW547 | Long             | EC               | CORP              | US        |    107730 | NS      | $24350211.90  | 2.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingersoll Rand Inc                     | Ingersoll Rand Inc                   | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |    138526 | NS      | $11098703.12  | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMorgan Chase & Co                    | JPMorgan Chase & Co                  | CUSIP: 46625H100<br>LEI: 8I5DZWZKVSZI1NUHU748 | Long             | EC               | CORP              | US        |     43148 | NS      | $12692415.68  | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Kroger Co/The                          | Kroger Co/The                        | CUSIP: 501044101<br>LEI: 6CPEOKI6OYJ13Q6O7870 | Long             | EC               | CORP              | US        |    163002 | NS      | $11794824.72  | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Sanofi SA                              | Sanofi SA                            | CUSIP: 000000000<br>LEI: 549300E9PC51EN656011 | Long             | EC               | CORP              | FR        |    145556 | NS      | $14039720.47  | 1.21%             |  |  |  | No            |                  2 | On Loan: No      |
| Marvell Technology Inc                 | Marvell Technology Inc               | CUSIP: 573874104<br>LEI: 254900WVU0BM7ZCJ9E93 | Long             | EC               | CORP              | US        |    132676 | NS      | $13141557.80  | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| McKesson Corp                          | McKesson Corp                        | CUSIP: 58155Q103<br>LEI: 549300WZWOM80UCFSF54 | Long             | EC               | CORP              | US        |     30600 | NS      | $26480016.00  | 2.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                         | Microsoft Corp                       | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |     64824 | NS      | $23995900.08  | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| NRG Energy Inc                         | NRG Energy Inc                       | CUSIP: 629377508<br>LEI: 5E2UPK5SW04M13XY7I38 | Long             | EC               | CORP              | US        |     66388 | NS      | $9701942.32   | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| NextEra Energy Inc                     | NextEra Energy Inc                   | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |    309478 | NS      | $28744316.64  | 2.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Northrop Grumman Corp                  | Northrop Grumman Corp                | CUSIP: 666807102<br>LEI: RIMU48P07456QXSO0R61 | Long             | EC               | CORP              | US        |     26992 | NS      | $18415022.08  | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Novo Nordisk A/S                       | Novo Nordisk A/S                     | CUSIP: 670100205<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |    198851 | NS      | $7307774.25   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Otis Worldwide Corp                    | Otis Worldwide Corp                  | CUSIP: 68902V107<br>LEI: 549300ZLBKR8VSU25153 | Long             | EC               | CORP              | US        |    156543 | NS      | $12066334.44  | 1.04%             |  |  |  | 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        |     80353 | NS      | $16720655.77  | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| PPG Industries Inc                     | PPG Industries Inc                   | CUSIP: 693506107<br>LEI: 549300BKPEP01R3V6C59 | Long             | EC               | CORP              | US        |     56804 | NS      | $6071211.52   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| PPL Corp                               | PPL Corp                             | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |    306695 | NS      | $11715749.00  | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Philip Morris International Inc        | Philip Morris International Inc      | CUSIP: 718172109<br>LEI: HL3H1H2BGXWVG3BSWR90 | Long             | EC               | CORP              | US        |    168301 | NS      | $27826887.34  | 2.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Procter & Gamble Co/The                | Procter & Gamble Co/The              | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |    121415 | NS      | $17537182.60  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Prologis Inc                           | Prologis Inc                         | CUSIP: 74340W103<br>LEI: 529900DFH19P073LZ636 | Long             | EC               |  | US        |     92265 | NS      | $12195587.70  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| PulteGroup Inc                         | PulteGroup Inc                       | CUSIP: 745867101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    177945 | NS      | $20928111.45  | 1.80%             |  |  |  | No            |                  1 | On Loan: No      |
| QUALCOMM Inc                           | QUALCOMM Inc                         | CUSIP: 747525103<br>LEI: H1J8DDZKZP6H7RWC0H53 | Long             | EC               | CORP              | US        |     51623 | NS      | $6648009.94   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| RTX Corp                               | RTX Corp                             | CUSIP: 75513E101<br>LEI: I07WOS4YJ0N7YRFE7309 | Long             | EC               | CORP              | US        |     97715 | NS      | $18849223.50  | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Regeneron Pharmaceuticals Inc          | Regeneron Pharmaceuticals Inc        | CUSIP: 75886F107<br>LEI: 549300RCBFWIRX3HYQ56 | Long             | EC               | CORP              | US        |     28455 | NS      | $21985471.20  | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Charles Schwab Corp/The                | Charles Schwab Corp/The              | CUSIP: 808513105<br>LEI: 549300VSGCJ7E698NM85 | Long             | EC               | CORP              | US        |    206610 | NS      | $19417207.80  | 1.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Southwest Airlines Co                  | Southwest Airlines Co                | CUSIP: 844741108<br>LEI: UDTZ87G0STFETI6HGH41 | Long             | EC               | CORP              | US        |    474020 | NS      | $17808931.40  | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| State Street Corp                      | State Street Corp                    | CUSIP: 857477103<br>LEI: 549300ZFEEJ2IP5VME73 | Long             | EC               | CORP              | US        |     49996 | NS      | $6327493.76   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                        | T-Mobile US Inc                      | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     72217 | NS      | $15167736.51  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc           | Thermo Fisher Scientific Inc         | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |     42671 | NS      | $20974076.63  | 1.80%             |  |  |  | No            |                  1 | On Loan: No      |
| United Rentals Inc                     | United Rentals Inc                   | CUSIP: 911363109<br>LEI: 5323X5O7RN0NKFCDRY08 | Long             | EC               | CORP              | US        |     14327 | NS      | $10438079.12  | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury                 | U.S. Treasury Bills                  | CUSIP: 912797TN7<br>LEI: 254900HROIFWPRGM1V77 | Long             | STIV             | UST               | US        |    350000 | PA      | $346301.47    | 0.03%             | 2026-07-16      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| UnitedHealth Group Inc                 | UnitedHealth Group Inc               | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |     47886 | NS      | $12957472.74  | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Valero Energy Corp                     | Valero Energy Corp                   | CUSIP: 91913Y100<br>LEI: 549300XTO5VR8SKV1V74 | Long             | EC               | CORP              | US        |     69090 | NS      | $17070757.20  | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Vornado Realty Trust                   | Vornado Realty Trust                 | CUSIP: 929042109<br>LEI: N/A                  | Long             | EC               |  | US        |    205825 | NS      | $5349391.75   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Walmart Inc                            | Walmart Inc                          | CUSIP: 931142103<br>LEI: Y87794H0US1R65VBXU25 | Long             | EC               | CORP              | US        |    150981 | NS      | $18763918.68  | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Waters Corp                            | Waters Corp                          | CUSIP: 941848103<br>LEI: 5T547R1474YC9HOD8Q74 | Long             | EC               | CORP              | US        |     10487 | NS      | $3123028.60   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Shell PLC                              | Shell PLC                            | CUSIP: 000000000<br>LEI: 21380068P1DRHMJ8KU70 | Long             | EC               | CORP              | GB        |    356332 | NS      | $16657584.01  | 1.43%             |  |  |  | No            |                  2 | On Loan: No      |
| AstraZeneca PLC                        | AstraZeneca PLC                      | CUSIP: 000000000<br>LEI: PY6ZZQWO2IZFZC3IOL08 | Long             | EC               | CORP              | GB        |     89395 | NS      | $17630481.90  | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Accenture PLC                          | Accenture PLC                        | CUSIP: 000000000<br>LEI: 5493000EWHDSR3MZWH98 | Long             | EC               | CORP              | IE        |     76221 | NS      | $15113862.09  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| CRH PLC                                | CRH PLC                              | CUSIP: 000000000<br>LEI: 549300MIDJNNTH068E74 | Long             | EC               | CORP              | IE        |    152227 | NS      | $16002102.24  | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Johnson Controls International plc     | Johnson Controls International plc   | CUSIP: 000000000<br>LEI: 549300XQ6S1GYKGBL205 | Long             | EC               | CORP              | IE        |     63650 | NS      | $8334967.50   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Seagate Technology Holdings PLC        | Seagate Technology Holdings PLC      | CUSIP: 000000000<br>LEI: 635400RUXIFEZSRU8X70 | Long             | EC               | CORP              | IE        |     37749 | NS      | $14788548.24  | 1.27%             |  |  |  | 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