# EDGAR Filing Document

**Accession Number:** 0000319108
**File Stem:** 0001193125-25-317598
**Filing Date:** 2025-12
**Character Count:** 7695
**Document Hash:** 831c7f7645057804c3e699e29eca0f04
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-317598.hdr.sgml**: 20251212

**ACCESSION NUMBER**: 0001193125-25-317598

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251212

**DATE AS OF CHANGE**: 20251212

**EFFECTIVENESS DATE**: 20251212

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BlackRock Series Fund, Inc.
- **CENTRAL INDEX KEY:** 0000319108

**ORGANIZATION NAME:**
- **EIN:** 133051800
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-69062
- **FILM NUMBER:** 251568337

**BUSINESS ADDRESS:**
- **STREET 1:** 100 BELEVUE PARKWAY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809
- **BUSINESS PHONE:** 800-441-7762

**MAIL ADDRESS:**
- **STREET 1:** 100 BELEVUE PARKWAY
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FAM Series Fund, Inc.
- **DATE OF NAME CHANGE:** 20050720

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MERRILL LYNCH SERIES FUNDS INC
- **DATE OF NAME CHANGE:** 20000229

## Series and Classes Contracts Data

### BlackRock Capital Appreciation Portfolio (Series ID: S000003867)

---

|  |  |
|:---|:---|
| Class Name                               | Class ID   |
| BlackRock Capital Appreciation Portfolio | C000010833 |

---

## Series and Classes Contracts Data

### BlackRock Capital Appreciation Portfolio (Series ID: S000003867)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000010833 | BlackRock Capital Appreciation Portfolio |  |

**BLACKROCK SERIES FUND, INC.** 

BlackRock Capital Appreciation Portfolio

(the "Fund")

**Supplement dated December 12, 2025 (the "Supplement") to the Fund's** 

**Statement of Additional Information ("SAI"), dated May 1, 2025, as supplemented or amended to date** 

**The following changes are made to the Fund's SAI:** 

**The section entitled "Management, Advisory and Other Service Arrangements — Portfolio Manager Information" is revised as follows:** 

**The first paragraph of the sub-section entitled "Other Portfolios and Accounts Managed" is deleted in its entirety and replaced with the following:** 

Set forth below is information regarding other funds and accounts managed by each Portfolio's (other than the Government Money Market Portfolio's) portfolio manager or managers as of December 31, 2024 (except as otherwise noted below).

**The sub-section entitled "Other Portfolios and Accounts Managed — Capital Appreciation Portfolio" is deleted in its entirety and replaced with the following:** 

**Capital Appreciation Portfolio** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Number of Other Accounts Managed<br>and Assets by Account Type** | **Number of Other Accounts Managed<br>and Assets by Account Type** | **Number of Other Accounts Managed<br>and Assets by Account Type** | **Number of Other Accounts and Assets<br>for Which Advisory Fee is<br>Performance-Based** | **Number of Other Accounts and Assets<br>for Which Advisory Fee is<br>Performance-Based** | **Number of Other Accounts and Assets<br>for Which Advisory Fee is<br>Performance-Based** |
| <br>**Name of Portfolio <br>Manager** | **Other<br>Registered<br>Investment<br>Companies** | **Other<br>Pooled<br>Investment<br>Vehicles** | **Other<br>Accounts** | **Other**<br> **Registered**<br> **Investment**<br> **Companies** | **Other<br>Pooled**<br> **Investment**<br> **Vehicles** | **Other**<br> **Accounts** |
| Sally Du, CFA\* | 12<br> $22.86 Billion | 8<br> $7.35 Billion | 0<br> $0 | 0<br> $0 | 0<br> $0 | 0<br> $0 |
| Reid Menge\* | 16<br> $42.66 Billion | 7<br> $22.94 Billion | 3<br> $282.8 Million | 0<br> $0 | 0<br> $0 | 0<br> $0 |

---

\* Information provided as of October 31, 2025.

**The first paragraph of the sub-section entitled "Portfolio Manager Compensation Overview" is deleted in its entirety and replaced with the following:** 

The discussion below describes the compensation of Mr. Menge and Ms. Du as of October 31, 2025 and the compensation of all other portfolio managers as of December 31, 2024.

**The sub-section entitled "Portfolio Manager Compensation Overview — Discretionary Incentive Compensation — Messrs. Cooke, Ruvinsky, Mathieson and Savi and Ms. Bottinelli" is deleted in its entirety and replaced with the following:** 

**Discretionary Incentive Compensation** 

*Messrs. Cooke, Mathieson, Menge and Savi and Ms. Du* 

Generally, discretionary incentive compensation for Fundamental Equities portfolio managers is based on a formulaic compensation program. BlackRock's formulaic portfolio manager compensation program is based on team revenue and pre-tax investment performance relative to appropriate competitors or benchmarks over 3- and 5-year performance periods, as applicable. In most cases, these benchmarks are the same as the benchmark or

------

benchmarks against which the performance of the Portfolio or other accounts managed by the portfolio managers are measured. BlackRock's global compensation team determines the benchmarks or rankings against which the performance of the Portfolio and other accounts managed by the portfolio management team is compared and the period of time over which performance is evaluated. With respect to these portfolio managers, such benchmarks for the Portfolios and other accounts are:

---

| | | |
|:---|:---|:---|
| **Portfolio**<br> **Manager** | **Funds Managed** | **Applicable Benchmarks** |
| Sally Du, CFA | Capital Appreciation Portfolio | S&P 500 Index; ICE BofA US 3-month Treasury Bill Index; Russell 1000 Index. |
| Reid Menge | Capital Appreciation Portfolio | MSCI ACWI 25% Call Overwrite Index; MSCI All Country World Index (Net Total Return); MSCI All Country World Information Technology Index — Net Return in USD. |
| Raffaele Savi <br>Travis Cooke, CFA Richard Mathieson | Advantage Large Cap Core Portfolio | No benchmarks |

---

A smaller element of portfolio manager discretionary compensation may include consideration of: financial results, expense control, profit margins, strategic planning and implementation, quality of client service, market share, corporate reputation, capital allocation, compliance and risk control, leadership, technology and innovation. These factors are considered collectively by BlackRock management and the relevant Chief Investment Officers.

**The sub-section entitled "Portfolio Ownership" is deleted in its entirety and replaced with the following:** 

***Portfolio Ownership***

The following table sets forth the dollar range of equity securities of the Portfolios beneficially owned by each portfolio manager as of the fiscal year ended December 31, 2024 (unless otherwise stated herein).

---

| | | |
|:---|:---|:---|
| **Portfolio<br>Manager** | **Portfolio(s) Managed** | **Dollar Range of Equity**<br> **Securities of the Portfolio(s) Owned** |
| Travis Cooke, CFA | Advantage Large Cap Core Portfolio | None |
| Sally Du, CFA\* | Capital Appreciation Portfolio | None |
| Daniel Felder, CFA | Balanced Portfolio | None |
| Philip J. Green | Balanced Portfolio | None |
| Russ Koesterich, CFA, JD | Global Allocation Portfolio | None |
| Richard Mathieson | Advantage Large Cap Core Portfolio | None |
| Reid Menge\* | Capital Appreciation Portfolio | None |
| Michael Pensky, CFA | Balanced Portfolio | None |
| Rick Rieder | Global Allocation Portfolio | None |
| Raffaele Savi | Advantage Large Cap Core Portfolio | None |

---

\* Information provided as of October 31, 2025.

**Shareholders should retain this Supplement for future reference.** 

SAI-SERIES-1225SUP