# EDGAR Filing Document

**Accession Number:** 0000810902
**File Stem:** 0001410368-25-043587
**Filing Date:** 2025-12
**Character Count:** 7291
**Document Hash:** 8bb44de884676c2f65fc70ea45e6e0e7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-043587.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001410368-25-043587

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**EFFECTIVENESS DATE**: 20251229

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)
- **CENTRAL INDEX KEY:** 0000810902

**ORGANIZATION NAME:**
- **EIN:** 136891420
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-12112
- **FILM NUMBER:** 251608612

**BUSINESS ADDRESS:**
- **STREET 1:** 767 FIFTH AVE
- **STREET 2:** 49TH FL
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10153
- **BUSINESS PHONE:** 2125832000

**MAIL ADDRESS:**
- **STREET 1:** 767 FIFTH AVE
- **STREET 2:** 49TH FL
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10153

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BARON ASSET FUND
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### BARON ASSET FUND (Series ID: S000000582)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| BARON ASSET FUND     | BARAX         | C000001635 |
| Institutional Shares | BARIX         | C000077818 |
| R6 Shares            | BARUX         | C000165210 |

---

### BARON GROWTH FUND (Series ID: S000000583)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| BARON GROWTH FUND    | BGRFX         | C000001636 |
| Institutional Shares | BGRIX         | C000077819 |
| R6 Shares            | BGRUX         | C000165211 |

---

### BARON SMALL CAP FUND (Series ID: S000000584)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| BARON SMALL CAP FUND | BSCFX         | C000001637 |
| Institutional Shares | BSFIX         | C000077820 |
| R6 Shares            | BSCUX         | C000165212 |

---

### BARON OPPORTUNITY FUND (Series ID: S000000585)

---

|  |  |  |
|:---|:---|:---|
| Class Name             | Ticker Symbol | Class ID   |
| BARON OPPORTUNITY FUND | BIOPX         | C000001638 |
| Institutional Shares   | BIOIX         | C000077821 |
| R6 Shares              | BIOUX         | C000174753 |

---

### BARON FIFTH AVENUE GROWTH FUND (Series ID: S000000586)

---

|  |  |  |
|:---|:---|:---|
| Class Name                     | Ticker Symbol | Class ID   |
| BARON FIFTH AVENUE GROWTH FUND | BFTHX         | C000001639 |
| Institutional Shares           | BFTIX         | C000077822 |
| R6 Shares                      | BFTUX         | C000165213 |

---

### BARON DISCOVERY FUND (Series ID: S000042178)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| BARON DISCOVERY FUND | BDFFX         | C000130959 |
| Institutional Shares | BDFIX         | C000130960 |
| R6 Shares            | BDFUX         | C000174754 |

---

### Baron Durable Advantage Fund (Series ID: S000060168)

---

|  |  |  |
|:---|:---|:---|
| Class Name                   | Ticker Symbol | Class ID   |
| Baron Durable Advantage Fund | BDAFX         | C000196921 |
| Institutional Shares         | BDAIX         | C000196922 |
| R6 Shares                    | BDAUX         | C000196923 |

---

## Series and Classes Contracts Data

### BARON ASSET FUND (Series ID: S000000582)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000001635 | BARON ASSET FUND     | BARAX           |
| C000077818 | Institutional Shares | BARIX           |
| C000165210 | R6 Shares            | BARUX           |

### BARON GROWTH FUND (Series ID: S000000583)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000001636 | BARON GROWTH FUND    | BGRFX           |
| C000077819 | Institutional Shares | BGRIX           |
| C000165211 | R6 Shares            | BGRUX           |

### BARON SMALL CAP FUND (Series ID: S000000584)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000001637 | BARON SMALL CAP FUND | BSCFX           |
| C000077820 | Institutional Shares | BSFIX           |
| C000165212 | R6 Shares            | BSCUX           |

### BARON OPPORTUNITY FUND (Series ID: S000000585)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000001638 | BARON OPPORTUNITY FUND | BIOPX           |
| C000077821 | Institutional Shares   | BIOIX           |
| C000174753 | R6 Shares              | BIOUX           |

### BARON FIFTH AVENUE GROWTH FUND (Series ID: S000000586)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000001639 | BARON FIFTH AVENUE GROWTH FUND | BFTHX           |
| C000077822 | Institutional Shares           | BFTIX           |
| C000165213 | R6 Shares                      | BFTUX           |

### BARON DISCOVERY FUND (Series ID: S000042178)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000130959 | BARON DISCOVERY FUND | BDFFX           |
| C000130960 | Institutional Shares | BDFIX           |
| C000174754 | R6 Shares            | BDFUX           |

### Baron Durable Advantage Fund (Series ID: S000060168)

| Class ID   | Class Name                   | Ticker Symbol   |
|:---|:---|:---|
| C000196921 | Baron Durable Advantage Fund | BDAFX           |
| C000196922 | Institutional Shares         | BDAIX           |
| C000196923 | R6 Shares                    | BDAUX           |

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0000810902

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)

- **Address:** 767 Fifth Avenue, New York, NY 10153

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-5032

   **Securities Act File Number:** 033-12112

**4(a). Last day of fiscal year for which this Form is filed:** 09/30/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $6268881745.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $7289843901.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $4457698095.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $11747541996.00

- **(v) Net sales:** $0.00

- **(vi) Redemption credits available for use in future years:** $-5478660251.00

- **(vii) Multiplier for determining registration fee:** 0.0001381

- **(viii) Registration fee due:** $0.00

**Signatures**

**Name and Title:** Chief Legal Officer

**Date:** 12/23/2025

**Signature:** Kristine Treglia