# EDGAR Filing Document

**Accession Number:** 0002034406
**File Stem:** 0001213900-25-117121
**Filing Date:** 2025-12
**Character Count:** 5808
**Document Hash:** 3e1bdff754539b5f1598f410b47f2780
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-117121.hdr.sgml**: 20251202

**ACCESSION NUMBER**: 0001213900-25-117121

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251202

**DATE AS OF CHANGE**: 20251202

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tortoise Capital Series Trust
- **CENTRAL INDEX KEY:** 0002034406

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23997
- **FILM NUMBER:** 251542564

**BUSINESS ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211
- **BUSINESS PHONE:** 866-362-9331

**MAIL ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tortoise Capital Series Trust
- **CENTRAL INDEX KEY:** 0002034406

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-281744
- **FILM NUMBER:** 251542563

**BUSINESS ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211
- **BUSINESS PHONE:** 866-362-9331

**MAIL ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211

## Series and Classes Contracts Data

### TORTOISE MLP ETF (Series ID: S000097600)

| Class ID   | Class Name       | Ticker Symbol   |
|:---|:---|:---|
| C000267050 | TORTOISE MLP ETF |  |

**As filed with the Securities and Exchange Commission on December 2, 2025**

**Securities Act Registration No. 333-281744<br> Investment Company Act Registration No. 811-23997**

**UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION<br> WASHINGTON, D.C. 20549**

**FORM N-1A**

**REGISTRATION STATEMENT UNDER<br> THE SECURITIES ACT OF 1933**

---

| | |
|:---|:---|
| **Pre-Effective Amendment No. ____** | **☐** |
| **Post-Effective Amendment No. 21** | **☒** |

---

**and/or**

**REGISTRATION STATEMENT UNDER<br> THE INVESTMENT COMPANY ACT OF 1940**

---

| | |
|:---|:---|
| **Amendment No. 23** | **☒** |

---

**TORTOISE CAPITAL SERIES TRUST<br> (Exact Name of Registrant as Specified in Charter)**

**5901 College Boulevard, Suite 400<br> Overland Park, Kansas 66211<br> (Address of Principal Executive Offices) (Zip Code)**

**(913) 981-1020<br> (Registrant's Telephone Number, including Area Code)**

**Tom Florence<br> 5901 College Boulevard, Suite 400<br> Overland Park, Kansas 66211<br> (Name and Address of Agent for Service)**

 ****

***Copies to*:<br> Deborah Bielicke Eades<br> Vedder Price P.C.<br> 222 North LaSalle Street<br> Chicago, Illinois 60601**

It is proposed that this filing will become effective (check appropriate box):

☐ Immediately upon filing pursuant to paragraph (b)

☒ On December 12, 2025 pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)

☐ On [•] pursuant to paragraph (a)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ On [•] pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:

&nbsp;&nbsp;&nbsp;&nbsp;☒ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

**<u>EXPLANATORY NOTE</u>**

The sole purpose of this filing is to delay the effectiveness of Post-Effective Amendment No. 19 to Tortoise Capital Series Trust's Registration Statement related solely to Tortoise MLP ETF until December 12, 2025. [Parts A, B and C of Registrant's Post-Effective Amendment No. 19 under the Securities Act of 1933 and Amendment No. 21 under the Investment Company Act of 1940, filed on September 19, 2025](https://www.sec.gov/Archives/edgar/data/2034406/000121390025089609/ea0256637-01_485apos.htm), are incorporated by reference herein.

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant has duly caused this registration statement on Form N-1A to be signed on its behalf by the undersigned, duly authorized, in the city of Overland Park, and State of Kansas on this 1<sup>st</sup> day of December 2025.

---

| | |
|:---|:---|
| TORTOISE CAPITAL SERIES TRUST | TORTOISE CAPITAL SERIES TRUST |
| By: | /s/ Tom Florence |
|  | Tom Florence |
|  | President and Chief Executive Officer |

---

Pursuant to the requirements of the Securities Act of 1933, the following persons in the capacities and on the dates indicated have signed the Registration Statement below.

---

| | | |
|:---|:---|:---|
| **Signatures** | **Title** | **Date** |
| /s/ Tom Florence | Principal Executive Officer and Trustee | December 1, 2025 |
| Tom Florence |  |  |
| /s/ Peter Sattelmair | Principal Financial Officer and | December 1, 2025 |
| Peter Sattelmair | Principal Accounting Officer |  |
| *\** | Trustee |  |
| Andrew J. Iseman |  |  |
| *\** | Trustee |  |
| John C. Maxwell |  |  |
| *\** | Trustee |  |
| Carrie Ramirez Schoffman |  |  |
| *\** | Trustee |  |
| Keith A. Fletcher |  |  |
| /s/ Jeffrey Kruske | Attorney-In-Fact | December 1, 2025 |
| Jeffrey Kruske |  |  |

---

\* An original power of attorney authorizing, among others, Jeffrey Kruske to execute this registration statement, and amendments thereto, for each of the Trustees of the Registrant is filed, has been executed and is incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registrant's Registration Statement on Form N-1A filed on October 18, 2024.