# EDGAR Filing Document

**Accession Number:** 0001725255
**File Stem:** 0001193125-26-104757
**Filing Date:** 2026-3
**Character Count:** 28447
**Document Hash:** d7ba94a1194f7c62db18011167b5f67f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-104757.hdr.sgml**: 20260312

**ACCESSION NUMBER**: 0001193125-26-104757

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20260312

**DATE AS OF CHANGE**: 20260312

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AdaptHealth Corp.
- **CENTRAL INDEX KEY:** 0001725255
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-HOME HEALTH CARE SERVICES [8082]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 823677704
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-90401
- **FILM NUMBER:** 26749804

**BUSINESS ADDRESS:**
- **STREET 1:** 555 EAST NORTH LANE
- **STREET 2:** SUITE 5075
- **CITY:** CONSHOHOCKEN
- **STATE:** PA
- **ZIP:** 19428
- **BUSINESS PHONE:** 610-424-4515

**MAIL ADDRESS:**
- **STREET 1:** 555 EAST NORTH LANE
- **STREET 2:** SUITE 5075
- **CITY:** CONSHOHOCKEN
- **STATE:** PA
- **ZIP:** 19428

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DFB Healthcare Acquisitions Corp.
- **DATE OF NAME CHANGE:** 20171213
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CASHIN RICHARD M JR
- **CENTRAL INDEX KEY:** 0001172898

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **STREET 1:** C/O FAIRCHILD SEMICONDUCTOR INC
- **STREET 2:** 82 BUNNING HILL RD MS 35-4E
- **CITY:** SOUTH PORTLAND
- **STATE:** ME
- **ZIP:** 04106

### Attached PDF Documents

**Attachment 1:** `ck0000000000-ex99_1.pdf`

_No text found in this document._

**Attachment 2:** `ck0000000000-ex99_6.pdf`

_No text found in this document._

**Attachment 3:** `ck0000000000-ex99_7.pdf`

_No text found in this document._

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 4)**

**AdaptHealth Corp.**

*(Name of Issuer)*

**Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**00653Q102**

*(CUSIP Number)*

**Gregory Belinfanti**<br>c/o One Equity Partners<br>510 Madison Avenue, 19th Floor<br>New York NY 10022<br>(212) 277-1500

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**03/10/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**OEP AHCO Investment Holdings, LLC** | Name of reporting person<br>**OEP AHCO Investment Holdings, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock, par value $0.0001 per share ("Common Stock") outstanding as of February 20, 2026, as reported in the Issuer's Annual Report on Form 10-K ("Form 10-K") filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**One Equity Partners VII, L.P.** | Name of reporting person<br>**One Equity Partners VII, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**One Equity Partners VII-A, L.P.** | Name of reporting person<br>**One Equity Partners VII-A, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**One Equity Partners VII-B, L.P.** | Name of reporting person<br>**One Equity Partners VII-B, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**OEP VII Project A Co-Investment Partners, L.P.** | Name of reporting person<br>**OEP VII Project A Co-Investment Partners, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**OEP VII Project A-I Co-Investment Partners, L.P.** | Name of reporting person<br>**OEP VII Project A-I Co-Investment Partners, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**OEP VII General Partner, L.P.** | Name of reporting person<br>**OEP VII General Partner, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**OEP VII GP, L.L.C.** | Name of reporting person<br>**OEP VII GP, L.L.C.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

| **CUSIP No.** | **00653Q102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Richard Cashin** | Name of reporting person<br>**Richard Cashin** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**15864871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**15864871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | Aggregate amount beneficially owned by each reporting person<br>**15864871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.7%** | Percent of class represented by amount in Row (11)<br>**11.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** The reported percentage is calculated based on 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.0001 per share

**(b) Name of Issuer:**
AdaptHealth Corp.

**(c) Address of Issuer's Principal Executive Offices:**
555 EAST NORTH LANE, SUITE 5075, CONSHOHOCKEN, PA, 19428

This Amendment No. 4 (this "Amendment") to Schedule 13D, which amends the Schedule 13D filed with the SEC on July 10, 2020 (the "Schedule 13D"), as amended by Amendment No. 1 (the "First Amendment") to Schedule 13D filed with the SEC on August 10, 2020, Amendment No. 2 (the "Second Amendment") to Schedule 13D filed with the SEC on August 24, 2020, and Amendment No. 3 (the "Third Amendment") to Schedule 13D filed with the SEC on August 31, 2020, is being filed by the Reporting Persons (as defined below) with respect to shares of Common Stock of the Issuer. Capitalized terms used herein but not defined have the meanings ascribed to them in the Schedule 13D, as amended by the First Amendment, Second Amendment, and Third Amendment.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5(a) of the Schedule 13D is hereby supplemented as follows:

The information set forth in rows (11) and (13) of the cover pages of this Schedule 13D is incorporated by reference into this Item 5.

Ownership percentages set forth in this Schedule 13D assume 135,914,816 shares of Common Stock outstanding as of February 20, 2026, as reported in the Issuer's Form 10-K filed with the SEC on February 24, 2026. As of the date hereof, each of the Reporting Persons may be deemed the beneficial owner of 15,864,871 shares of Common Stock, which represents approximately 11.7% of the total outstanding Common Stock.

The reported securities are directly held by Investor. Investor is owned by the Parallel Funds. The general partner of each of the Parallel Funds is OEP VII GP, and the general partner of OEP VII GP is OEP VII GP LLC. The six member investment committee of OEP VII GP acts by majority vote, which majority must include Richard Cashin. Accordingly, Richard Cashin may be deemed to have voting and investment discretion, and beneficial ownership, of the reported securities.

Neither the filing of this statement nor any of its contents shall be deemed to constitute an admission by any of the Reporting Persons that such person is the beneficial owner of any shares of Common Stock referred to herein for purposes of the Act, or for any other purpose.

**(b)**
Item 5(b) of the Schedule 13D is hereby supplemented as follows:

The information set forth in rows (7) through (10) of the cover pages of this Schedule 13D is incorporated by reference into this Item 5.

**(c)**
Item 5(c) of the Schedule 13D is hereby supplemented as follows:

Within the prior 60 days, the Reporting Persons acquired shares of Common Stock in the market transactions set forth in Exhibit 7 attached hereto.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** OEP AHCO Investment Holdings, LLC

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** One Equity Partners VII, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** One Equity Partners VII-A, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** One Equity Partners VII-B, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** OEP VII Project A Co-Investment Partners, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** OEP VII Project A-I Co-Investment Partners, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** OEP VII General Partner, L.P.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory, See Exhibit 6

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** OEP VII GP, L.L.C.

**Signature:** /s/ Gregory Belinfanti

**Name/Title:** Gregory Belinfanti / Authorized Signatory

**Date:** 03/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Richard Cashin

**Signature:** /s/ Richard Cashin

**Name/Title:** Richard Cashin

**Date:** 03/12/2026