# EDGAR Filing Document

**Accession Number:** 0001733413
**File Stem:** 0001193125-23-030120
**Filing Date:** 2023-2
**Character Count:** 23519
**Document Hash:** f512c818859ee656c2372e37c1851516
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-030120.hdr.sgml**: 20230209

**ACCESSION NUMBER**: 0001193125-23-030120

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230209

**DATE AS OF CHANGE**: 20230209

**GROUP MEMBERS**: ASGARD INVESTMENT CORP. II

**GROUP MEMBERS**: CLINT D. CARLSON

**GROUP MEMBERS**: DOUBLE BLACK DIAMOND OFFSHORE LTD.

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TFF Pharmaceuticals, Inc.
- **CENTRAL INDEX KEY:** 0001733413
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 824344737
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91311
- **FILM NUMBER:** 23606651

**BUSINESS ADDRESS:**
- **STREET 1:** 2600 VIA FORTUNA, SUITE 360
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78746
- **BUSINESS PHONE:** 737-802-1973

**MAIL ADDRESS:**
- **STREET 1:** 2600 VIA FORTUNA, SUITE 360
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78746
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CARLSON CAPITAL L P
- **CENTRAL INDEX KEY:** 0001056973
- **IRS NUMBER:** 752494317
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 2100 MCKINNEY AVE
- **STREET 2:** STE 1800
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75201
- **BUSINESS PHONE:** 2149329600

**MAIL ADDRESS:**
- **STREET 1:** 2100 MCKINNEY AVE
- **STREET 2:** STE 1800
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75201

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**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**SCHEDULE 13G** 

**Under the Securities Exchange Act of 1934** 

**(Amendment No. 1)\*** 

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## TFF Pharmaceuticals, Inc.
**(Name of Issuer)** 

**Common Stock, $0.001 par value per share** 

**(Title of Class of Securities)** 

**87241J104** 

**(CUSIP Number)** 

**December 31, 2022** 

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

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Check the appropriate box to designate the rule pursuant to which this Schedule is filed :

☐ Rule 13d-1(b)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ Rule 13d-1(c)

☐ Rule 13d-1(d)

\* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes).

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| | | |
|:---|:---|:---|
| **CUSIP No. 87241J104** | **SCHEDULE 13G** | **Page 2 of 11 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **1** | &nbsp;&nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Double Black Diamond Offshore Ltd. |
| &nbsp;&nbsp;&nbsp; **2** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; **3** | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; **4** | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;Cayman Islands |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **5** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **6** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **7** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **8** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **9** | &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>&nbsp;&nbsp;&nbsp;&nbsp;☐ |
| &nbsp;&nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>&nbsp;&nbsp;&nbsp;&nbsp;5.1% |
| &nbsp;&nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;CO |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 87241J104** | **SCHEDULE 13G** | **Page 3 of 11 Pages** |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **1** | &nbsp;&nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Carlson Capital, L.P. |
| &nbsp;&nbsp;&nbsp; **2** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; **3** | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; **4** | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;Delaware |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **5** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **6** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **7** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **8** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **9** | &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>&nbsp;&nbsp;&nbsp;&nbsp;☐ |
| &nbsp;&nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>&nbsp;&nbsp;&nbsp;&nbsp;5.1% |
| &nbsp;&nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;PN, IA |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 87241J104** | **SCHEDULE 13G** | **Page 4 of 11 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **1** | &nbsp;&nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Asgard Investment Corp. II |
| &nbsp;&nbsp;&nbsp; **2** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; **3** | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; **4** | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;Delaware |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **5** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **6** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **7** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **8** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **9** | &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>&nbsp;&nbsp;&nbsp;&nbsp;☐ |
| &nbsp;&nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>&nbsp;&nbsp;&nbsp;&nbsp;5.1% |
| &nbsp;&nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;CO |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 87241J104** | **SCHEDULE 13G** | **Page 5 of 11 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **1** | &nbsp;&nbsp;&nbsp;&nbsp;NAMES OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Clint D. Carlson |
| &nbsp;&nbsp;&nbsp; **2** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; **3** | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; **4** | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;United States |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **5** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **6** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **7** | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | **8** | &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; **9** | &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;1,842,000 |
| &nbsp;&nbsp;&nbsp;**10** | &nbsp;&nbsp;&nbsp;&nbsp;CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES<br>&nbsp;&nbsp;&nbsp;&nbsp;☐ |
| &nbsp;&nbsp;&nbsp;**11** | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>&nbsp;&nbsp;&nbsp;&nbsp;5.1% |
| &nbsp;&nbsp;&nbsp;**12** | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IN |

---

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**Explanatory Note** 

This Amendment No. 1 (this the "Amendment") amends the initial statement on Schedule 13G filed by the Reporting Persons on November 22, 2022 (as amended prior to the date hereof, the "<u>Original Filing</u>", and as amended by this Amendment No. 1, the "<u>Statement</u>").

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| | |
|:---|:---|
| **Item 1(a).** | **NAME OF ISSUER**  |

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TFF Pharmaceuticals, Inc., a Delaware corporation (the "<u>Issuer</u>").

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| | |
|:---|:---|
| **Item 1(b).** | **ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES**  |

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1751 River Run, Suite 400

Fort Worth, Texas 76107

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| | |
|:---|:---|
| **Item 2(a).** | **NAME OF PERSON FILING**  |

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This statement is filed by:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Double Black Diamond Offshore Ltd., a Cayman Islands exempted company (the "<u>Fund</u>"), with respect to Common Stock, par value $0.001 per share, of the Issuer (the "<u>Common Stock</u>") held or beneficially owned directly by the Fund;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Carlson Capital, L.P., a Delaware limited partnership ("<u>Carlson Capital</u>"), which serves as the investment manager to the Fund with respect to any shares of Common Stock of the Issuer held by the Fund;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Asgard Investment Corp. II, a Delaware corporation ("<u>Asgard II</u>"), which serves as the general partner of Carlson Capital, with respect to the Common Stock directly held by the Fund; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Mr. Clint D. Carlson, a United States citizen ("<u>Mr.</u> <u>Carlson</u>"), who is the sole stockholder of Asgard II and serves as president of Asgard II and Carlson Capital, with respect to the Common Stock directly held by the Fund.

The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons".

The filing of this statement should not be construed as an admission that any of the Reporting Persons is, for the purposes of Section 13 of the Act, the beneficial owner of the Common Stock reported herein.

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| | |
|:---|:---|
| **Item 2(b).** | **ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE**  |

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The address of the principal business office of each of the Reporting Persons is 2100 McKinney Avenue, Suite 1900, Dallas, Texas 75201.

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| | |
|:---|:---|
| **Item 2(c).** | **CITIZENSHIP**  |

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The Fund is a Cayman Islands exempted company. Carlson Capital is a Delaware limited partnership. Asgard II is a Delaware corporation. Mr. Carlson is a United States citizen.

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| | |
|:---|:---|
| **Item 2(d).** | **TITLE OF CLASS OF SECURITIES**  |

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Common Stock, par value $0.001 per share (the "<u>Common Stock</u>").

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| | |
|:---|:---|
| **Item 2(e).** | **CUSIP No.**  |

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87241J104

**Item 3.** **IF THIS STATEMENT IS FILED PURSUANT TO §§ 240.13D-1(B), OR 240.13D-2(B) OR (C), CHECK WHETHER THE PERSON FILING IS A:** <br>

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| | | |
|:---|:---|:---|
| (a) | ☐ | Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o); |
| (b) | ☐ | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); |
| (c) | ☐ | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c); |
| (d) | ☐ | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); |
| (e) | X | An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E); |
| (f) | ☐ | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F); |
| (g) | ☐ | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G); |
| (h) | ☐ | A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); |
| (i) | ☐ | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); |
| (j) | ☐ | A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). |
| (k) | ☐ | Group, in accordance with § 240.13d-1(b)(1)(ii)(K). |

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If filing as a non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J), please specify the type of institution: __________

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**Item 4.** **OWNERSHIP** <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A. The Fund:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: 1,842,000 shares of Common Stock (consisting of 1,242,000 shares of Common Stock
owned, plus 600,000 shares of Common Stock issuable upon exercise of 1,200,000 warrants)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class: 5.1%

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) (i) Sole power to vote or direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or direct the vote: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or direct the disposition: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or direct the disposition: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B. Carlson Capital:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class: 5.1%

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) (i) Sole power to vote or direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or direct the vote: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or direct the disposition: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or direct the disposition: 1,842,000

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C. Asgard II:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class: 5.1%

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) (i) Sole power to vote or direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or direct the vote: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or direct the disposition: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or direct the disposition: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D. Mr. Carlson:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class: 5.1%

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) (i) Sole power to vote or direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or direct the vote: 1,842,000

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or direct the disposition: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or direct the disposition: 1,842,000

The percentages reported in this Schedule 13G are based on 36,193,085 shares of Common Stock outstanding on December 20, 2022, as reported in the Issuer's Proxy Statement on Form DEF14A filed with the Securities and Exchange Commission on December 27, 2022.

**Item 5.** **OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS** <br>

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following ☐.

**Item 6.** **OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON** <br>

Not applicable.

**Item 7.** **IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL PERSON** <br>

Not applicable.

**Item 8.** **IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP** <br>

Not applicable.

**Item 9.** **NOTICE OF DISSOLUTION OF GROUP** <br>

Not applicable.

**Item 10.** **CERTIFICATION** <br>

Each of the Reporting Persons hereby makes the following certification:

By signing below, each Reporting Person certifies that, to the best of his or its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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**SIGNATURES** 

After reasonable inquiry and to the best of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

DATED: February 9, 2023

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| | |
|:---|:---|
| **DOUBLE BLACK DIAMOND OFFSHORE LTD.** | **DOUBLE BLACK DIAMOND OFFSHORE LTD.** |
| By: | Carlson Capital, L.P., its investment manager |
| By: | Asgard Investment Corp. II, its general partner |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **CARLSON CAPITAL, L.P.** | **CARLSON CAPITAL, L.P.** |
| By: | Asgard Investment Corp. II, its general partner |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **ASGARD INVESTMENT CORP. II** | **ASGARD INVESTMENT CORP. II** |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **CLINT D. CARLSON** | **CLINT D. CARLSON** |
| /s/ Clint D. Carlson | /s/ Clint D. Carlson |

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## Ex-99.I

**EXHIBIT I** 

**JOINT FILING AGREEMENT** 

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of TFF Pharmaceuticals, Inc., and that this Joint Filing Agreement be included as an Exhibit to such joint filing.

Each of the undersigned acknowledges that each shall be responsible for the timely filing of any statement (including amendments) on Schedule 13G, and for the completeness and accuracy of the information concerning him or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other persons making such filings, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated: February 9, 2023

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| | |
|:---|:---|
| **DOUBLE BLACK DIAMOND OFFSHORE LTD.** | **DOUBLE BLACK DIAMOND OFFSHORE LTD.** |
| By: | Carlson Capital, L.P., its investment manager |
| By: | Asgard Investment Corp. II, its general partner |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **CARLSON CAPITAL, L.P.** | **CARLSON CAPITAL, L.P.** |
| By: | Asgard Investment Corp. II, its general partner |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **ASGARD INVESTMENT CORP. II** | **ASGARD INVESTMENT CORP. II** |
| By: | /s/ Clint D. Carlson |
| Name: | Clint D. Carlson |
| Title: | President |
| **CLINT D. CARLSON** | **CLINT D. CARLSON** |
| /s/ Clint D. Carlson | /s/ Clint D. Carlson |

---