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  4. [Form 4] Rein Therapeutics, Inc. Insider Trading Activity

Voss-affiliated funds report RNTX share purchases near $1.37

Filing Impact
(Moderate)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Rein Therapeutics (RNTX): Voss Capital–affiliated entities reported open‑market purchases of common stock. On 10/24/2025, Voss Value Master Fund, L.P. bought 30,176 shares at $1.3904, bringing its beneficially owned balance to 729,616 shares. On 10/27/2025, the fund bought 92,642 shares at $1.37, for a new total of 822,258 shares.

Voss Value‑Oriented Special Situations Fund, L.P. bought 4,840 shares at $1.3687 on 10/27/2025, increasing to 321,608 shares, and 178,392 shares at $1.39 on 10/28/2025, increasing to 500,000 shares. The holdings are reported as indirect through the respective funds. The reporting persons state they are members of a group that collectively beneficially owns over 10% of the outstanding common stock.

Positive

  • None.

Negative

  • None.
Insider Voss Capital, LP, Voss Value Master Fund, LP, Voss Value-Oriented Special Situations Fund, LP, Voss Advisors GP, LLC, Cocke Travis W.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner
Bought 306,050 shs ($423K)
Type Security Shares Price Value
Purchase Common Stock, $0.001 par value 178,392 $1.39 $248K
Purchase Common Stock, $0.001 par value 92,642 $1.37 $127K
Purchase Common Stock, $0.001 par value 4,840 $1.3687 $7K
Purchase Common Stock, $0.001 par value 30,176 $1.3904 $42K
Holdings After Transaction: Common Stock, $0.001 par value — 500,000 shares (Indirect, By: Voss Value-Oriented Special Situations Fund, L.P.)
Footnotes (1)
  1. This Form 4 is filed jointly by Voss Value Master Fund, LP ("Voss Value Master Fund"), Voss Value-Oriented Special Situations Fund, LP ("Voss Value-Oriented Special Situations Fund"), Voss Advisors GP, LLC ("Voss GP"), Voss Capital, LP ("Voss Capital") and Travis W. Cocke (collectively, the "Reporting Persons"). Each of the Reporting Persons is a member of a group for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, that collectively beneficially owns over 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Securities owned directly by Voss Value Master Fund. Voss GP, as the general partner of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Voss Capital, as the investment manager of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Mr. Cocke, as the managing member of Voss Capital and Voss GP, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Securities owned directly by Voss Value-Oriented Special Situations Fund. Voss GP, as the general partner of Voss Value-Oriented Special Situations Fund, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund. Voss Capital, as the investment manager of Voss Value-Oriented Special Situations Fund, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund. Mr. Cocke, as the managing member of Voss Capital and Voss GP, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.3300 to $1.4000, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.3600 to $1.3700, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Voss Capital, LP
(Last) (First) (Middle)
3773 RICHMOND AVENUE
SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Rein Therapeutics, Inc. [ RNTX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
10/24/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, $0.001 par value(1) 10/24/2025 P 30,176 A $1.3904(4) 729,616 I By: Voss Value Master Fund, L.P.(2)
Common Stock, $0.001 par value(1) 10/27/2025 P 92,642 A $1.37 822,258 I By: Voss Value Master Fund, L.P.(2)
Common Stock, $0.001 par value(1) 10/27/2025 P 4,840 A $1.3687(5) 321,608 I By: Voss Value-Oriented Special Situations Fund, L.P.(3)
Common Stock, $0.001 par value(1) 10/28/2025 P 178,392 A $1.39 500,000 I By: Voss Value-Oriented Special Situations Fund, L.P.(3)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
1. Name and Address of Reporting Person*
Voss Capital, LP
(Last) (First) (Middle)
3773 RICHMOND AVENUE
SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Voss Value Master Fund, LP
(Last) (First) (Middle)
3773 RICHMOND AVENUE, SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Voss Value-Oriented Special Situations Fund, LP
(Last) (First) (Middle)
3773 RICHMOND AVENUE
SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Voss Advisors GP, LLC
(Last) (First) (Middle)
3773 RICHMOND AVENUE, SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Cocke Travis W.
(Last) (First) (Middle)
3773 RICHMOND AVENUE, SUITE 850
(Street)
HOUSTON TX 77046
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. This Form 4 is filed jointly by Voss Value Master Fund, LP ("Voss Value Master Fund"), Voss Value-Oriented Special Situations Fund, LP ("Voss Value-Oriented Special Situations Fund"), Voss Advisors GP, LLC ("Voss GP"), Voss Capital, LP ("Voss Capital") and Travis W. Cocke (collectively, the "Reporting Persons"). Each of the Reporting Persons is a member of a group for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, that collectively beneficially owns over 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
2. Securities owned directly by Voss Value Master Fund. Voss GP, as the general partner of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Voss Capital, as the investment manager of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Mr. Cocke, as the managing member of Voss Capital and Voss GP, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund.
3. Securities owned directly by Voss Value-Oriented Special Situations Fund. Voss GP, as the general partner of Voss Value-Oriented Special Situations Fund, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund. Voss Capital, as the investment manager of Voss Value-Oriented Special Situations Fund, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund. Mr. Cocke, as the managing member of Voss Capital and Voss GP, may be deemed to beneficially own the securities owned directly by Voss Value-Oriented Special Situations Fund.
4. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.3300 to $1.4000, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
5. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.3600 to $1.3700, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
Voss Capital, LP; By: /s/ Travis W. Cocke, Managing Member 10/28/2025
Voss Value Master Fund, LP; By: Voss Advisors GP, LLC; By: /s/ Travis W. Cocke, Managing Member 10/28/2025
Voss Value-Oriented Special Situations Fund, LP; By: Voss Advisors GP, LLC; By: /s/ Travis W. Cocke, Managing Member 10/28/2025
Voss Advisors GP, LLC; By: /s/ Travis W. Cocke, Managing Member 10/28/2025
/s/ Travis W. Cocke 10/28/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What did Voss-affiliated funds report in the RNTX Form 4?

They reported open‑market purchases of Rein Therapeutics common stock across four transactions between 10/24/2025 and 10/28/2025.

How many RNTX shares did Voss Value Master Fund buy and at what prices?

It purchased 30,176 shares at $1.3904 on 10/24/2025 and 92,642 shares at $1.37 on 10/27/2025.

What were Voss Value Master Fund’s holdings after the reported trades?

Beneficially owned shares increased to 729,616 after 10/24/2025 and to 822,258 after 10/27/2025.

What did Voss Value‑Oriented Special Situations Fund report buying?

It bought 4,840 shares at $1.3687 on 10/27/2025 and 178,392 shares at $1.39 on 10/28/2025.

What were the Special Situations Fund’s holdings after its trades?

Beneficially owned shares increased to 321,608 after 10/27/2025 and to 500,000 after 10/28/2025.

Are these holdings reported as direct or indirect ownership?

They are reported as indirect ownership through the respective Voss funds, as stated in the filing.

Do the reporting persons claim over 10% beneficial ownership of RNTX?

They state they are members of a group that collectively beneficially owns over 10% of the outstanding common stock.