Rein Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
Rein Therapeutics Inc.
Former names
Aileron Therapeutics, Inc.
Ownership
Public
Status
Active
Sector (GICS)
Health Care
SIC code
2834 — Pharmaceutical Preparations
Headquarters city
Austin
Headquarters state / province
Texas
Headquarters country
United States
Fiscal year end
December
Ticker symbol
RNTX
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001420565
EIN
13-4196017

Board of directors

Director election results

Annual meeting of July 20, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

2 of this board's directors also sit on 3 other boards. 2 are in the same sector.

Network of Rein Therapeutics Inc.'s board connections Ascendis Pharma A/S Ascendis Pharma A/S Mirum Pharmaceuticals Inc. Mirum Pharmaceuticals... Research Alliance Corporation IV Research Alliance Corp... Alan A. Musso Alan A. Musso William Fairey William Fairey Rein Therapeutics Inc.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$201,804
6 purchases by 3 insiders
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
May 27, 2026 Rickenbach Josef H. Von Director Open-market purchase +4,500 $1.07 $4,815
May 26, 2026 Rickenbach Josef H. Von Director Open-market purchase +23,190 $1.06 $24,581
May 22, 2026 Rickenbach Josef H. Von Director Open-market purchase +15,950 $1.05 $16,748
May 21, 2026 Rickenbach Josef H. Von Director Open-market purchase +3,420 $1.04 $3,557
Apr 30, 2026 James Brian Windsor Director, Officer (See Remarks) Open-market purchase +25,000 $1.00 $25,000
Nov 14, 2025 Voss Value Master Fund, LP 10% owner Open-market purchase +104,183 $1.22 $127,103
Oct 28, 2025 Voss Value-Oriented Special Situations Fund, LP 10% owner Open-market purchase +178,392 $1.39 $247,965
Oct 27, 2025 Voss Value-Oriented Special Situations Fund, LP 10% owner Open-market purchase +92,642 $1.37 $126,920
Oct 27, 2025 Voss Value-Oriented Special Situations Fund, LP 10% owner Open-market purchase +4,840 $1.37 $6,631
Oct 24, 2025 Voss Value-Oriented Special Situations Fund, LP 10% owner Open-market purchase +30,176 $1.39 $41,945
Dec 5, 2024 WINDSOR JAMES BRIAN Officer (President and CEO) Open-market purchase +239 $2.24 $535
Dec 5, 2024 WINDSOR JAMES BRIAN Officer (President and CEO) Open-market purchase +161 $2.25 $362
Jun 17, 2024 UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 10% owner Open-market sale −4,707 $3.25 $15,298
Jun 14, 2024 UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 10% owner Open-market sale −1,900 $3.30 $6,270
Jun 12, 2024 UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO 10% owner Open-market sale −9,341 $3.25 $30,358

Organizations in the same sector, closest in location and size first.

Questions about Rein Therapeutics Inc.

How many directors are on Rein Therapeutics Inc.'s board?

Rein Therapeutics Inc.'s board has 6 directors: Alan A. Musso, James Brian Windsor, Manuel Aivado, Reinhard J. Ambros, Rickenbach Josef H. Von and William Fairey.

Are Rein Therapeutics Inc. insiders buying or selling shares?

Over the last 12 months, Rein Therapeutics Inc. insiders bought $201,804 of shares in 6 purchases and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

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