$RNTX

$0.70 +$0.12 (20.75%) Close

$RNTX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 86.3M shares outstanding

Who owns RNTX?

By type of holder

Institutions 47.2% Insiders 0.3% Everyone else 52.5%

Concentration Top 10 holders own 37.4%

Voss Capital, LP 6.1% · Cable Car Capital, LP 6.0%

Institutional ownership

47.2%

+34.0 pts vs last qtr

Institutional holders

+13 vs last qtr

Net shares bought

+29.3M

by institutions in Q2 2026

New / sold out

21 / 8

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Cable Car Capital, LP +4.8M
ADAR1 Capital Management, LLC NEW +4.5M

Biggest sellers in Q2 2026

ABS Direct Equity Fund LLC SOLD OUT −125.0K
Two Sigma Securities, LLC SOLD OUT −31.7K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Rein Therapeutics Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2022–FY2025

+460.5%

+77.64% a year

Each share's claim on the business

−82.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $6.61M

over 4 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years11% 1–3 years45% Under 1 year44%

Quarterly turnover

131.0%

of institutional shares changed hands

Top 10 managers, median time held

1.5 years

Super Investors

Investment managers reporting RNTX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
VC Voss Capital, LP	5.3M	6.10%	+873.6K (+19.9%)	2024	0.3%
Shares held by quarter Peak holding5.3M (Q2'26) Change over 8 quarters+5.3M Share of the company6.100% Voss Capital, LP's full portfolio →
CC Cable Car Capital, LP	5.2M	6.02%	+4.8M (+1136.9%)	2024	0.1%
Shares held by quarter Peak holding5.2M (Q2'26) Change over 8 quarters+4.8M Share of the company6.020% Cable Car Capital, LP's full portfolio →

Voss Capital, LP

5.3M

% of company

6.10%

Change vs last qtr

+873.6K (+19.9%)

Held since

2024

Cable Car Capital, LP

5.2M

% of company

6.02%

Change vs last qtr

+4.8M (+1136.9%)

Held since

2024

28 more super investors behind a free account

See every manager holding Rein Therapeutics Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting RNTX on Form N-PORT; together they hold 4.8% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.62M	2.5M	2.92%	0.00%	June 30, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$817K	785.5K	0.91%	0.00%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.62M

% of company

2.92%

% of the fund

0.00%

As of

June 30, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$817K

% of company

0.91%

% of the fund

0.00%

As of

June 30, 2026

9 more funds behind a free account

See every fund holding Rein Therapeutics Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
VR Von Rickenbach Josef H Insider	267.3K	0.31%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.310% Von Rickenbach Josef H's insider activity →
WJ Windsor James Brian Insider	22.0K	0.03%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.030% Windsor James Brian's insider activity →

Von Rickenbach Josef H

Insider

267.3K

% of company

0.31%

Change vs last qtr

—

Held since

—

Windsor James Brian

Insider

22.0K

% of company

0.03%

Change vs last qtr

—

Held since

—

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