Rein Therapeutics Ownership | Who Owns Rein Therapeutics?

Rein Therapeutics Ownership Summary

Rein Therapeutics is owned by 44.79% institutional investors, 1.53% insiders, and 53.69% retail investors. Voss capital is the largest institutional shareholder, holding 17.25% of RNTX shares. Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund, with 2.95% of its assets in Rein Therapeutics shares.

RNTX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Rein Therapeutics	44.79%	1.53%	53.69%
Sector	Healthcare Stocks	50.59%	12.40%	37.01%
Industry	Biotech Stocks	49.10%	12.14%	38.76%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Voss capital	4.39M	17.25%	$5.70M
Bios capital management, lp	1.98M	7.79%	$2.58M
Vanguard group	1.17M	4.42%	$1.35M
University of texas/texas am investment managment	511.61K	2.01%	$665.09K
Cable car capital	420.00K	1.65%	$546.00K
Prosight management, lp	411.60K	1.62%	$535.08K
Sigma planning	348.68K	1.37%	$453.28K
Geode capital management	344.69K	1.35%	$448.19K
Texas capital bank wealth management services	273.63K	1.08%	$355.71K
Gagnon securities	239.52K	0.94%	$311.38K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bios capital management, lp	1.98M	4.87%	$2.58M
Kck	22.34K	0.34%	$52.05K
Voss capital	4.39M	0.30%	$5.70M
Cable car capital	420.00K	0.19%	$546.00K
Abs direct equity fund	125.00K	0.12%	$162.50K
Palogic value management	180.00K	0.10%	$234.00K
University of texas/texas am investment managment	511.61K	0.10%	$665.09K
Prosight management, lp	411.60K	0.09%	$535.08K
Gagnon securities	239.52K	0.07%	$311.38K
Texas capital bank wealth management services	273.63K	0.02%	$355.71K

Top Buyers

Holder	Shares	% Assets	Change
Bios capital management, lp	1.98M	4.87%	291.62K
Palogic value management	180.00K	0.10%	180.00K
Vanguard fiduciary trust	154.51K	0.00%	154.51K
Voss capital	4.39M	0.30%	144.39K
Sigma planning	348.68K	0.01%	101.40K

Top Sellers

Holder	Shares	% Assets	Change
Citadel advisors	-	-	-120.08K
Jane street group	-	-	-61.96K
Susquehanna group, llp	-	-	-58.99K
Two sigma investments, lp	-	-	-41.71K
Two sigma securities	-	-	-31.71K

New Positions

Holder	Shares	% Assets	Change	Value
Palogic value management	180.00K	0.10%	180.00K	$234.00K
Vanguard fiduciary trust	154.51K	0.00%	154.51K	$200.87K
Steel peak wealth management	13.00K	0.00%	13.00K	$16.90K
Vanguard global advisers	12.77K	-	12.77K	$16.61K
New millennium group	2.04K	0.00%	2.04K	$2.36K

Sold Out

Holder	Change
Citigroup	-1.00
Wells fargo & company/mn	-20.00
Game plan financial advisors	-25.00
Jpmorgan chase	-32.00
Advisor group	-70.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	45	-2.17%	11,396,524	5.53%	44	2.67%	25	-3.85%	4	-20.00%
Dec 31, 2025	22	-43.59%	2,725,534	-67.89%	10	0.84%	11	-15.38%	2	-75.00%
Sep 30, 2025	19	-45.71%	3,856,409	-42.07%	15	2.10%	5	-64.29%	3	-40.00%
Jun 30, 2025	35	-5.41%	6,657,209	10.63%	303,761	0.04%	14	-62.16%	5	-
Mar 31, 2025	36	-	5,995,080	-	27,636	-	36	-	-	-

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Morn Total Stk Mkt Idx Investor	2.52M	2.95%	793.30K
Vanguard Total Stock Mkt Idx Inv	2.52M	2.95%	793.30K
Vanguard MStar Total Stk Mkt Idx Invest	2.52M	2.94%	-
Vanguard Institutional Extnd Mkt Idx Tr	785.54K	0.92%	-
Fidelity Extended Market Index	369.92K	0.43%	238.37K
BlackRock Extended Equity Market Fund K	195.24K	0.23%	195.24K
Northern Trust Extended Eq Market Idx	88.54K	0.10%	52.71K
NT Ext Equity Mkt Index Fund - Lending	88.54K	0.10%	52.71K
iShares Micro-Cap ETF	85.92K	0.10%	-1.15K
Fidelity Series Total Market Index	83.91K	0.10%	53.93K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 27, 2026	VON RICKENBACH JOSEF H	-	Buy	$4.82K
May 21, 2026	VON RICKENBACH JOSEF H	-	Buy	$3.56K
May 22, 2026	VON RICKENBACH JOSEF H	-	Buy	$16.71K
May 26, 2026	VON RICKENBACH JOSEF H	-	Buy	$24.47K
Apr 30, 2026	WINDSOR JAMES BRIAN	See Remarks	Buy	$25.00K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	5	-
2025 Q4	5	-
2025 Q3	-	-

RNTX Ownership FAQ

Who Owns Rein Therapeutics?

Rein Therapeutics shareholders are primarily institutional investors at 44.79%, followed by 1.53% insiders and 53.68% retail investors. The average institutional ownership in Rein Therapeutics's industry, Biotech Stocks , is 49.10%, which Rein Therapeutics falls below.

Who owns the most shares of Rein Therapeutics?

Rein Therapeutics’s largest shareholders are Voss capital (4.39M shares, 17.25%), Bios capital management, lp (1.98M shares, 7.79%), and Vanguard group (1.17M shares, 4.42%). Together, they hold 29.46% of Rein Therapeutics’s total shares outstanding.

Does Blackrock own Rein Therapeutics?

BlackRock is not among the top 10 institutional shareholders of Rein Therapeutics.

Who is Rein Therapeutics’s biggest shareholder by percentage of total assets invested?

Bios capital management, lp is Rein Therapeutics’s biggest shareholder by percentage of total assets invested, with 4.87% of its assets in 1.98M Rein Therapeutics shares, valued at 2.58M$.

Who is the top mutual fund holder of Rein Therapeutics shares?

Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund holder of Rein Therapeutics shares, with 2.95% of its total shares outstanding invested in 2.52M Rein Therapeutics shares.

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