Aytu Biopharma AYTU Institutional Ownership

NASDAQ AYTU

$2.18 -0.01 (-0.46%)

As of: Sep 9, 2026 · 11:21 AM EDT

Institutions by Trading Activity

38 Institutions

Increased 14 36.8%

Unchanged 19 50.0%

Reduced 5 13.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

75.28%

▲+37.68 pp QoQ

Shares Held by Institutions

7.91Mn

of 10.51Mn outstanding

▲+102.92% QoQ

Shares Outstanding

10.51Mn

2.60Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+4.01Mn

accumulated since last quarter

Value of Holdings

$17.49Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Aytu Biopharma, Inc (NASDAQ:AYTU) has 38 institutional investors with active 13F positions as of June 2026.

They owned 75.3% of outstanding stock in June 2026, up from 37.6% the prior quarter.
Their total shares held in AYTU increased 102.92% quarter over quarter, and separately, investors owning Aytu Biopharma increased 15.15% from a year ago.
Among the 38 funds, 14 bought more Aytu Biopharma shares, 5 sold down, and 19 held their ground.
Institutional investors collectively held 7.91Mn shares in Aytu Biopharma as of June 2026, up by 4.01Mn shares quarter on quarter, and up 4.5Mn shares year over year.
Stonepine Capital Management, LLC is the top holder of Aytu Biopharma as of June 30, 2026, with 4.99Mn shares representing 47.47% of outstanding stock.
The most significant purchases of AYTU for the quarter ending June 2026 came from Stonepine Capital Management, LLC (4.2Mn), CROWN ADVISORS MANAGEMENT, INC. (55.0K), CITADEL ADVISORS LLC (12.57K), RENAISSANCE TECHNOLOGIES LLC (11.1K), Northern Trust Corp (8.76K).
The largest sellers of Aytu Biopharma for the quarter ending June 2026 were DIADEMA PARTNERS LP (204.53K), Persistent Asset Partners Ltd (54.91K), TWO SIGMA INVESTMENTS, LP (16.65K), XTX Topco Ltd (166), SBI Securities Co., Ltd. (1).
Aytu Biopharma's 10 largest shareholders as of June 2026 include Stonepine Capital Management, LLC (4.99Mn), Nantahala Capital Management, LLC (1.09Mn), AWM Investment Company, Inc. (619.57K), VANGUARD CAPITAL MANAGEMENT LLC (261.15K), CROWN ADVISORS MANAGEMENT, INC. (200.0K), DIADEMA PARTNERS LP (148.55K), TWO SIGMA INVESTMENTS, LP (105.33K), RENAISSANCE TECHNOLOGIES LLC (104.82K), GEODE CAPITAL MANAGEMENT, LLC (93.65K), CITADEL ADVISORS LLC (49.41K) per Business Quant data.

Form 13F Holdings

38 Institutional Holders

Report period 30 Jun, 2026

Total shares held 7.91Mn

Of outstanding 75.28%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Stonepine Capital Management, LLC	0001440771	4,990,238	47.47%	▲4,197,949	+529.85%	$9.62Mn
2	Nantahala Capital Management, LLC	0001472322	1,086,812	10.34%	0	0.00%	$2.34Mn
3	AWM Investment Company, Inc.	0001535264	619,574	5.89%	0	0.00%	$1.33Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	261,146	2.48%	0	0.00%	$561.46K
5	CROWN ADVISORS MANAGEMENT, INC.	0001733248	200,000	1.90%	▲55,000	+37.93%	$430.00K
6	DIADEMA PARTNERS LP	0002026172	148,546	1.41%	▼204,531	-57.93%	$319.37K
7	TWO SIGMA INVESTMENTS, LP	0001179392	105,326	1.00%	▼16,647	-13.65%	$226.45K
8	RENAISSANCE TECHNOLOGIES LLC	0001037389	104,823	1.00%	▲11,100	+11.84%	$225.37K
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	93,647	0.89%	▲1,011	+1.09%	$201.37K
10	CITADEL ADVISORS LLC	0001423053	49,414	0.47%	▲12,573	+34.13%	$106.24K
11	VANGUARD FIDUCIARY TRUST CO	0000933478	47,048	0.45%	0	0.00%	$101.15K
12	DIMENSIONAL FUND ADVISORS LP	0000354204	45,326	0.43%	▲1,741	+3.99%	$97.45K
13	Persistent Asset Partners Ltd	0002056052	37,984	0.36%	▼54,913	-59.11%	$81.67K
14	Northern Trust Corp	0000073124	27,925	0.27%	▲8,756	+45.68%	$60.04K
15	BELLEVUE ASSET MANAGEMENT, LLC	0001801619	25,013	0.24%	0	0.00%	$53.78K
16	BlackRock, Inc.	0002012383	22,793	0.22%	0	0.00%	$49.01K
17	XTX Topco Ltd	0001828301	21,416	0.20%	▼166	-0.77%	$46.04K
18	ACADIAN ASSET MANAGEMENT LLC	0000916542	10,237	0.10%	0	0.00%	$22
19	Daytona Street Capital LLC	0002101936	10,000	0.10%	0	0.00%	$22.35K
20	UBS Group AG	0001610520	2,375	0.02%	▲714	+42.99%	$5.11K

Showing 1 to 20 of 38 holders