Applied Optoelectronics AAOI Institutional Ownership

NASDAQ AAOI

$105.53 +5.15 (+5.13%)

At close: Sep 4, 2026 · 4:00 PM EDT

Institutions by Trading Activity

481 Institutions

Increased 312 64.9%

Unchanged 26 5.4%

Reduced 143 29.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

63.22%

▼-6.52 pp QoQ

Shares Held by Institutions

51.57Mn

of 81.57Mn outstanding

▲+3.70% QoQ

Shares Outstanding

81.57Mn

30.00Mn held outside 13F filers

Institutional Investors

481

filed 13F for Jun 2026

▲+107 vs prior quarter

Net Shares Added (QoQ)

+1.84Mn

accumulated since last quarter

Value of Holdings

$5.44Bn

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

Applied Optoelectronics, Inc. (NASDAQ:AAOI) has 481 institutional investors with active 13F positions as of June 2026.

These investors held 63.2% of outstanding shares in June 2026, down from 69.7% in March 2026.
They increased total shares held in Applied Optoelectronics by 3.7% from the prior quarter, while the number of investors in AAOI increased 231.72% year over year.
During the quarter, 312 of these 481 funds increased positions in AAOI, 143 reduced exposure, and 26 held steady.
Altogether, these fund groups held 51.57Mn shares in AAOI by June 2026, up by 1.84Mn shares quarter on quarter, and up 15.55Mn shares year over year.
As of June 30, 2026, the biggest holder of Applied Optoelectronics is BlackRock, Inc. at 6.45Mn shares, representing 7.91% of shares outstanding.
Top purchasers of AAOI stock for the quarter ending June 2026 included Marex Group Ltd (2.54Mn), Invesco Ltd. (1.4Mn), Clear Street Group Inc. (1.23Mn), UBS Group AG (1.14Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (849.84K).
Top sellers of AAOI stock for the quarter ending June 2026 included D. E. Shaw & Co., Inc. (2.08Mn), JANE STREET GROUP, LLC (1.72Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.62Mn), BlackRock, Inc. (742.06K), T. Rowe Price Investment Management, Inc. (584.06K).
Per Business Quant, the top 10 investors in AAOI for the quarter ending June 2026 include BlackRock, Inc. (6.45Mn), Invesco Ltd. (3.41Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.36Mn), Marex Group Ltd (2.83Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.65Mn), UBS Group AG (2.11Mn), OBERWEIS ASSET MANAGEMENT INC/ (1.79Mn), GEODE CAPITAL MANAGEMENT, LLC (1.67Mn), Value Aligned Research Advisors, LLC (1.6Mn), Goldman Sachs Group Inc (1.59Mn).

Form 13F Holdings

481 Institutional Holders

Report period 30 Jun, 2026

Total shares held 51.57Mn

Of outstanding 63.22%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,450,270	7.91%	▼742,059	-10.32%	$955.67Mn
2	Invesco Ltd.	0000914208	3,414,262	4.19%	▲1,399,857	+69.49%	$505.86Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,363,001	4.12%	▲301,479	+9.85%	$498.26Mn
4	Marex Group Ltd	0001997464	2,830,272	3.47%	▲2,541,105	+878.77%	$419.33Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,651,718	3.25%	▲849,835	+47.16%	$392.88Mn
6	UBS Group AG	0001610520	2,111,464	2.59%	▲1,140,720	+117.51%	$312.83Mn
7	OBERWEIS ASSET MANAGEMENT INC/	0000937886	1,791,127	2.20%	▼558,842	-23.78%	$265.37Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,670,936	2.05%	▲49,631	+3.06%	$247.62Mn
9	Value Aligned Research Advisors, LLC	0001963565	1,595,124	1.96%	▲327,186	+25.80%	$236.33Mn
10	Goldman Sachs Group Inc	0000886982	1,586,453	1.94%	▲501,689	+46.25%	$235.05Mn
11	State Street Corp	0000093751	1,497,617	1.84%	▼146,676	-8.92%	$221.89Mn
12	Hood River Capital Management LLC	0001578177	1,392,510	1.71%	▲116,991	+9.17%	$206.31Mn
13	Clear Street Group Inc.	0001881567	1,231,143	1.51%	▲1,231,143	0.00%	$182.41Mn
14	Morgan Stanley	0000895421	1,115,138	1.37%	▲387,572	+53.27%	$165.22Mn
15	Jpmorgan Chase & Co	0000019617	1,068,246	1.31%	▼42,886	-3.86%	$160.88Mn
16	FRONTIER CAPITAL MANAGEMENT CO LLC	0000351173	975,318	1.20%	▲691,172	+243.25%	$144.50Mn
17	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	648,986	0.80%	▲562,013	+646.19%	$96.15Mn
18	JANE STREET GROUP, LLC	0001595888	563,557	0.69%	▼1,715,761	-75.28%	$83.50Mn
19	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	504,202	0.62%	▲504,202	0.00%	$74.70Mn
20	VANGUARD FIDUCIARY TRUST CO	0000933478	488,922	0.60%	▲41,240	+9.21%	$72.44Mn

Showing 1 to 20 of 481 holders