Applied Optoelectronics AAOI Institutional Ownership

NASDAQ AAOI

$78.20 +2.63 (+3.48%)

At close: Oct 19, 2026 · 4:00 PM EDT

As of the 13F quarter ended Jun 30, 2026, 481 institutions held 60.55% of Applied Optoelectronics (AAOI) shares outstanding. Versus the prior quarter, institutional ownership was down 6.49 percentage points, the holder count rose by 110 and shares held were down 3.49%. The largest holder is BlackRock, Inc. with 6.45Mn shares (7.64% of outstanding).

Updated Oct 11, 2026 Applied Optoelectronics (AAOI) stock price and overview

Institutions by Trading Activity

481 Institutions

Increased 313 65.1%

Unchanged 25 5.2%

Reduced 143 29.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

60.55%

▼-6.49 pp QoQ

Shares Held by Institutions

51.09Mn

of 84.39Mn outstanding

▼-3.49% QoQ

Shares Outstanding

84.39Mn

33.29Mn held outside 13F filers

Institutional Investors

481

filed 13F for Jun 2026

▲+110 vs prior quarter

Net Shares Added (QoQ)

-1.85Mn

distributed since last quarter

Value of Holdings

$4.28Bn

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

Updated Oct 11, 2026

Applied Optoelectronics, Inc. (NASDAQ:AAOI) had 481 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

These investors held 60.55% of outstanding shares in Q2 2026, down from 67.04% the quarter before.
Total shares held in Applied Optoelectronics fell 3.49% from Q1 2026, while the number of holders rose 236.36% from Q2 2025.
Of the 481 holders of AAOI in Q2 2026, 313 added to their positions, 143 reduced their stakes and 25 left their positions unchanged.
Institutional investors held 51.09Mn shares of Applied Optoelectronics in total at the end of Q2 2026, down 1.85Mn from the prior quarter and up 19.44Mn from a year earlier.
BlackRock, Inc. led 13F holders of AAOI with 6.45Mn shares as of June 30, 2026, or 7.64% of shares outstanding.
The biggest increases in AAOI positions during Q2 2026 came from Marex Group Ltd (+2.54Mn shares), Invesco Ltd. (+1.4Mn shares), UBS Group AG (+1.14Mn shares), Vanguard Portfolio Management LLC (+849.84K shares) and Frontier Capital Management Co LLC (+691.17K shares).
The biggest cuts to AAOI positions during Q2 2026 came from D. E. Shaw & Co., Inc. (-2.08Mn shares), Jane Street Group, LLC (-1.72Mn shares), T. Rowe Price Associates Inc (-1.62Mn shares), BlackRock, Inc. (-742.06K shares) and T. Rowe Price Investment Management, Inc. (-584.06K shares).
Business Quant data shows the 10 biggest positions in Applied Optoelectronics as of Q2 2026 were held by BlackRock, Inc. (6.45Mn shares), Invesco Ltd. (3.41Mn shares), Vanguard Capital Management LLC (3.36Mn shares), Marex Group Ltd (2.83Mn shares), Vanguard Portfolio Management LLC (2.65Mn shares), UBS Group AG (2.11Mn shares), Oberweis Asset Management Inc (1.79Mn shares), Geode Capital Management, LLC (1.67Mn shares), Value Aligned Research Advisors, LLC (1.6Mn shares) and Goldman Sachs Group Inc (1.59Mn shares).

Form 13F Holdings

482 Institutional Holders

Report period 30 Jun, 2026

Total shares held 51.09Mn

Of outstanding 60.55%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,450,270	7.64%	▼742,059	-10.32%	$955.67Mn
2	Invesco Ltd.	0000914208	3,414,262	4.05%	▲1,399,857	+69.49%	$505.86Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,363,001	3.99%	▲301,479	+9.85%	$498.26Mn
4	Marex Group Ltd	0001997464	2,830,272	3.35%	▲2,541,105	+878.77%	$419.33Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,651,718	3.14%	▲849,835	+47.16%	$392.88Mn
6	UBS Group AG	0001610520	2,111,464	2.50%	▲1,140,720	+117.51%	$312.83Mn
7	OBERWEIS ASSET MANAGEMENT INC/	0000937886	1,791,127	2.12%	▼558,842	-23.78%	$265.37Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,670,936	1.98%	▲49,631	+3.06%	$247.62Mn
9	Value Aligned Research Advisors, LLC	0001963565	1,595,124	1.89%	▲327,186	+25.80%	$236.33Mn
10	Goldman Sachs Group Inc	0000886982	1,586,453	1.88%	▲501,689	+46.25%	$235.05Mn
11	State Street Corp	0000093751	1,497,617	1.77%	▼146,676	-8.92%	$221.89Mn
12	Hood River Capital Management LLC	0001578177	1,392,510	1.65%	▲116,991	+9.17%	$206.31Mn
13	Clear Street Group Inc.	0001881567	1,231,143	1.46%	▲1,231,143	0.00%	$182.41Mn
14	Morgan Stanley	0000895421	1,115,138	1.32%	▲387,572	+53.27%	$165.22Mn
15	Jpmorgan Chase & Co	0000019617	1,068,246	1.27%	▼42,886	-3.86%	$160.88Mn
16	FRONTIER CAPITAL MANAGEMENT CO LLC	0000351173	975,318	1.16%	▲691,172	+243.25%	$144.50Mn
17	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	648,986	0.77%	▲562,013	+646.19%	$96.15Mn
18	JANE STREET GROUP, LLC	0001595888	563,557	0.67%	▼1,715,761	-75.28%	$83.50Mn
19	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	504,202	0.60%	▲504,202	0.00%	$74.70Mn
20	VANGUARD FIDUCIARY TRUST CO	0000933478	488,922	0.58%	▲41,240	+9.21%	$72.44Mn

Showing 1 to 20 of 482 holders