Applied Optoelectronics, Inc. (AAOI) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

64,057,143Shares Outstanding

58,640Shares held by institutions

$2,574,882Value of institutional holdings

69.35%Institutional ownership %

21.27%Shares Changed QoQ

208No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Applied Optoelectronics, Inc. (NASDAQ:AAOI) includes 208 filers as of the latest reporting cycle ending December 2025.

The collective stake of institutional investors in Applied Optoelectronics moved to 69.4% in December 2025, a shift up from the 65.7% reported for September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 21.27%, with a year-over-year an increase of 33.33% in the count of filers.
During the quarter, 150 institutions bought more Applied Optoelectronics shares, 45 sold shares, and 13 of the 208 total investors held their position steady.
Collectively, institutional investors increased their stake in Applied Optoelectronics to 44.43Mn shares as of December 2025, a change that is up by 7.79Mn shares quarter on quarter and up 12.44Mn shares year over year.
BlackRock, Inc.'s holding of 5.31Mn shares as of December 31, 2025 makes it the primary institutional investor in Applied Optoelectronics, owning 8.28% of the stock.
Among the most significant buyers of Applied Optoelectronics during December 2025 were JANE STREET GROUP, LLC (2.60Mn), D. E. Shaw & Co., Inc. (1.37Mn), MORGAN STANLEY (1.04Mn), BNP PARIBAS FINANCIAL MARKETS (944.19K), HAWK RIDGE CAPITAL MANAGEMENT LP (875.90K).
Leading sellers of Applied Optoelectronics stock in December 2025 included CITIGROUP INC (1.15Mn), GOLDMAN SACHS GROUP INC (695.94K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (693.75K), AMERIPRISE FINANCIAL INC (356.74K), TUDOR INVESTMENT CORP ET AL (353.82K).
The top 10 institutional holders of Applied Optoelectronics for the quarter ending December 2025 included BlackRock, Inc. (5.31Mn), VANGUARD GROUP INC (4.98Mn), JANE STREET GROUP, LLC (4.50Mn), OBERWEIS ASSET MANAGEMENT INC/ (2.04Mn), HAWK RIDGE CAPITAL MANAGEMENT LP (1.70Mn), MORGAN STANLEY (1.70Mn), STATE STREET CORP (1.61Mn), GEODE CAPITAL MANAGEMENT, LLC (1.51Mn), D. E. Shaw & Co., Inc. (1.37Mn), Hood River Capital Management LLC (1.28Mn).

208 Institutional Holders

58,640 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	5,306,432	454,581	9.37%	$184,982,220.00
VANGUARD GROUP INC	31 Dec, 2025	4,982,660	358,090	7.74%	$173,695,528.00
JANE STREET GROUP, LLC	31 Dec, 2025	4,500,394	2,602,657	137.15%	$156,883,734.00
OBERWEIS ASSET MANAGEMENT INC/	31 Dec, 2025	2,039,641	151,600	8.03%	$71,101,885.00
HAWK RIDGE CAPITAL MANAGEMENT LP	31 Dec, 2025	1,700,900	875,903	106.17%	$59,293,374.00
MORGAN STANLEY	31 Dec, 2025	1,699,855	1,038,775	157.13%	$59,256,962.00
STATE STREET CORP	31 Dec, 2025	1,606,236	165,641	11.50%	$55,993,387.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,512,902	146,639	10.73%	$52,750,249.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	1,366,856	1,366,856	0.00%	$47,648,600.00
Hood River Capital Management LLC	31 Dec, 2025	1,275,621	-300,002	-19.04%	$44,468,148.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	967,305	-695,936	-41.84%	$33,720,252.00
BNP PARIBAS FINANCIAL MARKETS	31 Dec, 2025	955,287	944,190	8,508.52%	$33,301,305.00
UBS Group AG	31 Dec, 2025	951,065	-40,426	-4.08%	$33,154,126.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	773,948	-62,905	-7.52%	$26,979,827.00
Artemis Investment Management LLP	31 Dec, 2025	772,324	772,324	0.00%	$26,923,215.00
EMERALD ADVISERS, LLC	31 Dec, 2025	670,577	60,932	9.99%	$23,376,314.00
CITADEL ADVISORS LLC	31 Dec, 2025	551,297	-102,477	-15.67%	$19,218,213.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	528,343	46,973	9.76%	$18,418,037.00
NORTHERN TRUST CORP	31 Dec, 2025	526,928	19,167	3.77%	$18,368,710.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	507,473	132,177	35.22%	$17,690,509.00

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