AAOI

APPLIED OPTOELECTRONICS, INC.

Semiconductors & Related DevicesNasdaqAccelerated filer

Total Trades

60

Buys

7

Sells

51

Largest Trade

N/A

Insiders

10

Institutional Funds

172

Inst. Value

$1M+

Activist Filings

17

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Chang Hung-Lun (Fred)*** See RemarksSELL$100K–$500K32K$12.07Aug 10, 2023
Murry Stefan J.CFOSELL$1K–$15K3K$2.96Feb 21, 2023
Murry Stefan J.CFOSELL$1K–$15K5K$2.55Feb 3, 2023
Murry Stefan J.CFOSELL$1K–$15K4K$2.51Jan 19, 2023
Murry Stefan J.CFOSELL$15K–$50K15K$2.17Dec 15, 2022
Kuo David CGeneral Counsel an…SELL$15K–$50K19K$2.18Dec 15, 2022
Kuo David CGeneral Counsel an…SELL$15K–$50K19K$2.16Dec 12, 2022
Chang Hung-Lun (Fred)*** See RemarksSELL$100K–$500K50K$2.15Nov 14, 2022
Lin Chih-Hsiang (Thompson)President and CEOBUY$50K–$100K44K$2.20Nov 8, 2022
Murry Stefan J.CFOSELL$1K–$15K3K$2.83Oct 19, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Invesco Ltd.

SC 13G · Feb 12, 2026

5.1%

3.5M shares

The Vanguard Group

SC 13G/A · Jul 29, 2025

7.3%

4.1M shares

D. E. Shaw & Co., L.P.

SC 13G/A · May 15, 2025

4.2%

2.2M shares

D. E. Shaw & Co., L.P.

SC 13G · Jan 15, 2025

5.1%

2.5M shares

The Vanguard Group

SC 13G/A · Nov 12, 2024

5.3%

2.2M shares

BlackRock, Inc.

SC 13G · Nov 8, 2024

7.1%

3.0M shares

The Vanguard Group

SC 13G · Nov 4, 2024

5.3%

2.2M shares

BlackRock, Inc.

SC 13G · Oct 22, 2024

7.1%

3.0M shares

DRIEHAUS CAPITAL MANAGEMENT LLC

SC 13G/A · Jun 10, 2024

2.2%

844K shares

Citadel Advisors LLC

SC 13G/A · Feb 14, 2024

0.0%

6 shares

DRIEHAUS CAPITAL MANAGEMENT LLC

SC 13G · Feb 14, 2024

7.8%

2.8M shares

2.6%

846K shares

5.7%

1.8M shares

2.7%

789K shares

Citadel Advisors LLC

SC 13G/A · Feb 14, 2023

5.7%

6 shares

5.9%

1.7M shares

Citadel Advisors LLC

SC 13G/A · Feb 14, 2022

6.5%

6 shares

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