Latest Period
Q1 2026
Security Snapshot
APPLIED OPTOELECTRONICS, INC. - Common Stock, par value $0.001 (AAOI) Institutional Ownership
CUSIP: 03823U102
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
368
Shares (Excl. Options)
52,935,206
Price
$84.59
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- Security type / class
- Equity / Common Stock, par value $0.001
- Symbol
- AAOI on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 52,935,206
- Total 13F value
- $4,479,145,948
- Portfolio coverage rank
- 0.01%
- Share change
- +5,585,378
- Value change
- +$593,686,625
- Number of holders
- 368
- Shares outstanding
- 80,112,357
- SEC-reported price per share
- $169.02
- Insider filing price
- $169.02
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AAOI - APPLIED OPTOELECTRONICS, INC. - Common Stock, par value $0.001 is tracked under CUSIP 03823U102.
- 368 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 217 to 368 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,665,289,017 to $4,479,145,948.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 368 institutions filings for Q1 2026.
Security key
03823U102
Latest holder period
Q1 2026
13F holders
368
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
AAOI full holder history
APPLIED OPTOELECTRONICS, INC. SEC filings
APPLIED OPTOELECTRONICS, INC. company facts
APPLIED OPTOELECTRONICS, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 03823U102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
AAOI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Marex Securities Products Inc. | 5.6% | $675,635,575 | 4,486,292 | Marex Securities Products Inc. | 08 May 2026 | |||
| JANE STREET GROUP, LLC | 5.3% | $238,131,414 | 4,097,237 | JANE STREET GROUP, LLC | 17 Mar 2026 | |||
| JPMORGAN CHASE & CO | 4.4% | -39% | $72,626,870 | -$49,989,643 | 2,800,882 | -41% | JPMORGAN CHASE & CO. | 31 Oct 2025 |
| D. E. SHAW & CO, L.P. | 4.2% | -18% | $28,708,300 | -$3,365,160 | 2,239,337 | -10% | D. E. Shaw & Co., L.P. | 31 Mar 2025 |
| Invesco Ltd. | 2.7% | -48% | $303,369,393 | -$225,584,342 | 2,014,405 | -43% | Invesco Ltd. | 31 Mar 2026 |
As of 31 Mar 2026, 368 institutional investors reported holding 52,935,206 shares of APPLIED OPTOELECTRONICS, INC. - Common Stock, par value $0.001 (AAOI). This represents 66% of the company’s total 80,112,357 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
47%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9% | 7,192,329 | +36% | 0.01% | $608,399,109 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.8% | 3,061,522 | 0% | 0.01% | $258,974,146 |
| OBERWEIS ASSET MANAGEMENT INC/ | 2.9% | 2,349,969 | +15% | 5.9% | $198,783,878 |
| JANE STREET GROUP, LLC | 2.8% | 2,279,318 | +35% | 0.21% | $192,807,509 |
| D. E. Shaw & Co., Inc. | 2.6% | 2,117,157 | +55% | 0.14% | $179,090,311 |
| Invesco Ltd. | 2.5% | 2,014,405 | -43% | 0.03% | $170,398,519 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.2% | 1,801,883 | 0% | 0.01% | $152,421,283 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.2% | 1,732,381 | -22% | 0.02% | $146,543,000 |
| STATE STREET CORP | 2.1% | 1,644,293 | +2.4% | 0% | $139,090,745 |
| GEODE CAPITAL MANAGEMENT, LLC | 2% | 1,621,305 | +7.2% | 0.01% | $137,173,633 |
| Hood River Capital Management LLC | 1.6% | 1,275,519 | -0.01% | 1.1% | $107,896,152 |
| Value Aligned Research Advisors, LLC | 1.6% | 1,267,938 | 1.3% | $107,254,875 | |
| JPMORGAN CHASE & CO | 1.4% | 1,111,132 | +1903% | 0.01% | $94,657,335 |
| GOLDMAN SACHS GROUP INC | 1.4% | 1,084,764 | +12% | 0.01% | $91,760,188 |
| UBS Group AG | 1.2% | 970,744 | +2.1% | 0.01% | $82,115,234 |
| RAYMOND JAMES FINANCIAL INC | 0.92% | 733,696 | +93% | 0.02% | $62,187,836 |
| MORGAN STANLEY | 0.91% | 727,566 | -57% | 0% | $61,544,867 |
| T. Rowe Price Investment Management, Inc. | 0.8% | 643,145 | 0.04% | $54,404,000 | |
| Driehaus Capital Management LLC | 0.79% | 632,337 | +25% | 0.39% | $53,489,387 |
| NORTHERN TRUST CORP | 0.73% | 583,494 | +11% | 0.01% | $49,357,757 |
| RENAISSANCE TECHNOLOGIES LLC | 0.71% | 565,279 | 0.07% | $47,816,951 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.66% | 532,228 | +0.74% | 0.01% | $45,021,167 |
| NEUBERGER BERMAN GROUP LLC | 0.65% | 517,341 | 0.03% | $44,039,327 | |
| Squarepoint Ops LLC | 0.62% | 495,798 | +157% | 0.09% | $41,939,553 |
| Balyasny Asset Management L.P. | 0.59% | 468,870 | +182% | 0.08% | $39,661,713 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 52,935,206 | $4,479,145,948 | +$593,686,625 | $84.59 | 368 |
| 2025 Q4 | 47,738,652 | $1,665,289,017 | +$315,119,867 | $34.86 | 217 |
| 2025 Q3 | 39,723,514 | $1,030,593,062 | +$177,256,833 | $25.93 | 177 |
| 2025 Q2 | 33,000,153 | $848,474,140 | +$103,904,079 | $25.69 | 144 |
| 2025 Q1 | 31,102,931 | $477,543,294 | -$122,043,275 | $15.35 | 143 |
| 2024 Q4 | 30,700,536 | $1,131,273,628 | +$195,252,486 | $36.86 | 155 |
| 2024 Q3 | 29,469,796 | $421,680,013 | +$39,236,735 | $14.31 | 140 |
| 2024 Q2 | 29,151,480 | $241,668,304 | -$21,542,131 | $8.29 | 130 |
| 2024 Q1 | 28,634,139 | $396,942,786 | +$62,150,365 | $13.86 | 116 |
| 2023 Q4 | 23,576,575 | $455,501,973 | +$163,483,529 | $19.32 | 102 |
| 2023 Q3 | 15,651,957 | $171,681,398 | +$44,314,739 | $10.97 | 75 |
| 2023 Q2 | 12,020,425 | $71,620,247 | +$20,792,306 | $5.96 | 53 |
| 2023 Q1 | 8,775,799 | $19,393,623 | -$668,465 | $2.21 | 51 |
| 2022 Q4 | 9,269,589 | $17,516,982 | -$577,856 | $1.89 | 56 |
| 2022 Q3 | 9,275,493 | $25,232,632 | -$622,676 | $2.72 | 54 |
| 2022 Q2 | 9,482,231 | $14,692,930 | -$3,328,231 | $1.55 | 49 |
| 2022 Q1 | 9,751,108 | $35,590,365 | -$4,578,543 | $3.65 | 62 |
| 2021 Q4 | 10,845,778 | $55,744,440 | -$17,461,679 | $5.14 | 77 |
| 2021 Q3 | 13,458,042 | $96,653,821 | +$458,892 | $7.18 | 93 |
| 2021 Q2 | 13,193,286 | $111,739,298 | -$6,453,613 | $8.47 | 99 |
| 2021 Q1 | 14,077,618 | $117,673,376 | +$22,691,495 | $8.36 | 102 |
| 2020 Q4 | 11,204,260 | $95,352,448 | -$568,601 | $8.51 | 95 |
| 2020 Q3 | 10,952,225 | $123,188,734 | -$9,980,045 | $11.25 | 100 |
| 2020 Q2 | 11,831,945 | $128,521,804 | +$2,313,188 | $10.87 | 103 |
| 2020 Q1 | 11,966,616 | $90,849,256 | -$5,634,099 | $7.59 | 95 |