Vanguard Group Inc ownership in A59 / Applied Optoelectronics, Inc.

應用光電公司

DE ˙ DB ˙ US03823U1025

€170.76 ↓ -2.98 (-1.72%)

2026-06-05
分享價格

Security	DE:A59 / Applied Optoelectronics, Inc.
Institution	Vanguard Group Inc
Latest Disclosed Ownership	0 shares
Ownership	0.00%

2026-03-26 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Applied Optoelectronics, Inc. (DE:A59). This represents 0.0 percent ownership of the company. In their previous filing dated 2025-07-29 , Vanguard Group Inc had reported owning 4,072,660 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-03-26	2026-03-26	13G/A	4,072,660	0	-100.00	0.00	-100.00
2025-07-29	2025-07-29	13G/A	2,187,824	4,072,660	86.15	7.25	35.77
2024-11-12	2024-11-12	13G/A	2,187,824	2,187,824	0.00	5.34	0.00
2024-11-04	2024-11-04	13G	1,045,243	2,187,824	109.31	5.34	39.43
2022-02-09	2022-02-09	13G/A	1,439,208	1,045,243	-27.37	3.83	-38.82
2021-02-10	2021-02-10	13G/A	1,339,337	1,439,208	7.46	6.26	-5.86
2020-02-11	2020-02-11	13G	803,485	1,339,337	66.69	6.65	64.20
2019-02-11	2019-02-11	13G/A	1,068,538	803,485	-24.81	4.05	-26.50
2018-02-08	2018-02-08	13G		1,068,538		5.51

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-01-29	2025-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	4,982,660	358,090	7.74	173,696	44.85	0.0025
2025-11-07	2025-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	4,624,570	551,910	13.55	119,915	14.61	0.0018
2025-08-11	2025-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	4,072,660	1,293,097	46.52	104,627	145.22	0.0017
2025-05-09	2025-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	2,779,563	350,145	14.41	42,666	-52.35	0.0008
2025-02-11	2024-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	2,429,418	241,594	11.04	89,548	186.03	0.0016
2024-11-13	2024-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	2,187,824	32,846	1.52	31,308	75.25	0.0006
2024-08-13	2024-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	2,154,978	200,480	10.26	17,865	-34.05	0.0003
2024-05-10	2024-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,954,498	442,277	29.25	27,089	-7.28	0.0005
2024-03-11	2023-12-31	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	1,512,221	200,163	15.26	29,216	102.99	0.0006
2024-02-14	2023-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,512,221	200,163		29,216		0.0006
2023-12-18	2023-09-30	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	1,312,058	103,199	8.54	14,393	99.79	0.0004
2023-11-14	2023-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,312,058	103,199		14,393		0.0004
2023-08-14	2023-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,208,859	-31,200	-2.52	7,205	162.92	0.0002
2023-07-14	2023-03-31	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	1,240,059	35,600	2.96	2,741	20.39	0.0001
2023-05-15	2023-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,240,059	35,600		2,741		0.0001
2023-02-10	2022-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,204,459	615	0.05	2,276	-30.50	0.0001
2022-11-14	2022-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,203,844	-27,511	-2.23	3,275	71.65	0.0001
2022-08-12	2022-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,231,355	357,272	40.87	1,908	-40.21	0.0001
2022-05-13	2022-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	874,083	-171,160	-16.38	3,191	-40.60	0.0001
2022-02-14	2021-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,045,243	-352,196	-25.20	5,372	-46.46	0.0001
2021-11-12	2021-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,397,439	61,460	4.60	10,033	-11.34	0.0002
2021-08-13	2021-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,335,979	-169,673	-11.27	11,316	-10.10	0.0003
2021-05-14	2021-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,505,652	66,444	4.62	12,587	2.76	0.0003
2021-02-12	2020-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,439,208	-23,901	-1.63	12,249	-25.58	0.0004
2020-11-16	2020-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,463,109	-1,161	-0.08	16,460	3.41	0.0005
2020-08-14	2020-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,464,270	59,572	4.24	15,917	49.29	0.0006
2020-05-15	2020-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,404,698	65,361	4.88	10,662	-32.99	0.0005
2020-02-14	2019-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,339,337	158,472	13.42	15,911	20.09	0.0005
2019-11-14	2019-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,180,865	2	0.00	13,249	9.15	0.0005
2019-08-14	2019-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,180,863	8,917	0.76	12,138	-15.11	0.0005
2019-05-15	2019-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,171,946	368,461	45.86	14,298	15.33	0.0006
2019-02-14	2018-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	803,485	-367,233	-31.37	12,398	-57.06	0.0006
2018-12-13	2018-09-30	13F/A-2	APPLIED OPTOELECTRONICS	COM	03823U102	1,170,718	63,087	5.70	28,870	-41.95	0.0011
2018-11-23	2018-09-30	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	1,170,718	0		28,870		0.0011
2018-11-14	2018-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,170,718	63,087		28,870
2018-08-14	2018-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,107,631	10,064	0.92	49,733	80.81	0.0021
2018-05-15	2018-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,097,567	29,029	2.72	27,505	-31.94	0.0012
2018-02-14	2017-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,068,538	40,226	3.91	40,413	-39.23	0.0018
2017-11-14	2017-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	1,028,312	74,807	7.85	66,500	12.87	0.0031
2017-08-24	2017-06-30	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	953,505	317,033	49.81	58,917	64.86	0.0029
2017-08-11	2017-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	953,505	317,033		58,917
2017-05-12	2017-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	636,472	45,353	7.67	35,737	157.92	0.0018
2017-02-14	2016-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	591,119	-76	-0.01	13,856	5.52	0.0008
2016-11-14	2016-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	591,195	11,120	1.92	13,131	103.01	0.0008
2016-08-10	2016-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	580,075	23,276	4.18	6,468	-22.09	0.0004
2016-05-13	2016-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	556,799	47,389	9.30	8,302	-5.02	0.0005
2016-02-08	2015-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	509,410	45,524	9.81	8,741	0.33	0.0006
2015-11-12	2015-09-30	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	463,886	145,742	45.81	8,712	57.74	0.0004
2015-11-12	2015-09-30	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	463,886	145,742		8,712		0.0004
2015-11-12	2015-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	5,077,188			188,883
2015-08-13	2015-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	318,144	5,682	1.82	5,523	27.35	0.0004
2015-05-15	2015-03-31	13F/A-1	APPLIED OPTOELECTRONICS	COM	03823U102	312,462	21,291	7.31	4,337	32.75	0.0003
2015-05-14	2015-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	312,462			4,337
2015-02-12	2014-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	291,171	-17,313	-5.61	3,267	-34.21	0.0002
2014-11-12	2014-09-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	308,484	64,775	26.58	4,966	-12.17	0.0004
2014-08-11	2014-06-30	13F	APPLIED OPTOELECTRONICS	COM	03823U102	243,709	126,125	107.26	5,654	94.97	0.0004
2014-05-13	2014-03-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	117,584	54,688	86.95	2,900	207.20	0.0002
2014-02-12	2013-12-31	13F	APPLIED OPTOELECTRONICS	COM	03823U102	62,896	62,896		944		0.0001

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.