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AAOI in the 13F filings

Applied Optoelectronics · CUSIP 03823U102

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2021Q2 2021
Quarter end
31 Dec 2025
the date the book describes
Filed
19 Feb 2026
latest of these filings; the earliest 5 Feb 2026
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 0 listed it in both
Shares listed
10,895,215
combined, among listed positions
Reported value
$380m
combined, at the quarter end

Among the 92 comparable managers: 15 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +6,946,586.

Managers listing AAOI in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Invesco Ltd3,512,309$122munder 0.1%Added+3,446,15019 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc2,229,757$78munder 0.1%Added+2,188,63017 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC1,682,894$59munder 0.1%Added+1,644,75712 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,366,856$48munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC551,297$19munder 0.1%Trimmed-102,47717 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP329,471$11munder 0.1%Trimmed-693,75217 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP263,616$9.2munder 0.1%Trimmed-25,75217 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC193,153$6.7munder 0.1%Added+86,52213 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC166,364$5.8munder 0.1%Added+156,54517 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)133,534$4.7munder 0.1%Added+118,39417 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp95,133$3.3munder 0.1%Trimmed-353,82417 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC87,312$3.0munder 0.1%Added+63,58413 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC63,343$2.2munder 0.1%Added+39,98613 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP60,809$2.1munder 0.1%Added+1,24513 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP59,012$2.1munder 0.1%Trimmed-16117 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC26,494$924kunder 0.1%Added+4,58317 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd24,155$842kunder 0.1%Held017 Feb 2026 (the filing on sec.gov)
Holocene Advisors LP12,484$435kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Soros Fund Management LLC11,576$404kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Millennium Management LLC10,268$358kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
GAMCO Investors Inc9,200$321kunder 0.1%Trimmed-19,8005 Feb 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP6,178$215kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (2)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q2 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

0358102016201720192020202120242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AAOI by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20141$831kn.a.n.a.
Q3 20153$18mn.a.n.a.
Q4 20151$17mn.a.n.a.
Q1 20162$12mn.a.n.a.
Q3 20162$16mn.a.n.a.
Q4 20162$21mn.a.n.a.
Q1 20174$131mn.a.n.a.
Q2 20175$94mn.a.n.a.
Q3 20172$54mn.a.n.a.
Q2 20182$123mn.a.n.a.
Q3 20181$13mn.a.n.a.
Q4 20183$3.0mn.a.n.a.
Q1 20191$1.3mn.a.n.a.
Q2 20191$1.4mn.a.n.a.
Q3 20192$6.4mn.a.n.a.
Q4 20191$613kn.a.n.a.
Q1 20201$825kn.a.n.a.
Q2 20201$1.0mn.a.n.a.
Q3 20201$907kn.a.n.a.
Q4 20202$1.1mn.a.n.a.
Q1 20212$1.1mn.a.n.a.
Q2 20212$864kn.a.n.a.
Q3 20211$597kn.a.n.a.
Q4 20232$22m11
Q1 20244$40m40
Q2 20241$3.4m11
Q3 20241$16m10
Q4 20244$117m32
Q2 20252$95m20
Q3 20251$25m11
Q4 20251$404k158
Q1 202610$572m2410
Q2 20265$512m1321

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

AAOI and NVDA →AAOI and AVGO →AAOI and MU →Choose a stock to compare with AAOI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own AAOI, latest filings →Back to the 13F Explorer →