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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
30 Sep 2021
the date the book describes
Filed
15 Nov 2021
latest of these filings; the earliest 19 Oct 2021
Managers listing it
1
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q2 2021 and Q3 2021; 1 listed it in both
Shares listed
83,085
combined, among listed positions
Reported value
$597k
combined, at the quarter end

Managers listing AAOI in Q3 2021

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2021, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

1 of 1 holder

ActionFiling
PDT Partners LLC83,085$597kunder 0.1%Trimmed-18,63315 Nov 2021 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2021 to Q3 2021, among managers that listed it in both quarters or opened it.

Increases

No increase among listed positions.

Reductions

New positions and exits

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

New (0)

No new position among listed positions.

Exited (1)

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 →