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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 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 0 listed it in both
Shares listed
13,001,338
combined, among listed positions
Reported value
$1.1bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 24 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,106,123.

Managers listing AAOI in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Jane Street Group LLC2,279,318$193munder 0.1%Added+596,42412 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.2,117,157$179m0.11%Added+750,30115 May 2026 (the filing on sec.gov)
Invesco Ltd2,014,405$170munder 0.1%Trimmed-1,497,90412 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,732,381$147munder 0.1%Trimmed-497,37615 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC565,279$48m0.07%Newnew14 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC517,341$44munder 0.1%Newnew27 Oct 2026 (the filing on sec.gov)
Squarepoint Ops LLC495,798$42munder 0.1%Added+302,64515 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC468,870$40m0.05%Added+302,50615 May 2026 (the filing on sec.gov)
Tudor Investment Corp442,781$37m0.07%Added+347,64815 May 2026 (the filing on sec.gov)
Citadel Advisors LLC421,003$36munder 0.1%Trimmed-130,29415 May 2026 (the filing on sec.gov)
Two Sigma Investments LP341,182$29munder 0.1%Added+77,56615 May 2026 (the filing on sec.gov)
Point72 Asset Management LP265,543$22munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Wellington Management Group LLP257,708$22munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Bridgewater Associates LP223,935$19m0.08%Newnew15 May 2026 (the filing on sec.gov)
Marshall Wace LLP179,422$15munder 0.1%Added+118,61315 May 2026 (the filing on sec.gov)
Verition Fund Management LLC141,020$12m0.08%Added+53,70815 May 2026 (the filing on sec.gov)
Millennium Management LLC96,408$8.2munder 0.1%Added+86,14015 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP86,973$7.4munder 0.1%Trimmed-242,49815 May 2026 (the filing on sec.gov)
Man Group PLC74,699$6.3munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC50,000$4.2munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
AllianceBernstein LP77,441$2.7munder 0.1%Added+18,42915 May 2026 (the filing on sec.gov)
AQR Capital Management LLC30,772$2.6munder 0.1%Added+4,27815 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd29,755$2.5munder 0.1%Added+5,60018 May 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP24,437$2.1munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)17,668$1.5munder 0.1%Trimmed-115,86615 May 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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 (12)

Exited (3)

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 →