L3VLUP
ProSign in

AMKR in the 13F filings

Amkor Technology Inc · CUSIP 031652100

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2023
the date the book describes
Filed
14 Feb 2024
latest of these filings; the earliest 8 Feb 2024
Managers listing it
8
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q3 2023 and Q4 2023; 7 listed it in both
Shares listed
8,801,734
combined, among listed positions
Reported value
$293m
combined, at the quarter end

Among the 93 comparable managers: 5 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing AMKR in Q4 2023

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

8 of 8 holders

ActionFiling
AllianceBernstein LP4,431,217$147m0.06%Added+539,40214 Feb 2024 (the filing on sec.gov)
AQR Capital Management LLC2,423,369$81m0.15%Added+483,78614 Feb 2024 (the filing on sec.gov)
Marshall Wace LLP826,903$28munder 0.1%Trimmed-203,76114 Feb 2024 (the filing on sec.gov)
First Eagle Investment Management LLC417,599$14munder 0.1%Added+14,8508 Feb 2024 (the filing on sec.gov)
Voloridge Investment Management LLC394,529$13m0.05%Added+2,22914 Feb 2024 (the filing on sec.gov)
Tudor Investment Corp203,178$6.8m0.05%Addedn.a.14 Feb 2024 (the filing on sec.gov)
Bridgewater Associates LP90,958$3.0munder 0.1%Trimmed-27,04414 Feb 2024 (the filing on sec.gov)
Winton Group Ltd13,981$465kunder 0.1%Trimmed-3,47312 Feb 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2023 to Q4 2023, 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 (0)

No new position among listed positions.

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.
5 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AMKR by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$521kn.a.n.a.
Q4 20131$852kn.a.n.a.
Q1 20141$8.0mn.a.n.a.
Q2 20144$150mn.a.n.a.
Q3 20144$89mn.a.n.a.
Q4 20143$52mn.a.n.a.
Q1 20152$57mn.a.n.a.
Q2 20152$37mn.a.n.a.
Q3 20152$12mn.a.n.a.
Q4 20151$5.3mn.a.n.a.
Q1 20161$3.7mn.a.n.a.
Q3 20161$38mn.a.n.a.
Q4 20164$79mn.a.n.a.
Q1 20176$109mn.a.n.a.
Q2 20172$33mn.a.n.a.
Q3 20172$31mn.a.n.a.
Q4 20171$388kn.a.n.a.
Q1 20182$732kn.a.n.a.
Q4 20182$952kn.a.n.a.
Q1 20191$18mn.a.n.a.
Q2 20191$315kn.a.n.a.
Q3 20192$18mn.a.n.a.
Q4 20195$42mn.a.n.a.
Q1 20202$17mn.a.n.a.
Q2 20203$39mn.a.n.a.
Q3 20204$31mn.a.n.a.
Q4 20203$46mn.a.n.a.
Q1 20212$42mn.a.n.a.
Q2 20212$144kn.a.n.a.
Q3 20214$53mn.a.n.a.
Q4 20214$37mn.a.n.a.
Q1 20224$53mn.a.n.a.
Q2 20224$53mn.a.n.a.
Q3 20223$38mn.a.n.a.
Q4 20224$61mn.a.n.a.
Q1 20236$100mn.a.n.a.
Q2 20238$210mn.a.n.a.
Q3 202311$195mn.a.n.a.
Q4 20238$293m56
Q1 202410$268m82
Q2 20249$345m65
Q3 20245$217m50
Q4 20245$179m23
Q1 20257$80m62
Q2 20254$100m33
Q3 20255$174m32
Q4 20256$393m2015
Q1 202612$570m2216
Q2 202610$747m1425

Compare with…

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

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

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 AMKR, latest filings →Back to the 13F Explorer →