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ASX · ASE Technology Holding Co., Ltd. · Holdings

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$39.47 -0.39 (-0.98%) At close · Sep 11
Market Cap
$102.74B
Shares
2.60B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 489
Total Value: $7,138,813,058
Total Shares: 158,218,168
Showing 1–100 of 507 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 489 13F filers · Δ vs Mar 31, 2026
Top Holder
16.6%
Sep 2023 → Jun 2026 · range 10.4% – 16.6%
+2.7 pts
Top 5
37.7%
Sep 2023 → Jun 2026 · range 37.1% – 46.7%
+0.6 pts
Top 10
54.7%
Sep 2023 → Jun 2026 · range 54.2% – 64.7%
+0.5 pts
HHI
492
Sep 2023 → Jun 2026 · range 441 – 597
Broadly held+51

Quarterly Activity

vs Mar 31, 2026
New
155
Increased
152
Decreased
142
Sold Out
41
Unchanged
40
Holder count: +114
Institutional value: +106.5%
Shares held: -0.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 507
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1122411 CUSIP 00215W100 13F (30d) 153 filings 153 filers Visit website Investor relations