CHEN TIEN-SZU (GM, ASE Inc. Chung-Li Branch) sold 19.1% of their position (530K shares) of ASE TECHNOLOGY HOLDING CO., LTD. on the open market
Open‑market sale worth $247.14M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 4 sales
Filed: 4/22/2026ACC: 0000950103-26-006018
Officer· GM, ASE Inc. Chung-Li Branch
Since Mar 2026
-530K
Net shares
Net seller
$247.14M
Total sold
4
Open market trades
0B · 4S
4
Total transactions
530K disposed
Non-Derivative Transactions4
Ordinary Shares
Direct
Shares
−328K
Price / share
$465.11
Trade value
$152.55M
% of position
11.8%
4/20/2026
2.78M→2.45M
Ordinary Shares
Direct
Shares
−72K
Price / share
$466.00
Trade value
$33.55M
% of position
2.9%
4/20/2026
2.45M→2.38M
Ordinary Shares
Direct
Shares
−50K
Price / share
$467.00
Trade value
$23.35M
% of position
2.1%
4/20/2026
2.38M→2.33M
Ordinary Shares
Direct
Shares
−80K
Price / share
$471.00
Trade value
$37.68M
% of position
3.4%
4/20/2026
2.33M→2.25M
Total
Net shares
−530K
Net value
-$247.14M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Ordinary Shares Direct | 4/20/2026 | S · Sale | −328K | $465.11 | $152.55M | 11.8% | 2.78M | 2.45M |
| Ordinary Shares Direct | 4/20/2026 | S · Sale | −72K | $466.00 | $33.55M | 2.9% | 2.45M | 2.38M |
| Ordinary Shares Direct | 4/20/2026 | S · Sale | −50K | $467.00 | $23.35M | 2.1% | 2.38M | 2.33M |
| Ordinary Shares Direct | 4/20/2026 | S · Sale | −80K | $471.00 | $37.68M | 3.4% | 2.33M | 2.25M |
| Total | −530K | -$247.14M | ||||||
Derivative Transactions0
No derivative transactions reported