ZHANG KER

Track

Insider profile

Performance

Overall performance
Performance over holding periods
30 days 90 days 120 days
Average return 12% 8.2% 15.1%
Success rate 98% 68% 82%
Transactions
3 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
ZHANG KER's trades of Ambiq Micro, Inc.'s stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Transaction date
Sale
Price
498.37
Quantity 11,279 +0.9%
Value US$1,088,649
Transaction date
Sale
Price
369.18
Quantity 6,618 +24.3%
Value US$3,393,030
Transaction date
Proposed sale
Price
260.43
Quantity 52,658
Value US$65,032
Transaction date
Sale
Price
56.92
Quantity 185 -0.6%
Value US$10,530
Transaction date
Proposed sale
Price
56.92
Quantity 185
Value US$10,530
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-09-15 2026-09-11
S Sale
11,279 +0.9%
498.37
US$1,088,649 		11,279 +0.9% 498.37 US$1,088,649
2026-09-15 2026-09-11
S Sale
6,618 +24.3%
369.18
US$3,393,030 		6,618 +24.3% 369.18 US$3,393,030
2026-09-11 2026-09-11
PrS Proposed sale
52,658
260.43
US$65,032 		52,658 260.43 US$65,032
2026-09-09 2026-09-04
S Sale
185 -0.6%
56.92
US$10,530 		185 -0.6% 56.92 US$10,530
2026-09-04 2026-09-04
PrS Proposed sale
185
56.92
US$10,530 		185 56.92 US$10,530