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Rong Zhou

Track

Insider profile

Currently holds a position at Amphastar Pharmaceuticals Inc

Performance

Overall performance
3.5
Performance over holding periods
3.5
30 days 90 days 120 days
Average return -4% 8.2% 15.1%
Success rate 39% 68% 82%
Transactions
15 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Executive Vice President - Production Center and President of Armstrong Pharmaceuticals, Inc. Amphastar Pharmaceuticals Inc June 1, 2015 -
Rong Zhou's trades of Amphastar Pharmaceuticals Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-12-18 2025-12-17
S Sale
15,777 +41.8%
228.45
US$4,204,275 		15,777 +41.8% 228.45 US$4,204,275
2025-11-28 2025-11-28
PrS Proposed sale
22,392
173.94
US$3,708,133 		22,392 173.94 US$3,708,133
2024-12-16 2024-12-13
S Sale
17,650 -15.5%
410.94
US$1,980,592 		17,650 -15.5% 410.94 US$1,980,592
2024-12-16 2024-12-12
S Sale
7,000 -5.6%
44.43
US$310,975 		7,000 -5.6% 44.43 US$310,975
2024-11-13 2024-11-12
S Sale
6,893 -5.5%
48.88
US$336,930 		6,893 -5.5% 48.88 US$336,930
2024-11-12 2024-11-12
PrS Proposed sale
31,680
48.10
US$1,523,808 		31,680 48.10 US$1,523,808
2024-09-17 2024-09-13
S Sale
3,000 -2.5%
48.26
US$144,784 		3,000 -2.5% 48.26 US$144,784
2024-08-27 2024-08-26
S Sale
4,000 -3.3%
48.35
US$193,400 		4,000 -3.3% 48.35 US$193,400
2024-08-26 2024-08-26
PrS Proposed sale
13,893
47.00
US$652,971 		13,893 47.00 US$652,971
2023-12-05 2023-12-04
S Sale
3,514 -3.0%
59.58
US$209,364 		3,514 -3.0% 59.58 US$209,364
2023-12-05 2023-12-01
S Sale
4,316 -3.7%
58.58
US$252,831 		4,316 -3.7% 58.58 US$252,831
2023-11-17 2023-11-17
PrS Proposed sale
7,830
57.52
US$450,382 		7,830 57.52 US$450,382
2023-06-20 2023-06-15
S Sale
5,000 -4.9%
51.79
US$258,946 		5,000 -4.9% 51.79 US$258,946
2023-06-14 2023-06-13
S Sale
5,000 -5.4%
48.24
US$241,200 		5,000 -5.4% 48.24 US$241,200
2023-05-19 2023-05-18
S Sale
10,000 -10.2%
44.21
US$442,050 		10,000 -10.2% 44.21 US$442,050
2023-05-17 2023-05-17
PrS Proposed sale
20,000
41.76
US$835,200 		20,000 41.76 US$835,200
2022-03-01 2022-02-25
PlS Planned sale
13,246 -15.9%
28.77
US$381,087 		13,246 -15.9% 28.77 US$381,087
2022-02-09 2022-02-08
PlS Planned sale
7,000 -8.4%
26.77
US$187,390 		7,000 -8.4% 26.77 US$187,390
2022-01-11 2022-01-10
PlS Planned sale
10,251 -11.8%
25.77
US$264,156 		10,251 -11.8% 25.77 US$264,156
2022-01-11 2022-01-10
PlS Planned sale
10,677 -11.0%
24.96
US$266,528 		10,677 -11.0% 24.96 US$266,528
2021-11-12 2021-11-11
PlS Planned sale
7,813 -8.6%
21.67
US$169,308 		7,813 -8.6% 21.67 US$169,308
2021-06-10 2021-06-09
S Sale
4,732 -5.2%
19.58
US$92,653 		4,732 -5.2% 19.58 US$92,653
2021-06-10 2021-06-08
S Sale
8,180 -8.2%
19.34
US$158,177 		8,180 -8.2% 19.34 US$158,177
2020-06-05 2020-06-04
S Sale
9,806 -11.0%
19.19
US$188,177 		9,806 -11.0% 19.19 US$188,177
2020-06-05 2020-06-03
S Sale
13,163 -14.1%
18.82
US$247,678 		13,163 -14.1% 18.82 US$247,678
2019-05-07 2019-05-06
PlS Planned sale
9,600 -14.4%
22.76
US$218,496 		9,600 -14.4% 22.76 US$218,496
2019-03-04 2019-03-01
PlS Planned sale
3,200 -5.8%
25.00
US$80,000 		3,200 -5.8% 25.00 US$80,000
2019-02-07 2019-02-05
PlS Planned sale
4,289 -7.6%
23.00
US$98,647 		4,289 -7.6% 23.00 US$98,647
2016-06-17 2016-06-15
PlS Planned sale
1,551 -4.0%
15.85
US$24,584 		1,551 -4.0% 15.85 US$24,584