Insider trades › Xiangmin Cui
Xiangmin Cui
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing May 26, 2026
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Using 13F.ai, list Xiangmin Cui's open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks Xiangmin Cui bought perform after the purchase compared with the S&P 500?
Using 13F.ai, are other insiders at the same companies buying or selling at the same time as Xiangmin Cui?
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Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Oct 2, 2025 | BYSI BeyondSpring, Inc. | Sale | 600 | $1.73 | $1,038 | -78.0% | Form 4 ↗ |
| Oct 1, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,601 | $1.80 | $4,682 | -79.3% | Form 4 ↗ |
| Sep 30, 2025 | BYSI BeyondSpring, Inc. | Sale | 4,464 | $1.81 | $8,080 | -80.0% | Form 4 ↗ |
| Sep 3, 2025 | BYSI BeyondSpring, Inc. | Sale | 1,270 | $1.81 | $2,299 | -84.2% | Form 4 ↗ |
| Sep 2, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,800 | $1.78 | $4,984 | -85.0% | Form 4 ↗ |
| Aug 29, 2025 | BYSI BeyondSpring, Inc. | Sale | 800 | $1.74 | $1,392 | -82.0% | Form 4 ↗ |
| Aug 15, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,900 | $2.00 | $5,800 | -87.5% | Form 4 ↗ |
| Aug 14, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,000 | $2.00 | $4,000 | -87.1% | Form 4 ↗ |
| Aug 4, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,196 | $2.18 | $4,787 | -91.7% | Form 4 ↗ |
| Jul 18, 2025 | BYSI BeyondSpring, Inc. | Sale | 900 | $2.20 | $1,980 | -92.6% | Form 4 ↗ |
| Jul 17, 2025 | BYSI BeyondSpring, Inc. | Sale | 20,572 | $2.19 | $45.1K | -92.8% | Form 4 ↗ |
| Jul 16, 2025 | BYSI BeyondSpring, Inc. | Sale | 5,396 | $2.24 | $12.1K | -93.6% | Form 4 ↗ |
| Jul 15, 2025 | BYSI BeyondSpring, Inc. | Sale | 2,152 | $2.28 | $4,907 | -95.2% | Form 4 ↗ |
| Jul 14, 2025 | BYSI BeyondSpring, Inc. | Sale | 801 | $2.29 | $1,834 | -94.5% | Form 4 ↗ |
| Jul 11, 2025 | BYSI BeyondSpring, Inc. | Sale | 246 | $2.29 | $563 | -94.9% | Form 4 ↗ |
| Jul 10, 2025 | BYSI BeyondSpring, Inc. | Sale | 768 | $2.28 | $1,751 | -93.8% | Form 4 ↗ |
| Jul 9, 2025 | BYSI BeyondSpring, Inc. | Sale | 252 | $2.27 | $572 | -94.9% | Form 4 ↗ |
| Jul 8, 2025 | BYSI BeyondSpring, Inc. | Sale | 9,059 | $2.29 | $20.7K | -94.4% | Form 4 ↗ |
| Jul 2, 2025 | BYSI BeyondSpring, Inc. | Sale | 324 | $2.42 | $784 | -95.3% | Form 4 ↗ |
| Jul 1, 2025 | BYSI BeyondSpring, Inc. | Sale | 600 | $2.43 | $1,458 | -97.3% | Form 4 ↗ |
| Jun 23, 2025 | BYSI BeyondSpring, Inc. | Sale | 1,700 | $3.09 | $5,253 | -103.8% | Form 4 ↗ |
| Jun 20, 2025 | BYSI BeyondSpring, Inc. | Sale | 60,000 | $3.11 | $186.6K | -108.0% | Form 4 ↗ |
| Jun 20, 2025 | BYSI BeyondSpring, Inc. | Sale | 225,217 | $3.16 | $711.7K | -108.0% | Form 4 ↗ |
| Jun 18, 2025 | BYSI BeyondSpring, Inc. | Sale | 59,253 | $3.17 | $187.8K | -106.9% | Form 4 ↗ |
| Jun 17, 2025 | BYSI BeyondSpring, Inc. | Sale | 5,000 | $3.23 | $16.1K | -108.6% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.