Wenbin Qiu: insider trades
Every open market trade Wenbin Qiu has filed with the SEC, when each filing appeared, and how the buys did against the S&P 500 once the filing was public.
Key Facts
- Wenbin Qiu is listed as Chief Executive Officer at BZUN.
- Between 2026-04-09 (9 April 2026) and 2026-06-24 (24 June 2026) Wenbin Qiu filed 28 open market buys worth $821K and 0 open market sales worth $0.
- Across 15 scored buys, Wenbin Qiu averaged -2.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 53% of them ahead of the index. That result is based on too few months of entries (3) to judge.
- Data as of 2026-09-29 (29 September 2026).
Would copying Wenbin Qiu have paid?
prices as of 2026-09-28The result. Across 15 scored buys, Wenbin Qiu averaged -2.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 53% of them ahead of the index. That result is based on too few months of entries (3) to judge.
| Days after entry | Scored buys | Avg vs S&P | Beat S&P | Entry months | t statistic | Reading |
|---|---|---|---|---|---|---|
| 30 days | 15 | -4.8% | 47% | 3 | n/a | based on too few months of entries (3) to judge |
| 90 days | 15 | -2.2% | 53% | 3 | n/a | based on too few months of entries (3) to judge |
| 180 days | 0 | n/a | n/a | n/a | n/a | too few trades to tell |
| Days after entry | Wenbin Qiu | All insiders |
|---|---|---|
| 0d | 0.00% | 0.00% |
| 7d | +2.06% | -0.65% |
| 14d | +1.08% | -1.00% |
| 21d | -0.34% | -1.53% |
| 28d | -3.78% | -1.90% |
| 35d | -5.08% | -1.95% |
| 42d | -4.73% | -2.68% |
| 49d | -2.70% | -3.73% |
| 56d | -0.79% | -4.21% |
| 63d | -0.26% | -3.93% |
| 70d | -0.34% | -3.84% |
| 77d | -1.48% | -4.42% |
| 84d | -1.57% | -3.24% |
| 91d | -3.16% | -3.26% |
| 98d | -2.23% | -3.90% |
| 105d | -0.21% | -4.80% |
| 112d | +0.99% | -5.04% |
| 119d | -4.65% | -6.45% |
| 126d | -9.77% | -7.64% |
| 133d | -7.29% | -8.05% |
| 140d | -8.37% | -8.59% |
| 147d | -9.51% | -9.81% |
| 154d | -8.56% | -9.90% |
| 161d | -3.53% | -9.69% |
| 168d | +7.39% | -9.86% |
Stocks traded
Every open market trade
as of 2026-09-29| Filed | Stock | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 24 Jun 2026 | BZUN | buy | 10,000 | $2.81 | $28.1K | +3.9% |
| 22 Jun 2026 | BZUN | buy | 10,000 | $2.83 | $28.3K | +0.3% |
| 22 Jun 2026 | BZUN | buy | 10,000 | $2.77 | $27.7K | +0.3% |
| 17 Jun 2026 | BZUN | buy | 10,000 | $2.72 | $27.2K | -2.1% |
| 17 Jun 2026 | BZUN | buy | 10,000 | $2.79 | $27.9K | -2.1% |
| 15 Jun 2026 | BZUN | buy | 10,000 | $2.72 | $27.2K | -2.0% |
| 15 Jun 2026 | BZUN | buy | 10,000 | $2.67 | $26.7K | -2.0% |
| 11 Jun 2026 | BZUN | buy | 10,000 | $2.72 | $27.2K | -2.8% |
| 11 Jun 2026 | BZUN | buy | 10,000 | $2.64 | $26.4K | -2.8% |
| 9 Jun 2026 | BZUN | buy | 10,000 | $2.65 | $26.5K | +2.6% |
| 9 Jun 2026 | BZUN | buy | 10,000 | $2.77 | $27.7K | +2.6% |
| 5 Jun 2026 | BZUN | buy | 10,000 | $2.63 | $26.3K | +2.6% |
| 5 Jun 2026 | BZUN | buy | 10,000 | $2.67 | $26.7K | +2.6% |
| 3 Jun 2026 | BZUN | buy | 10,000 | $2.69 | $26.9K | +4.3% |
| 3 Jun 2026 | BZUN | buy | 10,000 | $2.73 | $27.3K | +4.3% |
| 1 Jun 2026 | BZUN | buy | 10,000 | $2.56 | $25.6K | +4.7% |
| 1 Jun 2026 | BZUN | buy | 10,000 | $2.57 | $25.7K | +4.7% |
| 28 May 2026 | BZUN | buy | 10,000 | $2.55 | $25.5K | +14.4% |
| 28 May 2026 | BZUN | buy | 10,000 | $2.58 | $25.8K | +14.4% |
| 21 Apr 2026 | BZUN | buy | 16,000 | $3.14 | $50.2K | -19.5% |
| 17 Apr 2026 | BZUN | buy | 11,000 | $2.71 | $29.8K | -25.0% |
| 17 Apr 2026 | BZUN | buy | 17,500 | $2.84 | $49.7K | -25.0% |
| 15 Apr 2026 | BZUN | buy | 11,500 | $2.63 | $30.2K | -20.2% |
| 15 Apr 2026 | BZUN | buy | 12,100 | $2.48 | $30.0K | -20.2% |
| 13 Apr 2026 | BZUN | buy | 11,650 | $2.58 | $30.1K | -2.4% |
| 13 Apr 2026 | BZUN | buy | 12,400 | $2.43 | $30.1K | -2.4% |
| 9 Apr 2026 | BZUN | buy | 12,000 | $2.51 | $30.1K | +8.1% |
| 9 Apr 2026 | BZUN | buy | 11,600 | $2.58 | $29.9K | +8.1% |
Nothing matches that search.
Insider sales are shown but not scored, because they are often planned for tax or diversification reasons.
Related pages
Frequently asked questions
What has Wenbin Qiu bought and sold?
Between 2026-04-09 (9 April 2026) and 2026-06-24 (24 June 2026) Wenbin Qiu filed 28 open market buys worth $821K and 0 open market sales worth $0.
Did Wenbin Qiu's buys beat the market?
Across 15 scored buys, Wenbin Qiu averaged -2.2% against the S&P 500 (SPY) over the 90 days after disclosure, with 53% of them ahead of the index. That result is based on too few months of entries (3) to judge. Insider sales are not scored because they are often planned for tax or diversification reasons.
Sources: Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.