Insider trades › Kevin Tang
Kevin Tang
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 Nov 10, 2026
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Using 13F.ai, list Kevin Tang'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 Kevin Tang 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 Kevin Tang?
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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.
| BOLD Boundless Bio, Inc. | 10% owner | Nov 10, 2026 |
| NNDM Nano Dimension Ltd. | 10% owner | Oct 26, 2026 |
| FULC Fulcrum Therapeutics, Inc. | 10% owner | Jul 20, 2026 |
| AUPH Aurinia Pharmaceuticals Inc | Chief Executive Officer, Director, 10% owner | Jun 2, 2026 |
| OMIC Singular Genomics Systems, Inc. | 10% owner | Feb 27, 2025 |
Roles come from the filings themselves and can change over time.
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 | ||||||
|---|---|---|---|---|---|---|---|
| Nov 10, 2026 | BOLD Boundless Bio, Inc. | Buy | 249 | $2.40 | $598 | +1.4% | Form 4 ↗ |
| Nov 6, 2026 | BOLD Boundless Bio, Inc. | Buy | 1,700 | $2.40 | $4,080 | -1.0% | Form 4 ↗ |
| Nov 5, 2026 | BOLD Boundless Bio, Inc. | Buy | 8,390 | $2.40 | $20.1K | +0.8% | Form 4 ↗ |
| Nov 4, 2026 | BOLD Boundless Bio, Inc. | Buy | 517 | $2.40 | $1,241 | +5.8% | Form 4 ↗ |
| Nov 3, 2026 | BOLD Boundless Bio, Inc. | Buy | 2,255 | $2.40 | $5,412 | +5.0% | Form 4 ↗ |
| Oct 27, 2026 | BOLD Boundless Bio, Inc. | Buy | 10,707 | $2.40 | $25.7K | +5.7% | Form 4 ↗ |
| Oct 26, 2026 | BOLD Boundless Bio, Inc. | Buy | 9,606 | $2.38 | $22.9K | +5.2% | Form 4 ↗ |
| Oct 23, 2026 | BOLD Boundless Bio, Inc. | Buy | 6,234 | $2.38 | $14.8K | +6.7% | Form 4 ↗ |
| Oct 22, 2026 | BOLD Boundless Bio, Inc. | Buy | 5,800 | $2.40 | $13.9K | +3.7% | Form 4 ↗ |
| Oct 20, 2026 | BOLD Boundless Bio, Inc. | Buy | 220 | $2.37 | $521 | +4.8% | Form 4 ↗ |
| Oct 19, 2026 | BOLD Boundless Bio, Inc. | Buy | 18,279 | $2.33 | $42.6K | +9.8% | Form 4 ↗ |
| Oct 19, 2026 | BOLD Boundless Bio, Inc. | Buy | 12,790 | $2.34 | $29.9K | +9.8% | Form 4 ↗ |
| Oct 16, 2026 | BOLD Boundless Bio, Inc. | Buy | 118,185 | $2.34 | $276.6K | +8.0% | Form 4 ↗ |
| Jul 21, 2026 | BOLD Boundless Bio, Inc. | Buy | 2,975 | $2.44 | $7,259 | -0.0% | Form 4 ↗ |
| Jul 20, 2026 | BOLD Boundless Bio, Inc. | Buy | 1,623 | $2.44 | $3,960 | +0.8% | Form 4 ↗ |
| Jul 17, 2026 | BOLD Boundless Bio, Inc. | Buy | 265 | $2.44 | $647 | -0.7% | Form 4 ↗ |
| Jul 17, 2026 | FULC Fulcrum Therapeutics, Inc. | Buy | 50,945 | $3.52 | $179.3K | +1.8% | Form 4 ↗ |
| Jul 16, 2026 | FULC Fulcrum Therapeutics, Inc. | Buy | 116,671 | $3.56 | $415.3K | +7.2% | Form 4 ↗ |
| Jul 16, 2026 | BOLD Boundless Bio, Inc. | Buy | 18,491 | $2.44 | $45.1K | -0.1% | Form 4 ↗ |
| Jul 15, 2026 | BOLD Boundless Bio, Inc. | Buy | 1,600 | $2.44 | $3,904 | +1.3% | Form 4 ↗ |
| Jul 14, 2026 | BOLD Boundless Bio, Inc. | Buy | 43,878 | $2.43 | $106.6K | +1.3% | Form 4 ↗ |
| Jul 13, 2026 | BOLD Boundless Bio, Inc. | Buy | 48,211 | $2.42 | $116.7K | +1.8% | Form 4 ↗ |
| Jul 10, 2026 | BOLD Boundless Bio, Inc. | Buy | 43,367 | $2.43 | $105.4K | +3.8% | Form 4 ↗ |
| Jul 9, 2026 | BOLD Boundless Bio, Inc. | Buy | 7 | $2.48 | $17.36 | -0.8% | Form 4 ↗ |
| Jul 8, 2026 | BOLD Boundless Bio, Inc. | Buy | 14,338 | $2.46 | $35.3K | +0.8% | Form 4 ↗ |
| Jul 7, 2026 | BOLD Boundless Bio, Inc. | Buy | 15,810 | $2.48 | $39.2K | -0.9% | Form 4 ↗ |
| Jul 6, 2026 | BOLD Boundless Bio, Inc. | Buy | 27,062 | $2.49 | $67.4K | -0.4% | Form 4 ↗ |
| Jul 2, 2026 | BOLD Boundless Bio, Inc. | Buy | 9,821 | $2.49 | $24.5K | -1.3% | Form 4 ↗ |
| Jul 1, 2026 | BOLD Boundless Bio, Inc. | Buy | 71,612 | $2.49 | $178.3K | -0.3% | Form 4 ↗ |
| Jun 30, 2026 | BOLD Boundless Bio, Inc. | Buy | 100 | $2.50 | $250 | -1.0% | Form 4 ↗ |
| Jun 30, 2026 | BOLD Boundless Bio, Inc. | Buy | 25,930 | $2.54 | $65.9K | -1.0% | Form 4 ↗ |
| Jun 29, 2026 | BOLD Boundless Bio, Inc. | Buy | 777 | $2.48 | $1,927 | +0.2% | Form 4 ↗ |
| Jun 29, 2026 | BOLD Boundless Bio, Inc. | Buy | 63,985 | $2.47 | $158.0K | +0.2% | Form 4 ↗ |
| Jun 26, 2026 | BOLD Boundless Bio, Inc. | Buy | 75,047 | $2.55 | $191.4K | -5.8% | Form 4 ↗ |
| Jun 26, 2026 | BOLD Boundless Bio, Inc. | Buy | 134 | $2.54 | $340 | -5.8% | Form 4 ↗ |
| Jun 25, 2026 | BOLD Boundless Bio, Inc. | Buy | 145,880 | $2.48 | $361.8K | -3.1% | Form 4 ↗ |
| Jun 25, 2026 | BOLD Boundless Bio, Inc. | Buy | 510 | $2.56 | $1,306 | -3.1% | Form 4 ↗ |
| Jun 2, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 206,005 | $15.28 | $3.1M | +2.9% | Form 4 ↗ |
| Jun 1, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 343,521 | $15.28 | $5.2M | +3.3% | Form 4 ↗ |
| Jun 1, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 99 | $15.34 | $1,519 | +3.3% | Form 4 ↗ |
| May 29, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 2,299 | $15.35 | $35.3K | +2.9% | Form 4 ↗ |
| May 29, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 262,682 | $15.31 | $4.0M | +2.9% | Form 4 ↗ |
| Mar 3, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 184,208 | $14.22 | $2.6M | +0.3% | Form 4 ↗ |
| Mar 2, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 83,561 | $14.33 | $1.2M | +0.8% | Form 4 ↗ |
| Mar 2, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 115,792 | $14.21 | $1.6M | +0.8% | Form 4 ↗ |
| Feb 27, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 214,839 | $14.12 | $3.0M | +1.0% | Form 4 ↗ |
| Feb 27, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 1,600 | $14.38 | $23.0K | +1.0% | Form 4 ↗ |
| Feb 27, 2026 | AUPH Aurinia Pharmaceuticals Inc | Buy | 300,000 | $13.90 | $4.2M | +1.0% | Form 4 ↗ |
| Aug 5, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 200,000 | $11.68 | $2.3M | +14.3% | Form 4 ↗ |
| Aug 4, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 100,000 | $11.34 | $1.1M | +17.9% | Form 4 ↗ |
| Aug 1, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 1.00M | $10.12 | $10.1M | +28.6% | Form 4 ↗ |
| Mar 4, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 100,000 | $8.09 | $809.0K | +63.9% | Form 4 ↗ |
| Mar 4, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 148,038 | $8.00 | $1.2M | +63.9% | Form 4 ↗ |
| Mar 4, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 500,000 | $7.92 | $4.0M | +63.9% | Form 4 ↗ |
| Mar 3, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 100,720 | $7.97 | $802.7K | +67.9% | Form 4 ↗ |
| Mar 3, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 351,962 | $8.02 | $2.8M | +67.9% | Form 4 ↗ |
| Feb 28, 2025 | AUPH Aurinia Pharmaceuticals Inc | Buy | 399,280 | $7.85 | $3.1M | +70.9% | Form 4 ↗ |
| Dec 9, 2024 | AUPH Aurinia Pharmaceuticals Inc | Buy | 500,000 | $9.09 | $4.5M | +47.5% | Form 4 ↗ |
| Dec 6, 2024 | AUPH Aurinia Pharmaceuticals Inc | Buy | 400,000 | $9.01 | $3.6M | +52.0% | Form 4 ↗ |
| Dec 5, 2024 | AUPH Aurinia Pharmaceuticals Inc | Buy | 300,000 | $8.91 | $2.7M | +52.8% | 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.