Kevin Tang bought $350K of Boundless Bio stock
By AlphaYouPublished Form 4
TANG KEVIN; TANG CAPITAL MANAGEMENT LLC
Reporting filer
Kevin Tang reported buying 149,474 shares of Boundless Bio, Inc. for about $350K ($2.34 a share on average). Form 4 filed Oct 20, 2026 lists 4 entries.
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- Disclosed
- Oct 20, 2026
Reported details
4 entries| Security | Owner | Date | Code | Action | Quantity | Price | Following holdings | Reporting delay | Filed terms and references |
|---|---|---|---|---|---|---|---|---|---|
| Common Stock | TANG KEVIN; TANG CAPITAL MANAGEMENT LLC | 2026-10-16 | P | Purchase | 118185 | 2.34 | 2,958,820 | 4 days | Filed terms
|
| Common Stock | TANG KEVIN; TANG CAPITAL MANAGEMENT LLC | 2026-10-19 | P | Purchase | 12790 | 2.34 | 2,971,610 | 1 day | Filed terms
|
| Common Stock | TANG KEVIN; TANG CAPITAL MANAGEMENT LLC | 2026-10-19 | P | Purchase | 18279 | 2.33 | 2,989,889 | 1 day | Filed terms
|
| Common Stock | TANG KEVIN; TANG CAPITAL MANAGEMENT LLC | 2026-10-20 | P | Purchase | 220 | 2.37 | 2,990,109 | 0 days | Filed terms
|
Common Stock
- Owner
- TANG KEVIN; TANG CAPITAL MANAGEMENT LLC
- Date
- 2026-10-16
- Code
- P
- Action
- Purchase
- Quantity
- 118185
- Price
- 2.34
- Following holdings
- 2,958,820
- Reporting delay
- 4 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-16
- transaction Form Type: 4
- transaction Code: P
- equity Swap Involved: 0
- id: F1
- transaction Shares: 118185
- transaction Price Per Share: 2.34
- id: F2
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 2958820
- direct Or Indirect Ownership: I
- nature Of Ownership: See Footnote
- id: F3
Common Stock
- Owner
- TANG KEVIN; TANG CAPITAL MANAGEMENT LLC
- Date
- 2026-10-19
- Code
- P
- Action
- Purchase
- Quantity
- 12790
- Price
- 2.34
- Following holdings
- 2,971,610
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-19
- transaction Form Type: 4
- transaction Code: P
- equity Swap Involved: 0
- id: F1
- transaction Shares: 12790
- transaction Price Per Share: 2.34
- id: F4
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 2971610
- direct Or Indirect Ownership: I
- nature Of Ownership: See Footnote
- id: F3
Common Stock
- Owner
- TANG KEVIN; TANG CAPITAL MANAGEMENT LLC
- Date
- 2026-10-19
- Code
- P
- Action
- Purchase
- Quantity
- 18279
- Price
- 2.33
- Following holdings
- 2,989,889
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-19
- transaction Form Type: 4
- transaction Code: P
- equity Swap Involved: 0
- id: F1
- transaction Shares: 18279
- transaction Price Per Share: 2.33
- id: F5
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 2989889
- direct Or Indirect Ownership: I
- nature Of Ownership: See Footnote
- id: F3
Common Stock
- Owner
- TANG KEVIN; TANG CAPITAL MANAGEMENT LLC
- Date
- 2026-10-20
- Code
- P
- Action
- Purchase
- Quantity
- 220
- Price
- 2.37
- Following holdings
- 2,990,109
- Reporting delay
- 0 days
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-20
- transaction Form Type: 4
- transaction Code: P
- equity Swap Involved: 0
- transaction Shares: 220
- transaction Price Per Share: 2.37
- id: F6
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 2990109
- direct Or Indirect Ownership: I
- nature Of Ownership: See Footnote
- id: F3
Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.
Filing context
- Quantities and prices are shown in the units filed. No trade value is inferred from their product.
- TANG KEVIN: 10% owner.
- TANG CAPITAL MANAGEMENT LLC: 10% owner.
- F1: The Reporting Persons have delivered to the Issuer the full amount of the disgorgeable profit arising the purchases reported herein, in the amount of $1,723.10.
- F2: The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.31 to $2.35. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the SEC staff, upon request, all information regarding the number of shares purchased at each price within the range set forth in Footnotes 2 and 4 through 6.
- F3: Tang Capital Partners, LP ("TCP") beneficially owns 688,494 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 937,213 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 688,487 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 675,915 shares. Kevin Tang is the sole manager of Tang Capital Management, LLC, which is the general partner of TCP and TCPI. Kevin Tang is the sole director and Chief Executive Officer of TCP III and TCP IV, which are indirectly wholly owned by TCP. Mr. Tang has a pecuniary interest in the shares beneficially held by TCP, TCPI, TCP III and TCP IV.
- F4: These shares were purchased in multiple transactions at prices ranging from $2.31 to $2.35.
- F5: These shares were purchased in multiple transactions at prices ranging from $2.32 to $2.35.
- F6: These shares were purchased in multiple transactions at prices ranging from $2.33 to $2.40.
Original sources
Prepared automatically from public filing data. Report a correction.