- Corporate Officers - T
- Tang Capital Management Llc
Insider Trading History of Tang Capital Management Llc
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Tang Capital Management Llc since 2015.
This trader's CIK number is 1232621.
At the time of last reporting, Tang Capital Management Llc was the Officer of Boundless Bio, Inc.. (stock ticker symbol BOLD).
Also see all insider trading activities at Boundless Bio, Inc..
Note that in the past
TANG CAPITAL MANAGEMENT LLC also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at La Jolla Pharmaceutical Co (LJPC) by Tang Capital Management Llc
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | LJPC | 3,141,452 | $18,628,852 | 0 | $0 | 0 | $0 |
| 2019 | LJPC | 1,300,000 | $6,993,072 | 0 | $0 | 0 | $0 |
| 2018 | LJPC | 548,474 | $16,202,503 | 0 | $0 | 0 | $0 |
| 2017 | LJPC | 249,254 | $8,463,809 | 0 | $0 | 0 | $0 |
| 2016 | LJPC | 159,035 | $3,152,323 | 0 | $0 | 0 | $0 |
| 2015 | LJPC | 770,583 | $18,598,741 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Fulcrum Therapeutics, Inc. (FULC) by Tang Capital Management Llc
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2026 | FULC | 417,562 | $1,485,517 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Aurinia Pharmaceuticals Inc. (AUPH) by Tang Capital Management Llc
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2026 | AUPH | 814,606 | $12,470,736 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Boundless Bio, Inc. (BOLD) by Tang Capital Management Llc
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2026 | BOLD | 611,423 | $1,520,325 | 0 | $0 | 0 | $0 |
Insider trading activities at 4 companies by Tang Capital Management Llc:
1. La Jolla Pharmaceutical Co (LJPC)
2. Fulcrum Therapeutics, Inc. (FULC)
3. Aurinia Pharmaceuticals Inc. (AUPH)
4. Boundless Bio, Inc. (BOLD)
Table 1. Insider trading of La Jolla Pharmaceutical Co (LJPC) by Tang Capital Management Llc
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-01-30 | LJPC | Buy | 81,475 | 6.72 | 547,430 |
| 2020-01-31 | LJPC | Buy | 13,292 | 6.75 | 89,707 |
| 2020-02-03 | LJPC | Buy | 75,003 | 6.80 | 509,870 |
| 2020-01-09 | LJPC | Buy | 1,000,000 | 5.04 | 5,039,000 |
| 2020-01-10 | LJPC | Buy | 717,804 | 5.70 | 4,090,764 |
| 2020-01-13 | LJPC | Buy | 1,253,878 | 6.66 | 8,352,081 |
| 2019-01-07 | LJPC | Buy | 100,000 | 5.84 | 583,800 |
| 2019-01-09 | LJPC | Buy | 79,214 | 5.54 | 438,845 |
| 2019-01-08 | LJPC | Buy | 1,120,786 | 5.33 | 5,970,427 |
| 2018-03-15 | LJPC | Buy | 508,474 | 29.50 | 14,999,983 |
| 2018-02-28 | LJPC | Buy | 30,000 | 29.94 | 898,080 |
| 2018-03-02 | LJPC | Buy | 10,000 | 30.44 | 304,440 |
| 2017-03-23 | LJPC | Buy | 149,254 | 33.50 | 5,000,009 |
| 2017-03-02 | LJPC | Buy | 100,000 | 34.64 | 3,463,800 |
| 2016-09-12 | LJPC | Buy | 22,587 | 19.92 | 449,887 |
| 2016-09-09 | LJPC | Buy | 100,000 | 19.72 | 1,972,000 |
| 2016-09-13 | LJPC | Buy | 16,448 | 20.28 | 333,516 |
| 2016-03-04 | LJPC | Buy | 20,000 | 19.85 | 396,920 |
| 2015-09-10 | LJPC | Buy | 80,000 | 38.00 | 3,040,000 |
| 2015-08-21 | LJPC | Buy | 50,000 | 27.69 | 1,384,500 |
| 2015-08-19 | LJPC | Buy | 70,000 | 26.74 | 1,871,800 |
| 2015-08-20 | LJPC | Buy | 50,000 | 26.84 | 1,342,000 |
| 2015-06-26 | LJPC | Buy | 110,000 | 23.58 | 2,593,470 |
| 2015-06-23 | LJPC | Buy | 53,836 | 22.27 | 1,198,766 |
| 2015-06-24 | LJPC | Buy | 88,314 | 22.94 | 2,026,188 |
| 2015-06-22 | LJPC | Buy | 77,850 | 21.41 | 1,666,612 |
| 2015-05-13 | LJPC | Buy | 47,483 | 18.63 | 884,513 |
| 2015-05-11 | LJPC | Buy | 98,700 | 18.04 | 1,780,548 |
| 2015-05-12 | LJPC | Buy | 44,400 | 18.25 | 810,344 |
Table 2. Insider trading of Fulcrum Therapeutics, Inc. (FULC) by Tang Capital Management Llc
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2026-07-16 | FULC | Buy | 116,671 | 3.56 | 415,348 |
| 2026-07-17 | FULC | Buy | 50,945 | 3.52 | 179,326 |
| 2026-07-14 | FULC | Buy | 129,603 | 3.57 | 462,682 |
| 2026-07-15 | FULC | Buy | 107,377 | 3.56 | 382,262 |
| 2026-07-13 | FULC | Buy | 12,966 | 3.54 | 45,899 |
Table 3. Insider trading of Aurinia Pharmaceuticals Inc. (AUPH) by Tang Capital Management Llc
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2026-06-01 | AUPH | Buy | 343,620 | 15.31 | 5,260,822 |
| 2026-05-29 | AUPH | Buy | 264,981 | 15.33 | 4,062,158 |
| 2026-06-02 | AUPH | Buy | 206,005 | 15.28 | 3,147,756 |
Table 4. Insider trading of Boundless Bio, Inc. (BOLD) by Tang Capital Management Llc
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2026-07-17 | BOLD | Buy | 265 | 2.44 | 646 |
| 2026-07-20 | BOLD | Buy | 1,623 | 2.44 | 3,960 |
| 2026-07-21 | BOLD | Buy | 2,975 | 2.44 | 7,259 |
| 2026-07-16 | BOLD | Buy | 18,491 | 2.44 | 45,118 |
| 2026-07-15 | BOLD | Buy | 1,600 | 2.44 | 3,904 |
| 2026-07-14 | BOLD | Buy | 43,878 | 2.43 | 106,623 |
| 2026-07-13 | BOLD | Buy | 48,211 | 2.42 | 116,670 |
| 2026-07-10 | BOLD | Buy | 43,367 | 2.43 | 105,381 |
| 2026-07-09 | BOLD | Buy | 7 | 2.48 | 17 |
| 2026-07-06 | BOLD | Buy | 27,062 | 2.49 | 67,384 |
| 2026-07-07 | BOLD | Buy | 15,810 | 2.48 | 39,208 |
| 2026-07-08 | BOLD | Buy | 14,338 | 2.46 | 35,271 |
| 2026-06-30 | BOLD | Buy | 26,030 | 2.52 | 65,595 |
| 2026-07-02 | BOLD | Buy | 9,821 | 2.49 | 24,454 |
| 2026-07-01 | BOLD | Buy | 71,612 | 2.49 | 178,313 |
| 2026-06-26 | BOLD | Buy | 75,181 | 2.54 | 191,335 |
| 2026-06-25 | BOLD | Buy | 146,390 | 2.52 | 368,902 |
| 2026-06-29 | BOLD | Buy | 64,762 | 2.48 | 160,285 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Tang Capital Management Llc
(Officer of Boundless Bio, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.