Tang Capital Management Llc (CIK 0001232621)

Latest company ownership

Shares held
2,715,852
Last filed at
Jan 19, 2010
Confidence Score
50.0
2025Q4
Confidence Score History
2008Q3 2025Q4
Shares held
559,900
Last filed at
Feb 27, 2017
Confidence Score
50.0
2025Q4
Confidence Score History
2017Q1 2025Q4
Shares held
21,288
Last filed at
Sep 12, 2018
Confidence Score
50.0
2025Q4
Confidence Score History
2014Q2 2025Q4
Shares held
0
Last filed at
Nov 26, 2021
Confidence Score
50.0
2025Q4
Confidence Score History
2020Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Nov 23, 2021 Nov 26, 2021 Aptevo Therapeutics Inc. Other Sell 15.0 -921,336 -100.00% ✗ $10.4M
Nov 18, 2021 Nov 22, 2021 Aptevo Therapeutics Inc. 10% Owner Sell 16.3 -838,664 -47.65% ✗ $6.5M
Nov 4, 2020 Nov 6, 2020 Aptevo Therapeutics Inc. 10% Owner Buy 100.0 +1,436,675 444.34% ✗ $24.8M
Sep 12, 2018 Sep 12, 2018 HERON THERAPEUTICS, INC. /DE/ 10% Owner Sell 15.0 -2,695,000 -31.53% ✗ $96.3M
Mar 29, 2018 Apr 2, 2018 HERON THERAPEUTICS, INC. /DE/ 10% Owner Buy 88.8 +192,308 2.30% ✗ $5M
Feb 23, 2017 Feb 27, 2017 Cyclacel Pharmaceuticals, Inc. 10% Owner Buy 97.5 +134,200 31.52% ✗ $582.1K
Jan 19, 2017 Jan 23, 2017 HERON THERAPEUTICS, INC. /DE/ 10% Owner Buy 100.0 +2,459,016 41.71% ✗ $30M
Jun 16, 2016 Jun 20, 2016 HERON THERAPEUTICS, INC. /DE/ 10% Owner Sell 17.5 -243,639 -3.97% ✗ $4.5M
Jun 10, 2015 Jun 12, 2015 HERON THERAPEUTICS, INC. /DE/ 10% Owner Buy 92.5 +121,212 2.54% ✗ $3M
May 29, 2015 Jun 2, 2015 HERON THERAPEUTICS, INC. /DE/ 10% Owner Buy 92.5 +150,000 3.25% ✗ $3.1M
Jun 25, 2014 Jun 27, 2014 HERON THERAPEUTICS, INC. /DE/ 10% Owner Buy 100.0 +510,638 12.43% ✗ $6M
Jan 14, 2010 Jan 19, 2010 Vanda Pharmaceuticals Inc. 10% Owner Sell 20.0 -54,900 -1.98% ✗ $589.2K
Jan 11, 2010 Jan 13, 2010 Vanda Pharmaceuticals Inc. 10% Owner Sell 17.5 -149,600 -5.12% ✗ $1.6M
Jan 4, 2010 Jan 6, 2010 Vanda Pharmaceuticals Inc. 10% Owner Sell 17.5 -145,500 -4.75% ✗ $1.7M
Oct 13, 2009 Oct 15, 2009 Vanda Pharmaceuticals Inc. 10% Owner Sell 16.3 -600,000 -16.37% ✗ $7.6M
Nov 20, 2008 Dec 2, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 87.5 +145,000 4.12% ✗ $105.5K
Nov 7, 2008 Nov 12, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 97.5 +560,000 18.91% ✗ $464.3K
Sep 25, 2008 Sep 29, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 97.5 +600,000 11.95% ✗ $622.7K
Sep 23, 2008 Sep 25, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 82.5 +80,000 1.62% ✗ $78.5K
Sep 22, 2008 Sep 24, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 82.5 +100,000 2.07% ✗ $99.9K
Sep 19, 2008 Sep 23, 2008 Vanda Pharmaceuticals Inc. 10% Owner Buy 100.0 +1,080,852 28.76% ✗ $1.1M