Insider Trading History of Liu David Y

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Liu David Y since 2017. This trader's CIK number is 1675881. At the time of last reporting, Liu David Y was the Chief R&D Strategy Officer of Protagonist Therapeutics, Inc. (stock ticker symbol PTGX). Also see all insider trading activities at Protagonist Therapeutics, Inc.


Yearly summary of insider trading at Protagonist Therapeutics, Inc (PTGX) by Liu David Y

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2022 PTGX 0 $0 0 $0 301,437 $604,077
2021 PTGX 0 $0 14,779 $702,889 10,000 $8,700
2019 PTGX 0 $0 8,026 $66,112 0 $0
2018 PTGX 0 $0 5,250 $109,501 5,250 $18,041
2017 PTGX 0 $0 15,750 $250,642 14,875 $44,353


Insider trading of Protagonist Therapeutics, Inc (PTGX) by Liu David Y

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2022-11-16 PTGX Option Ex 100,479 2.00 201,359
2022-11-16 PTGX Option Ex 100,479 2.00 201,359
2022-11-16 PTGX Option Ex 100,479 2.00 201,359
2021-08-17 PTGX Option Ex 10,000 .87 8,700
2021-08-17 PTGX Sale 14,779 47.56 702,889
2019-08-06 PTGX Sale 3,395 8.85 30,045
2019-03-01 PTGX Sale 810 8.03 6,504
2019-02-06 PTGX Sale 3,821 7.74 29,563
2018-03-12 PTGX Option Ex 3,500 4.21 14,735
2018-03-12 PTGX Sale 3,500 21.29 74,501
2018-03-02 PTGX Option Ex 875 1.89 1,653
2018-03-02 PTGX Sale 875 20.00 17,500
2018-01-16 PTGX Sale 875 20.00 17,500
2018-01-16 PTGX Option Ex 875 1.89 1,653
2017-12-18 PTGX Option Ex 875 1.89 1,653
2017-12-18 PTGX Sale 875 20.00 17,500
2017-11-30 PTGX Sale 875 20.00 17,500
2017-11-13 PTGX Sale 7,000 16.97 118,762
2017-11-13 PTGX Option Ex 7,000 3.05 21,350
2017-08-28 PTGX Option Ex 3,500 4.21 14,735
2017-08-28 PTGX Sale 3,500 15.00 52,500
2017-07-10 PTGX Option Ex 3,500 1.89 6,615
2017-07-10 PTGX Sale 3,500 12.68 44,380

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 Liu David Y (Chief R&D Strategy Officer of Protagonist Therapeutics, Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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