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Viking Therapeutics, Inc.

VKTX Net selling
CIK 0001607678 #1525 in the set updated 18 Sep 2026
Bought (120 mo)
$960.63K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$151.41M
$1.35M on a plan · $99.04M straight out of an exercise
Sold at will
$51.02M
44 of 111 sales
Net
−$150.45M
−$50.06M against sales at will

By person

14 insiders · 125 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Lian Brian
President & CEO
—
$74.66M (36) scheduled
−$74.66M
2,572,441
2.21%
$86.09M
+72.0%
Mancini Marianna
Chief Operating Officer
—
$32.19M (19) scheduled
−$32.19M
422,760
0.3624%
$14.15M
+260.0%
ZANTE GREG
Chief Financial Officer
—
$26.05M (30) scheduled
−$26.05M
212,204
0.1819%
$7.10M
+335.2%
LIGAND PHARMACEUTICALS INC entity
10% owner
—
$6.36M (3)
−$6.36M
5,819,383
4.99%
$194.75M
−6.8%
SINGLETON J MATTHEW
Director
$93.26K (1)
$4.58M (11) scheduled
−$4.48M
12,650
0.0108%
$423.33K
—
Rowland Charles A Jr
Director
$154.80K (1)
$3.13M (2) scheduled
−$2.98M
33,150
0.0284%
$1.11M
—
Rouan Sarah Kathryn
Director
$29.94K (1)
$2.28M (3) scheduled
−$2.25M
4,390
0.0038%
$146.91K
—
MACARTNEY LAWSON
Director
$250.33K (1)
$1.29M (4) scheduled
−$1.04M
51,115
0.0438%
$1.71M
—
FOEHR MATTHEW W
Director
$240.67K (3)
$657.24K (2) scheduled
−$416.57K
135,186
0.1159%
$4.52M
+415.0%
MORNEAU MICHAEL
VP, Finance and Administration
—
$199.35K (1)
−$199.35K
116,062
0.0995%
$3.88M
−5.4%
Aubuchon Neil William
Chief Commercial Officer
$149.91K (1)
—
+$149.91K
4,475
0.0038%
$149.76K
—
Webster Stephen W
Director
$41.71K (1)
—
+$41.71K
8,000
0.0069%
$267.72K
—
Masamune Hiroko
Chief Development Officer
—
—
—
141,063
0.1209%
$4.72M
+36.4%
Kelly-Gemmell Dorothy Elizabeth
Director
—
—
—
6,333
0.0054%
$211.94K
—

Individual transactions

125
Insider
Date
Role
Action
Shares
Price
Amount
Mancini Marianna
29 Jul 2026
Chief Operating Officer
Sell
18,217
$33.47
$609.64K
ZANTE GREG
29 Jul 2026
Chief Financial Officer
Sell
21,217
$33.47
$710.14K
Lian Brian
29 Jul 2026
President & CEO
Sell
148,517
$33.32
$4.95M
Aubuchon Neil William
10 Mar 2026
Chief Commercial Officer
Buy
4,475
$33.50
$149.91K
Lian Brian
5 Jan 2026
President & CEO
Sell
6,400
$35.07
$224.42K
Lian Brian
5 Jan 2026
President & CEO
Sell
41,276
$34.22
$1.41M
Lian Brian
5 Jan 2026
President & CEO
Sell
53,279
$33.38
$1.78M
Lian Brian
5 Jan 2026
President & CEO
Sell
132,454
$32.29
$4.28M
Mancini Marianna
5 Jan 2026
Chief Operating Officer
Sell
1,600
$35.07
$56.12K
Mancini Marianna
5 Jan 2026
Chief Operating Officer
Sell
10,500
$34.22
$359.30K
Mancini Marianna
5 Jan 2026
Chief Operating Officer
Sell
13,600
$33.37
$453.88K
Mancini Marianna
5 Jan 2026
Chief Operating Officer
Sell
31,961
$32.29
$1.03M
ZANTE GREG
5 Jan 2026
Chief Financial Officer
Sell
1,500
$32.09
$48.13K
ZANTE GREG
5 Jan 2026
Chief Financial Officer
Sell
10,300
$34.24
$352.63K
ZANTE GREG
5 Jan 2026
Chief Financial Officer
Sell
13,900
$33.38
$464.02K
ZANTE GREG
5 Jan 2026
Chief Financial Officer
Sell
31,961
$32.30
$1.03M
FOEHR MATTHEW W
2 Jan 2026
Director
Sold after exercise
16,000
$35.11
$561.69K
ZANTE GREG
28 Oct 2025
Chief Financial Officer
Sell
6,185
$35.00
$216.48K
Lian Brian
28 Oct 2025
President & CEO
Sell
38,989
$35.01
$1.36M
Mancini Marianna
28 Oct 2025
Chief Operating Officer
Sell
6,185
$35.00
$216.49K
Rowland Charles A Jr
27 Oct 2025
Director
Sold after exercise
60,000
$35.57
$2.13M
Mancini Marianna
3 Jul 2025
Chief Operating Officer
Sell
4,266
$27.77
$118.47K
ZANTE GREG
3 Jul 2025
Chief Financial Officer
Sell
4,266
$27.76
$118.43K
Lian Brian
3 Jul 2025
President & CEO
Sell
26,889
$27.80
$747.63K
FOEHR MATTHEW W
11 Apr 2025
Director
Exercised, kept
20,786
$8.00
$166.29K
Rouan Sarah Kathryn
31 Mar 2025
Director
Buy
1,240
$24.15
$29.94K
ZANTE GREG
6 Jan 2025
Chief Financial Officer
Sell
4,700
$43.32
$203.60K
ZANTE GREG
6 Jan 2025
Chief Financial Officer
Sell
45,609
$42.69
$1.95M
Mancini Marianna
6 Jan 2025
Chief Operating Officer
Sell
5,100
$43.32
$220.91K
Mancini Marianna
6 Jan 2025
Chief Operating Officer
Sell
49,115
$42.69
$2.10M
Lian Brian
6 Jan 2025
President & CEO
Sell
19,000
$43.32
$823.02K
Lian Brian
6 Jan 2025
President & CEO
Sell
175,490
$42.68
$7.49M
MACARTNEY LAWSON
8 Nov 2024
Director
Sold after exercise
2,000
$68.67
$137.33K
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
1,206
$81.44
$98.22K
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
7,967
$80.65
$642.54K
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
6,050
$79.78
$482.66K
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
15,825
$78.69
$1.25M
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
23,082
$77.68
$1.79M
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
9,265
$76.94
$712.80K
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
18,620
$75.79
$1.41M
ZANTE GREG
28 Oct 2024
Chief Financial Officer
Sold after exercise
49,672
$74.56
$3.70M
SINGLETON J MATTHEW
25 Oct 2024
Director
Sold after exercise
16,000
$79.50
$1.27M
Rouan Sarah Kathryn
25 Oct 2024
Director
Sold after exercise
11,000
$80.89
$889.79K
Lian Brian
20 Sep 2024
President & CEO
Sold after exercise
200
$71.99
$14.40K
Lian Brian
20 Sep 2024
President & CEO
Sold after exercise
119,874
$71.15
$8.53M
Lian Brian
20 Sep 2024
President & CEO
Sold after exercise
96,056
$70.43
$6.77M
SINGLETON J MATTHEW
20 Sep 2024
Director
Sold after exercise
10,300
$69.50
$715.85K
SINGLETON J MATTHEW
21 Aug 2024
Director
Sold after exercise
5,700
$69.72
$397.43K
Lian Brian
21 Aug 2024
President & CEO
Sold after exercise
1,000
$69.90
$69.90K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
1,501
$64.88
$97.38K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
2,388
$64.10
$153.08K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
2,055
$63.15
$129.78K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
4,509
$61.86
$278.93K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
3,047
$61.13
$186.25K
SINGLETON J MATTHEW
19 Aug 2024
Director
Sold after exercise
2,500
$60.01
$150.03K
Lian Brian
19 Aug 2024
President & CEO
Sold after exercise
11,296
$67.12
$758.19K
Lian Brian
19 Aug 2024
President & CEO
Sold after exercise
31,442
$66.37
$2.09M
Lian Brian
19 Aug 2024
President & CEO
Sold after exercise
70,132
$65.33
$4.58M
SINGLETON J MATTHEW
14 Aug 2024
Director
Sold after exercise
160
$58.37
$9.34K
SINGLETON J MATTHEW
14 Aug 2024
Director
Sold after exercise
20,626
$57.52
$1.19M
Mancini Marianna
30 Jul 2024
Chief Operating Officer
Sell
3,322
$57.82
$192.08K
Mancini Marianna
30 Jul 2024
Chief Operating Officer
Sell
14,704
$56.98
$837.83K
Lian Brian
30 Jul 2024
President & CEO
Sell
30,417
$58.78
$1.79M
Lian Brian
30 Jul 2024
President & CEO
Sell
19,501
$57.81
$1.13M
Lian Brian
30 Jul 2024
President & CEO
Sell
65,941
$56.95
$3.76M
ZANTE GREG
30 Jul 2024
Chief Financial Officer
Sell
500
$58.71
$29.36K
ZANTE GREG
30 Jul 2024
Chief Financial Officer
Sell
2,974
$57.71
$171.63K
ZANTE GREG
30 Jul 2024
Chief Financial Officer
Sell
12,662
$56.96
$721.23K
ZANTE GREG
3 May 2024
Chief Financial Officer
Sold after exercise
847
$76.07
$64.43K
ZANTE GREG
3 May 2024
Chief Financial Officer
Sold after exercise
17,238
$75.49
$1.30M
ZANTE GREG
3 May 2024
Chief Financial Officer
Sold after exercise
45,570
$74.44
$3.39M
ZANTE GREG
3 May 2024
Chief Financial Officer
Sold after exercise
3,101
$73.49
$227.89K
Mancini Marianna
1 May 2024
Chief Operating Officer
Sold after exercise
6,248
$80.08
$500.31K
Mancini Marianna
1 May 2024
Chief Operating Officer
Sold after exercise
119,946
$79.29
$9.51M
Mancini Marianna
1 May 2024
Chief Operating Officer
Sold after exercise
105,343
$78.65
$8.28M
Mancini Marianna
1 May 2024
Chief Operating Officer
Sold after exercise
26,142
$77.49
$2.03M
Mancini Marianna
1 May 2024
Chief Operating Officer
Sold after exercise
23,746
$76.40
$1.81M
Lian Brian
9 Feb 2024
President & CEO
Sold on a plan
45,000
$29.90
$1.35M
Rouan Sarah Kathryn
8 Feb 2024
Director
Sold after exercise
25,000
$28.05
$701.25K
Lian Brian
8 Feb 2024
President & CEO
Sold after exercise
40,000
$28.90
$1.16M
Lian Brian
8 Feb 2024
President & CEO
Sold after exercise
40,000
$27.45
$1.10M
Lian Brian
8 Feb 2024
President & CEO
Sold after exercise
80,000
$26.95
$2.16M
Lian Brian
8 Feb 2024
President & CEO
Sold after exercise
60,000
$25.95
$1.56M
Lian Brian
8 Feb 2024
President & CEO
Sold after exercise
49,079
$25.75
$1.26M
Lian Brian
31 Jan 2024
President & CEO
Sold after exercise
45,000
$24.95
$1.12M
Lian Brian
31 Jan 2024
President & CEO
Sold after exercise
40,000
$24.45
$978.00K
Lian Brian
30 Jan 2024
President & CEO
Sold after exercise
35,000
$23.95
$838.25K
Rouan Sarah Kathryn
19 Jan 2024
Director
Sold after exercise
30,000
$23.05
$691.50K
ZANTE GREG
4 Jan 2024
Chief Financial Officer
Sell
15,000
$17.90
$268.50K
MACARTNEY LAWSON
16 May 2023
Director
Sold after exercise
16,000
$24.00
$384.00K
Rowland Charles A Jr
16 May 2023
Director
Sold after exercise
40,000
$25.00
$1.00M
Lian Brian
1 May 2023
President & CEO
Sell
45,000
$22.45
$1.01M
MACARTNEY LAWSON
24 Apr 2023
Director
Sold after exercise
16,000
$22.00
$352.06K
Lian Brian
19 Apr 2023
President & CEO
Sell
35,000
$21.45
$750.75K
ZANTE GREG
17 Apr 2023
Chief Financial Officer
Sold after exercise
7,500
$20.00
$150.00K
Mancini Marianna
17 Apr 2023
Chief Operating Officer
Sold after exercise
12,500
$20.00
$250.00K
Lian Brian
17 Apr 2023
President & CEO
Sold after exercise
155,000
$20.45
$3.17M
MACARTNEY LAWSON
17 Apr 2023
Director
Sold after exercise
20,786
$20.00
$415.72K
Lian Brian
13 Apr 2023
President & CEO
Sold after exercise
79,336
$18.45
$1.46M
ZANTE GREG
12 Apr 2023
Chief Financial Officer
Sold after exercise
41,544
$18.00
$747.79K
ZANTE GREG
11 Apr 2023
Chief Financial Officer
Sold after exercise
56,295
$18.00
$1.01M
ZANTE GREG
3 Apr 2023
Chief Financial Officer
Sold after exercise
30,911
$18.00
$556.40K
Lian Brian
3 Apr 2023
President & CEO
Sell
22,000
$17.85
$392.70K
Lian Brian
31 Mar 2023
President & CEO
Sold after exercise
67,970
$17.45
$1.19M
Mancini Marianna
30 Mar 2023
Chief Operating Officer
Exercised, kept
3,000
$6.47
$19.41K
Mancini Marianna
30 Mar 2023
Chief Operating Officer
Exercised, kept
10,000
$7.69
$76.90K
Mancini Marianna
30 Mar 2023
Chief Operating Officer
Exercised, kept
23,100
$8.52
$196.81K
ZANTE GREG
30 Mar 2023
Chief Financial Officer
Sold after exercise
131,029
$17.00
$2.23M
Lian Brian
30 Mar 2023
President & CEO
Sold after exercise
65,382
$17.45
$1.14M
Lian Brian
30 Mar 2023
President & CEO
Sold after exercise
88,000
$16.95
$1.49M
Mancini Marianna
29 Mar 2023
Chief Operating Officer
Sold after exercise
41,242
$16.00
$659.87K
Mancini Marianna
28 Mar 2023
Chief Operating Officer
Sold after exercise
196,563
$15.00
$2.95M
FOEHR MATTHEW W
2 May 2022
Director
Buy
45,000
$2.47
$111.20K
FOEHR MATTHEW W
10 Jun 2021
Director
Buy
20,000
$5.69
$113.80K
FOEHR MATTHEW W
22 Mar 2021
Director
Exercised, kept
20,000
$1.50
$30.00K
LIGAND PHARMACEUTICALS INC
26 Aug 2020
10% owner
Sell
94,488
$8.11
$766.11K
LIGAND PHARMACEUTICALS INC
25 Aug 2020
10% owner
Sell
70,000
$8.02
$561.58K
FOEHR MATTHEW W
30 Jun 2020
Director
Sell
13,000
$7.35
$95.55K
LIGAND PHARMACEUTICALS INC
25 Sep 2018
10% owner
Sell
262,881
$19.15
$5.03M
MORNEAU MICHAEL
31 May 2018
VP, Finance and Administration
Sell
21,551
$9.25
$199.35K
SINGLETON J MATTHEW
31 May 2018
Director
Buy
9,500
$9.82
$93.26K
MACARTNEY LAWSON
29 May 2018
Director
Buy
47,965
$5.22
$250.33K
Webster Stephen W
29 May 2018
Director
Buy
8,000
$5.21
$41.71K
Rowland Charles A Jr
29 May 2018
Director
Buy
30,000
$5.16
$154.80K
FOEHR MATTHEW W
15 Nov 2016
Director
Buy
13,000
$1.21
$15.68K

What was left out

Form 4 filings counted 173
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 1
Sales straight out of an exercise 66
Sales at will 44
Transactions with no price 0
Shares from compensation/vesting 8,612,884
Sales filed before the plan box existed 5
History held since 15 Nov 2016