VKTX

Viking Therapeutics, Inc.

Insider trading activity for Viking Therapeutics, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$6.3M

net selling

Bought(0 · 0 insiders): $0
Sold(3 · 3 insiders): $6.3M

Past 6 months

-$6.3M

net selling

Bought(0 · 0 insiders): $0
Sold(3 · 3 insiders): $6.3M

Past 12 months

-$22.1M

net selling

Bought(1 · 1 insiders): $149.9K
Sold(20 · 5 insiders): $22.3M

Transaction history

The 66 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 1	Kelly-Gemmell Dorothy…	Director	AGRANT◆	40,800	—	—	—	Open the original filing on SEC.gov
Aug 1	Kelly-Gemmell Dorothy…	Director	AGRANT	6,333	—	—	—	Open the original filing on SEC.gov
Jul 29	Zante Greg	Chief Financial Officer	SSELL	21,217	$33.47	$710.1K	-9.1%	Open the original filing on SEC.gov
Jul 29	Mancini Marianna	Chief Operating Officer	SSELL	18,217	$33.47	$609.6K	-4.1%	Open the original filing on SEC.gov
Jul 29	Lian Brian	President & CEO	SSELL	148,517	$33.32	$4.9M	-5.5%	Open the original filing on SEC.gov
Jul 28	Zante Greg	Chief Financial Officer	AGRANT	31,667	—	—	+15.7%	Open the original filing on SEC.gov
Jul 28	Mancini Marianna	Chief Operating Officer	AGRANT	31,667	—	—	+7.7%	Open the original filing on SEC.gov
Jul 28	Lian Brian	President & CEO	AGRANT	221,667	—	—	+8.9%	Open the original filing on SEC.gov
Jun 1	Chen Hubert C	Chief Medical Officer	AGRANT◆	190,000	—	—	—	Open the original filing on SEC.gov
Mar 10	Aubuchon Neil William	Chief Commercial Officer	PBUY★	4,475	$33.50	$149.9K	—	Open the original filing on SEC.gov
Jan 12	Aubuchon Neil William	Chief Commercial Officer	AGRANT◆	180,000	—	—	—	Open the original filing on SEC.gov
Jan 5	Zante Greg	Chief Financial Officer	SSELL	1,500	$32.09	$48.1K	-0.8%	Open the original filing on SEC.gov
Jan 5	Zante Greg	Chief Financial Officer	SSELL	10,300	$34.24	$352.6K	-5.1%	Open the original filing on SEC.gov
Jan 5	Zante Greg	Chief Financial Officer	SSELL	13,900	$33.38	$464K	-6.5%	Open the original filing on SEC.gov
Jan 5	Zante Greg	Chief Financial Officer	SSELL	31,961	$32.30	$1M	-12.9%	Open the original filing on SEC.gov
Jan 5	Mancini Marianna	Chief Operating Officer	SSELL	1,600	$35.07	$56.1K	-0.4%	Open the original filing on SEC.gov
Jan 5	Mancini Marianna	Chief Operating Officer	SSELL	10,500	$34.22	$359.3K	-2.5%	Open the original filing on SEC.gov
Jan 5	Mancini Marianna	Chief Operating Officer	SSELL	13,600	$33.37	$453.9K	-3.1%	Open the original filing on SEC.gov
Jan 5	Mancini Marianna	Chief Operating Officer	SSELL	31,961	$32.29	$1M	-6.9%	Open the original filing on SEC.gov
Jan 5	Lian Brian	President & CEO	SSELL	6,400	$35.07	$224.4K	-0.3%	Open the original filing on SEC.gov
Jan 5	Lian Brian	President & CEO	SSELL	41,276	$34.22	$1.4M	-1.6%	Open the original filing on SEC.gov
Jan 5	Lian Brian	President & CEO	SSELL	53,279	$33.38	$1.8M	-2.1%	Open the original filing on SEC.gov
Jan 5	Lian Brian	President & CEO	SSELL	132,454	$32.29	$4.3M	-4.9%	Open the original filing on SEC.gov
Jan 2	Zante Greg	Chief Financial Officer	AGRANT◆	91,000	—	—	—	Open the original filing on SEC.gov
Jan 2	Zante Greg	Chief Financial Officer	AGRANT	32,049	—	—	+14.9%	Open the original filing on SEC.gov
Jan 2	Zante Greg	Chief Financial Officer	AGRANT	41,000	—	—	+23.5%	Open the original filing on SEC.gov
Jan 2	Singleton J Matthew	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Jan 2	Singleton J Matthew	Director	AGRANT	3,150	—	—	+33.2%	Open the original filing on SEC.gov
Jan 2	Rowland Charles A Jr	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Jan 2	Rowland Charles A Jr	Director	AGRANT	3,150	—	—	+10.5%	Open the original filing on SEC.gov
Jan 2	Rouan Sarah Kathryn	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Jan 2	Rouan Sarah Kathryn	Director	AGRANT	3,150	—	—	+254.0%	Open the original filing on SEC.gov
Jan 2	Mancini Marianna	Chief Operating Officer	AGRANT◆	91,000	—	—	—	Open the original filing on SEC.gov
Jan 2	Mancini Marianna	Chief Operating Officer	AGRANT	32,049	—	—	+7.4%	Open the original filing on SEC.gov
Jan 2	Mancini Marianna	Chief Operating Officer	AGRANT	41,000	—	—	+10.4%	Open the original filing on SEC.gov
Jan 2	MacArtney Lawson	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Jan 2	MacArtney Lawson	Director	AGRANT	3,150	—	—	+6.6%	Open the original filing on SEC.gov
Jan 2	Lian Brian	President & CEO	AGRANT◆	176,300	—	—	—	Open the original filing on SEC.gov
Jan 2	Lian Brian	President & CEO	AGRANT	224,080	—	—	+8.9%	Open the original filing on SEC.gov
Jan 2	Lian Brian	President & CEO	AGRANT	78,400	—	—	+3.2%	Open the original filing on SEC.gov
Jan 2	Foehr Matthew W	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Jan 2	Foehr Matthew W	Director	MEXER◆	16,000	—	—	—	Open the original filing on SEC.gov
Jan 2	Foehr Matthew W	Director	AGRANT	3,150	—	—	+2.4%	Open the original filing on SEC.gov
Jan 2	Foehr Matthew W	Director	SSELL	16,000	$35.11	$561.7K	-10.8%	Open the original filing on SEC.gov
Jan 2	Foehr Matthew W	Director	MEXER	16,000	$3.33	$53.3K	+12.1%	Open the original filing on SEC.gov
Oct 28, 2025	Zante Greg	Chief Financial Officer	SSELL	6,185	$35.00	$216.5K	-3.4%	Open the original filing on SEC.gov
Oct 28, 2025	Mancini Marianna	Chief Operating Officer	SSELL	6,185	$35.00	$216.5K	-1.6%	Open the original filing on SEC.gov
Oct 28, 2025	Lian Brian	President & CEO	SSELL	38,989	$35.01	$1.4M	-1.6%	Open the original filing on SEC.gov
Oct 27, 2025	Zante Greg	Chief Financial Officer	AGRANT	11,117	—	—	+6.6%	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	MEXER◆	22,000	—	—	—	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	MEXER◆	22,000	—	—	—	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	MEXER◆	16,000	—	—	—	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	SSELL	60,000	$35.57	$2.1M	-66.7%	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	AGRANT	22,000	$4.88	$107.4K	+32.4%	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	AGRANT	22,000	$5.80	$127.6K	+47.8%	Open the original filing on SEC.gov
Oct 27, 2025	Rowland Charles A Jr	Director	AGRANT	16,000	$4.48	$71.7K	+53.3%	Open the original filing on SEC.gov
Oct 27, 2025	Mancini Marianna	Chief Operating Officer	AGRANT	11,117	—	—	+2.9%	Open the original filing on SEC.gov
Oct 27, 2025	Lian Brian	President & CEO	AGRANT	70,084	—	—	+2.9%	Open the original filing on SEC.gov
Jul 3, 2025	Zante Greg	Chief Financial Officer	SSELL	4,266	$27.76	$118.4K	-2.5%	Open the original filing on SEC.gov
Jul 3, 2025	Mancini Marianna	Chief Operating Officer	SSELL	4,266	$27.77	$118.5K	-1.1%	Open the original filing on SEC.gov
Jul 3, 2025	Lian Brian	President & CEO	SSELL	26,889	$27.80	$747.6K	-1.1%	Open the original filing on SEC.gov
Jul 2, 2025	Zante Greg	Chief Financial Officer	AGRANT	7,667	—	—	+4.6%	Open the original filing on SEC.gov
Jul 2, 2025	Mancini Marianna	Chief Operating Officer	AGRANT	7,667	—	—	+2.1%	Open the original filing on SEC.gov
Jul 2, 2025	Lian Brian	President & CEO	AGRANT	48,333	—	—	+2.0%	Open the original filing on SEC.gov
Apr 11, 2025	Foehr Matthew W	Director	MEXER◆	20,786	—	—	—	Open the original filing on SEC.gov
Apr 11, 2025	Foehr Matthew W	Director	MEXER	20,786	$8.00	$166.3K	+18.7%	Open the original filing on SEC.gov

AGRANT◆—

Kelly-Gemmell Dorothy… · DirectorAug 1

40,800 sh

AGRANT—

Kelly-Gemmell Dorothy… · DirectorAug 1

6,333 sh

SSELL$710.1K

Zante Greg · Chief Financial…Jul 29

21,217 sh @ $33.47 · -9.1% own

SSELL$609.6K

Mancini Marianna · Chief Operating…Jul 29

18,217 sh @ $33.47 · -4.1% own

SSELL$4.9M

Lian Brian · President & CEOJul 29

148,517 sh @ $33.32 · -5.5% own

AGRANT—

Zante Greg · Chief Financial…Jul 28

31,667 sh · +15.7% own

AGRANT—

Mancini Marianna · Chief Operating…Jul 28

31,667 sh · +7.7% own

AGRANT—

Lian Brian · President & CEOJul 28

221,667 sh · +8.9% own

AGRANT◆—

Chen Hubert C · Chief Medical…Jun 1

190,000 sh

PBUY★$149.9K

Aubuchon Neil William · Chief Commercial…Mar 10

4,475 sh @ $33.50

AGRANT◆—

Aubuchon Neil William · Chief Commercial…Jan 12

180,000 sh

SSELL$48.1K

Zante Greg · Chief Financial…Jan 5

1,500 sh @ $32.09 · -0.8% own

SSELL$352.6K

Zante Greg · Chief Financial…Jan 5

10,300 sh @ $34.24 · -5.1% own

SSELL$464K

Zante Greg · Chief Financial…Jan 5

13,900 sh @ $33.38 · -6.5% own

SSELL$1M

Zante Greg · Chief Financial…Jan 5

31,961 sh @ $32.30 · -12.9% own

SSELL$56.1K

Mancini Marianna · Chief Operating…Jan 5

1,600 sh @ $35.07 · -0.4% own

SSELL$359.3K

Mancini Marianna · Chief Operating…Jan 5

10,500 sh @ $34.22 · -2.5% own

SSELL$453.9K

Mancini Marianna · Chief Operating…Jan 5

13,600 sh @ $33.37 · -3.1% own

SSELL$1M

Mancini Marianna · Chief Operating…Jan 5

31,961 sh @ $32.29 · -6.9% own

SSELL$224.4K

Lian Brian · President & CEOJan 5

6,400 sh @ $35.07 · -0.3% own

SSELL$1.4M

Lian Brian · President & CEOJan 5

41,276 sh @ $34.22 · -1.6% own

SSELL$1.8M

Lian Brian · President & CEOJan 5

53,279 sh @ $33.38 · -2.1% own

SSELL$4.3M

Lian Brian · President & CEOJan 5

132,454 sh @ $32.29 · -4.9% own

AGRANT◆—

Zante Greg · Chief Financial…Jan 2

91,000 sh

AGRANT—

Zante Greg · Chief Financial…Jan 2

32,049 sh · +14.9% own

AGRANT—

Zante Greg · Chief Financial…Jan 2

41,000 sh · +23.5% own

AGRANT◆—

Singleton J Matthew · DirectorJan 2

20,400 sh

AGRANT—

Singleton J Matthew · DirectorJan 2

3,150 sh · +33.2% own

AGRANT◆—

Rowland Charles A Jr · DirectorJan 2

20,400 sh

AGRANT—

Rowland Charles A Jr · DirectorJan 2

3,150 sh · +10.5% own

AGRANT◆—

Rouan Sarah Kathryn · DirectorJan 2

20,400 sh

AGRANT—

Rouan Sarah Kathryn · DirectorJan 2

3,150 sh · +254.0% own

AGRANT◆—

Mancini Marianna · Chief Operating…Jan 2

91,000 sh

AGRANT—

Mancini Marianna · Chief Operating…Jan 2

32,049 sh · +7.4% own

AGRANT—

Mancini Marianna · Chief Operating…Jan 2

41,000 sh · +10.4% own

AGRANT◆—

MacArtney Lawson · DirectorJan 2

20,400 sh

AGRANT—

MacArtney Lawson · DirectorJan 2

3,150 sh · +6.6% own

AGRANT◆—

Lian Brian · President & CEOJan 2

176,300 sh

AGRANT—

Lian Brian · President & CEOJan 2

224,080 sh · +8.9% own

AGRANT—

Lian Brian · President & CEOJan 2

78,400 sh · +3.2% own

AGRANT◆—

Foehr Matthew W · DirectorJan 2

20,400 sh

MEXER◆—

Foehr Matthew W · DirectorJan 2

16,000 sh

AGRANT—

Foehr Matthew W · DirectorJan 2

3,150 sh · +2.4% own

SSELL$561.7K

Foehr Matthew W · DirectorJan 2

16,000 sh @ $35.11 · -10.8% own

MEXER$53.3K

Foehr Matthew W · DirectorJan 2

16,000 sh @ $3.33 · +12.1% own

SSELL$216.5K

Zante Greg · Chief Financial…Oct 28, 2025

6,185 sh @ $35.00 · -3.4% own

SSELL$216.5K

Mancini Marianna · Chief Operating…Oct 28, 2025

6,185 sh @ $35.00 · -1.6% own

SSELL$1.4M

Lian Brian · President & CEOOct 28, 2025

38,989 sh @ $35.01 · -1.6% own

AGRANT—

Zante Greg · Chief Financial…Oct 27, 2025

11,117 sh · +6.6% own

MEXER◆—

Rowland Charles A Jr · DirectorOct 27, 2025

22,000 sh

MEXER◆—

Rowland Charles A Jr · DirectorOct 27, 2025

22,000 sh

MEXER◆—

Rowland Charles A Jr · DirectorOct 27, 2025

16,000 sh

SSELL$2.1M

Rowland Charles A Jr · DirectorOct 27, 2025

60,000 sh @ $35.57 · -66.7% own

AGRANT$107.4K

Rowland Charles A Jr · DirectorOct 27, 2025

22,000 sh @ $4.88 · +32.4% own

AGRANT$127.6K

Rowland Charles A Jr · DirectorOct 27, 2025

22,000 sh @ $5.80 · +47.8% own

AGRANT$71.7K

Rowland Charles A Jr · DirectorOct 27, 2025

16,000 sh @ $4.48 · +53.3% own

AGRANT—

Mancini Marianna · Chief Operating…Oct 27, 2025

11,117 sh · +2.9% own

AGRANT—

Lian Brian · President & CEOOct 27, 2025

70,084 sh · +2.9% own

SSELL$118.4K

Zante Greg · Chief Financial…Jul 3, 2025

4,266 sh @ $27.76 · -2.5% own

SSELL$118.5K

Mancini Marianna · Chief Operating…Jul 3, 2025

4,266 sh @ $27.77 · -1.1% own

SSELL$747.6K

Lian Brian · President & CEOJul 3, 2025

26,889 sh @ $27.80 · -1.1% own

AGRANT—

Zante Greg · Chief Financial…Jul 2, 2025

7,667 sh · +4.6% own

AGRANT—

Mancini Marianna · Chief Operating…Jul 2, 2025

7,667 sh · +2.1% own

AGRANT—

Lian Brian · President & CEOJul 2, 2025

48,333 sh · +2.0% own

MEXER◆—

Foehr Matthew W · DirectorApr 11, 2025

20,786 sh

MEXER$166.3K

Foehr Matthew W · DirectorApr 11, 2025

20,786 sh @ $8.00 · +18.7% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

2 of 22 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 6 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Jan 12	Jan 25	Aubuchon Neil WilliamChief Commercial Officer	6days	—	Filing ↗
Aug 1	Aug 6	Kelly-Gemmell Dorothy…Director	2days	—	Filing ↗

Aubuchon Neil WilliamChief Commercial Officer

6days

Traded Jan 12 · filed Jan 25Filing ↗

Kelly-Gemmell Dorothy…Director

2days

Traded Aug 1 · filed Aug 6Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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