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$CYTK

$70.50 -$0.41 (0.58%)

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Insider Transactions

Insider Transaction Summary

Value Trading Fund OS LP Biotechnology

3,811,271 shares

Net: 0 B/S: -

Robert I Blum

407,830 shares

Net: +1,355 B/S: 1.46

Fady Ibraham Malik

153,902 shares

Net: +15,689 B/S: 1.42

David Cragg

153,233 shares

Net: 0 B/S: -

Jeffrey Hessekiel

107,943 shares

Net: +107,943 B/S: ∞

MARK A SCHLOSSBERG

103,408 shares

Net: 0 B/S: -

Sung Lee

87,127 shares

Net: +15,498 B/S: 4.62

JOHN T HENDERSON

75,237 shares

Net: +1,556 B/S: 1.18

Andrew Callos

74,412 shares

Net: -54,725 B/S: 0.65

Bradley Paul Morgan

63,107 shares

Net: 0 B/S: -

Ching Jaw

57,346 shares

Net: 0 B/S: -

L PATRICK GAGE

51,234 shares

Net: 0 B/S: -

SHARON SURREY BARBARI

40,323 shares

Net: 0 B/S: -

Brett A Pletcher

33,140 shares

Net: 0 B/S: -

WENDELL WIERENGA

32,637 shares

Net: +292 B/S: 1.01

Caryn Gordon McDowell

32,548 shares

Net: 0 B/S: -

WENDALL WIERENGA

32,345 shares

Net: +164 B/S: ∞

ANDREW A WOLFF

32,255 shares

Net: 0 B/S: -

Nancy Wysenski

31,066 shares

Net: +456 B/S: ∞

Elisabeth Schnieders

23,919 shares

Net: 0 B/S: -

Muna Bhanji

23,510 shares

Net: 0 B/S: -

PETER S RODDY

21,520 shares

Net: 0 B/S: -

SANTO J COSTA

20,600 shares

Net: 0 B/S: -

Robert Arthur Harrington

18,930 shares

Net: -3,385 B/S: 0.21

SANDFORD D SMITH

18,801 shares

Net: 0 B/S: -

B LYNNE PARSHALL

17,933 shares

Net: -10,000 B/S: -

Robert Wong

17,889 shares

Net: 0 B/S: -

Edward M. MD Kaye

10,365 shares

Net: -42,929 B/S: 0.25

BONNIE CHARPENTIER

9,004 shares

Net: 0 B/S: -

Robert E Landry

7,333 shares

Net: 0 B/S: -

Robert Califf

6,003 shares

Net: 0 B/S: -

James M Daly

388 shares

Net: +27,838 B/S: ∞

PARTNERS L P/IL BVF

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Value Trading Fund OS LP Biotechnology	3,811,271	0	-
Robert I Blum	407,830	+1,355	1.46
Fady Ibraham Malik	153,902	+15,689	1.42
David Cragg	153,233	0	-
Jeffrey Hessekiel	107,943	+107,943	∞
MARK A SCHLOSSBERG	103,408	0	-
Sung Lee	87,127	+15,498	4.62
JOHN T HENDERSON	75,237	+1,556	1.18
Andrew Callos	74,412	-54,725	0.65
Bradley Paul Morgan	63,107	0	-
Ching Jaw	57,346	0	-
L PATRICK GAGE	51,234	0	-
SHARON SURREY BARBARI	40,323	0	-
Brett A Pletcher	33,140	0	-
WENDELL WIERENGA	32,637	+292	1.01
Caryn Gordon McDowell	32,548	0	-
WENDALL WIERENGA	32,345	+164	∞
ANDREW A WOLFF	32,255	0	-
Nancy Wysenski	31,066	+456	∞
Elisabeth Schnieders	23,919	0	-
Muna Bhanji	23,510	0	-
PETER S RODDY	21,520	0	-
SANTO J COSTA	20,600	0	-
Robert Arthur Harrington	18,930	-3,385	0.21
SANDFORD D SMITH	18,801	0	-
B LYNNE PARSHALL	17,933	-10,000	-
Robert Wong	17,889	0	-
Edward M. MD Kaye	10,365	-42,929	0.25
BONNIE CHARPENTIER	9,004	0	-
Robert E Landry	7,333	0	-
Robert Califf	6,003	0	-
James M Daly	388	+27,838	∞
PARTNERS L P/IL BVF	0	0	-

Individual Transactions

May 01, 2026

Andrew Callos

Open Market Sale

Change: -15,857

Price: $65.00

Shares: 58,555

Value: -$1,030,705

Andrew Callos

Option Exercise/Conversion

Change: +15,857

Price: $37.63

Shares: 74,412

Value: +$596,698

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Andrew Callos	May 04	Open Market Sale (S) Market Sale	58,555	-15,857	$65.00	-$1,030,705
Andrew Callos	May 04	Option Exercise/Conversion (M) Compensation/Award	74,412	+15,857	$37.63	+$596,698

April 29, 2026

Robert I Blum

Open Market Sale

Change: -7,500

Price: $59.62

Shares: 407,830

Value: -$447,150

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Robert I Blum	Apr 29	Open Market Sale (S) Market Sale	407,830	-7,500	$59.62	-$447,150

April 21, 2026

Fady Ibraham Malik

Option Exercise/Conversion

Change: +3,500

Price: $7.80

Shares: 157,402

Value: +$27,300

Fady Ibraham Malik

Open Market Sale

Change: -3,500

Price: $65.69

Shares: 153,902

Value: -$229,915

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Fady Ibraham Malik	Apr 21	Option Exercise/Conversion (M) Compensation/Award	157,402	+3,500	$7.80	+$27,300
Fady Ibraham Malik	Apr 21	Open Market Sale (S) Market Sale	153,902	-3,500	$65.69	-$229,915

April 15, 2026

Robert I Blum

Open Market Sale

Change: -7,500

Price: $65.38

Shares: 415,330

Value: -$490,350

Andrew Callos

Open Market Sale

Change: -7,449

Price: $66.02

Shares: 58,555

Value: -$491,782

James M Daly

Grant/Award Acquisition

Change: +191

Price: $65.37

Shares: 388

Value: +$12,485

Robert Arthur Harrington

Grant/Award Acquisition

Change: +191

Price: $65.37

Shares: 18,930

Value: +$12,485

JOHN T HENDERSON

Grant/Award Acquisition

Change: +325

Price: $65.37

Shares: 75,237

Value: +$21,245

Edward M. MD Kaye

Grant/Award Acquisition

Change: +191

Price: $65.37

Shares: 10,365

Value: +$12,485

WENDELL WIERENGA

Grant/Award Acquisition

Change: +95

Price: $65.37

Shares: 32,637

Value: +$6,210

Nancy Wysenski

Grant/Award Acquisition

Change: +95

Price: $65.37

Shares: 31,066

Value: +$6,210

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Robert I Blum	Apr 15	Open Market Sale (S) Market Sale	415,330	-7,500	$65.38	-$490,350
Andrew Callos	Apr 15	Open Market Sale (S) Market Sale	58,555	-7,449	$66.02	-$491,782
James M Daly	Apr 15	Grant/Award Acquisition (A) Compensation/Award	388	+191	$65.37	+$12,485
Robert Arthur Harrington	Apr 15	Grant/Award Acquisition (A) Compensation/Award	18,930	+191	$65.37	+$12,485
JOHN T HENDERSON	Apr 15	Grant/Award Acquisition (A) Compensation/Award	75,237	+325	$65.37	+$21,245
Edward M. MD Kaye	Apr 15	Grant/Award Acquisition (A) Compensation/Award	10,365	+191	$65.37	+$12,485
WENDELL WIERENGA	Apr 15	Grant/Award Acquisition (A) Compensation/Award	32,637	+95	$65.37	+$6,210
Nancy Wysenski	Apr 15	Grant/Award Acquisition (A) Compensation/Award	31,066	+95	$65.37	+$6,210

April 07, 2026

Fady Ibraham Malik

Open Market Sale

Change: -3,500

Price: $65.21

Shares: 153,902

Value: -$228,235

Fady Ibraham Malik

Option Exercise/Conversion

Change: +3,500

Price: $7.80

Shares: 157,402

Value: +$27,300

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Fady Ibraham Malik	Apr 08	Open Market Sale (S) Market Sale	153,902	-3,500	$65.21	-$228,235
Fady Ibraham Malik	Apr 08	Option Exercise/Conversion (M) Compensation/Award	157,402	+3,500	$7.80	+$27,300

April 01, 2026

Robert I Blum

Open Market Sale

Change: -7,500

Price: $66.63

Shares: 422,830

Value: -$499,725

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Robert I Blum	Apr 01	Open Market Sale (S) Market Sale	422,830	-7,500	$66.63	-$499,725

March 31, 2026

Andrew Callos

Open Market Sale

Change: -3,639

Price: $65.00

Shares: 66,004

Value: -$236,535

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Andrew Callos	Mar 31	Open Market Sale (S) Market Sale	66,004	-3,639	$65.00	-$236,535

March 18, 2026

Andrew Callos

Open Market Sale

Change: -1,930

Price: $62.07

Shares: 78,185

Value: -$119,795

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Andrew Callos	Mar 18	Open Market Sale (S) Market Sale	78,185	-1,930	$62.07	-$119,795

March 17, 2026

Sung Lee

Open Market Sale

Change: -4,935

Price: $62.15

Shares: 87,127

Value: -$306,710

Andrew Callos

Open Market Sale

Change: -5,626

Price: $62.15

Shares: 74,489

Value: -$349,655

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Sung Lee	Mar 18	Open Market Sale (S) Market Sale	87,127	-4,935	$62.15	-$306,710
Andrew Callos	Mar 18	Open Market Sale (S) Market Sale	74,489	-5,626	$62.15	-$349,655