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$SIBN

$17.82 +$0.06 (0.34%)

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Insider Transactions

Insider Transaction Summary

Venture Partners V LP Skyline

3,819,985 shares

Net: 0 B/S: -

Venture Management V, LLC Skyline

2,819,985 shares

Net: 0 B/S: -

Timothy Petersen

1,695,036 shares

Net: 0 B/S: -

Equity Partners IV, L.P. Montreux

1,102,915 shares

Net: 0 B/S: -

David P Bonita

985,368 shares

Net: 0 B/S: -

ADVISORS LLC ORBIMED

985,368 shares

Net: 0 B/S: -

LAURA FRANCIS

540,476 shares

Net: +80,197 B/S: 3.32

Mark A Reiley

513,180 shares

Net: 0 B/S: -

MICHAEL A. PISETSKY

280,968 shares

Net: +26,029 B/S: 1.8

Michael A Pisetsky

264,768 shares

Net: 0 B/S: -

ANTHONY J RECUPERO

262,376 shares

Net: -9,429 B/S: -

Anshul Maheshwari

260,671 shares

Net: +46,784 B/S: 2.37

Greg K Hinckley

105,135 shares

Net: +3,085 B/S: ∞

GREGORY K HINCKLEY

102,050 shares

Net: 0 B/S: -

Timothy E JR Davis

76,679 shares

Net: +15,741 B/S: 3.16

Keith Valentine

57,209 shares

Net: 0 B/S: -

John Gordon Freund

54,258 shares

Net: -1,175 B/S: 0.9

W Carlton Reckling

44,170 shares

Net: 0 B/S: -

JERYL L HILLEMAN

43,772 shares

Net: +10,957 B/S: ∞

Mika Nishimura

43,673 shares

Net: +6,857 B/S: 2.67

Thomas A. West

37,947 shares

Net: +10,957 B/S: ∞

Heyward R Donigan

26,236 shares

Net: 0 B/S: -

Daniel W Wolf

25,857 shares

Net: 0 B/S: -

Helen Loh

21,637 shares

Net: 0 B/S: -

Karen A Licitra

19,094 shares

Net: 0 B/S: -

JEFFREY W DUNN

16,057 shares

Net: -13,878 B/S: 0.72

Scott A Yerby

9,284 shares

Net: 0 B/S: -

Mark J Foley

8,797 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Venture Partners V LP Skyline	3,819,985	0	-
Venture Management V, LLC Skyline	2,819,985	0	-
Timothy Petersen	1,695,036	0	-
Equity Partners IV, L.P. Montreux	1,102,915	0	-
David P Bonita	985,368	0	-
ADVISORS LLC ORBIMED	985,368	0	-
LAURA FRANCIS	540,476	+80,197	3.32
Mark A Reiley	513,180	0	-
MICHAEL A. PISETSKY	280,968	+26,029	1.8
Michael A Pisetsky	264,768	0	-
ANTHONY J RECUPERO	262,376	-9,429	-
Anshul Maheshwari	260,671	+46,784	2.37
Greg K Hinckley	105,135	+3,085	∞
GREGORY K HINCKLEY	102,050	0	-
Timothy E JR Davis	76,679	+15,741	3.16
Keith Valentine	57,209	0	-
John Gordon Freund	54,258	-1,175	0.9
W Carlton Reckling	44,170	0	-
JERYL L HILLEMAN	43,772	+10,957	∞
Mika Nishimura	43,673	+6,857	2.67
Thomas A. West	37,947	+10,957	∞
Heyward R Donigan	26,236	0	-
Daniel W Wolf	25,857	0	-
Helen Loh	21,637	0	-
Karen A Licitra	19,094	0	-
JEFFREY W DUNN	16,057	-13,878	0.72
Scott A Yerby	9,284	0	-
Mark J Foley	8,797	0	-

Individual Transactions

June 05, 2026

JEFFREY W DUNN

Open Market Sale

Change: -3,575

Price: $15.25

Shares: 16,057

Value: -$54,505

Insider	Filing Date	Transaction	Shares	Change	Price	Value
JEFFREY W DUNN	Jun 08	Open Market Sale (S) Market Sale	16,057	-3,575	$15.25	-$54,505

June 04, 2026

JEFFREY W DUNN

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 20,114

Value: +$0

John Gordon Freund

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 54,258

Value: +$0

Timothy E JR Davis

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 76,679

Value: +$0

Thomas A. West

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 37,947

Value: +$0

Mika Nishimura

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 43,673

Value: +$0

JERYL L HILLEMAN

Grant/Award Acquisition

Change: +10,957

Price: $0.00

Shares: 43,772

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
JEFFREY W DUNN	Jun 08	Grant/Award Acquisition (A) Compensation/Award	20,114	+10,957	$0.00	+$0
John Gordon Freund	Jun 08	Grant/Award Acquisition (A) Compensation/Award	54,258	+10,957	$0.00	+$0
Timothy E JR Davis	Jun 08	Grant/Award Acquisition (A) Compensation/Award	76,679	+10,957	$0.00	+$0
Thomas A. West	Jun 08	Grant/Award Acquisition (A) Compensation/Award	37,947	+10,957	$0.00	+$0
Mika Nishimura	Jun 08	Grant/Award Acquisition (A) Compensation/Award	43,673	+10,957	$0.00	+$0
JERYL L HILLEMAN	Jun 09	Grant/Award Acquisition (A) Compensation/Award	43,772	+10,957	$0.00	+$0

May 29, 2026

Timothy E JR Davis

Open Market Sale

Change: -3,500

Price: $14.14

Shares: 65,722

Value: -$49,487

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Timothy E JR Davis	Jun 01	Open Market Sale (S) Market Sale	65,722	-3,500	$14.14	-$49,487

May 28, 2026

Timothy E JR Davis

Option Exercise/Conversion

Change: +12,064

Price: $4.32

Shares: 73,002

Value: +$52,116

Timothy E JR Davis

Open Market Sale

Change: -3,780

Price: $14.47

Shares: 69,222

Value: -$54,698

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Timothy E JR Davis	Jun 01	Option Exercise/Conversion (M) Compensation/Award	73,002	+12,064	$4.32	+$52,116
Timothy E JR Davis	Jun 01	Open Market Sale (S) Market Sale	69,222	-3,780	$14.47	-$54,698

May 18, 2026

LAURA FRANCIS

Open Market Sale

Change: -3,893

Price: $14.75

Shares: 540,476

Value: -$57,403

MICHAEL A. PISETSKY

Open Market Sale

Change: -1,872

Price: $14.63

Shares: 280,968

Value: -$27,392

Anshul Maheshwari

Open Market Sale

Change: -2,477

Price: $14.71

Shares: 260,671

Value: -$36,444

Insider	Filing Date	Transaction	Shares	Change	Price	Value
LAURA FRANCIS	May 20	Open Market Sale (S) Market Sale	540,476	-3,893	$14.75	-$57,403
MICHAEL A. PISETSKY	May 20	Open Market Sale (S) Market Sale	280,968	-1,872	$14.63	-$27,392
Anshul Maheshwari	May 20	Open Market Sale (S) Market Sale	260,671	-2,477	$14.71	-$36,444

May 04, 2026

JEFFREY W DUNN

Open Market Sale

Change: -337

Price: $13.15

Shares: 9,157

Value: -$4,431

Insider	Filing Date	Transaction	Shares	Change	Price	Value
JEFFREY W DUNN	May 05	Open Market Sale (S) Market Sale	9,157	-337	$13.15	-$4,431

April 07, 2026

Greg K Hinckley

Option Exercise/Conversion

Change: +3,085

Price: $5.94

Shares: 105,135

Value: +$18,324

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Greg K Hinckley	Apr 09	Option Exercise/Conversion (M) Compensation/Award	105,135	+3,085	$5.94	+$18,324

April 02, 2026

MICHAEL A. PISETSKY

Open Market Sale

Change: -1,301

Price: $12.86

Shares: 282,874

Value: -$16,735

Anshul Maheshwari

Open Market Sale

Change: -1,758

Price: $12.92

Shares: 264,708

Value: -$22,718

Insider	Filing Date	Transaction	Shares	Change	Price	Value
MICHAEL A. PISETSKY	Apr 03	Open Market Sale (S) Market Sale	282,874	-1,301	$12.86	-$16,735
Anshul Maheshwari	Apr 03	Open Market Sale (S) Market Sale	264,708	-1,758	$12.92	-$22,718

April 01, 2026

MICHAEL A. PISETSKY

Open Market Sale

Change: -1,799

Price: $12.95

Shares: 284,175

Value: -$23,301

Insider	Filing Date	Transaction	Shares	Change	Price	Value
MICHAEL A. PISETSKY	Apr 03	Open Market Sale (S) Market Sale	284,175	-1,799	$12.95	-$23,301

March 12, 2026

Mika Nishimura

Open Market Sale

Change: -4,100

Price: $13.83

Shares: 32,716

Value: -$56,700

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mika Nishimura	Mar 13	Open Market Sale (S) Market Sale	32,716	-4,100	$13.83	-$56,700

February 17, 2026

Anshul Maheshwari

Open Market Sale

Change: -1,279

Price: $15.35

Shares: 286,715

Value: -$19,632

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Anshul Maheshwari	Feb 18	Open Market Sale (S) Market Sale	286,715	-1,279	$15.35	-$19,632