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$MBX

$30.25 +$0.20 (0.67%)

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Insider Transactions

Insider Transaction Summary

James N Topper

5,219,440 shares

Net: +666,666 B/S: ∞

ADVISORS LLC ORBIMED

3,255,000 shares

Net: 0 B/S: -

CARL L GORDON

3,255,000 shares

Net: 0 B/S: -

P. Kent Hawryluk

486,777 shares

Net: +285,377 B/S: ∞

Laurie Stelzer

32,000 shares

Net: +32,000 B/S: ∞

Tiba Aynechi

16,000 shares

Net: 0 B/S: -

Patrick J Heron

16,000 shares

Net: 0 B/S: -

Ora H. Pescovitz

16,000 shares

Net: 0 B/S: -

JAMES M CORNELIUS

16,000 shares

Net: 0 B/S: -

Edward T Mathers

16,000 shares

Net: 0 B/S: -

Steven Ryder

16,000 shares

Net: 0 B/S: -

Salomon Azoulay

15,000 shares

Net: +15,000 B/S: ∞

Richard Bartram

15,000 shares

Net: +15,000 B/S: ∞

Steven L. Hoerter

11,938 shares

Net: +173,689 B/S: ∞

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
James N Topper	5,219,440	+666,666	∞
ADVISORS LLC ORBIMED	3,255,000	0	-
CARL L GORDON	3,255,000	0	-
P. Kent Hawryluk	486,777	+285,377	∞
Laurie Stelzer	32,000	+32,000	∞
Tiba Aynechi	16,000	0	-
Patrick J Heron	16,000	0	-
Ora H. Pescovitz	16,000	0	-
JAMES M CORNELIUS	16,000	0	-
Edward T Mathers	16,000	0	-
Steven Ryder	16,000	0	-
Salomon Azoulay	15,000	+15,000	∞
Richard Bartram	15,000	+15,000	∞
Steven L. Hoerter	11,938	+173,689	∞

Individual Transactions

May 01, 2026

Steven L. Hoerter

Grant/Award Acquisition

Change: +11,938

Price: $0.00

Shares: 11,938

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Steven L. Hoerter	May 04	Grant/Award Acquisition (A) Compensation/Award	11,938	+11,938	$0.00	+$0

March 13, 2026

P. Kent Hawryluk

Open Market Purchase

Change: +18,500

Price: $28.41

Shares: 486,777

Value: +$525,662

Insider	Filing Date	Transaction	Shares	Change	Price	Value
P. Kent Hawryluk	Mar 16	Open Market Purchase (P) Market Purchase	486,777	+18,500	$28.41	+$525,662

February 26, 2026

P. Kent Hawryluk

Option Exercise/Conversion

Change: +28,768

Price: $16.00

Shares: 728,274

Value: +$460,288

Insider	Filing Date	Transaction	Shares	Change	Price	Value
P. Kent Hawryluk	Feb 27	Option Exercise/Conversion (M) Compensation/Award	728,274	+28,768	$16.00	+$460,288

February 02, 2026

Salomon Azoulay

Grant/Award Acquisition

Change: +15,000

Price: $0.00

Shares: 15,000

Value: +$0

Richard Bartram

Grant/Award Acquisition

Change: +15,000

Price: $0.00

Shares: 15,000

Value: +$0

P. Kent Hawryluk

Grant/Award Acquisition

Change: +35,250

Price: $0.00

Shares: 699,506

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Salomon Azoulay	Feb 03	Grant/Award Acquisition (A) Compensation/Award	15,000	+15,000	$0.00	+$0
Richard Bartram	Feb 03	Grant/Award Acquisition (A) Compensation/Award	15,000	+15,000	$0.00	+$0
P. Kent Hawryluk	Feb 03	Grant/Award Acquisition (A) Compensation/Award	699,506	+35,250	$0.00	+$0

January 20, 2026

Laurie Stelzer

Grant/Award Acquisition

Change: +32,000

Price: $0.00

Shares: 32,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Laurie Stelzer	Jan 22	Grant/Award Acquisition (A) Compensation/Award	32,000	+32,000	$0.00	+$0

November 22, 2025

Steven L. Hoerter

Grant/Award Acquisition

Change: 0

Price: $0.00

Shares: 0

Value: -$0

Steven L. Hoerter

Grant/Award Acquisition

Change: +8,000

Price: $0.00

Shares: 8,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Steven L. Hoerter	Apr 22	Grant/Award Acquisition (A) Compensation/Award	0	0	$0.00	-$0
Steven L. Hoerter	Nov 25	Grant/Award Acquisition (A) Compensation/Award	8,000	+8,000	$0.00	+$0

November 06, 2025

Steven L. Hoerter

Grant/Award Acquisition

Change: +33,751

Price: $0.00

Shares: 33,751

Value: +$0

Steven L. Hoerter

Grant/Award Acquisition

Change: +100,000

Price: $0.00

Shares: 100,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Steven L. Hoerter	Apr 22	Grant/Award Acquisition (A) Compensation/Award	33,751	+33,751	$0.00	+$0
Steven L. Hoerter	Nov 07	Grant/Award Acquisition (A) Compensation/Award	100,000	+100,000	$0.00	+$0

October 24, 2025

P. Kent Hawryluk

Option Exercise/Conversion

Change: +182,859

Price: $3.25

Shares: 664,256

Value: +$594,291

Insider	Filing Date	Transaction	Shares	Change	Price	Value
P. Kent Hawryluk	Oct 28	Option Exercise/Conversion (M) Compensation/Award	664,256	+182,859	$3.25	+$594,291

October 20, 2025

P. Kent Hawryluk

Open Market Purchase

Change: +20,000

Price: $13.64

Shares: 468,277

Value: +$272,790

Insider	Filing Date	Transaction	Shares	Change	Price	Value
P. Kent Hawryluk	Oct 21	Open Market Purchase (P) Market Purchase	468,277	+20,000	$13.64	+$272,790

October 17, 2025

Steven L. Hoerter

Open Market Purchase

Change: +20,000

Price: $13.25

Shares: 20,000

Value: +$264,984

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Steven L. Hoerter	Oct 20	Open Market Purchase (P) Market Purchase	20,000	+20,000	$13.25	+$264,984

September 26, 2025

James N Topper

Open Market Purchase

Change: +666,666

Price: $18.00

Shares: 5,219,440

Value: +$11,999,988

Insider	Filing Date	Transaction	Shares	Change	Price	Value
James N Topper	Sep 30	Open Market Purchase (P) Market Purchase	5,219,440	+666,666	$18.00	+$11,999,988

June 05, 2025

Steven Ryder

Grant/Award Acquisition

Change: +16,000

Price: $0.00

Shares: 16,000

Value: +$0

Tiba Aynechi

Grant/Award Acquisition

Change: +16,000

Price: $0.00

Shares: 16,000

Value: +$0

Steven L. Hoerter

Grant/Award Acquisition

Change: +16,000

Price: $0.00

Shares: 16,000

Value: +$0

Ora H. Pescovitz

Grant/Award Acquisition

Change: +16,000

Price: $0.00

Shares: 16,000

Value: +$0

Patrick J Heron

Grant/Award Acquisition

Change: +16,000

Price: $0.00

Shares: 16,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Steven Ryder	Jun 06	Grant/Award Acquisition (A) Compensation/Award	16,000	+16,000	$0.00	+$0
Tiba Aynechi	Jun 06	Grant/Award Acquisition (A) Compensation/Award	16,000	+16,000	$0.00	+$0
Steven L. Hoerter	Jun 06	Grant/Award Acquisition (A) Compensation/Award	16,000	+16,000	$0.00	+$0
Ora H. Pescovitz	Jun 06	Grant/Award Acquisition (A) Compensation/Award	16,000	+16,000	$0.00	+$0
Patrick J Heron	Jun 06	Grant/Award Acquisition (A) Compensation/Award	16,000	+16,000	$0.00	+$0