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MBX Biosciences, Inc.

MBX Net buying

CIK 0001776111 #1706 in the set updated 17 Sep 2026

Bought (12 mo)

$13.06M

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$2.73M

$0.00 on a plan · $2.69M straight out of an exercise

Sold at will

$49.09K

3 of 5 sales

Net

+$10.33M

+$13.01M against sales at will

By person

9 insiders · 11 transactions

127×

P. Kent Hawryluk holds 127 times base salary in stock. $79.87M of shares against $625.00K in salary for 2025.

Salary from the company's own proxy. The shares are what P. Kent Hawryluk last reported holding, valued at $65.77, the price Common Stock was last bought or sold at on the open market here, on 4 Aug 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Heron Patrick J

Director

$12.00M (1)

—

+$12.00M

5,219,440

10.84%

$343.28M

+14.6%

Azoulay Salomon

Chief Medical Officer

—

$2.72M (4) scheduled

−$2.72M

14,399

0.0299%

$947.02K

—

Hawryluk P. Kent

President & CEO

$798.45K (2)

$17.93K (1)

+$780.52K

1,214,444

2.52%

$79.87M

+38.1%

Hoerter Steven L.

President and CEO

$264.98K (1)

—

+$264.98K

102,938

0.2137%

$6.77M

—

ORBIMED ADVISORS LLC entity

Director

—

747,887

1.55%

$49.19M

+34.2%

GORDON CARL L

Director

—

747,887

1.55%

$49.19M

+34.2%

Smither John W

Chief Financial Officer

—

28,000

0.0581%

$1.84M

—

Pescovitz Ora H.

Director

—

24,329

0.0505%

$1.60M

+46.2%

Bartram Richard

Chief Financial Officer

—

15,000

0.0311%

$986.55K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Azoulay Salomon

4 Aug 2026

Chief Medical Officer

Sell

370

$65.77

$24.33K

Hawryluk P. Kent

6 May 2026

President & CEO

Sell

607

$29.54

$17.93K

Azoulay Salomon

6 May 2026

Chief Medical Officer

Sell

231

$29.54

$6.82K

Show all 11 transactions →

What was left out

Form 4 filings counted 26

Amendments (4/A) skipped 2

Filings about a different issuer 0

Unreadable filings 0

Joint filings 1

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 2

Sales at will 3

Transactions with no price 0

Shares from compensation/vesting 457,818

History held since 13 Sep 2024