InsiderFlow

MBX Biosciences, Inc. Common Stock

$27.45-0.50 (-1.79%)

Prev Close

$27.95

Open

$27.81

High

$28.99

Low

$26.42

Volume

482.2K

Market Cap

$957.4M

P/E

3.57

Div Yield

Over the past 12 months, insider activity at MBX Biosciences, Inc. Common Stock (MBX) has been exclusively buying, with 4 insider purchases totaling $12.58M and 0 insider sales totaling $0.00. The most recent insider transaction was by Hawryluk P. Kent (President & CEO), who purchased $272.8K worth of shares on Oct 20, 2025. MBX Biosciences, Inc. Common Stock operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $957.4M.

Buys (12M)

4

$12.58M

Sells (12M)

0

$0.00

Net Activity

Net Buyer

$12.58M

Active Insiders

4

last 12 mo

MBX Price Chart

MBX Insider Trading Activity

DateInsiderRoleTypeSharesAvg PriceValueShares After
Oct 20, 2025Hawryluk P. KentPresident & CEOBuy20,000$13.64$272.8K0
Oct 17, 2025Hoerter Steven L.DirectorBuy20,000$13.25$265.0K0
Sep 26, 2025Heron Patrick JDirectorBuy666,666$18.00$12.00M0
Apr 8, 2025Pescovitz Ora H.DirectorBuy7,693$5.89$45.3K0
Feb 19, 2025GORDON CARL LDirectorBuy190,672$10.60$2.02M3,255,000
Feb 19, 2025ORBIMED ADVISORS LLCDirectorBuy190,672$10.60$2.02M3,255,000
Feb 5, 2025Hawryluk P. KentPresident & CEOBuy50,000$10.69$534.5K448,277
Sep 17, 2024Aynechi TibaBuy750,000$16.00$12.00M2,136,340
Sep 17, 2024BASKETT FORESTBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Behbahani AliBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Chang CarmenBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Florence Anthony A. Jr.Buy500,000$16.00$8.00M3,614,490
Sep 17, 2024Frazier Life Sciences X, L.P.Buy625,000$16.00$10.00M4,552,770
Sep 17, 2024GORDON CARL LBuy750,000$16.00$12.00M3,158,430
Sep 17, 2024Heron Patrick JBuy625,000$16.00$10.00M4,552,770
Sep 17, 2024Makhzoumi MohamadBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Mathers Edward TBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024New Enterprise Associates 17, L.P.Buy500,000$16.00$8.00M3,614,490
Sep 17, 2024ORBIMED ADVISORS LLCBuy750,000$16.00$12.00M3,158,430
Sep 17, 2024SANDELL SCOTT DBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Walker Paul EdwardBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Yang RickBuy500,000$16.00$8.00M3,614,490

MBX Insider Buying Activity

The following table shows recent insider purchases of MBX Biosciences, Inc. Common Stock (MBX) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Oct 20, 2025Hawryluk P. KentPresident & CEOBuy20,000$13.64$272.8K0
Oct 17, 2025Hoerter Steven L.DirectorBuy20,000$13.25$265.0K0
Sep 26, 2025Heron Patrick JDirectorBuy666,666$18.00$12.00M0
Apr 8, 2025Pescovitz Ora H.DirectorBuy7,693$5.89$45.3K0
Feb 19, 2025GORDON CARL LDirectorBuy190,672$10.60$2.02M3,255,000
Feb 19, 2025ORBIMED ADVISORS LLCDirectorBuy190,672$10.60$2.02M3,255,000
Feb 5, 2025Hawryluk P. KentPresident & CEOBuy50,000$10.69$534.5K448,277
Sep 17, 2024Aynechi TibaBuy750,000$16.00$12.00M2,136,340
Sep 17, 2024BASKETT FORESTBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Behbahani AliBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Chang CarmenBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Florence Anthony A. Jr.Buy500,000$16.00$8.00M3,614,490
Sep 17, 2024Frazier Life Sciences X, L.P.Buy625,000$16.00$10.00M4,552,770
Sep 17, 2024GORDON CARL LBuy750,000$16.00$12.00M3,158,430
Sep 17, 2024Heron Patrick JBuy625,000$16.00$10.00M4,552,770
Sep 17, 2024Makhzoumi MohamadBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Mathers Edward TBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024New Enterprise Associates 17, L.P.Buy500,000$16.00$8.00M3,614,490
Sep 17, 2024ORBIMED ADVISORS LLCBuy750,000$16.00$12.00M3,158,430
Sep 17, 2024SANDELL SCOTT DBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Walker Paul EdwardBuy500,000$16.00$8.00M3,614,490
Sep 17, 2024Yang RickBuy500,000$16.00$8.00M3,614,490

MBX Insider Selling Activity

The following table shows recent insider sales of MBX Biosciences, Inc. Common Stock (MBX) stock reported via SEC Form 4 filings.

No insider selling activity found for MBX in the last 12 months.

MBX Insiders

Hawryluk P. Kent

President & CEO

Bought $807.3K
2 tradesLast: Oct 20, 2025
Hoerter Steven L.

Director

Bought $265.0K
1 tradesLast: Oct 17, 2025
Heron Patrick J

Director

Bought $12.00M
1 tradesLast: Sep 26, 2025
Pescovitz Ora H.

Director

Bought $45.3K
1 tradesLast: Apr 8, 2025
GORDON CARL L

Director

Bought $2.02M
4 tradesLast: Feb 18, 2025
ORBIMED ADVISORS LLC

Director

Bought $2.02M
4 tradesLast: Feb 18, 2025
Aynechi Tiba

Bought $12.00M
1 tradesLast: Sep 16, 2024
BASKETT FOREST

Bought $8.00M
1 tradesLast: Sep 16, 2024
Behbahani Ali

Bought $8.00M
1 tradesLast: Sep 16, 2024
Chang Carmen

Bought $8.00M
1 tradesLast: Sep 16, 2024
Florence Anthony A. Jr.

Bought $8.00M
1 tradesLast: Sep 16, 2024
Frazier Life Sciences X, L.P.

Bought $10.00M
1 tradesLast: Sep 16, 2024
GORDON CARL L

Bought $12.00M
2 tradesLast: Sep 16, 2024
Heron Patrick J

Bought $10.00M
1 tradesLast: Sep 16, 2024
Makhzoumi Mohamad

Bought $8.00M
1 tradesLast: Sep 16, 2024
Mathers Edward T

Bought $8.00M
1 tradesLast: Sep 16, 2024
New Enterprise Associates 17, L.P.

Bought $8.00M
1 tradesLast: Sep 16, 2024
ORBIMED ADVISORS LLC

Bought $12.00M
2 tradesLast: Sep 16, 2024
SANDELL SCOTT D

Bought $8.00M
1 tradesLast: Sep 16, 2024
Walker Paul Edward

Bought $8.00M
1 tradesLast: Sep 16, 2024
Yang Rick

Bought $8.00M
1 tradesLast: Sep 16, 2024