.406 Ventures

Marin Lang


Senior Associate

Marin joined .406 Ventures in 2025 as a Senior Associate with several years of finance and investing experience across the healthcare industry.  

Before .406, Marin was an Associate on the healthcare investment team at Arsenal Capital Partners, where she invested in tech-enabled businesses working to transform revenue cycle management, autism therapy, and drug development. Prior to this, Marin worked at Morgan Stanley on the Healthcare Investment Banking team.  

Having been a patient at both Boston Children’s Hospital and Massachusetts General Hospital, Marin has been deeply connected to the Boston healthcare system. As a result, she has developed a personal passion for healthcare and improving access to care for all. 

Originally from Weston, MA, Marin has spent much of her life in Boston and enjoys spending time with family and friends, trying new workout classes, and watching the latest tv shows.  

Marin received a BA in Social Studies with a focus on access to healthcare, from Harvard College.  

 

Meet More of the .406 Team

  • How I want entrepreneurs to perceive me

    As someone they can turn to and rely on for any questions they have.

  • After work I’ll be

    At Solidcore or on the couch watching tv.

  • Favorite book

    The Nightingale by Kristin Hannah – or any WWII historical fiction.

  • Favorite destination

    Nantucket.

  • What you’ll find me drinking

    Coffee.

  • Something I say all the time

    Sorry. Trying to break the habit, though!

  • Favorite movie

    I’m a Hunger Games fanatic. I can recite all the movies.

  • Best part of the day

    Sunset – preferably from a beach but a city view will do as well.

  • Grew up in

    Weston, MA.

  • I can’t live without my

    Sound machine.

  • I can’t stop eating

    Any roasted vegetables.

  • Most fun I have ever had

    Sledding with my cousins during a Boston blizzard.

  • In a past life I

    Should have been a doctor.

  • Favorite music

    Taylor Swift (surprising, I know).

  • First thing you do when you get up

    Trying to drink a glass of water right away…if I forget, coffee first.

  • Still on your bucket list

    Japan, Croatia, South Africa, Australia, Ireland.

  • You are most proud of

    Being the oldest sister to my four siblings.

  • Item you have to have on an airplane

    A full water bottle.