ARCH Venture Partners XII, LLC bought MTSR

February 3, 2025 · Form 4 insider transaction

ARCH Venture Partners XII, LLC bought 1,432,224 shares of MTSR at $18.00 per share, a transaction worth $25.78M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 0 days after the transaction.

Direction
Acquired (buy-side)
Shares
1,432,224
Price
$18.00
Total value
$25.78M
Role10% owner
CompanyMTSR
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateFebruary 3, 2025
Filing dateFebruary 3, 2025
Shares owned after18,503,128
OwnershipIndirect
10b5-1 planNo
AmendedNo

Footnotes

Represents shares held directly by ARCH Venture Fund XII, L.P ("ARCH Venture Fund XII"). ARCH Venture Partners XII, L.P. ("AVP XII LP"), as the sole general partner of ARCH Venture Fund XII, may be deemed to beneficially own the shares held by ARCH Venture Fund XII. ARCH Venture Partners XII, LLC ("AVP XII LLC"), as the sole general partner of AVP XII LP, may be deemed to beneficially own the shares held by ARCH Venture Fund XII. AVP XII LP and AVP XII LLC disclaim beneficial ownership except to the extent of any pecuniary interest therein. As members of the investment committee of AVP XII LLC, each of Kristina M. Burow, Keith Crandell, Steven Gillis and Robert Nelsen (the "AVP XII Committee Members") may also be deemed to share the power to direct the disposition and vote of the ARCH Venture Fund XII shares. Each AVP XII Committee Member disclaims beneficial ownership except to the extent of any pecuniary interest therein.

View the original Form 4 on SEC EDGAR