MTSR Insider Trading

MTSR · full profile →Last filing Nov 13, 2025
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
open market, 180d
Reporting Insiders
0
0 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Nov 13, 2025Stonehouse Jon PDirectorDisposed to issuer(D)3K
Nov 13, 2025Stonehouse Jon PDirectorGrant(A)3K
Nov 13, 2025Stonehouse Jon PDirectorDisposed to issuer(D)48K
Nov 13, 2025Pinto JoshuaDirectorDisposed to issuer(D)3K
Nov 13, 2025Pinto JoshuaDirectorDisposed to issuer(D)16K
Nov 13, 2025Pinto JoshuaDirectorGrant(A)3K
Nov 13, 2025Pinto JoshuaDirectorDisposed to issuer(D)149K
Nov 13, 2025ARCH Venture Partners XII, LLCDirector, 10% OwnerDisposed to issuer(D)8.3M
Nov 13, 2025ARCH Venture Partners XII, LLCDirector, 10% OwnerDisposed to issuer(D)18.5M
Nov 13, 2025Bernard Christopher WhittenSee Remarks, DirectorDisposed to issuer(D)12.8M
Nov 13, 2025Bernard Christopher WhittenSee Remarks, DirectorDisposed to issuer(D)21K
Nov 13, 2025Bernard Christopher WhittenSee Remarks, DirectorGrant(A)21K
Nov 13, 2025Bernard Christopher WhittenSee Remarks, DirectorDisposed to issuer(D)349K
Nov 13, 2025Bernard Christopher WhittenSee Remarks, DirectorDisposed to issuer(D)1.7M
Nov 13, 2025Meanwell CliveEXECUTIVE CHAIRMAN, DirectorDisposed to issuer(D)12.8M
Nov 13, 2025Meanwell CliveEXECUTIVE CHAIRMAN, DirectorDisposed to issuer(D)5K
Nov 13, 2025Meanwell CliveEXECUTIVE CHAIRMAN, DirectorDisposed to issuer(D)32K
Nov 13, 2025Meanwell CliveEXECUTIVE CHAIRMAN, DirectorGrant(A)5K
Nov 13, 2025Meanwell CliveEXECUTIVE CHAIRMAN, DirectorDisposed to issuer(D)298K
Nov 13, 2025Visioli ChristopherCHIEF FINANCIAL OFFICERDisposed to issuer(D)21K
Nov 13, 2025Visioli ChristopherCHIEF FINANCIAL OFFICERGrant(A)21K
Nov 13, 2025Visioli ChristopherCHIEF FINANCIAL OFFICERDisposed to issuer(D)150K
Nov 13, 2025Visioli ChristopherCHIEF FINANCIAL OFFICERDisposed to issuer(D)340K
Nov 13, 2025Visioli ChristopherCHIEF FINANCIAL OFFICERDisposed to issuer(D)255K
Nov 13, 2025Hubbard BrianCHIEF SCIENTIFIC OFFICERDisposed to issuer(D)17K
Nov 13, 2025Hubbard BrianCHIEF SCIENTIFIC OFFICERDisposed to issuer(D)106K
Nov 13, 2025Hubbard BrianCHIEF SCIENTIFIC OFFICERDisposed to issuer(D)120K
Nov 13, 2025Hubbard BrianCHIEF SCIENTIFIC OFFICERGrant(A)17K
Nov 13, 2025Hubbard BrianCHIEF SCIENTIFIC OFFICERDisposed to issuer(D)319K
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)18.5M
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)7.5M
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)8.3M
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)17.1M
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)3K
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)16K
Nov 13, 2025Burow KristinaDirectorGrant(A)3K
Nov 13, 2025Burow KristinaDirectorDisposed to issuer(D)149K
Nov 13, 2025Population Health Partners GP, LLC10% OwnerDisposed to issuer(D)12.6M
Nov 13, 2025Population Health Partners GP, LLC10% OwnerDisposed to issuer(D)128K
Nov 13, 2025Lang MatthewCHIEF LEGAL OFFICERDisposed to issuer(D)13K
Nov 13, 2025Lang MatthewCHIEF LEGAL OFFICERDisposed to issuer(D)325K
Nov 13, 2025Lang MatthewCHIEF LEGAL OFFICERGrant(A)13K
Nov 13, 2025Lang MatthewCHIEF LEGAL OFFICERDisposed to issuer(D)47K
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)958K
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)7.5M
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)4K
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)8.3M
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)223K
Nov 13, 2025Berns Paul LDirectorDisposed to issuer(D)24K
Nov 13, 2025Berns Paul LDirectorGrant(A)4K
Nov 13, 2025Marso StevenCHIEF MEDICAL OFFICERDisposed to issuer(D)17K
Nov 13, 2025Marso StevenCHIEF MEDICAL OFFICERDisposed to issuer(D)120K
Nov 13, 2025Marso StevenCHIEF MEDICAL OFFICERDisposed to issuer(D)21K
Nov 13, 2025Marso StevenCHIEF MEDICAL OFFICERDisposed to issuer(D)830K
Nov 13, 2025Marso StevenCHIEF MEDICAL OFFICERGrant(A)17K
Nov 13, 2025FMR LLC10% OwnerOther(J)3K
Nov 13, 2025FMR LLC10% OwnerOther(J)2.2M
Nov 11, 2025Validae Health, L.P.10% OwnerOther(J)12.8M$0
Nov 10, 2025FMR LLC10% OwnerGift(G)861K$0
Nov 3, 2025FMR LLC10% OwnerOther(J)48K$0
Nov 3, 2025FMR LLC10% OwnerSell(S)193$61.23$12K
Nov 3, 2025FMR LLC10% OwnerOther(J)2.6M$0
Nov 3, 2025FMR LLC10% OwnerOther(J)3.2M$0
Nov 3, 2025FMR LLC10% OwnerOther(J)2.4M$0
Nov 3, 2025FMR LLC10% OwnerOther(J)48K$0
Nov 3, 2025FMR LLC10% OwnerOther(J)2K$0
Nov 3, 2025FMR LLC10% OwnerOther(J)2.4M$0
Oct 6, 2025FMR LLC10% OwnerGift(G)634K$0
Sep 2, 2025FMR LLC10% OwnerOther(J)1.1M$0
May 22, 2025Pinto JoshuaDirectorGift(G)149K$0
May 22, 2025Pinto JoshuaDirectorGift(G)149K$0
May 20, 2025Marso StevenChief Medical OfficerGrant(A)120K$0
May 20, 2025Hubbard BrianChief Scientific OfficerGrant(A)120K$0
May 20, 2025Berns Paul LDirectorGrant(A)24K$0
May 20, 2025Bernard Christopher WhittenPresident and CEO, DirectorGrant(A)349K$0
May 20, 2025Lang MatthewChief Legal OfficerGrant(A)47K$0
May 20, 2025Visioli ChristopherChief Financial OfficerGrant(A)150K$0
May 20, 2025Burow KristinaDirectorGrant(A)16K$0
May 20, 2025Meanwell CliveExecutive Chairman, DirectorGrant(A)32K$0
May 20, 2025Pinto JoshuaDirectorGrant(A)16K$0
Apr 28, 2025Stonehouse Jon PDirectorGrant(A)48K$19.81$946K
Feb 3, 2025Gillis Steven10% OwnerConversion(C)16.0M
Feb 3, 2025Gillis Steven10% OwnerBuy(P)790K$18.00$14.2M
Feb 3, 2025Gillis Steven10% OwnerBuy(P)1.4M$18.00$25.8M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)7.5M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)2.7M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)15.0M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)2.7M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)15.0M
Feb 3, 2025Gillis Steven10% OwnerConversion(C)19.9M
Feb 3, 2025Berns Paul LDirectorBuy(P)790K$18.00$14.2M
Feb 3, 2025Berns Paul LDirectorConversion(C)7.5M
Feb 3, 2025Berns Paul LDirectorConversion(C)15.0M
Feb 3, 2025Berns Paul LDirectorConversion(C)2.7M
Feb 3, 2025Burow KristinaDirector, 10% OwnerConversion(C)16.0M
Feb 3, 2025Burow KristinaDirector, 10% OwnerBuy(P)1.4M$18.00$25.8M
Feb 3, 2025Burow KristinaDirector, 10% OwnerConversion(C)7.5M
Feb 3, 2025Burow KristinaDirector, 10% OwnerBuy(P)790K$18.00$14.2M
Feb 3, 2025Burow KristinaDirector, 10% OwnerConversion(C)2.7M
Feb 3, 2025Burow KristinaDirector, 10% OwnerConversion(C)15.0M

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).