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Stockfacts

EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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Insider Trades & Whales

Insider trades are parsed from SEC Form 4 filings (first-party). The ownership breakdown below is computed first-hand from SEC 13F-HR + Form 4 (institutions from 13F, insiders from Form 4). For the full filer list and quarter-over-quarter position changes, see the Institutional (13F) tab.

Ownership Breakdown

Insiders 11.51%Institutions 34.64%45 filers

Top Institutions

Form 4 Transactions

50 most recent
DateInsiderTitleCodeSharesPriceValue
Jul 24, 2026Kollender Richard SDirectorM1,827$0.0000$0.00
Jul 24, 2026Kollender Richard SDirectorM1,681$0.0000$0.00
Jul 24, 2026Kollender Richard SDirectorM1,827$0.7500$1.37K
Jul 24, 2026Kollender Richard SDirectorM1,681$0.7500$1.26K
Jul 22, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOM1,402$0.0000$0.00
Jul 22, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOM1,402$0.7500$1.05K
May 29, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOA12,787$0.0000$0.00
May 29, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOA12,787$0.0000$0.00
May 29, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOA12,787$1.9550$25.00K
May 29, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERA12,787$0.0000$0.00
May 29, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERA12,787$0.0000$0.00
May 29, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERA12,787$1.9550$25.00K
May 29, 2026Malloy KirkDirectorA12,787$0.0000$0.00
May 29, 2026Malloy KirkDirectorA12,787$0.0000$0.00
May 29, 2026Malloy KirkDirectorA12,787$1.9550$25.00K
May 29, 2026PEI MELINDA LITHERLANDDirectorA12,787$0.0000$0.00
May 29, 2026PEI MELINDA LITHERLANDDirectorA12,787$0.0000$0.00
May 29, 2026PEI MELINDA LITHERLANDDirectorA12,787$1.9550$25.00K
May 29, 2026LOWENSTEIN INESEDirectorA12,787$0.0000$0.00
May 29, 2026LOWENSTEIN INESEDirectorA12,787$0.0000$0.00
May 29, 2026LOWENSTEIN INESEDirectorA12,787$1.9550$25.00K
May 21, 2026Bika DafniDirectorA38,700$0.0000$0.00
May 21, 2026Bika DafniDirectorA19,300$0.0000$0.00
May 21, 2026Kollender Richard SDirectorA38,700$0.0000$0.00
May 21, 2026Kollender Richard SDirectorA19,300$0.0000$0.00
May 21, 2026PEI MELINDA LITHERLANDDirectorA38,700$0.0000$0.00
May 21, 2026PEI MELINDA LITHERLANDDirectorA19,300$0.0000$0.00
May 21, 2026LOWENSTEIN INESEDirectorA38,700$0.0000$0.00
May 21, 2026LOWENSTEIN INESEDirectorA19,300$0.0000$0.00
May 21, 2026Malloy KirkDirectorA38,700$0.0000$0.00
May 21, 2026Malloy KirkDirectorA19,300$0.0000$0.00
May 20, 2026Bain Capital Life Sciences Investors, LLC10% OwnerP1,463,000––
May 20, 2026Bain Capital Life Sciences Investors, LLC10% OwnerP1,463,000––
May 20, 2026Bain Capital Life Sciences Investors, LLC10% OwnerP1,463,000––
Mar 11, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERS7,480$4.3181$32.30K
Mar 11, 2026Wilson John J. AddingtonCHIEF OPERATING OFFICERS9,603$4.3181$41.47K
Mar 10, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOS17,922$4.1115$73.69K
Feb 27, 2026RICCIARDI NATALE SDirectorM842$0.7500$631.00
Feb 27, 2026RICCIARDI NATALE SDirectorM842$0.7500$631.00
Feb 20, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERS17,254$3.9230$67.69K
Feb 20, 2026Wilson John J. AddingtonCHIEF OPERATING OFFICERS5,403$3.9230$21.20K
Feb 19, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOS38,327$3.8853$148.91K
Feb 11, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOA528,000$0.0000$0.00
Feb 11, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOA264,000$0.0000$0.00
Feb 11, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERA193,000$0.0000$0.00
Feb 11, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERA97,000$0.0000$0.00
Feb 11, 2026Wilson John J. AddingtonCHIEF OPERATING OFFICERA147,000$0.0000$0.00
Feb 11, 2026Wilson John J. AddingtonCHIEF OPERATING OFFICERA74,000$0.0000$0.00
Feb 9, 2026Spignesi Robert G. Jr.PRESIDENT AND CEOS12,840$3.7827$48.57K
Feb 9, 2026WIRTJES SEAN MCHIEF FINANCIAL OFFICERS6,027$3.7827$22.80K