CHRS Insider Trading

CHRS · full profile →Last filing Jun 5, 2026
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
Jun 5, 2026Karachun Rita ADirectorGrant(A)30K$0
Jun 5, 2026Karachun Rita ADirectorGrant(A)60K$0
Jun 5, 2026Newcomer Lee NisleyDirectorGrant(A)30K$0
Jun 5, 2026Newcomer Lee NisleyDirectorGrant(A)60K$0
Jun 5, 2026O'Donnell-Tormey JillDirectorGrant(A)30K$0
Jun 5, 2026O'Donnell-Tormey JillDirectorGrant(A)60K$0
Jun 5, 2026Newton Charles W.DirectorGrant(A)30K$0
Jun 5, 2026Newton Charles W.DirectorGrant(A)60K$0
Jun 5, 2026Ryan Michael LeeDirectorGrant(A)30K$0
Jun 5, 2026Ryan Michael LeeDirectorGrant(A)60K$0
Jun 5, 2026Wahlstrom MatsDirectorGrant(A)30K$0
Jun 5, 2026Wahlstrom MatsDirectorGrant(A)60K$0
Jun 5, 2026Satvat Ali J.DirectorGrant(A)30K$0
Jun 5, 2026Satvat Ali J.DirectorGrant(A)60K$0
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)100K
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)25K
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)15K
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)25K
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)25K
May 29, 2026McMichael Bryan JChief Financial OfficerDisposed to issuer(D)30K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)100K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)25K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)15K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)25K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)25K
May 29, 2026McMichael Bryan JChief Financial OfficerGrant(A)30K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)200K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)400K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)450K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)500K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)500K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)125K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)403K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)403K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorDisposed to issuer(D)225K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)200K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)400K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)450K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)500K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)500K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)125K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)403K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)403K
May 29, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)225K
Jan 23, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)375K$0
Jan 23, 2026Lanfear Dennis MPresident & CEO, DirectorGrant(A)750K$0
Jan 22, 2026McMichael Bryan JChief Financial OfficerGrant(A)113K$0
Jan 22, 2026McMichael Bryan JChief Financial OfficerGrant(A)225K$0
Jan 20, 2026Lanfear Dennis MPresident & CEO, DirectorTax withholding(F)12K$1.55$18K
Jan 20, 2026McMichael Bryan JChief Financial OfficerTax withholding(F)2K$1.55$3K
Jun 12, 2025Satvat Ali J.DirectorGrant(A)112K$0
Jun 12, 2025Newton Charles W.DirectorGrant(A)112K$0
Jun 12, 2025Erbez GeorgiaDirectorGrant(A)112K$0
Jun 12, 2025Karachun Rita ADirectorGrant(A)112K$0
Jun 12, 2025Ryan Michael LeeDirectorGrant(A)112K$0
Jun 12, 2025Wahlstrom MatsDirectorGrant(A)112K$0
Jun 12, 2025Newcomer Lee NisleyDirectorGrant(A)112K$0
Jun 12, 2025O'Donnell-Tormey JillDirectorGrant(A)112K$0
May 23, 2025Wahlstrom MatsDirectorSell(S)100K$0.74$74K
May 7, 2025Lanfear Dennis MPresident & CEO, DirectorGrant(A)375K$0
May 7, 2025McMichael Bryan JChief Financial OfficerGrant(A)200K$0
Jan 20, 2025Lanfear Dennis MPresident & CEO, DirectorTax withholding(F)12K$1.39$16K
Jan 20, 2025Reider PaulChief Commercial OfficerTax withholding(F)5K$1.39$7K
Jan 20, 2025McMichael Bryan JChief Financial OfficerTax withholding(F)2K$1.39$2K
Jan 10, 2025Lanfear Dennis MPresident & CEO, DirectorGrant(A)575K$0
Jan 7, 2025McMichael Bryan JChief Financial OfficerTax withholding(F)2K$1.57$3K
Jan 4, 2025Reider PaulChief Commercial OfficerTax withholding(F)2K$1.66$4K
Jan 4, 2025Lanfear Dennis MPresident & CEO, DirectorTax withholding(F)12K$1.66$20K
Jan 3, 2025Reider PaulChief Commercial OfficerGrant(A)160K$0
Jan 3, 2025McMichael Bryan JChief Financial OfficerGrant(A)160K$0
Dec 13, 2024Reider PaulChief Commercial OfficerTax withholding(F)2K$1.61$3K
Aug 7, 2024McMichael Bryan JChief Financial OfficerGrant(A)75K$0
Jul 22, 2024Reider PaulChief Commercial OfficerGrant(A)40K$0
Jul 22, 2024Lanfear Dennis MPresident & CEO, DirectorGrant(A)197K$0
Jun 4, 2024Erbez GeorgiaDirectorGrant(A)114K$0
Jun 4, 2024Karachun Rita ADirectorGrant(A)168K$0
Jun 3, 2024O'Donnell-Tormey JillDirectorGrant(A)112K$0
Jun 3, 2024Tzoumakas Kimberly JoDirectorGrant(A)112K$0
Jun 3, 2024Newcomer Lee NisleyDirectorGrant(A)112K$0
Jun 3, 2024Stolper MarkDirectorGrant(A)112K$0
Jun 3, 2024Wahlstrom MatsDirectorGrant(A)112K$0
Jun 3, 2024Ryan Michael LeeDirectorGrant(A)112K$0
Jun 3, 2024Newton Charles W.DirectorGrant(A)112K$0
Feb 20, 2024Erbez GeorgiaDirectorGrant(A)54K$0
Feb 9, 2024Wahlstrom MatsDirectorGift(G)100K$0
Feb 9, 2024Wahlstrom MatsDirectorGift(G)100K$0
Feb 1, 2024Wahlstrom MatsDirectorOption exercise(M)15K$1.67$25K
Feb 1, 2024Wahlstrom MatsDirectorOption exercise(M)45K$1.67$75K
Feb 1, 2024Wahlstrom MatsDirectorOption exercise(M)45K$0
Feb 1, 2024Wahlstrom MatsDirectorOption exercise(M)15K$0
Jan 20, 2024McMichael Bryan JSee RemarksTax withholding(F)2K$2.44$4K
Jan 20, 2024Reider PaulChief Commercial OfficerTax withholding(F)5K$2.44$12K
Jan 20, 2024Lanfear Dennis MPresident & CEO, DirectorTax withholding(F)11K$2.44$27K
Jan 7, 2024McMichael Bryan JSee RemarksTax withholding(F)2K$2.87$5K
Jan 5, 2024Lanfear Dennis MPresident & CEO, DirectorGrant(A)575K$0
Jan 4, 2024Reider PaulChief Commercial OfficerTax withholding(F)2K$2.92$7K
Jan 4, 2024Lanfear Dennis MPresident & CEO, DirectorTax withholding(F)12K$2.92$34K
Jan 2, 2024Reider PaulChief Commercial OfficerGrant(A)160K$0
Jan 2, 2024McMichael Bryan JSee RemarksGrant(A)125K$0
Dec 31, 2023Stilwell McDavidChief Financial OfficerTax withholding(F)18K$3.33$61K

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 2021-01-042026-07-21. Earlier history is backfilling; this window widens as it deepens.

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