CTSO Insider Trading

Net Buying · 180d
Open-Market Buys (180d)
$149K
2 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$149K
open market, 180d
Reporting Insiders
2
3 P/S transactions
Build

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 15, 2026Chan Phillip P.Chief Executive Officer, DirectorBuy(P)10K$0.43$4K
Jun 15, 2026Mariani Peter JChief Financial OfficerBuy(P)100K$0.44$44K
Jun 12, 2026Chan Phillip P.Chief Executive Officer, DirectorBuy(P)251K$0.40$100K
Nov 18, 2025Chan Phillip P.Chief Executive Officer, DirectorGrant(A)100K$0.64$64K
Aug 8, 2025Sobel Alan D.DirectorGrant(A)22K$0
Aug 8, 2025Deliargyris EfthymiosChief Medical OfficerGrant(A)70K$0
Aug 8, 2025Deliargyris EfthymiosChief Medical OfficerGrant(A)95K$0
Aug 8, 2025Capponi VincentPresident and COOGrant(A)89K$0
Aug 8, 2025Capponi VincentPresident and COOGrant(A)111K$0
Aug 8, 2025Kim JinyDirectorGrant(A)22K$0
Aug 8, 2025Mariani Peter JChief Financial OfficerGrant(A)72K$0
Aug 8, 2025Mariani Peter JChief Financial OfficerGrant(A)90K$0
Aug 8, 2025Bator Michael G.DirectorGrant(A)44K$0
Aug 8, 2025Jones Edward RaymondDirectorGrant(A)22K$0
Aug 8, 2025Chan Phillip P.Chief Executive Officer, DirectorGrant(A)106K$0
Aug 8, 2025Chan Phillip P.Chief Executive Officer, DirectorGrant(A)136K$0
Feb 24, 2025Sobel Alan D.DirectorOption exercise(O)22K$1.13$25K
Feb 24, 2025Sobel Alan D.DirectorOption exercise(O)22K$1.13$25K
Feb 24, 2025Chan Phillip P.Chief Executive Officer, DirectorOption exercise(O)34K$1.13$39K
Feb 24, 2025Chan Phillip P.Chief Executive Officer, DirectorOption exercise(O)34K$1.13$39K
Feb 24, 2025Mariani Peter JChief Financial OfficerOption exercise(O)33K$1.13$37K
Feb 24, 2025Mariani Peter JChief Financial OfficerOption exercise(O)33K$1.13$37K
Feb 24, 2025Capponi VincentPresident and COOOption exercise(O)12K$1.13$14K
Feb 24, 2025Capponi VincentPresident and COOOption exercise(O)12K$1.13$14K
Feb 24, 2025Bator Michael G.DirectorOption exercise(O)10K$1.13$11K
Feb 24, 2025Bator Michael G.DirectorOption exercise(O)16K$1.13$18K
Jan 17, 2025Mariani Peter JChief Financial OfficerOption exercise(X)33K$1.00$33K
Jan 17, 2025Mariani Peter JChief Financial OfficerOther(J)33K
Jan 17, 2025Mariani Peter JChief Financial OfficerOption exercise(X)33K$0
Jan 17, 2025Mariani Peter JChief Financial OfficerOther(J)33K
Jan 17, 2025Chan Phillip P.Chief Executive Officer, DirectorOption exercise(X)91K$1.00$91K
Jan 17, 2025Chan Phillip P.Chief Executive Officer, DirectorOther(J)91K
Jan 17, 2025Chan Phillip P.Chief Executive Officer, DirectorOther(J)91K
Jan 17, 2025Chan Phillip P.Chief Executive Officer, DirectorOption exercise(X)91K$0
Jan 17, 2025Sobel Alan D.DirectorOption exercise(X)22K$1.00$22K
Jan 17, 2025Sobel Alan D.DirectorOther(J)22K
Jan 17, 2025Sobel Alan D.DirectorOther(J)22K
Jan 17, 2025Sobel Alan D.DirectorOption exercise(X)22K$0
Jan 17, 2025Deliargyris EfthymiosChief Medical OfficerOption exercise(X)16K$1.00$16K
Jan 17, 2025Deliargyris EfthymiosChief Medical OfficerOther(J)16K
Jan 17, 2025Deliargyris EfthymiosChief Medical OfficerOption exercise(X)16K$0
Jan 17, 2025Deliargyris EfthymiosChief Medical OfficerOther(J)16K
Jan 17, 2025Capponi VincentPresident and COOOption exercise(X)32K$1.00$32K
Jan 17, 2025Capponi VincentPresident and COOOption exercise(X)32K$0
Jan 17, 2025Capponi VincentPresident and COOOther(J)32K
Jan 17, 2025Capponi VincentPresident and COOOther(J)32K
Jan 17, 2025Bator Michael G.DirectorOption exercise(X)16K$1.00$16K
Jan 17, 2025Bator Michael G.DirectorOption exercise(X)16K$0
Jan 17, 2025Bator Michael G.DirectorOther(J)16K
Jan 17, 2025Bator Michael G.DirectorOther(J)16K
Dec 13, 2024Mariani Peter JChief Financial OfficerBuy(P)20K$0.96$19K
Dec 12, 2024Mariani Peter JChief Financial OfficerBuy(P)20K$0.89$18K
Dec 11, 2024Mariani Peter JChief Financial OfficerBuy(P)11K$0.89$10K
Oct 4, 2024Capponi VincentPresident and COOGrant(A)100K
Oct 4, 2024Capponi VincentPresident and COOGrant(A)50K
Oct 4, 2024Deliargyris EfthymiosChief Medical OfficerGrant(A)100K
Oct 4, 2024Deliargyris EfthymiosChief Medical OfficerGrant(A)50K
Aug 14, 2024Mariani Peter JChief Financial OfficerGrant(A)175K$0
Aug 14, 2024Mariani Peter JChief Financial OfficerGrant(A)65K$0
Aug 14, 2024Mariani Peter JChief Financial OfficerGrant(A)110K$0
Aug 14, 2024Mariani Peter JChief Financial OfficerGrant(A)80K$0
Aug 14, 2024Mariani Peter JChief Financial OfficerGrant(A)215K$0
Apr 2, 2024Chan Phillip P.Chief Executive Officer, DirectorGrant(A)96K$0
Apr 2, 2024Chan Phillip P.Chief Executive Officer, DirectorGrant(A)124K
Apr 2, 2024Kim JinyDirectorGrant(A)22K
Apr 2, 2024Capponi VincentPresident and COOGrant(A)81K$0
Apr 2, 2024Capponi VincentPresident and COOGrant(A)101K
Apr 2, 2024Bator Michael G.DirectorGrant(A)44K
Apr 2, 2024Bloch Kathleen P.Chief Financial OfficerGrant(A)65K$0
Apr 2, 2024Bloch Kathleen P.Chief Financial OfficerGrant(A)87K
Apr 2, 2024Sobel Alan D.DirectorGrant(A)22K
Apr 2, 2024Deliargyris EfthymiosChief Medical OfficerGrant(A)61K$0
Apr 2, 2024Deliargyris EfthymiosChief Medical OfficerGrant(A)86K
Apr 2, 2024Jones Edward RaymondDirectorGrant(A)22K
Mar 29, 2024Chan Phillip P.Chief Executive Officer, DirectorGrant(A)130K
Mar 29, 2024Bloch Kathleen P.Chief Financial OfficerGrant(A)49K
Mar 29, 2024Capponi VincentPresident and COOGrant(A)49K
Mar 29, 2024Deliargyris EfthymiosChief Medical OfficerGrant(A)47K
Dec 13, 2023Chan Phillip P.Chief Executive Officer, DirectorBuy(P)75K$1.33$100K
Dec 13, 2023Chan Phillip P.Chief Executive Officer, DirectorBuy(P)26K
Dec 13, 2023Kim JinyDirectorBuy(P)8K$1.33$10K
Dec 13, 2023Kim JinyDirectorBuy(P)3K
Dec 13, 2023Bloch Kathleen P.Chief Financial OfficerBuy(P)38K$1.33$50K
Dec 13, 2023Bloch Kathleen P.Chief Financial OfficerBuy(P)13K
Dec 13, 2023Jones Edward RaymondDirectorBuy(P)8K$1.33$10K
Dec 13, 2023Jones Edward RaymondDirectorBuy(P)3K
Dec 13, 2023Bator Michael G.DirectorBuy(P)38K$1.33$50K
Dec 13, 2023Bator Michael G.DirectorBuy(P)13K
Dec 13, 2023Capponi VincentPresident & COOBuy(P)19K$1.33$25K
Dec 13, 2023Capponi VincentPresident & COOBuy(P)7K
Dec 13, 2023Deliargyris EfthymiosChief Medical OfficerBuy(P)23K$1.33$30K
Dec 13, 2023Deliargyris EfthymiosChief Medical OfficerBuy(P)8K
Dec 13, 2023Sobel Alan D.DirectorBuy(P)23K$1.33$30K
Dec 13, 2023Sobel Alan D.DirectorBuy(P)8K
Sep 18, 2023Bloch Kathleen P.Chief Financial OfficerGrant(A)45K$0
Sep 18, 2023Bloch Kathleen P.Chief Financial OfficerGrant(A)30K$0
Aug 7, 2023Bator Michael G.DirectorBuy(P)1K$3.15$3K
Aug 7, 2023Bator Michael G.DirectorBuy(P)1K$3.20$3K
Aug 4, 2023Bator Michael G.DirectorBuy(P)1K$3.23$3K
Jul 7, 2023Deliargyris EfthymiosChief Medical OfficerGrant(A)55K$0

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).