Investor · Chicago, IL
R. Mark Jernigan
Open R. in the network graph →Filings
185
SEC Form D
Connections
113
co-filers
Capital
$1.5B
across filings
Active
Mar 2012
to Mar 2025
Most-connected co-filers (113)
Scott A. Zimmerman · Evanston, IL62 sharedMatthew C. Osborne · La Jolla, CA52 sharedKenneth A. Meister · Evanston, IL47 sharedKenneth I. Mcguire · La Jolla, CA39 shared1207 Capital Group, LLC · Northbrook, IL39 sharedStephen B. Wells · New York, NY39 sharedTimothy M. Ghriskey · New York, NY39 sharedBibb Swain · Sarasota, FL37 sharedRobert J. Amedeo · Evergreen, CO37 sharedAltegris Advisors, LLC · La Jolla, CA32 sharedJack L. Rivkin · La Jolla, CA31 shared1207 Capital Group, LLC · Chicago, IL27 sharedJackson Klein · Chicago, IL27 sharedAaron B. Straus · Chicago, IL27 sharedMartin C. Beaulieu · La Jolla, CA25 sharedMichael Allen · Toronto, Ontario, Canada24 sharedDon A. Fehrs · Evanston, IL24 sharedDavid L. Wagner · Evanston, IL24 sharedAltegris Funds · La Jolla, CA22 sharedDennis Reid · Valencia, CA22 sharedAltegris Advisors, Llc · La Jolla, CA22 sharedMahyar Amirsaleh · Secaucus, NJ20 sharedOleg Popovsky · Vancouver, British Columbia, Canada20 sharedBrian J. Bayley · Vancouver, British Columbia, Canada20 shared
Recent filings (185)
Cimarron Energy Spectrum, L.P.Mar 2026 · 1 co-filerCimarron Healthcare Opportunities, LPMar 2026 · 1 co-filerCIMARRON PARTNERS LPMar 2026 · 1 co-filerCimarron Healthcare Opportunities, LPMar 2025 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2025 · 4 co-filersCIMARRON PARTNERS LPMar 2025 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2024 · 4 co-filersCimarron Healthcare Opportunities, LPMar 2024 · 5 co-filersCIMARRON PARTNERS LPMar 2024 · 5 co-filersCimarron Healthcare Opportunities, LPMar 2023 · 5 co-filersCIMARRON PARTNERS LPMar 2023 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2023 · 4 co-filersCIMARRON PARTNERS LPMar 2022 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2022 · 4 co-filersCimarron Healthcare Opportunities, LPMar 2022 · 5 co-filersAltegris QIM Futures Fund, L.P.Nov 2021 · 3 co-filersCIMARRON PARTNERS LPMar 2021 · 5 co-filersCimarron Healthcare Opportunities, LPMar 2021 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2021 · 4 co-filersAltegris QIM Futures Fund, L.P.Nov 2020 · 6 co-filersCimarron Healthcare Opportunities, LPMar 2020 · 5 co-filersCIMARRON PARTNERS LPMar 2020 · 5 co-filersCimarron Energy Spectrum, L.P.Mar 2020 · 4 co-filersAltegris Millennium Fund LPOct 2019 · 6 co-filersAltegris Income Opportunities Fund, L.P.Oct 2019 · 6 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See R. in the interactive graph →