Investor · Stafa, V8
Ludger E. Althoff
Open Ludger in the network graph →Filings
22
SEC Form D
Connections
102
co-filers
Capital
$93K
across filings
Active
Oct 2019
to Jan 2026
Most-connected co-filers (102)
Claudio E. Bartesaghi · Stafa, V821 sharedAndi E. Vonlanthen · Stafa, V820 sharedEcor1 Capital, Llc · San Francisco, CA16 sharedWilliam J. Parham, Jr · Chapel Hill, NC14 sharedOleg Nodelman · San Francisco, CA14 sharedEcor1 Capital, Llc · San Francisco, CA14 sharedSarah Marriott · San Francisco, CA14 sharedScott Perlen · Chicago, IL14 sharedEton Advisors Group, LLC · Chapel Hill, NC14 sharedBradley F. Dalton · Chapel Hill, NC14 sharedRobert F. Spoerry · Stafa, V86 sharedLynn F. Dorsey Bleil · Stafa, V86 sharedArnd Kaldowski · Stafa, V86 sharedLukas F. Braunschweiler · Stafa, V86 sharedNigel R. Cameron · Kansas City, MO4 sharedShannon B. Stuckenberg · Kansas City, MO4 sharedAdrian F. Widmer · Stafa, V84 sharedBrett Siegal · Chicago, IL4 sharedChris Gilroy · Boerne, TX4 sharedMark C. Demetree · Vancouver, British Columbia, Canada4 sharedVictoria Carr-Brendel · Irvine, CA4 sharedDavid A. Deptula · Kansas City, MO4 sharedJohn P. Sumrall · Kansas City, MO4 sharedSteven R. Kwast · Kansas City, MO4 shared
Recent filings (22)
EcoR1 Capital Fund, L.P.Jan 2026 · 3 co-filersEcoR1 Capital Fund Qualified, L.P.Jan 2026 · 3 co-filersEcoR1 Capital Fund, L.P.Jan 2025 · 10 co-filersEcoR1 Capital Fund Qualified, L.P.Jan 2025 · 10 co-filersSonova Holding AGFeb 2024 · 49 co-filers$12KEcoR1 Capital Fund Qualified, L.P.Nov 2023 · 10 co-filersEcoR1 Capital Fund, L.P.Nov 2023 · 10 co-filersEcoR1 Capital Fund Qualified, L.P.Nov 2023 · 10 co-filersSonova Holding AGFeb 2023 · 53 co-filers$12KEcoR1 Capital Fund, L.P.Nov 2022 · 10 co-filersEcoR1 Capital Fund Qualified, L.P.Nov 2022 · 10 co-filersSonova Holding AGMar 2022 · 53 co-filers$35KEcoR1 Capital Fund Qualified, L.P.Sep 2021 · 10 co-filersEcoR1 Capital Fund, L.P.Sep 2021 · 10 co-filersGreenbrook TMS Inc.Apr 2021 · 39 co-filers$5.7MSonova Holding AGMar 2021 · 49 co-filers$34KEcoR1 Capital Fund, L.P.Sep 2020 · 10 co-filersEcoR1 Capital Fund Qualified, L.P.Sep 2020 · 10 co-filersEcoR1 Capital Fund, L.P.Oct 2019 · 10 co-filersGreenbrook TMS Inc.Oct 2019 · 35 co-filersEcoR1 Special Opportunity Fund III, L.P.Oct 2019 · 10 co-filersEcoR1 Capital Fund Qualified, L.P.Oct 2019 · 10 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Ludger in the interactive graph →