Investor · Austin, TX
Duncan M. Penn
Open Duncan in the network graph →Filings
15
SEC Form D
Connections
79
co-filers
Capital
$95.2M
across filings
Active
Sep 2022
to Sep 2025
Most-connected co-filers (79)
Steve Braverman · Scottsdale, AZ8 sharedDavid Braverman · Scottsdale, AZ8 sharedEduardo P. Campos · SAO PAULO, SP, Guernsey6 sharedKeenan N. Austin · Washington, Washington, D.C.6 sharedShekar G. Nair · Lewes, DE6 sharedP. G. Zimmer, Jr · Irvine, CA4 sharedThomas W. Corbett · Irvine, CA4 sharedJennifer E. Baumann · Irvine, CA4 sharedThomas P. Harrison · Chicago, IL4 sharedKurt Kuhlmann · Palo Alto, CA4 sharedPeter S. Carpenter · Irvine, CA4 sharedTed C. Filley · Irvine, CA4 sharedStephen K. Leech · Los Angeles, CA4 sharedDustin P. Stitgen · Chicago, IL4 sharedRalph S. Hurst · Irvine, CA4 sharedSidarth Kapoor · New York, NY4 sharedCasey Gard · Bal Harbour, FL4 sharedJames D. Carey · Greenwich, CT4 sharedMichael Randofi · San Mateo, CA4 sharedCarrie Teffner · San Mateo, CA4 sharedPhilip Moldavski · CARLSTADT, NJ4 sharedMichael Mcninch · Washington, Washington, D.C.4 sharedRobert J. Castillo · Chicago, IL4 sharedJames R. Matthews · New York, NY4 shared
Recent filings (15)
Alliant Holdings, L.P.Sep 2025 · 39 co-filersAlliant Holdings, L.P.Sep 2024 · 37 co-filersGatsby Investment Holdings LLC -- CApr 2024 · 2 co-filers$25.0MGatsby Investment Holdings LLC -- CApr 2024 · 2 co-filers$25.0MGatsby Falcon A, LPApr 2024 · 5 co-filers$25.5MGatsby Falcon A, LPApr 2024 · 5 co-filers$25.5MKAB of North Alabama, LLCApr 2024 · 36 co-filers$6.7MKAB of North Alabama, LLCFeb 2024 · 32 co-filers$6.5MGatsby Rocket X, LPFeb 2024 · 5 co-filers$20.2MGatsby Rocket X, LPFeb 2024 · 5 co-filers$20.2MGatsby Rocket LLCFeb 2024 · 2 co-filers$24.4MGatsby Rocket LLCFeb 2024 · 2 co-filers$24.4MGatsby Investment Holdings SPV LPOct 2023 · 5 co-filers$15.2MGatsby Investment Holdings SPV LPOct 2023 · 5 co-filers$15.2MGatsby Investment Holdings SPV LPOct 2023 · 5 co-filers$15.2MAlliant Holdings, L.P.Sep 2023 · 36 co-filersGatsby Investment Holdings LLCAug 2023 · 2 co-filers$15.0MGatsby Investment Holdings LLCAug 2023 · 2 co-filers$15.0MGatsby Investment Holdings LLCAug 2023 · 2 co-filers$15.0MGatsby Rocket V LPFeb 2023 · 5 co-filers$11.2MGatsby Rocket V LPFeb 2023 · 5 co-filers$11.2MGatsby Rocket V LPFeb 2023 · 5 co-filers$11.2MBridgepoint Europe VII B SCSpDec 2022 · 20 co-filersBridgepoint Europe VII B SCSpSep 2022 · 22 co-filersAlliant Holdings, L.P.Sep 2022 · 36 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Duncan in the interactive graph →