Investor · Willowbrook, IL

David Costello

Open David in the network graph →

Filings

24

SEC Form D

Connections

43

co-filers

Capital

$12.3M

across filings

Active

Apr 2018

to Feb 2024

Most-connected co-filers (43)

Dimitra E. Emmanouilidou · Baltimore, MD16 shared Steve Boote · Sioux Falls, SD14 shared Thomas A. Berry · El Campo, TX14 shared John J. Guinee · ANDOVER, MA14 shared Daniel J. Cahill · ANDOVER, MA14 shared Sunil Gulati · Willowbrook, IL8 shared Anil Gulati · Willowbrook, IL8 shared Korey Korfiatis · Wenatchee, WA6 shared Frederic H. Mayerson · Cincinnati, OH6 shared Marc J. Brookman · NEW YORK, NY6 shared Tadmor Shalon · Menlo Park, CA6 shared Amir Bandeali · San Francisco, CA6 shared James Mcdonnell · Willowbrook, IL6 shared Dharminder Marwah · Willowbrook, IL6 shared Geoff L. Tabachnick · San Francisco, CA6 shared Ariel Pablos-Mendez · NEW YORK, NY5 shared Scot Cohen · Fairfield, IA5 shared Daniel P. Stauder · Willowbrook, IL5 shared Lubos Slovak · Pezinok, 2B4 shared Tamara A. Favorito · Solana Beach, CA4 shared Igor Kocis · Bratislava, 2B4 shared Cody Gross · Phoenix, AZ4 shared Jaishree Mclane · Baltimore, MD2 shared Ian Mclane · Baltimore, MD2 shared

Recent filings (24)

Pharmazz, Inc.Jun 2025 · 11 co-filers$25.0M Pharmazz, Inc.Jun 2025 · 11 co-filers$25.0M Pharmazz, Inc.Aug 2024 · 11 co-filers$15.0M Pharmazz, Inc.Aug 2024 · 11 co-filers$15.0M Pharmazz, Inc.Feb 2024 · 17 co-filers$6.0M Pharmazz, Inc.Nov 2023 · 17 co-filers$15.0M Pharmazz, Inc.May 2023 · 17 co-filers$5.5M Pharmazz, Inc.May 2023 · 17 co-filers$6.5M Pharmazz, Inc.Apr 2021 · 16 co-filers$5.0M Ironsides Offshore Direct Investment Fund V, L.P.Jul 2020 · 5 co-filers$72.8M Ironsides Partnership Fund V, L.P.Jul 2020 · 5 co-filers$274.2M Ironsides Offshore Partnership Fund V, L.P.Jul 2020 · 5 co-filers$37.5M Ironsides Direct Investment Fund V, L.P.Jul 2020 · 5 co-filers$400.1M Ironsides Direct Investment Fund V - Parallel A, L.P.Jul 2020 · 5 co-filers$100.0M Ironsides Direct Investment Fund V - Parallel A, L.P.Jan 2020 · 5 co-filers Pharmazz, Inc.Nov 2019 · 14 co-filers$3.7M Ironsides Partnership Fund V, L.P.May 2019 · 5 co-filers Ironsides Offshore Partnership Fund V, L.P.May 2019 · 5 co-filers Ironsides Direct Investment Fund V, L.P.May 2019 · 5 co-filers Ironsides Offshore Direct Investment Fund V, L.P.May 2019 · 5 co-filers Ironsides Offshore Direct Investment Fund V, L.P.Apr 2018 · 5 co-filers Ironsides Direct Investment Fund V, L.P.Apr 2018 · 5 co-filers Sonavi Labs, Inc.Apr 2018 · 15 co-filers$25K Sonavi Labs, Inc.Apr 2018 · 13 co-filers$25K Ironsides Partnership Fund V, L.P.Apr 2018 · 5 co-filers

Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See David in the interactive graph →