Investor · Woburn, MA

Tadeu Carneiro

Open Tadeu in the network graph →

Filings

12

SEC Form D

Connections

51

co-filers

Capital

$120.2M

across filings

Active

Jan 2018

to Jul 2025

Most-connected co-filers (51)

Mark Cupta · Cambridge, MA7 shared Donald Sadoway · Marlborough, MA5 shared Katie Rae · Allston, MA5 shared Maariyah Hossany · Rose Hill, O45 shared Pramod Kumar Nair · Mumbai, K74 shared Matthew Mccolluch · CHICAGO, IL4 shared Ingo Wender · Woburn, MA4 shared Darius Monsef · Portland, OR3 shared Corey Fish, M.D · Portland, OR3 shared Christopher Poirier · Westwood, MA3 shared Rick Cutright · WOBURN, MA3 shared Franklin D. Raines · WASHINGTON, Washington, D.C.3 shared Sahadev F. Shivarthy Brahmananda · Summit, NJ3 shared Shyam Kamadolli · San Bruno, CA3 shared Irina Gorbounova · WOBURN, MA3 shared Hemant Bheda · MILPITAS, CA2 shared Peng T. Ong · Singapore, U02 shared Prashasta Seth · MUMBAI, K72 shared SharpVue Real Estate GP 2018 QP, LLC · Raleigh, NC2 shared Eduardo De Salles Bartolomeo · Woburn, MA2 shared Michael Matly · Alpine, WY2 shared Dan Morgan · San Diego, CA2 shared David Toth · San Diego, CA2 shared Daniel K. Turner · San Francisco, CA2 shared

Recent filings (12)

Boston Electrometallurgical CorpMar 2026 · 8 co-filers$100.0M Boston Electrometallurgical CorpJul 2025 · 18 co-filers$75.0M Boston Electrometallurgical CorpJul 2025 · 18 co-filers$75.0M Boston Electrometallurgical CorpFeb 2023 · 17 co-filers$300.0M Boston Electrometallurgical CorpFeb 2023 · 17 co-filers$300.0M Boston Electrometallurgical CorpJan 2021 · 19 co-filers$60.0M Boston Electrometallurgical CorpJan 2021 · 19 co-filers$60.0M TETRA DISCOVERY PARTNERS, INC.Jan 2019 · 11 co-filers$35.8M Boston Electrometallurgical CorpJan 2019 · 17 co-filers$26.0M Boston Electrometallurgical CorpJan 2019 · 17 co-filers$26.0M 7943067 Canada Inc.Jul 2018 · 5 co-filers$11.3M Sigma Lithium Resources Inc.Apr 2018 · 11 co-filers$465K Sigma Lithium Resources Inc.Apr 2018 · 11 co-filers$465K OUTBOUNDWORKS, INC.Mar 2018 · 6 co-filers$750K 7943067 Canada Inc.Mar 2018 · 8 co-filers$10.0M strongDM, Inc.Jan 2018 · 8 co-filers$925K TETRA DISCOVERY PARTNERS, INC.Jul 2017 · 10 co-filers$1.5M

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