Ledger.
Investor · San Diego, CA

Albert A. Luderer, Ph.D

Open Albert in the network graph →
Filings
47
SEC Form D
Connections
84
co-filers
Capital
$79.4M
across filings
Active
Nov 2017
to Feb 2026

Most-connected co-filers (84)

Richard Simoni · PALO ALTO, CA40 sharedJohn Frankel · Austin, TX39 sharedLetko, Brosseau & Associates Inc · Montreal, Quebec, Canada36 sharedRobert Marien · Montreal, Quebec, Canada35 sharedDaniel Brosseau · Montreal, Quebec, Canada35 sharedJohn L. Lamattina · Cambridge, MA35 sharedPeter Letko · Montreal, Quebec, Canada35 sharedAaron Clark · Houston, TX34 sharedRichard Gordon · Camana Bay, Grand Cayman, Cayman Islands33 sharedJean-Andre Elie · Montreal, Quebec, Canada33 sharedWayne Grinnell · Las Vegas, NV33 sharedSusan M. Dillon · Cambridge, MA29 sharedThomas Birks · Montreal, Quebec, Canada29 sharedStuart Orgill · San Francisco, CA22 sharedMarco M. Buhigas Moran · Madrid, U318 sharedLuke Lee · Scottsdale, AZ17 sharedJean Gattuso · Montreal, Quebec, Canada17 sharedNathalie Claude Baroux Francisci · Montreal, Quebec, Canada17 sharedInspired Healthcare Capital LLC · Scottsdale, AZ17 sharedAlexander Dann · Montreal, Quebec, Canada10 sharedPaola Farnesi · Montreal, Quebec, Canada10 sharedR. Erik Holmlin, Ph.D · San Diego, CA9 sharedChristopher A. Twomey · San Diego, CA7 sharedDavid L. Barker, Ph.D · San Diego, CA7 shared

Recent filings (47)

Letko Brosseau ESG Fossil Fuel Free Global Equity Fund (US), a series of Letko Brosseau US Funds LPFeb 2026 · 10 co-filersLetko Brosseau RSP Balanced FundFeb 2026 · 10 co-filersLetko Brosseau RSP Bond FundFeb 2026 · 10 co-filersLetko Brosseau RSP Equity FundFeb 2026 · 10 co-filersLetko Brosseau Emerging Markets Equity Fund (US), a series of Letko Brosseau US Funds LPJan 2026 · 10 co-filersLetko Brosseau Equity FundJun 2025 · 24 co-filersLetko Brosseau RSP Equity FundMar 2025 · 24 co-filersLetko Brosseau RSP Balanced FundMar 2025 · 24 co-filersLetko Brosseau ESG Fossil Fuel Free Global Equity Fund (US), a series of Letko Brosseau US Funds LPMar 2025 · 24 co-filersLetko Brosseau RSP Bond FundMar 2025 · 24 co-filersLetko Brosseau Emerging Markets Equity Fund (US), a series of Letko Brosseau US Funds LPJan 2025 · 19 co-filersLetko Brosseau Equity FundJun 2024 · 21 co-filersLetko Brosseau RSP Equity FundMar 2024 · 21 co-filersLetko Brosseau ESG Fossil Fuel Free Global Equity Fund (US), a series of Letko Brosseau US Funds LPMar 2024 · 21 co-filersLetko Brosseau RSP Bond FundMar 2024 · 21 co-filersLetko Brosseau RSP Balanced FundMar 2024 · 21 co-filersLetko Brosseau Emerging Markets Equity Fund (US), a series of Letko Brosseau US Funds LPJan 2024 · 22 co-filersBionano Genomics, Inc.Oct 2023 · 32 co-filers$35.0MLetko Brosseau Emerging Markets Equity Fund (US), a series of Letko Brosseau US Funds LPApr 2023 · 22 co-filersLetko Brosseau ESG Fossil Fuel Free Global Equity Fund (US), a series of Letko Brosseau US Funds LPMar 2023 · 21 co-filersLetko Brosseau RSP Balanced FundMar 2023 · 21 co-filersLetko Brosseau RSP Equity FundMar 2023 · 21 co-filersLetko Brosseau RSP Bond FundMar 2023 · 21 co-filersLetko Brosseau ESG Fossil Fuel Free Global Equity Fund (US), a series of Letko Brosseau US Funds LPNov 2022 · 15 co-filersLetko Brosseau RSP Bond FundNov 2022 · 15 co-filers

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