Investor · BOSTON, MA

Sarah J. Jankowski

Open Sarah in the network graph →

Filings

30

SEC Form D

Connections

6

co-filers

Capital

$3.8B

across filings

Active

Dec 2020

to Dec 2025

Most-connected co-filers (6)

Robert E. Phay, Jr · BOSTON, MA30 shared William A. Teichner · BOSTON, MA25 shared A. Rich · Boston, MA5 shared Michael A. Cavarretta · BOSTON, MA5 shared Patrick J. Bizub · GAINESVILLE, FL5 shared Thomas W. Mallini · GAINESVILLE, FL5 shared

Recent filings (30)

FRONTIER CAPITAL APPRECIATION FUND, L.P.Dec 2025 · 1 co-filer FRONTIER MID CAP GROWTH FUND LIMITED PARTNERSHIPDec 2025 · 1 co-filer Frontier Focus Fund, L.P.Dec 2025 · 1 co-filer FRONTIER SMALL CAP GROWTH FUND, L.P.Dec 2025 · 1 co-filer FRONTIER SMALL CAP VALUE, L.P.Dec 2025 · 1 co-filer FRONTIER SMALL CAP VALUE, L.P.Dec 2024 · 3 co-filers FRONTIER SMALL CAP GROWTH FUND, L.P.Dec 2024 · 3 co-filers Frontier Focus Fund, L.P.Dec 2024 · 3 co-filers FRONTIER MID CAP GROWTH FUND LIMITED PARTNERSHIPDec 2024 · 3 co-filers FRONTIER CAPITAL APPRECIATION FUND, L.P.Dec 2024 · 3 co-filers FRONTIER SMALL CAP VALUE, L.P.Dec 2023 · 2 co-filers FRONTIER SMALL CAP GROWTH FUND, L.P.Dec 2023 · 2 co-filers Frontier Focus Fund, L.P.Dec 2023 · 2 co-filers FRONTIER MID CAP GROWTH FUND LIMITED PARTNERSHIPDec 2023 · 2 co-filers FRONTIER CAPITAL APPRECIATION FUND, L.P.Dec 2023 · 2 co-filers FRONTIER SMALL CAP VALUE, L.P.Dec 2022 · 2 co-filers FRONTIER SMALL CAP GROWTH FUND, L.P.Dec 2022 · 2 co-filers Frontier Focus Fund, L.P.Dec 2022 · 2 co-filers FRONTIER MID CAP GROWTH FUND LIMITED PARTNERSHIPDec 2022 · 2 co-filers FRONTIER CAPITAL APPRECIATION FUND, L.P.Dec 2022 · 2 co-filers FRONTIER SMALL CAP VALUE, L.P.Dec 2021 · 2 co-filers FRONTIER SMALL CAP GROWTH FUND, L.P.Dec 2021 · 2 co-filers Frontier Focus Fund, L.P.Dec 2021 · 2 co-filers FRONTIER MID CAP GROWTH FUND LIMITED PARTNERSHIPDec 2021 · 2 co-filers FRONTIER CAPITAL APPRECIATION FUND, L.P.Dec 2021 · 2 co-filers

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