Investor · San Francisco, CA
Janwillem Naesens
Open Janwillem in the network graph →Filings
71
SEC Form D
Connections
246
co-filers
Capital
$18.0M
across filings
Active
May 2019
to Mar 2022
Most-connected co-filers (246)
Margarita Chavez · San Francisco, CA46 sharedRobert Langer · PITTSBURGH, PA38 sharedVijay Srinivasan · Los Angeles, CA36 sharedJames A. David · BOSTON, MA36 sharedAllison Armstrong · Scotts Valley, CA36 sharedFrederick A. Fogel · BOSTON, MA36 sharedNicholas J. Azrack · BOSTON, MA36 sharedSeth A. Klarman · BOSTON, MA36 sharedJason F. Price · BOSTON, MA36 sharedMichael A. Sperling · BOSTON, MA36 sharedLynn Vojvodich · San Francisco, CA36 sharedPhilip Lawson · Tiburon, CA36 sharedJames F. Mooney Iii · BOSTON, MA36 sharedLee Babiss · Cambridge, MA36 sharedCarl Hansen · St Helier, Channel Islands, Y936 sharedSyed Ali · San Francisco, CA36 sharedToby Pratt · Bellingham, WA36 sharedPeder D. Prahl · London, United Kingdom36 sharedJoshua A. Greenhill · BOSTON, MA36 sharedSteven G. Mandis · Bethesda, MD36 sharedPeter B. Hutt · CAMBRIDGE, MA36 sharedThomas W. Blumenthal · BOSTON, MA36 sharedElaine F. Mann · BOSTON, MA36 sharedGrant N. Cellier · Grand Cayman, Cayman Islands29 shared
Recent filings (71)
Protego Biopharma, Inc.Dec 2025 · 19 co-filers$130.4MProtego Biopharma, Inc.Dec 2025 · 19 co-filers$130.4MInvestar Holding CorpJul 2025 · 34 co-filers$32.5MBG Co-Investment 2024, L.L.C.Mar 2025 · 33 co-filers$221.7MBAUPOST LTD PARTNERSHIP 1983 B-1Mar 2025 · 33 co-filersBAUPOST LTD PARTNERSHIP 1983 C-1Mar 2025 · 33 co-filersBAUPOST VALUE PARTNERS LP 1Mar 2025 · 33 co-filersBAUPOST VALUE PARTNERS LP IIMar 2025 · 33 co-filersBAUPOST VALUE PARTNERS LP IIIMar 2025 · 33 co-filersBAUPOST VALUE PARTNERS LP IVMar 2025 · 33 co-filersBAUPOST LTD PARTNERSHIP 1983 A-1Mar 2025 · 33 co-filersBAUPOST VALUE PARTNERS LP 1Mar 2024 · 37 co-filersBAUPOST LTD PARTNERSHIP 1983 A-1Mar 2024 · 37 co-filersBAUPOST LTD PARTNERSHIP 1983 C-1Mar 2024 · 37 co-filersBAUPOST LTD PARTNERSHIP 1983 B-1Mar 2024 · 37 co-filersBAUPOST VALUE PARTNERS LP IIMar 2024 · 37 co-filersBAUPOST VALUE PARTNERS LP IIIMar 2024 · 37 co-filersBAUPOST VALUE PARTNERS LP IVMar 2024 · 37 co-filersBAUPOST LTD PARTNERSHIP 1983 B-1Mar 2023 · 43 co-filersBAUPOST LTD PARTNERSHIP 1983 A-1Mar 2023 · 43 co-filersBAUPOST VALUE PARTNERS LP 1Mar 2023 · 43 co-filersBAUPOST LTD PARTNERSHIP 1983 C-1Mar 2023 · 43 co-filersBAUPOST VALUE PARTNERS LP IVMar 2023 · 43 co-filersBAUPOST VALUE PARTNERS LP IIIMar 2023 · 43 co-filersBAUPOST VALUE PARTNERS LP IIMar 2023 · 43 co-filers
Derived from public SEC Form D (Reg D) filings; entities resolved probabilistically. See Janwillem in the interactive graph →