ACORN BIOVENTURES, L.P.

13D and 13G Filings

13D/G filings: 13G on 11 securities
Location: New York, NY
CIK: 0001766853
Form D filings: 2 filings
All SEC filings: View on sec.gov

Issuer	Symbol	CUSIP	% of Class	Shares	Form	Filed
Karyopharm Therapeutics Inc. 13G/A Amendment 2 KPTI · 48576U205	KPTI	48576U205	4.5%	1,021,668	13G/A Amendment 2	10/8/2026 Event 10/2/2026
Acorn Bioventures, L.P.			1.9%	429,101
Acorn Capital Advisors GP, LLC			1.9%	429,101
Acorn Bioventures 2, L.P.			2.6%	592,567
Acorn Capital Advisors GP 2, LLC			2.6%	592,567
Anders Hove			4.5%	1,021,668
Karyopharm Therapeutics Inc. 13G/A Amendment 1 KPTI · 48576U205	KPTI	48576U205	5.7%	1,284,221	13G/A Amendment 1	9/25/2026 Event 9/22/2026
Acorn Bioventures, L.P.			2.4%	539,373
Acorn Capital Advisors GP, LLC			2.4%	539,373
Acorn Bioventures 2, L.P.			3.3%	744,848
Acorn Capital Advisors GP 2, LLC			3.3%	744,848
Anders Hove			5.7%	1,284,221
Karyopharm Therapeutics Inc. 13G/A Amendment 1 KPTI · 48576U205	KPTI	48576U205	5.7%	1,284,221	13G/A Amendment 1	9/25/2026 Event 9/22/2026
Acorn Bioventures, L.P.			2.4%	539,373
Acorn Capital Advisors GP, LLC			2.4%	539,373
Acorn Bioventures 2, L.P.			3.3%	744,848
Acorn Capital Advisors GP 2, LLC			3.3%	744,848
Anders Hove			5.7%	1,284,221
LeonaBio, Inc. 13G/A Amendment 2 LONA · 04746L203	LONA	04746L203	12.1%	1,492,521	13G/A Amendment 2	8/20/2026 Event 8/18/2026
Acorn Bioventures, L.P.			5.1%	480,653
Acorn Capital Advisors GP, LLC			5.1%	480,653
Acorn Bioventures 2, L.P.			7.0%	663,763
Acorn Capital Advisors GP 2, LLC			7.0%	663,763
Anders Hove			12.1%	1,492,521
enGene Therapeutics Inc. 13G ENGN · 29286M105	ENGN	29286M105	5.0%	3,357,282	13G	7/22/2026 Event 7/20/2026
Acorn Bioventures, L.P.			2.1%	1,410,059
Acorn Capital Advisors GP, LLC			2.1%	1,410,059
Acorn Bioventures 2, L.P.			2.9%	1,947,223
Acorn Capital Advisors GP 2, LLC			2.9%	1,947,223
Anders Hove			5.0%	3,357,282
Karyopharm Therapeutics Inc. 13G KPTI · 48576U205	KPTI	48576U205	6.7%	1,518,113	13G	5/15/2026 Event 5/13/2026
Acorn Bioventures, L.P.			2.8%	637,608
Acorn Capital Advisors GP, LLC			2.8%	637,608
Acorn Bioventures 2, L.P.			3.9%	880,505
Acorn Capital Advisors GP 2, LLC			3.9%	880,505
Anders Hove			6.7%	1,518,113
OnKure Therapeutics, Inc. 13G OKUR · 68277Q105	OKUR	68277Q105	9.5%	3,924,037	13G	4/1/2026 Event 3/27/2026
Acorn Bioventures, L.P.			4.5%	1,854,525
Acorn Capital Advisors GP, LLC			4.5%	1,854,525
Acorn Bioventures 2, L.P.			5.0%	2,069,512
Acorn Capital Advisors GP 2, LLC			5.0%	2,069,512
Anders Hove			9.5%	3,924,037
Jasper Therapeutics, Inc. 13G/A Amendment 1 JSPR · 471871202	JSPR	471871202	5.3%	1,486,492	13G/A Amendment 1	1/26/2026 Event 1/23/2026
Acorn Bioventures, L.P.			2.2%	624,326
Acorn Capital Advisors GP, LLC			2.2%	624,326
Acorn Bioventures 2, L.P.			3.1%	862,166
Acorn Capital Advisors GP 2, LLC			3.1%	862,166
Anders Hove			5.3%	1,486,492
Athira Pharma, Inc. 13G/A Amendment 1 ATHA · 04746L104	ATHA	04746L104	6.2%	596,068	13G/A Amendment 1	1/8/2026 Event 1/6/2026
Acorn Bioventures, L.P.			2.6%	250,348
Acorn Capital Advisors GP, LLC			2.6%	250,348
Acorn Bioventures 2, L.P.			3.6%	345,720
Acorn Capital Advisors GP 2, LLC			3.6%	345,720
Anders Hove			6.2%	596,068
Athira Pharma, Inc. 13G ATHA · 04746L104	ATHA	04746L104	5.2%	501,739	13G	12/23/2025 Event 12/22/2025
Acorn Bioventures, L.P.			2.2%	210,730
Acorn Capital Advisors GP, LLC			2.2%	210,730
Acorn Bioventures 2, L.P.			3.0%	291,009
Acorn Capital Advisors GP 2, LLC			3.0%	291,009
Anders Hove			5.2%	501,739
Jasper Therapeutics, Inc. 13G JSPR · 471871202	JSPR	471871202	6.4%	1,786,492	13G	12/2/2025 Event 12/1/2025
Acorn Bioventures, L.P.			2.7%	750,326
Acorn Capital Advisors GP, LLC			2.7%	750,326
Acorn Bioventures 2, L.P.			3.7%	1,036,166
Acorn Capital Advisors GP 2, LLC			3.7%	1,036,166
Anders Hove			6.4%	1,786,492
Y-mAbs Therapeutics, Inc. 13G/A Amendment 3 YMAB · 984241109	YMAB	984241109	6.2%	2,796,297	13G/A Amendment 3	8/20/2025 Event 8/19/2025
Acorn Bioventures, L.P.			2.6%	1,175,686
Acorn Capital Advisors GP, LLC			2.6%	1,175,686
Acorn Bioventures 2, L.P.			3.6%	1,620,611
Acorn Capital Advisors GP 2, LLC			3.6%	1,620,611
Anders Hove			6.2%	2,796,297
Y-mAbs Therapeutics, Inc. 13G/A Amendment 2 YMAB · 984241109	YMAB	984241109	7.0%	3,096,297	13G/A Amendment 2	8/15/2025 Event 8/14/2025
Acorn Bioventures, L.P.			3.0%	1,301,686
Acorn Capital Advisors GP, LLC			3.0%	1,301,686
Acorn Bioventures 2, L.P.			4.0%	1,794,611
Acorn Capital Advisors GP 2, LLC			4.0%	1,794,611
Anders Hove			7.0%	3,096,297
Candel Therapeutics, Inc. 13G CADL · 137404109	CADL	137404109	5.2%	2,580,517	13G	6/30/2025 Event 6/25/2025
Acorn Bioventures, L.P.			2.2%	1,083,818
Acorn Bioventures 2, L.P.			3.0%	1,496,699
Acorn Capital Advisors GP, LLC			2.2%	1,083,818
Acorn Capital Advisors GP2, LLC			3.0%	1,496,699
Anders Hove			5.2%	2,580,517
OnKure Therapeutics, Inc. 13D/A Amendment 1 OKUR · 68277Q105	OKUR	68277Q105	22.1%	2,839,674	13D/A Amendment 1	5/30/2025 Event 5/15/2025
Acorn Bioventures, L.P.			13.3%	1,709,944
Acorn Capital Advisors GP, LLC			13.3%	1,709,944
Anders Hove			22.1%	2,839,674
Acorn Bioventures 2, L.P.			8.8%	1,129,730
Acorn Capital Advisors GP 2, LLC			8.8%	1,129,730
OnKure Therapeutics, Inc. 13D OKUR · 68277Q105	OKUR	68277Q105	22.1%	2,839,674	13D	5/22/2025 Event 5/15/2025
Acorn Bioventures, L.P.			13.3%	1,709,944
Acorn Capital Advisors GP, LLC			13.3%	1,709,944
Anders Hove			22.1%	2,839,674
Acorn Bioventures 2, L.P.			8.8%	1,129,730
Acorn Capital Advisors GP 2, LLC			8.8%	1,129,730
BioAtla, Inc. 13G/A Amendment 4 BCAB · 09077B104	BCAB	09077B104	8.3%	4,835,111	13G/A Amendment 4	5/20/2025 Event 5/15/2025
Acorn Bioventures, L.P.			3.7%	2,162,205
Acorn Bioventures 2, L.P.			4.6%	2,672,906
Acorn Capital Advisors GP, LLC			3.7%	2,162,205
Anders Hove			8.3%	4,835,111
Acorn Capital Advisors GP 2, LLC			4.6%	2,672,906
Mural Oncology plc 13G/A Amendment 2 MURA · G63365103	MURA	G63365103	7.6%	1,286,079	13G/A Amendment 2	2/14/2025 Event 12/31/2024
Acorn Bioventures, L.P.			3.2%	540,153
Acorn Bioventures 2, L.P.			4.4%	745,926
Acorn Capital Advisors GP, LLC			3.2%	540,153
Acorn Capital Advisors GP 2, LLC			4.4%	745,926
Anders Hove			7.6%	1,286,079
Puma Biotechnology Inc 13G/A Amendment 3 PBYI · 74587V107	PBYI	74587V107	8.0%	3,940,052	13G/A Amendment 3	2/14/2025 Event 12/31/2024
Acorn Bioventures, L.P.			3.3%	1,654,823
Acorn Bioventures 2, L.P.			4.7%	2,285,229
Acorn Capital Advisors GP, LLC			3.3%	1,654,823
Anders Hove			8.0%	3,940,052
Acorn Capital Advisors GP 2, LLC			4.7%	285,229
Puma Biotechnology Inc 13G/A Amendment 2 PBYI · 74587V107	PBYI	74587V107	6.7%	3,279,440	13G/A Amendment 2	11/14/2024 Event 9/30/2024
Acorn Bioventures, L.P.			2.8%	1,377,366
Acorn Bioventures 2, L.P.			3.9%	1,902,074
Acorn Capital Advisors GP, LLC			2.8%	1,377,366
Anders Hove			6.7%	3,279,440
Acorn Capital Advisors GP 2, LLC			3.9%	1,902,074
Mural Oncology plc 13G/A Amendment 1 MURA · G63365103	MURA	G63365103	6.3%	1,077,222	13G/A Amendment 1	11/14/2024 Event 8/9/2024
Acorn Bioventures, L.P.			2.7%	452,433
Acorn Bioventures 2, L.P.			3.7%	624,789
Acorn Capital Advisors GP, LLC			2.7%	452,433
Acorn Capital Advisors GP 2, LLC			3.7%	624,789
Anders Hove			6.3%	1,077,222

Includes filings since 12/18/2024, when the SEC began requiring structured 13D and 13G data.