Activist & passive stakes

Investors crossing the 5% ownership line, from SEC Schedule 13D (activist) and 13G (passive) filings. Newest first.

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Filing

Stake type

Min % owned

All filings, new and amended.1–2 of 2

PassiveAmendment 1Below 5%
Nov 13, 2026
YARW · Yarrow Bioscience, Inc.
Nantahala Capital Management, LLC
0.46% · 39,198 shSEC
PassiveNew
Nov 13, 2026
YARW · Yarrow Bioscience, Inc.
Spruce Street Capital LP
6.4% · 607,382 shSEC

Filing	Symbol	Holder	% Owned	Shares	Filed	SEC filing
PassiveAmendment 1Below 5%	YARW	Nantahala Capital Management, LLC in Yarrow Bioscience, Inc.	0.46%	39,198	Nov 13, 2026	SEC
PassiveNew	YARW	Spruce Street Capital LP in Yarrow Bioscience, Inc.	6.4%	607,382	Nov 13, 2026	SEC