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Yarrow Bioscience Inc

YARW
Healthcare|Biotechnology|US
$15.60
+2.00 (+14.71%)
DCF Value
$23.72
Tangible Book / Share
$25.71
Cash / Share
$26.72

Ownership Breakdown

90.4%
Float
9.3M
Shares Outstanding
8.4M
Float Shares

Major Holders (37)

Combined: 264.8%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
Logos Global Management GP LLCHC, OO10.70%286,308Aug 7, 202613D/G
Logos Global Management LPIA, PN10.70%286,308Aug 7, 202613D/G
Arsani WilliamHC, IN10.70%286,308Aug 7, 202613D/G
Bellevue Group AGHC, CO10.60%1,000,000Oct 7, 202613D/G
Bellevue Asset Management AGCorporation10.60%1,000,000Oct 7, 202613D/G
venBio Global Strategic Fund V, L.P.Partnership9.99%279,340Aug 14, 202613D/G
venBio Global Strategic GP V, LLCHC, OO9.99%279,340Aug 14, 202613D/G
JANUS HENDERSON GROUP Ltd.Holding company9.99%266,712Aug 7, 202613D/G
Perceptive Advisors LLCInvestment adviser9.99%266,756Aug 3, 202613D/G
Perceptive Life Sciences Master Fund, Ltd.Corporation9.99%266,756Aug 3, 202613D/G
Joseph EdelmanIndividual9.99%266,756Aug 3, 202613D/G
Roderick WongHC, IN9.99%266,307Jul 30, 202613D/G
RTW Fund Group GP, LLCIA, HC9.99%266,307Jul 30, 202613D/G
Orbimed Advisors LLCInvestment adviser9.97%266,306Aug 5, 202613D/G
Daniel SchneebergerHC, IN8.80%59,000Aug 14, 202613D/G
ADAR1 Capital Management, LLCIA, OO8.80%59,000Aug 14, 202613D/G
OrbiMed Capital GP X, LPOther8.73%233,019Aug 5, 202613D/G
OrbiMed Capital GP X LLCOther8.73%233,019Aug 5, 202613D/G
Raymond DebbaneIndividual7.20%675,000Sep 17, 202613D/G
Logos Global Master Fund LPPartnership6.60%176,678Aug 7, 202613D/G
Logos GP LLCHC, OO6.60%176,678Aug 7, 202613D/G
Invus Global Management, LLCOther6.30%591,472Sep 17, 202613D/G
Invus Public Equities, L.P.Partnership6.30%591,472Sep 17, 202613D/G
Siren, L.L.C.Other6.30%591,472Sep 17, 202613D/G
Invus Public Equities Advisors, LLCOther6.30%591,472Sep 17, 202613D/G
Len BlavatnikIndividual6.02%178,180Jul 29, 202613D/G
AI Biotechnology LLCOther6.02%178,180Jul 29, 202613D/G
Access Industries Holdings LLCOther6.02%178,180Jul 29, 202613D/G
Access Industries Management, LLCOther6.02%178,180Jul 29, 202613D/G
Logos Opportunities Fund V LPPartnership4.10%109,630Aug 7, 202613D/G
Graham WalmsleyHC, IN4.10%109,630Aug 7, 202613D/G
Logos Opportunities V GP LLCHC, OO4.10%109,630Aug 7, 202613D/G
OrbiMed Genesis GP LLCOther1.25%33,287Aug 5, 202613D/G
Avicenna Life Sci Master Fund LPPartnership0.90%83,528Sep 17, 202613D/G
Avicenna Life Sci Master GP LLCOther0.90%83,528Sep 17, 202613D/G
Ulys, L.L.C.Other0.90%83,528Sep 17, 202613D/G
Zhang XiaofanIndividual0.60%162,452Aug 13, 202613D/G

Insider Trades (100)

Last 4 quarters: 1,290,094 acquired · 319,752 disposed
InsiderPositionDateTypeSharesPriceValueFiling
Payton LoriChief Development OfficerOct 29, 2026AWARD99,827$20.00$2.0MForm 4
Alford RachaelChief Operating OfficerOct 29, 2026AWARD89,844$20.00$1.8MForm 4
Frey Rebeccadirector, officer: Chief Executive OfficerOct 29, 2026AWARD465,857$20.00$9.3MForm 4
Ryder StevenChief Medical OfficerOct 29, 2026AWARD113,137$20.00$2.3MForm 4
Zeronda TylerChief Financial OfficerOct 29, 2026AWARD156,115$20.00$3.1MForm 4
RTW Fund Group GP, LLC10 percent ownerJul 29, 2026J133,290$0.00$13.33Form 4
RTW Fund Group GP, LLC10 percent ownerJul 29, 2026DISPOSED133,290——Form 4
RTW Fund Group GP, LLC10 percent ownerJul 27, 2026OTHER0——Form 4
RTW Fund Group GP, LLC10 percent ownerJul 27, 2026OTHER8,816,429$0.00$881.64Form 4
Ashiya MonadirectorJul 27, 2026AWARD15,435$28.56$440.8KForm 4
Zeronda TylerdirectorJul 27, 2026AWARD185,798$28.56$5.3MForm 4
ORBIMED ADVISORS LLCdirectorJul 27, 2026OTHER0——Form 4
ORBIMED ADVISORS LLCdirectorJul 27, 2026OTHER0——Form 4
ORBIMED ADVISORS LLCdirectorJul 27, 2026OTHER583,545$0.00$58.35Form 4
Ashiya MonadirectorJul 27, 2026OTHER0——Form 4
Ashiya MonadirectorJul 27, 2026OTHER0——Form 4
Ashiya MonadirectorJul 27, 2026OTHER583,545$0.00$58.35Form 4
White William RicharddirectorJul 27, 2026OTHER87,820$6.19$543.6KForm 4
Silverman Peter B.directorJul 27, 2026OTHER87,820$6.19$543.6KForm 4
Lundberg Sven AntedirectorJul 27, 2026OTHER175,639$6.19$1.1MForm 4
Hoerter Steven L.directorJul 27, 2026OTHER87,820$6.19$543.6KForm 4
Alford RachaelChief Operating OfficerJul 27, 2026OTHER175,639$6.19$1.1MForm 4
Payton LoriChief Development OfficerJul 27, 2026OTHER175,639$6.19$1.1MForm 4
Ryder StevenChief Medical OfficerJul 27, 2026OTHER228,330$6.19$1.4MForm 4
Frey Rebeccadirector, officer: Chief Executive OfficerJul 27, 2026OTHER878,194$6.19$5.4MForm 4
PERCEPTIVE ADVISORS LLC10 percent ownerJul 27, 2026OTHER0——Form 4
PERCEPTIVE ADVISORS LLC10 percent ownerJul 27, 2026OTHER967,360$0.00$96.74Form 4
Zeronda TylerCHIEF FINANCIAL OFFICERJul 23, 2026TAX W/H22,516$0.90$20.2KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERJul 23, 2026TAX W/H15,405$0.90$13.8KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJul 23, 2026TAX W/H22,516$0.90$20.2KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJul 23, 2026TAX W/H79,391$0.90$71.3KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERJun 30, 2026TAX W/H3,464$0.65$2.3KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERJun 30, 2026TAX W/H2,370$0.65$1.5KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJun 30, 2026TAX W/H3,464$0.65$2.3KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJun 30, 2026TAX W/H12,214$0.65$7.9KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOMay 29, 2026AWARD30,791$0.31$9.5KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERMar 31, 2026TAX W/H4,007$0.60$2.4KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERMar 31, 2026TAX W/H2,876$0.60$1.7KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCMar 31, 2026TAX W/H4,007$0.60$2.4KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOMar 31, 2026TAX W/H14,232$0.60$8.5KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEODec 31, 2025TAX W/H12,684$0.58$7.4KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERDec 31, 2025TAX W/H7,858$0.58$4.6KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERDec 31, 2025TAX W/H2,448$0.58$1.4KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCDec 31, 2025TAX W/H3,579$0.58$2.1KForm 4
Little Elisabeth SandovaldirectorDec 12, 2025AWARD20,000$0.38$7.5KForm 4
LEPORE PATRICK GdirectorDec 12, 2025AWARD20,000$0.38$7.5KForm 4
Basta Steven LdirectorDec 12, 2025AWARD20,000$0.38$7.5KForm 4
BARBARI SHARONdirectorDec 12, 2025AWARD20,000$0.38$7.5KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERSep 30, 2025TAX W/H3,420$0.34$1.1KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERSep 30, 2025TAX W/H2,453$0.34$821.75Form 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCSep 30, 2025TAX W/H3,581$0.34$1.2KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOSep 30, 2025TAX W/H12,676$0.34$4.2KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERJun 30, 2025TAX W/H3,420$1.65$5.6KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERJun 30, 2025TAX W/H2,453$1.65$4.0KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJun 30, 2025TAX W/H3,581$1.65$5.9KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJun 30, 2025TAX W/H12,676$1.65$20.9KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJun 2, 2025AWARD1,145$0.81$927.45Form 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJun 2, 2025AWARD8,681$0.81$7.0KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERMar 31, 2025TAX W/H8,399$1.58$13.3KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERMar 31, 2025TAX W/H6,044$1.58$9.5KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCMar 31, 2025TAX W/H8,828$1.58$13.9KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOMar 31, 2025TAX W/H30,498$1.58$48.2KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERJan 21, 2025AWARD230,000$2.77$637.1KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERJan 21, 2025AWARD230,000$2.77$637.1KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJan 21, 2025AWARD230,000$2.77$637.1KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJan 21, 2025AWARD730,000$2.77$2.0MForm 4
LEPORE PATRICK GdirectorJan 15, 2025BUY15,000$2.92$43.8KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERDec 31, 2024TAX W/H4,675$3.35$15.7KForm 4
Stuart IainCHIEF SCIENTIFIC OFFICERDec 31, 2024TAX W/H4,857$3.35$16.3KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCDec 31, 2024TAX W/H4,697$3.35$15.7KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEODec 31, 2024TAX W/H24,536$3.35$82.2KForm 4
Borowski ChristinedirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
LEPORE PATRICK GdirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
Basta Steven LdirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
BARBARI SHARONdirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
Sandoval ElisabethdirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
Bruno Anthony DdirectorDec 12, 2024AWARD20,000$2.40$48.0KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEONov 30, 2024AWARD3,901$2.10$8.2KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERSep 30, 2024TAX W/H84$1.88$157.92Form 4
Stuart IainCHIEF SCIENTIFIC OFFICERSep 30, 2024TAX W/H109$1.88$204.92Form 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOSep 30, 2024TAX W/H685$1.88$1.3KForm 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCSep 30, 2024TAX W/H105$1.88$197.40Form 4
Zeronda TylerCHIEF FINANCIAL OFFICERJul 1, 2024TAX W/H92$1.92$176.64Form 4
Stuart IainCHIEF SCIENTIFIC OFFICERJul 1, 2024TAX W/H138$1.92$264.96Form 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCJul 1, 2024TAX W/H143$1.92$274.56Form 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOJul 1, 2024TAX W/H935$1.92$1.8KForm 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOMay 31, 2024AWARD4,429$2.16$9.6KForm 4
Zeronda TylerCHIEF FINANCIAL OFFICERApr 1, 2024TAX W/H94$3.08$289.52Form 4
Stuart IainCHIEF SCIENTIFIC OFFICERApr 1, 2024TAX W/H157$3.08$483.56Form 4
Harsch MutyaCHIEF LEGAL OFFICER AND GCApr 1, 2024TAX W/H161$3.08$495.88Form 4
Domzalski Daviddirector, officer: PRESIDENT AND CEOApr 1, 2024TAX W/H1,004$3.08$3.1KForm 4
Zeronda TylerChief Financial OfficerJan 1, 2024AWARD62,500——Form 4
Zeronda TylerChief Financial OfficerJan 2, 2024TAX W/H93$2.28$212.04Form 4
Zeronda TylerChief Financial OfficerJan 1, 2024AWARD62,500$2.33$145.6KForm 4
Stuart IainChief Scientific OfficerJan 1, 2024AWARD62,500——Form 4
Stuart IainChief Scientific OfficerJan 2, 2024TAX W/H157$2.28$357.96Form 4
Stuart IainChief Scientific OfficerJan 1, 2024AWARD62,500$2.33$145.6KForm 4
Harsch MutyaChief Legal Officer and GCJan 1, 2024AWARD62,500——Form 4
Harsch MutyaChief Legal Officer and GCJan 2, 2024TAX W/H161$2.28$367.08Form 4
Harsch MutyaChief Legal Officer and GCJan 1, 2024AWARD62,500$2.33$145.6KForm 4