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Tamarack Advisers, LP

Q1 2023 Holdings

Filed 2023-05-11 | 39 holdings | $273.6M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
QQQ 1Ap3 295.0 PPutListed Option46090E953$80.2M250,00029.3%
SPY Apr3 370.0 PPutListed Option78462F953$40.9M100,00015.0%
RSP Apr3 155.0 CCallListed Option46137V907$14.5M100,0005.3%
Viatris ORD(VTRS)Equity92556V106$14.4M1,500,0005.3%
Veradigm ORD(MDRX)Equity01988P108$12.4M950,0004.5%
Phreesia ORD(PHR)Equity71944F106$10.3M320,0003.8%
Streamline Health Solutions ORDEquity86323X106$8.9M4,930,8823.2%
Collegium Pharmaceutical ORD(COLL)Equity19459J104$8.5M355,0003.1%
Amgen ORD(AMGN)Equity031162100$7.3M30,0002.7%
Cerus ORD(CERS)Equity157085101$6.7M2,250,0002.4%
Tenet Healthcare ORD(THC)Equity88033G407$5.9M100,0002.2%
Tactile Systems Technology ORD(TCMD)Equity87357P100$5.9M360,0002.2%
SI Bone ORD(SIBN)Equity825704109$5.4M275,0002.0%
Radnet ORD(RDNT)Equity750491102$5.3M211,5001.9%
Docgo ORD(DCGO)Equity256086109$5.3M610,0001.9%
Sanofi ADR REP 1 1/2 ORD(SNY)Equity80105N105$5.2M95,0001.9%
Angiodynamics ORD(ANGO)Equity03475V101$4.9M475,0001.8%
Tdoc Apr3 20.0 PPutListed Option87918A955$3.9M150,0001.4%
Inmode ORD(INMD)EquityM5425M103$3.7M115,0001.3%
THC Apr3 60.0 CCallListed Option88033G907$3.0M50,0001.1%
Rigel Pharmaceuticals ORD(RIGLUSD)Equity766559603$2.6M2,000,0001.0%
Ironwood Pharma CL A ORD(IRWD)Equity46333X108$2.2M210,0000.8%
Ascendis Pharma ADR REP ORD(ASND)Equity04351P101$2.1M20,0000.8%
Alkermes ORD(ALKS)EquityG01767105$2.1M75,0000.8%
Neogen ORD(NEOG)Equity640491106$1.9M100,0000.7%
Atricure ORD(ATRC)Equity04963C209$1.7M40,3760.6%
United Therapeutics ORD(UTHR)Equity91307C102$1.3M6,0000.5%
Fennec Pharmaceuticals ORD(FENC)Equity31447P100$1.2M149,2000.5%
Somalogic CL A ORD(SLGCUSD)Equity83444K105$1.2M475,0000.4%
Mckesson ORD(MCK)Equity58155Q103$1.1M3,0000.4%
Select Medical Holdings ORD(SEM)Equity81619Q105$646.3K25,0000.2%
Olink Holding AB Publ ADREquity680710100$642.1K28,5000.2%
Maxcyte ORD(MXCT)Equity57777K106$495.0K100,0000.2%
ICU Medical ORD(ICUI)Equity44930G107$494.9K3,0000.2%
BIO RAD Laboratories CL A ORD(BIO)Equity090572207$479.0K1,0000.2%
Pacira Biosciences ORD(PCRX)Equity695127100$408.1K10,0000.1%
Nanostring Technologies ORD(NSTGEUR)Equity63009R109$247.5K25,0000.1%
BIO Techne ORD(TECH)Equity09073M104$74.2K1,0000.0%
Somalogic EQY WarrantWarrant83444K113$51.0K20,0000.0%