Tamarack Advisers, LP

13F Portfolio Filings

Latest 13F report
Q4 2023 - Feb 9, 2024
Value $
$2.12M
Signature - Title
Andrew H. Fesler - Chief Compliance Officer
Location
5050 Avenida Encinas, Suite 360, Carlsbad, CA
Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Date Filed
Q4 2023 1 $2.12M $0 -$45.4M -$45.4M STRM 13F-HR 2/8/2024, 05:42 PM
Q3 2023 14 $50.2M +$2.66M -$70.4M -$67.7M VTRS, BDX, MDRX, MCK, STRM 13F-HR 11/15/2023, 09:55 PM
Q2 2023 30 $132M +$30.5M -$35.5M -$4.94M VTRS, MDRX, PHR, COLL, THC 13F-HR 8/9/2023, 06:28 PM
Q1 2023 34 $131M +$31.8M -$37.5M -$5.69M VTRS, MDRX, PHR, STRM, COLL 13F-HR 5/10/2023, 06:06 PM
Q4 2022 32 $138M +$32.2M -$65.7M -$33.5M MDRX, VTRS, PHR, CERS, COLL 13F-HR 2/10/2023, 07:09 PM
Q3 2022 42 $169M +$47M -$47.2M -$296K LNTH, MDRX, PCRX, PRGO, THC 13F-HR 11/14/2022, 07:12 PM
Q2 2022 39 $172M +$62.4M -$66.8M -$4.42M CI, LNTH, CERS, PCRX, THC 13F-HR 8/15/2022, 06:39 PM
Q1 2022 42 $209M +$70.5M -$108M -$37M CI, PCRX, LNTH, MRK, BVS 13F-HR 5/11/2022, 03:28 PM
Q4 2021 44 $242M +$89.4M -$148M -$58.7M THC, PCRX, MDT, BVS, SIBN 13F-HR 2/11/2022, 07:04 PM
Q3 2021 36 $312M +$58.4M -$83.4M -$25M HSIC, RIGL, MDT, PCRX, PDCO 13F-HR 11/10/2021, 06:30 PM
Q2 2021 40 $349M +$68.2M -$235M -$167M MDT, RIGL, HSIC, PCRX, TPB 13F-HR 8/12/2021, 08:08 PM
Q1 2021 54 $482M +$128M -$161M -$33.3M PCRX, MDT, RIGL, PDCO, TPB 13F-HR 5/11/2021, 08:31 PM
Q4 2020 38 $470M +$132M -$42M +$90.2M PCRX, MDT, UTHR, RIGL, NUAN 13F-HR 2/9/2021, 05:32 PM
Q3 2020 29 $319M +$56.9M -$96.7M -$39.8M PCRX, MDT, HOLX, PRGO, RIGL 13F-HR 11/10/2020, 08:19 PM
Q2 2020 29 $348M +$106M -$86.3M +$20.1M PCRX, DGX, PRGO, UTHR, HOLX 13F-HR 8/10/2020, 06:07 PM
Q1 2020 30 $260M +$78.6M -$179M -$100M DGX, MDT, ATRC, MDRX, PRGO 13F-HR 5/14/2020, 01:48 PM
Q4 2019 25 $437M +$87.5M -$65.4M +$22.1M MDT, BIO, MDRX, ATRC, PCRX 13F-HR 2/10/2020, 08:48 PM
Q3 2019 25 $382M +$89.8M -$31.7M +$58.1M MDRX, MDT, BIO, PCRX, PTLA 13F-HR 11/5/2019, 03:42 PM
Q2 2019 19 $329M +$111M -$39M +$71.6M MDRX, MDT, BIO, PCRX, SRCL 13F-HR 8/12/2019, 04:58 PM
Q1 2019 20 $251M +$66M -$88.7M -$22.8M MDRX, MDT, SRCL, PTLA, LNTH 13F-HR 5/13/2019, 03:29 PM
Q4 2018 20 $245M +$44.1M -$80.7M -$36.6M MDRX, MDT, NUVA, ATRC, NXTM 13F-HR 2/11/2019, 05:25 PM
Q3 2018 24 $348M +$61.8M -$54.7M +$7.1M NUVA, LH, MDRX, MDT, SRCL 13F-HR 11/13/2018, 01:26 PM
Q2 2018 25 $297M +$152M -$67.4M +$84.1M MDT, NUVA, MDRX, LH, OPTN 13F-HR 8/14/2018, 12:53 PM
Q1 2018 27 $210M +$105M -$70.9M +$33.7M NVCR, NUVA, MDRX, MDT, CORI 13F-HR 5/7/2018, 08:11 PM
Q4 2017 25 $181M +$52.3M -$51.1M +$1.12M MDRX, PCRX, LH, NUVA, MDT 13F-HR 2/13/2018, 06:52 PM
Q3 2017 23 $161M +$45.7M -$58.9M -$13.3M MDRX, NKTR, MDT, CORI, GILD 13F-HR 11/13/2017, 01:33 PM
Q2 2017 26 $170M +$30.3M -$40.3M -$10M MDRX, NKTR, LH, PCRX, SPNC 13F-HR 8/7/2017, 06:30 PM
Q1 2017 31 $160M +$56.8M -$54.3M +$2.56M MDRX, PCRX, NKTR, GILD, SPNC 13F-HR 5/12/2017, 03:55 PM
Q4 2016 27 $141M +$42.5M -$207M -$164M ARIA, NXTM, HOLX, BIO, PCRX Restatement 2/16/2017, 03:04 PM
Q3 2016 31 $314M $0 $0 ELGX, NXTM, PDCO, ARIA, BIO New Holdings 11/9/2016, 06:44 PM
Q3 2016 31 $314M +$88M -$86.3M +$1.71M ELGX, NXTM, PDCO, ARIA, BIO 13F-HR 11/8/2016, 07:01 PM
Q2 2016 28 $258M +$64.8M -$113M -$47.8M ELGX, NXTM, IMPR, ARIA, DGX 13F-HR 8/12/2016, 05:49 PM
Q1 2016 19 $285M +$34.8M -$225M -$190M ELGX, DGX, PDCO, NXTM, MDRX 13F-HR 5/13/2016, 08:04 PM
Q4 2015 26 $525M $0 $0 PDCO, DGX, ELGX, NXTM, MDT 13F-HR 2/8/2016, 03:20 PM