Tamarack Advisers, LP

13F Portfolio Filings

Most recent 13F
Q4 2023
13D/G filings
13D on 1 security
Location
Carlsbad, CA
CIK
0001661462
All SEC filings
View on sec.gov
Holdings Value
Quarter Holdings Value ($000) Top Holdings Form Type Date Filed Filing ID
Q4 2023 1 2,120 STRM 13F-HR 2/8/2024 000109544924000013
Q3 2023 21 154,421 SPY Nov3 400.0 P puts, BDX Oct3 275.0 C calls, DXCM Oct3 110.0C calls, VTRS 13F-HR 11/15/2023 000109544923000090
Q2 2023 35 323,565 SPY puts, TLT calls, VTRS, MDRX 13F-HR 8/9/2023 000109544923000075
Q1 2023 39 273,602 QQQ 1Ap3 295.0 P puts, SPY Apr3 370.0 P puts, RSP Apr3 155.0 C calls, VTRS 13F-HR 5/10/2023 000109544923000047
Q4 2022 36 194,194 QQQ Jan3 270.0 P puts, MDRX, VTRS, SPY Jan3 380.0 P puts 13F-HR 2/13/2023 000109544923000030
Q3 2022 46 170,318 LNTH, MDRX, PCRX, PRGO 13F-HR 11/14/2022 000109544922000115
Q2 2022 41 172,848 CI, LNTH, CERS, PCRX 13F-HR 8/15/2022 000109544922000089
Q1 2022 49 211,350 CI, PCRX, LNTH, MRK 13F-HR 5/11/2022 000109544922000043
Q4 2021 48 243,211 THC, PCRX, MDT, BVS 13F-HR 2/14/2022 000109544922000014
Q3 2021 45 316,702 HSIC, RIGL, MDT, PCRX 13F-HR 11/12/2021 000109544921000099
Q2 2021 53 353,037 MDT, RIGL, HSIC, PCRX 13F-HR 8/13/2021 000109544921000075
Q1 2021 76 487,518 PCRX, MDT, RIGL, PDCO 13F-HR 5/11/2021 000109544921000041
Q4 2020 46 479,955 PCRX, MDT, UTHR, RIGL 13F-HR 2/10/2021 000109544921000015
Q3 2020 36 324,480 PCRX, MDT, HOLX, PRGO 13F-HR 11/12/2020 000109544920000053
Q2 2020 33 359,176 PCRX, DGX, PRGO, UTHR 13F-HR 8/11/2020 000109544920000050
Q1 2020 31 264,078 DGX, MDT, ATRC, MDRX 13F-HR 5/14/2020 000109544920000031
Q4 2019 29 437,664 MDT, BIO, MDRX, ATRC 13F-HR 2/11/2020 000109544920000011
Q3 2019 32 383,785 MDRX, MDT, BIO, PCRX 13F-HR 11/5/2019 000109544919000068
Q2 2019 22 328,883 MDRX, MDT, BIO, PCRX 13F-HR 8/12/2019 000109544919000050
Q1 2019 22 251,884 MDRX, MDT, SRCL, PTLA 13F-HR 5/13/2019 000109544919000029
Q4 2018 21 245,232 MDRX, MDT, NUVA, NOVOCURE LTD 13F-HR 2/11/2019 000109544919000007
Q3 2018 32 350,230 NUVA, NOVOCURE LTD, LH, MDRX 13F-HR 11/13/2018 000109544918000097
Q2 2018 28 298,741 NOVOCURE LTD, MDT, NUVA, MDRX 13F-HR 8/14/2018 000109544918000066
Q1 2018 28 210,233 NVCR, NUVA, MDRX, MDT 13F-HR 5/8/2018 000109544918000031
Q4 2017 32 183,207 NOVOCURE LTD, MDRX, PCRX, LH 13F-HR 2/14/2018 000109544918000014
Q3 2017 33 163,323 MDRX, NOVOCURE LTD, NKTR, MDT 13F-HR 11/13/2017 000109544917000111
Q2 2017 38 171,312 MDRX, NOVOCURE LTD, NKTR, LH 13F-HR 8/8/2017 000109544917000083
Q1 2017 31 160,058 MDRX, PCRX, NKTR, GILD 13F-HR 5/12/2017 000109544917000058
Q4 2016 27 141,372 ARIA, NXTM, HOLX, BIO RESTATEMENT 2/16/2017 000109544917000026
Q3 2016 38 317,913 ELGX, NXTM, PDCO, ARIA NEW HOLDINGS 11/10/2016 000109544916000302
Q3 2016 38 317,913 ELGX, NXTM, PDCO, ARIA 13F-HR 11/9/2016 000109544916000301
Q2 2016 28 260,704 ELGX, NXTM, IMPR, ARIA 13F-HR 8/15/2016 000109544916000274
Q1 2016 21 285,699 ELGX, DGX, PDCO, NXTM 13F-HR 5/16/2016 000109544916000245
Q4 2015 31 759,795 SPY puts, TLT calls, PDCO, DGX 13F-HR 2/8/2016 000109544916000188
Additional filings from Tamarack Advisers, LP that have since been restated

13D and 13G Filings

All 13D and 13G filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each security where the latest filing since 12/18/2024 is a 13D, newest first.

Issuer % of Class Filed
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Streamline Health Solutions Inc. 13D
STRM · 86323X106
 3.6% 11/22/2024
Event 11/13/2024