Tamarack Advisers, L.P. 13F annual report

Tamarack Advisers, L.P. is an investment fund managing more than $50.2 billion ran by Andrew Fesler. There are currently 14 companies in Mr. Fesler’s portfolio. The largest investments include Viatris Ord and Becton Dickinson Ord, together worth $13.1 billion.

$50.2 billion Assets Under Management (AUM)

As of 9th November 2023, Tamarack Advisers, L.P.’s top holding is 675,000 shares of Viatris Ord currently worth over $6.66 billion and making up 13.3% of the portfolio value. In addition, the fund holds 25,000 shares of Becton Dickinson Ord worth $6.46 billion. The third-largest holding is Veradigm Ord worth $5.72 billion and the next is Mckesson Ord worth $4.78 billion, with 11,000 shares owned.

Currently, Tamarack Advisers, L.P.'s portfolio is worth at least $50.2 billion. The total portfolio value may be much higher due to cash assets that are not publicly disclosed such as fixed income, real estate, or cash equivalents.

Careers at Tamarack Advisers, L.P.

The Tamarack Advisers, L.P. office and employees reside in Carlsbad, California. According to the last 13-F report filed with the SEC, Andrew Fesler serves as the Chief Compliance Officer at Tamarack Advisers, L.P..

Recent trades

In the most recent 13F filing, Tamarack Advisers, L.P. revealed that it had opened a new position in Becton Dickinson Ord and bought 25,000 shares worth $6.46 billion.

The investment fund also strengthened its position in Viatris Ord by buying 450,000 additional shares. This makes their stake in Viatris Ord total 675,000 shares worth $6.66 billion.

On the other hand, there are companies that Tamarack Advisers, L.P. is getting rid of from its portfolio. Tamarack Advisers, L.P. closed its position in Cigna on 15th November 2023. It sold the previously owned 75,000 shares for $18 million. Andrew Fesler also disclosed a decreased stake in Atricure Ord by 0.4%. This leaves the value of the investment at $1.75 billion and 40,000 shares.

One of the smallest hedge funds

The two most similar investment funds to Tamarack Advisers, L.P. are Steel Canyon Capital and Union Square Park Capital Management. They manage $50.2 billion and $50.2 billion respectively.


The complete list of Tamarack Advisers, L.P. trades based on 13F SEC filings

These positions were updated on November 15th based on the fund’s latest 13F filing. Quickly find out what the most recently closed or increased positions are.

Security Shares Owned Value Allocation
Viatris Ord
200.00%
675,000
$6,655,500,000 13.27%
Becton Dickinson Ord
Opened
25,000
$6,463,250,000 12.88%
Veradigm Ord
117.50%
435,000
$5,715,900,000 11.39%
Mckesson Ord
Opened
11,000
$4,783,350,000 9.53%
Streamline Health Solutions Ord
Opened
4,930,882
$4,770,628,000 9.51%
Collegium Pharmaceutical Ord
Opened
185,000
$4,134,750,000 8.24%
Phreesia Ord
22.86%
215,000
$4,016,200,000 8.01%
Angiodynamics Ord
48.44%
475,000
$3,472,250,000 6.92%
Tactile Systems Technology Ord
94.88%
239,222
$3,361,069,000 6.70%
Atricure Ord
38.46%
40,000
$1,752,000,000 3.49%
Sanofi Adr Rep 1 1/2 Ord
Opened
30,000
$1,609,200,000 3.21%
Tenet Healthcare Ord
73.33%
20,000
$1,317,800,000 2.63%
Si Bone Ord
89.47%
50,000
$1,062,000,000 2.12%
Cerus Ord
60.61%
650,000
$1,053,000,000 2.10%
Cigna Group (The)
Closed
75,000
$17,971,000
Pacira BioSciences Inc
Closed
205,000
$15,646,000
Lantheus Holdings Inc
Closed
250,000
$13,828,000
Merck & Co Inc
Closed
155,000
$12,718,000
Bioventus Inc - A
Closed
825,001
$11,633,000
Rigel Pharmaceuticals
Closed
3,250,000
$9,718,000
Medtronic Plc
Closed
75,000
$8,321,000
Turning Point Brands Inc
Closed
200,000
$6,802,000
Perrigo Co Plc
Closed
175,000
$6,725,000
IVERIC bio Inc
Closed
370,000
$6,227,000
CVS Health Corp
Closed
50,000
$5,061,000
Inmode Ltd
Closed
130,000
$4,798,000
Jazz Pharmaceuticals plc
Closed
30,000
$4,670,000
Exelixis Inc
Closed
200,000
$4,534,000
Gilead Sciences, Inc.
Closed
75,000
$4,459,000
Henry Schein Inc.
Closed
50,000
$4,360,000
ViewRay Inc.
Closed
600,000
$2,352,000
Somalogic Inc
Closed
295,000
$2,249,000
Covetrus, Inc.
Closed
129,000
$2,166,000
Unitedhealth Group Inc
Closed
4,000
$2,040,000
Biocryst Pharmaceuticals Inc.
Closed
125,000
$2,033,000
Patterson Cos Inc
Closed
50,000
$1,619,000
Hologic, Inc.
Closed
15,000
$1,152,000
Radnet Inc
Closed
50,000
$1,119,000
Trulieve Cannabis Corp
Closed
50,000
$1,053,000
NextGen Healthcare Inc
Closed
50,000
$1,046,000
Docgo Inc
Closed
110,000
$1,018,000
DermTech, Inc.
Closed
50,000
$734,000
Verano Holdings Corp
Closed
50,000
$497,000
Terrascend Corp
Closed
75,000
$428,000
Plexus Corp.
Closed
5,000
$409,000
AdaptHealth Corp.
Closed
20,000
$321,000
No transactions found
Showing first 500 out of 46 holdings