Ghost Tree Capital 13F annual report

Ghost Tree Capital is an investment fund managing more than $287 billion ran by Matthew Diaz. There are currently 59 companies in Mr. Diaz’s portfolio. The largest investments include Biohaven Ltd and Moonlake Immunotherapeutics, together worth $30.2 billion.

Limited to 30 biggest holdings

$287 billion Assets Under Management (AUM)

As of 7th August 2024, Ghost Tree Capital’s top holding is 490,000 shares of Biohaven Ltd currently worth over $17 billion and making up 5.9% of the portfolio value. Relative to the number of outstanding shares of Biohaven Ltd, Ghost Tree Capital owns more than approximately 0.1% of the company. In addition, the fund holds 300,000 shares of Moonlake Immunotherapeutics worth $13.2 billion. The third-largest holding is Soleno Therapeutics Inc worth $12.2 billion and the next is Axsome Therapeutics Inc worth $12.1 billion, with 150,000 shares owned.

Currently, Ghost Tree Capital's portfolio is worth at least $287 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 Ghost Tree Capital

The Ghost Tree Capital office and employees reside in New York, New York. According to the last 13-F report filed with the SEC, Matthew Diaz serves as the CHIEF COMPLIANCE OFFICER at Ghost Tree Capital.

Recent trades

In the most recent 13F filing, Ghost Tree Capital revealed that it had opened a new position in Ascendis Pharma A/S and bought 86,721 shares worth $11.8 billion. This means they effectively own approximately 0.1% of the company. Ascendis Pharma A/S makes up 6.3% of the fund's Health Care sector allocation and has grown its share price by 51.5% in the past year.

The investment fund also strengthened its position in Biohaven Ltd by buying 205,000 additional shares. This makes their stake in Biohaven Ltd total 490,000 shares worth $17 billion. Biohaven Ltd soared 91.6% in the past year.

On the other hand, there are companies that Ghost Tree Capital is getting rid of from its portfolio. Ghost Tree Capital closed its position in Perspective Therapeutics Inc on 14th August 2024. It sold the previously owned 6,000,000 shares for $7.14 billion. Matthew Diaz also disclosed a decreased stake in Axsome Therapeutics Inc by 0.3%. This leaves the value of the investment at $12.1 billion and 150,000 shares.

One of the smaller hedge funds

The two most similar investment funds to Ghost Tree Capital are Main Street Ltd and Sio Capital Management. They manage $288 billion and $287 billion respectively.


Matthew Diaz investment strategy

Ghost Tree Capital’s portfolio is diversified across 2 sectors. Currently, their heaviest sector is Health Care — making up 65.3% of the total portfolio value. The fund focuses on investments in the United States as 61.0% of the portfolio companies are based in the United States.

The majority of the companies in the fund’s portfolio are small-cap stocks. Stocks with a size of more than $100 million in market cap make up 8% of the total holdings value. On the other hand, large-cap stocks make up only 3.4% of the portfolio. The average market cap of the portfolio companies is close to $2.63 billion.

The complete list of Ghost Tree Capital trades based on 13F SEC filings

These positions were updated on August 14th 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
Biohaven Ltd
71.93%
490,000
$17,007,900,000 5.92%
Moonlake Immunotherapeutics
No change
300,000
$13,191,000,000 4.59%
Soleno Therapeutics Inc
50.00%
300,000
$12,240,000,000 4.26%
Axsome Therapeutics Inc
28.57%
150,000
$12,075,000,000 4.20%
Ascendis Pharma A/S
Opened
86,721
$11,827,010,000 4.12%
Vaxcyte, Inc.
57.89%
150,000
$11,326,500,000 3.94%
Crinetics Pharmaceuticals In
20.00%
240,000
$10,749,600,000 3.74%
Roivant Sciences Ltd
23.08%
1,000,000
$10,570,000,000 3.68%
Perspective Therapeutics Inc
Opened
925,000
$9,222,250,000 3.21%
TG Therapeutics Inc
39.39%
500,000
$8,895,000,000 3.10%
Sarepta Therapeutics Inc
56.00%
55,000
$8,690,000,000 3.02%
Cg Oncology Inc
246.67%
260,000
$8,208,200,000 2.86%
Corbus Pharmaceuticals Hldgs
207.34%
175,000
$7,918,750,000 2.76%
Viridian Therapeutics Inc
5.97%
587,708
$7,646,081,000 2.66%
Syndax Pharmaceuticals Inc
133.33%
350,000
$7,185,500,000 2.50%
Perspective Therapeutics Inc
Closed
6,000,000
$7,140,000,000
Immunovant Inc
108.00%
260,000
$6,864,000,000 2.39%
Aerovate Therapeutics Inc
Closed
225,000
$6,653,250,000
Tarsus Pharmaceuticals, Inc.
21.67%
235,000
$6,387,300,000 2.22%
Phathom Pharmaceuticals Inc
23.71%
600,000
$6,180,000,000 2.15%
Rezolute Inc
Opened
1,421,501
$6,112,454,000 2.13%
Olema Pharmaceuticals, Inc.
175.00%
550,000
$5,951,000,000 2.07%
Spyre Therapeutics Inc
150.24%
250,237
$5,883,072,000 2.05%
Alnylam Pharmaceuticals Inc
62.50%
22,500
$5,467,500,000 1.90%
Apellis Pharmaceuticals Inc
3.85%
135,000
$5,178,600,000 1.80%
Viking Therapeutics Inc
30.13%
95,000
$5,035,950,000 1.75%
Rhythm Pharmaceuticals Inc.
6.09%
117,388
$4,819,951,000 1.68%
Insmed Inc
56.67%
65,000
$4,355,000,000 1.52%
Blueprint Medicines Corp
45.03%
40,000
$4,311,200,000 1.50%
Savara Inc
34.32%
1,050,876
$4,235,030,000 1.47%
Tenaya Therapeutics Inc
74.19%
1,350,000
$4,185,000,000 1.46%
Replimune Group Inc
30.77%
450,000
$4,050,000,000 1.41%
Engene Holdings Inc
110.17%
420,331
$3,963,721,000 1.38%
Acadia Pharmaceuticals Inc
No change
225,000
$3,656,250,000 1.27%
BridgeBio Pharma Inc
20.00%
140,000
$3,546,200,000 1.23%
Korro Bio Inc
Opened
100,000
$3,387,000,000 1.18%
Nuvation Bio Inc
Opened
1,150,000
$3,358,000,000 1.17%
Structure Therapeutics Inc
Closed
75,000
$3,214,500,000
Helix Acquisition Corp Ii
No change
300,000
$3,066,000,000 1.07%
Cogent Biosciences, Inc.
Closed
450,000
$3,024,000,000
Aquestive Therapeutics Inc
Closed
702,941
$2,994,529,000
Taysha Gene Therapies, Inc.
31.58%
1,250,000
$2,800,000,000 0.97%
Deciphera Pharmaceuticals In
Closed
176,513
$2,776,549,000
Cabaletta Bio Inc
1.09%
370,899
$2,774,325,000 0.97%
Geron Corp.
Closed
800,000
$2,640,000,000
Marinus Pharmaceuticals Inc
Closed
285,000
$2,576,400,000
Neurogene Inc
180.00%
70,000
$2,547,300,000 0.89%
Altimmune Inc
Closed
250,000
$2,545,000,000
KalVista Pharmaceuticals Inc
Closed
200,000
$2,372,000,000
Natera Inc
Closed
25,000
$2,286,500,000
Protagonist Therapeutics Inc
Closed
75,000
$2,169,750,000
Janux Therapeutics Inc
Opened
50,000
$2,094,500,000 0.73%
Arvinas Inc
87.50%
75,000
$1,996,500,000 0.69%
Regenxbio Inc
41.67%
170,000
$1,989,000,000 0.69%
EyePoint Pharmaceuticals Inc
Closed
90,000
$1,860,300,000
Cytokinetics Inc
66.00%
33,200
$1,798,776,000 0.63%
Madrigal Pharmaceuticals Inc
Closed
6,500
$1,735,760,000
Elevation Oncology Inc
140.00%
600,000
$1,620,000,000 0.56%
Astria Therapeutics Inc
Closed
115,000
$1,618,625,000
Larimar Therapeutics, Inc.
Closed
210,603
$1,598,477,000
Krystal Biotech Inc
39.29%
8,500
$1,560,940,000 0.54%
Annexon Inc
Opened
310,000
$1,519,000,000 0.53%
Proqr Thrapeutics N V
Opened
900,000
$1,494,000,000 0.52%
Atyr Pharma Inc
33.33%
800,000
$1,248,000,000 0.43%
Wave Life Sciences Ltd.
Opened
200,000
$998,000,000 0.35%
Ultragenyx Pharmaceutical In
Closed
20,000
$933,800,000
Arrowhead Pharmaceuticals In
No change
35,000
$909,650,000 0.32%
Uniqure Nv
Closed
165,000
$858,000,000
Sagimet Biosciences Inc
No change
225,000
$769,500,000 0.27%
Intra-Cellular Therapies Inc
Opened
10,000
$684,900,000 0.24%
Macrogenics Inc
Opened
150,000
$637,500,000 0.22%
Pmv Pharmaceuticals Inc
44.44%
375,000
$607,500,000 0.21%
PTC Therapeutics Inc
Opened
19,000
$581,020,000 0.20%
Revance Therapeutics Inc
50.00%
225,000
$578,250,000 0.20%
Intellia Therapeutics Inc
No change
25,000
$559,500,000 0.19%
An2 Therapeutics Inc
No change
219,331
$471,562,000 0.16%
CytomX Therapeutics Inc
50.00%
300,000
$366,000,000 0.13%
No transactions found
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