Phathom Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US71722W1071

SecurityPHAT / Phathom Pharmaceuticals, Inc.
InstitutionGhost Tree Capital, LLC
Latest Disclosed Ownership375,000 shares
Latest Disclosed Value $ 6,780,000
Ghost Tree Capital, LLC reports 37.50% decrease in ownership of PHAT / Phathom Pharmaceuticals, Inc.

On November 14, 2024 - Ghost Tree Capital, LLC filed a 13F-HR form disclosing ownership of 375,000 shares of Phathom Pharmaceuticals, Inc. (US:PHAT) valued at $6,780,000 USD as of September 30, 2024. The entity filed a previous 13F-HR on August 14, 2024 disclosing 600,000 shares of Phathom Pharmaceuticals, Inc.. This represents a change in shares of -37.50% during the quarter. The current value of the position is $3,783,750 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2024-11-14 2024-09-30 13F PHATHOM PHARMACEUTICALS COM 71722W107 375,000 -225,000 -37.50 6,780 9.71 2.0481
2024-08-14 2024-06-30 13F PHATHOM PHARMACEUTICALS COM 71722W107 600,000 115,000 23.71 6,180 20.00 1.9352
2024-05-15 2024-03-31 13F PHATHOM PHARMACEUTICALS COM 71722W107 485,000 99,759 25.90 5,151 46.43 1.4256
2024-02-14 2023-12-31 13F PHATHOM PHARMACEUTICALS COM 71722W107 385,241 -9,759 -2.47 3,517 -14.14 1.1499
2023-11-14 2023-09-30 13F PHATHOM PHARMACEUTICALS COM 71722W107 395,000 240,750 156.08 4,096 85.51 1.3471
2023-08-14 2023-06-30 13F PHATHOM PHARMACEUTICALS COM 71722W107 154,250 154,250 2,209 0.7292
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.