Foghorn Therapeutics Inc.
US ˙ NasdaqGM ˙ US3441741077

SecurityFHTX / Foghorn Therapeutics Inc.
InstitutionDeerfield Management Company, L.p. (series C)
Latest Disclosed Ownership4,394,367 shares
Latest Disclosed Value $ 21,005,074
Deerfield Management Company, L.p. (series C) reports 20.42% increase in ownership of FHTX / Foghorn Therapeutics Inc.

On May 15, 2026 - Deerfield Management Company, L.p. (series C) filed a 13F-HR form disclosing ownership of 4,394,367 shares of Foghorn Therapeutics Inc. (US:FHTX) valued at $21,005,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,649,211 shares of Foghorn Therapeutics Inc.. This represents a change in shares of 20.42% during the quarter. The current value of the position is $15,995,496 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)
2026-05-15 2026-03-31 13F FOGHORN THERAPEUTICS COM 344174107 4,394,367 745,156 20.42 21,005 6.60 0.2478
2026-02-17 2025-12-31 13F FOGHORN THERAPEUTICS COM 344174107 3,649,211 393,697 12.09 19,706 23.78 0.2517
2025-11-14 2025-09-30 13F FOGHORN THERAPEUTICS COM 344174107 3,255,514 0 0.00 15,919 4.05 0.2430
2025-08-14 2025-06-30 13F FOGHORN THERAPEUTICS COM 344174107 3,255,514 0 0.00 15,301 28.77 0.2777
2025-05-15 2025-03-31 13F FOGHORN THERAPEUTICS COM 344174107 3,255,514 0 0.00 11,883 -22.67 0.2346
2025-02-14 2024-12-31 13F FOGHORN THERAPEUTICS COM 344174107 3,255,514 227,628 7.52 15,366 -45.49 0.2910
2024-11-14 2024-09-30 13F FOGHORN THERAPEUTICS COM 344174107 3,027,886 509,386 20.23 28,190 94.66 0.4212
2024-08-14 2024-06-30 13F FOGHORN THERAPEUTICS COM 344174107 2,518,500 2,518,500 14,481 0.2409
2024-02-14 2023-12-31 13F FOGHORN THERAPEUTICS COM 344174107 0 -777,525 -100.00 0 -100.00
2023-11-14 2023-09-30 13F FOGHORN THERAPEUTICS COM 344174107 777,525 0 0.00 3,888 -28.98 0.0857
2023-08-14 2023-06-30 13F FOGHORN THERAPEUTICS COM 344174107 777,525 0 0.00 5,474 13.55 0.1169
2023-05-15 2023-03-31 13F FOGHORN THERAPEUTICS COM 344174107 777,525 0 0.00 4,821 -2.82 0.1075
2023-02-14 2022-12-31 13F FOGHORN THERAPEUTICS COM 344174107 777,525 0 0.00 4,961 -25.65 0.1027
2022-11-14 2022-09-30 13F FOGHORN THERAPEUTICS COM 344174107 777,525 0 0.00 6,671 -36.91 0.1328
2022-08-15 2022-06-30 13F FOGHORN THERAPEUTICS COM 344174107 777,525 538,660 225.51 10,574 190.65 0.2181
2022-05-16 2022-03-31 13F FOGHORN THERAPEUTICS COM 344174107 238,865 238,865 3,638 0.0813
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.