Checkpoint Capital L.P. — 13F Holdings & Portfolio
CIK 1977548 · latest 13F-HR filed 2026-08-14
Checkpoint Capital L.P. manages $389.8M in 13F-reported U.S. long-equity assets across 6 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are RYTM (33.79%), ARGX (31.25%), RVMD (19.72%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions and exited 2; 5 existing positions rose in reported value and 0 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 100%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 27, 2026.
SUITE 600
SAN FRANCISCO, CA 94104
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| CHECKPOINT GP LLC Control | GENERAL PARTNER since Apr 2023 | Less than 5% | Domestic Entity |
| HUANG, KUNG-TAO, SAMUEL Control | LIMITED PARTNER since Apr 2023 | 75% or more | Individual |
| Berta, Tony, Michael | CFO since Apr 2023 | Less than 5% | Individual |
| NURTMAN, HOWARD, IAN | CHIEF COMPLIANCE OFFICER since Jun 2025 | Less than 5% | Individual |
| HUANG, KUNG-TAO, SAMUEL Control Indirect owner via CHECKPOINT GP LLC | MANAGING MEMBER since Apr 2023 | 75% or more | Individual |
Ownership & leadership changes · 4 filings with changes since Jun 15, 2023
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- ChangedBerta, Tony, Michael · no longer a control person
- ChangedHUANG, KUNG-TAO, SAMUEL · title MANAGING MEMBER → LIMITED PARTNER
- ChangedNURTMAN, HOWARD, IAN · no longer a control person
- AddedNURTMAN, HOWARD, IAN · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- AddedCHECKPOINT GP LLC · GENERAL PARTNER · Less than 5% · control person
- AddedHUANG, KUNG-TAO, SAMUEL · MANAGING MEMBER · 75% or more · indirect via CHECKPOINT GP LLC · control person
- AddedBerta, Tony, Michael · CFO · Less than 5% · control person
- ListedHUANG, KUNG-TAO, SAMUEL · MANAGING MEMBER · 75% or more · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- REVOLUTION MEDICINES INC$51.3M +201.0%
- CYTOKINETICS INC$28.6M +241.1%
- RHYTHM PHARMACEUTICALS INC$25.0M +23.4%
- ARGENX SE$10.1M +9.0%
- TREVI THERAPEUTICS INC$802.2K +134.5%
Checkpoint Capital L.P. Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | RHYTHM PHARMACEUTICALS INC | RYTM | 76243J105 | $131.7M | 33.79% | 1,186,000 | SH |
| 2 | ARGENX SE | ARGX | 04016X101 | $121.8M | 31.25% | 131,283 | SH |
| 3 | REVOLUTION MEDICINES INC | RVMD | 76155X100 | $76.9M | 19.72% | 410,353 | SH |
| 4 | CYTOKINETICS INC | CYTK | 23282W605 | $40.5M | 10.38% | 475,000 | SH |
| 5 | DISC MEDICINE INC | IRON | 254604101 | $17.6M | 4.51% | 240,125 | SH |
| 6 | TREVI THERAPEUTICS INC | TRVI | 89532M101 | $1.4M | 0.36% | 75,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $389.8M | 6 | 0001977548-26-000005 |
| 2026-03-31 | 2026-05-15 | $278.7M | 8 | 0001977548-26-000004 |
| 2025-12-31 | 2026-02-17 | $320.1M | 7 | 0001977548-26-000002 |
| 2025-09-30 | 2025-11-14 | $298.5M | 10 | 0001977548-25-000008 |
SUITE 600
SAN FRANCISCO, CA 94104