DP
Diadema Partners LP SEC 13F Holdings (Q2 2026) — Top Position: ABIVAX SA-ADR
Diadema Partners LPCIK: 0002026172
Diversified strategyHigh-turnover traderSector-focused
Total reported value
$791.3M
Reporting period: 2026-06-30 · Number of holdings: 149
DIADEMA PARTNERS LP disclosed 149 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $791.3M and a quarterly turnover rate of 102.1%.
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Personality snowflake
- Concentration
- 17.27
- Portfolio Stability
- 100
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 100
- Sizing Uniformity
- 79.9
Diadema Partners LP's disclosed holdings carry a Herfindahl concentration index of 0.043 — mathematically equivalent to about 23 equally-sized positions, well below its 149 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.01), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 45% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd ABVX
+177.3% $71.3M
Sold out VRTX
New buy BMY
Trim UTHR
-39.4% -$23.2M
Sold out LQDA
Add VKTX
+70.0% $40.0M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 116 holdings (of 149 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | ABVX | Abivax Sa-adr | Stock-Other | 12.86% | +7.67% | +177.32% | |
| 2 | VKTX | Viking Therapeutics Inc | Stock-Healthcare | 9.92% | +3.36% | +69.97% | |
| 3 | BMY | Bristol-myers Squibb Co | Stock-Healthcare | 6.78% | +6.78% | NEW | |
| 4 | UTHR | United Therapeutics CORP | Stock-Healthcare | 3.63% | -5.20% | -39.44% | |
| 5 | RVMD | Revolution Medicines Inc | Stock-Healthcare | 3.29% | -0.12% | -32.54% | |
| 6 | QURE | uniQure N.V. | Stock-Other | 3.11% | +1.50% | -7.89% | |
| 7 | NVS | Novartis Ag-sponsored Adr | Stock-Healthcare | 2.97% | +2.97% | NEW | |
| 8 | KOD | Kodiak Sciences Inc | Stock-Other | 2.77% | -0.08% | +27.64% | |
| 9 | CAPR | Capricor Therapeutics Inc | Stock-Other | 2.63% | -2.71% | -16.27% | |
| 10 | COGT | Cogent Biosciences Inc | Stock-Other | 2.41% | +0.30% | +52.95% | |
| 11 | BBIO 1.75 03-01-31Bond | Bridgebio Pharma Inc | Bond | 2.35% | -0.81% | — | |
| 12 | CORT | Corcept Therapeutics Inc | Stock-Healthcare | 2.27% | +1.11% | +22.43% | |
| 13 | BMRN | Biomarin Pharmaceutical Inc | Stock-Healthcare | 2.26% | +0.84% | +111.06% | |
| 14 | KYMR | Kymera Therapeutics Inc | Stock-Other | 2.17% | +2.17% | NEW | |
| 15 | SMMT | Summit Therapeutics Inc | Stock-Other | 2.06% | +2.06% | NEW | |
| 16 | HIMS | Hims & Hers Health Inc | Stock-Healthcare | 1.72% | +1.72% | NEW | |
| 17 | REPL | Replimune Group Inc | Stock-Other | 1.68% | +0.68% | +56.49% | |
| 18 | BIIB | Biogen Inc | Stock-Healthcare | 1.64% | +1.64% | NEW | |
| 19 | LLY | Eli Lilly & Co | Stock-Healthcare | 1.52% | +0.58% | +66.67% | |
| 20 | INCY | Incyte CORP | Stock-Healthcare | 1.51% | -1.43% | -42.54% | |
| 21 | EWTX | Edgewise Therapeutics Inc | Stock-Other | 1.40% | +0.26% | +28.10% | |
| 22 | RCUS | Arcus Biosciences Inc | Stock-Other | 1.36% | +0.48% | +46.05% | |
| 23 | BNTX | Biontech Se-adr | Stock-Other | 1.18% | +1.18% | NEW | |
| 24 | CRBP | Corbus Pharmaceuticals Holdi | Stock-Other | 1.11% | +0.22% | +68.40% | |
| 25 | PCVX | Vaxcyte Inc | Stock-Other | 1.08% | +0.31% | +88.14% | |
| 26 | BIOA | Bioage Labs Inc | Stock-Other | 1.07% | +0.89% | +477.39% | |
| 27 | IMCR | Immunocore Holdings Plc-adr | Stock-Other | 1.02% | +0.03% | +31.92% | |
| 28 | FDMT | 4d Molecular Therapeutics In | Stock-Other | 0.96% | +0.96% | NEW | |
| 29 | NVO | Novo-nordisk A/s-spons Adr | Stock-Healthcare | 0.95% | +0.51% | +121.21% | |
| 30 | SLS | Sellas Life Sciences Group I | Stock-Other | 0.93% | +0.71% | +66.67% | |
| 31 | MRNA | Moderna Inc | Stock-Healthcare | 0.88% | -0.50% | -37.26% | |
| 32 | CRVS | Corvus Pharmaceuticals Inc | Stock-Other | 0.81% | -0.06% | +21.96% | |
| 33 | GLUE | Monte Rosa Therapeutics Inc | Stock-Other | 0.76% | +0.24% | +32.67% | |
| 34 | ALMS | Alumis Inc | Stock-Other | 0.71% | +0.22% | +52.44% | |
| 35 | RPRX | Royalty Pharma plc | Stock-Healthcare | 0.71% | +0.71% | NEW | |
| 36 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.71% | -1.53% | -59.09% | |
| 37 | UNCY | Unicycive Therapeutics Inc | Stock-Other | 0.65% | +0.53% | +933.41% | |
| 38 | CLDX | Celldex Therapeutics Inc | Stock-Other | 0.64% | +0.64% | NEW | |
| 39 | BHVN | Biohaven Ltd. | Stock-Other | 0.60% | +0.14% | — | |
| 40 | VERA | Vera Therapeutics Inc | Stock-Other | 0.58% | +0.58% | NEW | |
| 41 | TENX | Tenax Therapeutics Inc | Stock-Other | 0.56% | +0.07% | +70.80% | |
| 42 | RLAY | Relay Therapeutics Inc | Stock-Other | 0.55% | +0.55% | NEW | |
| 43 | TGTX | Tg Therapeutics Inc | Stock-Healthcare | 0.53% | -0.64% | -63.42% | |
| 44 | AMGN | Amgen Inc | Stock-Healthcare | 0.48% | +0.48% | NEW | |
| 45 | ZYME | Zymeworks Inc | Stock-Other | 0.47% | -0.14% | — | |
| 46 | TSHA | Taysha Gene Therapies Inc | Stock-Other | 0.45% | +0.45% | NEW | |
| 47 | NTLA | Intellia Therapeutics Inc | Stock-Other | 0.43% | -0.01% | — | |
| 48 | NRIX | Nurix Therapeutics Inc | Stock-Other | 0.37% | +0.37% | NEW | |
| 49 | INDV | Indivior Pharmaceuticals Inc | Stock-Other | 0.35% | -0.02% | -5.41% | |
| 50 | IVA | Inventiva SA - Adr | Stock-Other | 0.34% | +0.01% | +110.21% |
1–50 of 116
Portfolio Performance
Performance for Q3 2026
+11.2%
Performance Last 4 Quarters
+58.4%
- Stdev
- +22.1%
- Beta
- +0.09
- Alpha
- +29.9%
- Max Drawdown
- -7.9%
- Annualized Perf
- +33.5%
- Batting Avg vs S&P
- +61.1%
- Sortino
- +3.14
- Stutzer
- +0.43
- Treynor
- +3.65
- Sterling
- +2
- Calmar
- +4.22
- Information Ratio
- +0.49
- Tracking Error
- +25.3%
- Stdev Down
- +10%
- Winning Months %
- +72.2%
- Losing Months %
- +27.8%
- Best 12 Months
- +72.1%
- Worst 12 Months
- +34.4%
- Efficiency Ratio
- +0.58
- Sharpe
- +1.42
- Stdev Sectors
- 0%
- Skewness
- +0.37
- Kurtosis
- +0.06
- Upside Potential
- +4.67
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
Diadema Partners LP's most significant position changes for 2026-06-30: New buy: Bristol-myers Squibb Co (BMY); Sold out: Vertex Pharmaceuticals Inc (VRTX); Sold out: Liquidia CORP (LQDA); New buy: Novartis Ag-sponsored Adr (NVS); Sold out: Apogee Therapeutics Inc (APGE).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ABVX | Abivax Sa-adr | +7.7% | +177.32% | Add |
| 2 | BMY | Bristol-myers Squibb Co | +6.8% | NEW | New buy |
| 3 | VKTX | Viking Therapeutics Inc | +3.4% | +69.97% | Add |
| 4 | NVS | Novartis Ag-sponsored Adr | +3% | NEW | New buy |
| 5 | KYMR | Kymera Therapeutics Inc | +2.2% | NEW | New buy |
| 6 | SMMT | Summit Therapeutics Inc | +2.1% | NEW | New buy |
| 7 | HIMS | Hims & Hers Health Inc | +1.7% | NEW | New buy |
| 8 | BIIB | Biogen Inc | +1.6% | NEW | New buy |
| 9 | QURE | uniQure N.V. | +1.5% | -7.89% | Trim |
| 10 | BNTX | Biontech Se-adr | +1.2% | NEW | New buy |
| 11 | CORT | Corcept Therapeutics Inc | +1.1% | +22.43% | Add |
| 12 | FDMT | 4d Molecular Therapeutics In | +1% | NEW | New buy |
| 13 | BIOA | Bioage Labs Inc | +0.9% | +477.39% | Add |
| 14 | BMRN | Biomarin Pharmaceutical Inc | +0.8% | +111.06% | Add |
| 15 | SLS | Sellas Life Sciences Group I | +0.7% | +66.67% | Add |
| 16 | RPRX | Royalty Pharma plc | +0.7% | NEW | New buy |
| 17 | REPL | Replimune Group Inc | +0.7% | +56.49% | Add |
| 18 | CLDX | Celldex Therapeutics Inc | +0.6% | NEW | New buy |
| 19 | LLY | Eli Lilly & Co | +0.6% | +66.67% | Add |
| 20 | VERA | Vera Therapeutics Inc | +0.6% | NEW | New buy |
| 21 | RLAY | Relay Therapeutics Inc | +0.6% | NEW | New buy |
| 22 | UNCY | Unicycive Therapeutics Inc | +0.5% | +933.41% | Add |
| 23 | NVO | Novo-nordisk A/s-spons Adr | +0.5% | +121.21% | Add |
| 24 | RCUS | Arcus Biosciences Inc | +0.5% | +46.05% | Add |
| 25 | AMGN | Amgen Inc | +0.5% | NEW | New buy |
| 26 | TSHA | Taysha Gene Therapies Inc | +0.5% | NEW | New buy |
| 27 | NRIX | Nurix Therapeutics Inc | +0.4% | NEW | New buy |
| 28 | ORKA | Oruka Therapeutics Inc | +0.3% | NEW | New buy |
| 29 | PCVX | Vaxcyte Inc | +0.3% | +88.14% | Add |
| 30 | COGT | Cogent Biosciences Inc | +0.3% | +52.95% | Add |
| 31 | EWTX | Edgewise Therapeutics Inc | +0.3% | +28.10% | Add |
| 32 | SEPN | Septerna Inc | +0.3% | +29454.46% | Add |
| 33 | HELP | Cybin Inc | +0.3% | NEW | New buy |
| 34 | CTNM | Contineum Therapeutics Inc-a | +0.3% | NEW | New buy |
| 35 | GLUE | Monte Rosa Therapeutics Inc | +0.2% | +32.67% | Add |
| 36 | VRDN | Viridian Therapeutics Inc | +0.2% | NEW | New buy |
| 37 | CRBP | Corbus Pharmaceuticals Holdi | +0.2% | +68.40% | Add |
| 38 | ALMS | Alumis Inc | +0.2% | +52.44% | Add |
| 39 | ADMA | Adma Biologics Inc | +0.2% | NEW | New buy |
| 40 | ARDX | Ardelyx Inc | +0.2% | NEW | New buy |
| 41 | CUE | Cue Biopharma Inc | +0.2% | NEW | New buy |
| 42 | PRTA | Prothena Corporation plc | +0.2% | NEW | New buy |
| 43 | ✓ | Proqr Therapeutics N.v. | +0.2% | +414.22% | Add |
| 44 | SYRE | Spyre Therapeutics Inc | +0.2% | NEW | New buy |
| 45 | EDIT | Editas Medicine Inc | +0.2% | NEW | New buy |
| 46 | PYXS | Pyxis Oncology Inc | +0.2% | NEW | New buy |
| 47 | BHVN | Biohaven Ltd. | +0.1% | — | Unchanged |
| 48 | RNAC | Cartesian Therapeutics Inc | +0.1% | NEW | New buy |
| 49 | AQST | Aquestive Therapeutics Inc | +0.1% | NEW | New buy |
| 50 | RIGL | Rigel Pharmaceuticals Inc | +0.1% | NEW | New buy |
1–50 of 154
Filing History
FAQ
What is Diadema Partners LP and what type of investor is it?
Diadema Partners LP is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $791.3M, spread across 149 disclosed positions.
What are Diadema Partners LP's largest equity positions?
Based on the latest 13F filing, Diadema Partners LP's top holdings by market value are:
1. Abivax Sa-adr (ABVX) — $101.8M (12.9%)
2. Viking Therapeutics Inc (VKTX) — $78.5M (9.9%)
3. Bristol-myers Squibb Co (BMY) — $53.6M (6.8%)
4. United Therapeutics CORP (UTHR) — $28.7M (3.6%)
5. Revolution Medicines Inc (RVMD) — $26.1M (3.3%)
What changes did Diadema Partners LP make in its most recent portfolio filing?
In the latest reported quarter, Diadema Partners LP made 142 notable position adjustments: 43 new positions were initiated, 32 existing holdings were added to, 29 positions were partially reduced, and 38 were completely exited. The largest of these moves: New buy: Bristol-myers Squibb Co (BMY); Sold out: Vertex Pharmaceuticals Inc (VRTX); Sold out: Liquidia CORP (LQDA); New buy: Novartis Ag-sponsored Adr (NVS); Sold out: Apogee Therapeutics Inc (APGE)
What sectors does Diadema Partners LP focus on?
Diadema Partners LP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Health Care: 100.0%
Investment Profile
Diadema Partners LP returned an annualized 33.5% over the trailing 18 months — outperforming the S&P 500 by 29.9 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.09 (less volatile than the market) and a 61% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 100.0% of the portfolio concentrated in Health Care.
Its turnover score has risen from 0 to 100 over the past 4 quarters — a shift toward more active trading.
It has added to its ABVX position over the past two quarters (+$91.6M, now $101.8M), while trimming JNJ over the same stretch (-$18.5M, still holding $5.6M).
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Developer Access
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REST API
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