683 Capital Management, LLC holds a diversified book of 208 stocks worth $1.1B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Astrana Health Inc and trimmed Protagonist Therapeutics Inc. Their largest long position is Capital One Financial Corp at 6% of the equity book. They also disclosed $801.2M in put options (a bearish bet) and $36.7M in call options (bullish), shown separately below and excluded from the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1404574/holdings"
Use Arkolith to show 683 Capital Management, LLC's latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
93% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Capital One Finl Corp COM | $68.4M | 375.0K | 6.3% | ▲+12% Added · +40K sh | |
| 2 | Carvana Co CL A | $48.7M | 155.0K | 4.5% | ▲+3.3% Added · +5K sh | |
| 3 | Bridgebio Pharma Inc NOTE 2.500% 3/1 | $39.2M | 21.75M | 3.6% | —Held | |
| 4 | Protagonist Therapeutics Inc COM | $37.4M | 355.0K | 3.5% | ▼−6.7% Reduced · −26K sh | |
| 5 | Wave Life Sciences Ltd SHS | $35.5M | 4.90M | 3.3% | ▲+22% Added · +885K sh | |
| 6 | Becton Dickinson & Co COM | $35.4M | 225.0K | 3.3% | ▲+150% Added · +135K sh | |
| 7 | Kaspi KZ JSC SPONSORED ADS | $35.2M | 475.0K | 3.3% | ▲+79% Added · +210K sh | |
| 8 | Anaptysbio Inc COM | $34.7M | 625.0K | 3.2% | ▼−3.6% Reduced · −23K sh | |
| 9 | Hilton Grand Vacations Inc COM | $30.3M | 775.0K | 2.8% | ▲+4.0% Added · +30K sh | |
| 10 | Gxo Logistics Incorporated COMMON STOCK | $25.9M | 500.0K | 2.4% | ▼−27% Reduced · −185K sh | |
| 11 | Molina Healthcare Inc COM | $21.3M | 160.0K | 2.0% | ▲+19% Added · +25K sh | |
| 12 | Amylyx Pharmaceuticals Inc COM | $21.3M | 1.53M | 2.0% | ▼−7.3% Reduced · −120K sh | |
| 13 | Meiragtx Hldgs PLC COM | $21.2M | 2.45M | 2.0% | ▼−4.3% Reduced · −109K sh | |
| 14 | Phathom Pharmaceuticals Inc COM | $20.6M | 1.85M | 1.9% | ▲+3.6% Added · +65K sh | |
| 15 | Amentum Holdings Inc COM | $20.2M | 775.0K | 1.9% | ▼−7.2% Reduced · −60K sh | |
| 16 | Iamgold Corp COM | $19.8M | 1.05M | 1.8% | ▲+17% Added · +150K sh | |
| 17 | TG Therapeutics Inc COM | $19.6M | 590.0K | 1.8% | ▲+64% Added · +230K sh | |
| 18 | Astrana Health Inc COM NEW | $17.2M | 700.0K | 1.6% | ▲New New position | |
| 19 | Sarepta Therapeutics Inc COM | $16.3M | 750.0K | 1.5% | ▼−7.4% Reduced · −60K sh | |
| 20 | Barrick MNG Corp COM SHS | $16.3M | 400.0K | 1.5% | —Held | |
| 21 | Western Alliance Bancorp COM | $15.9M | 225.0K | 1.5% | ▲+125% Added · +125K sh | |
| 22 | Knot Offshore Partners LP COM UNITS | $14.9M | 1.48M | 1.4% | ▲+1.4% Added · +20K sh | |
| 23 | Aris Mining Corporation COM | $14.9M | 800.0K | 1.4% | ▼−11% Reduced · −100K sh | |
| 24 | Eli Lilly & Co COM | $13.8M | 15.0K | 1.3% | ▲New New position | |
| 25 | Elevance Health Inc Formerly COM | $11.7M | 40.0K | 1.1% | ▼−4.8% Reduced · −2K sh | |
| 26 | Coupang Inc CL A | $11.5M | 610.0K | 1.1% | ▲New New position | |
| 27 | Seadrill Ltd COM | $11.4M | 250.0K | 1.1% | ▲+25% Added · +50K sh | |
| 28 | Amicus Therapeutic COM | $11.2M | 775.0K | 1.0% | ▼−3.1% Reduced · −25K sh | |
| 29 | Genuine Parts Co COM | $11.1M | 105.0K | 1.0% | ▲New New position | |
| 30 | Gossamer Bio Inc NOTE 5.000% 6/0 | $10.6M | 27.88M | 1.0% | ▲New New position | |
| 31 | Alphabet Inc CAP STK CL A | $10.4M | 36.0K | 1.0% | —Held | |
| 32 | Apellis Pharmaceuticals Inc COM | $10.1M | 250.0K | 0.9% | ▼−24% Reduced · −80K sh | |
| 33 | Lennar Corp CL B | $9.7M | 115.0K | 0.9% | —Held | |
| 34 | Booking Holdings Inc COM | $9.3M | 2.2K | 0.9% | ▲New New position | |
| 35 | Zevra Therapeutics Inc COM NEW | $9.1M | 975.0K | 0.8% | ▲+7.7% Added · +70K sh | |
| 36 | Bristow Group Inc COM | $8.7M | 186.0K | 0.8% | —Held | |
| 37 | Unitedhealth Group Inc COM | $8.7M | 32.0K | 0.8% | ▼−29% Reduced · −13K sh | |
| 38 | Cogent Comm Holdings Inc COM NEW | $8.5M | 450.3K | 0.8% | ▼−25% Reduced · −150K sh | |
| 39 | Uniqure NV SHS | $8.2M | 500.0K | 0.8% | ▲+30% Added · +115K sh | |
| 40 | Inspired Entmt Inc COM | $7.5M | 1.05M | 0.7% | ▼−1.2% Reduced · −13K sh | |
| 41 | Noble Corp PLC ORD SHS A | $7.4M | 150.0K | 0.7% | ▲+362% Added · +118K sh | |
| 42 | Alnylam Pharmaceuticals Inc COM | $6.9M | 21.0K | 0.6% | ▲+455% Added · +17K sh | |
| 43 | Lexeo Therapeutics Inc COM | $6.9M | 1.20M | 0.6% | ▲+7.1% Added · +80K sh | |
| 44 | Alector Inc COM | $6.9M | 3.20M | 0.6% | ▼−4.5% Reduced · −150K sh | |
| 45 | Icon PLC SHS | $6.9M | 62.0K | 0.6% | ▲New New position | |
| 46 | Builders Firstsource Inc COM | $6.6M | 80.0K | 0.6% | ▲+122% Added · +44K sh | |
| 47 | Globalstar Inc COM NEW | $6.5M | 98.0K | 0.6% | ▼−16% Reduced · −19K sh | |
| 48 | Perceptive Cap Solutions Cor CL A ORD SHS | $6.2M | 561.9K | 0.6% | ▼−12% Reduced · −79K sh | |
| 49 | Apartment Invt & Mgmt Co CL A | $5.9M | 1.45M | 0.5% | ▲New New position | |
| 50 | Energy Recovery Inc COM | $5.5M | 550.0K | 0.5% | ▲New New position |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | PALANTIR TECHNOLOGIES INC-APLTR | $340.6M | 2.3M |
| PUT · bearish | ELI LILLY & COLLY | $123.2M | 134K |
| PUT · bearish | NVIDIA CORPNVDA | $79.5M | 456K |
| PUT · bearish | MADRIGAL PHARMACEUTICALS INCMDGL | $47.1M | 90K |
| PUT · bearish | ALNYLAM PHARMACEUTICALS INCALNY | $42.4M | 128K |
| PUT · bearish | TESLA INCTSLA | $40.9M | 110K |
| PUT · bearish | PRAXIS PRECISION MEDICINES IPRAX | $36.3M | 113K |
| CALL · bullish | UNIQURE NVQURE | $20.5M | 1.3M |
| PUT · bearish | IONQ INCIONQ | $15.3M | 532K |
| PUT · bearish | LENNAR CORP-ALEN | $13.0M | 150K |
| PUT · bearish | INSMED INCINSM | $9.8M | 60K |
| CALL · bullish | COGENT COMMUNICATIONS HOLDINCCOI | $9.4M | 500K |
| PUT · bearish | ARK GENOMIC REVOLUTION ETFARKG | $9.2M | 350K |
| PUT · bearish | STRATEGY INCMSTR | $8.1M | 65K |
| PUT · bearish | MODERNA INCMRNA | $7.9M | 156K |
| PUT · bearish | NOVO-NORDISK A/S-SPONS ADRNVO | $5.5M | 150K |
| PUT · bearish | REVOLUTION MEDICINES INCRVMD | $4.9M | 50K |
| PUT · bearish | HIMS & HERS HEALTH INCHIMS | $4.6M | 220K |
| PUT · bearish | LULULEMON ATHLETICA INCLULU | $3.8M | 25K |
| PUT · bearish | COINBASE GLOBAL INC -CLASS ACOIN | $3.0M | 17K |
| PUT · bearish | IOVANCE BIOTHERAPEUTICS INCIOVA | $2.3M | 644K |
| PUT · bearish | TRANSMEDICS GROUP INCTMDX | $2.0M | 20K |
| CALL · bullish | VIKING THERAPEUTICS INCVKTX | $2.0M | 60K |
| CALL · bullish | PAYPAL HOLDINGS INCPYPL | $1.9M | 42K |
| CALL · bullish | PROTAGONIST THERAPEUTICS INCPTGX | $1.6M | 15K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above. Showing the largest 25 of 29 option legs.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 237 | $1.9B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 234 | $2.3B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 139 | $1.9B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 134 | $1.5B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 140 | $1.4B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 225 | $1.6B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 143 | $1.3B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 145 | $1.3B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 135 | $1.4B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 14, 2024 | 259 | $1.2B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 157 | $1.3B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 167 | $1.4B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 15, 2023 | 298 | $1.3B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 14, 2023 | 308 | $1.2B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 245 | $1.3B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 15, 2022 | 271 | $1.4B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 358 | $1.9B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 350 | $2.7B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 15, 2021 | 219 | $2.6B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 16, 2021 | 199 | $2.9B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 17, 2021 | 167 | $1.9B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 16, 2021 | 209 | $2.1B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 16, 2020 | 144 | $1.4B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 14, 2020 | 145 | $1.2B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.