Mark Kingdon's portfolio
In the Q2 2026 13F, filed August 14, 2026, Kingdon Capital Management reported 57 US stock positions worth $742M. The largest was Syndax Pharmaceuticals (SNDX) at 7.4% of the portfolio. New positions: GRAIL (GRAL), Hims Hers Health (HIMS) and Fluence Energy (FLNC). Added to: NVIDIA (NVDA) and Warby Parker (WRBY). The Q3 2026 13F is due by November 14, 2026.
What changed in Q2 2026
Compared with the previous 13F. Values are as reported at quarter end. How to read a 13F.
New positions
- GRAILGRAL$23M
- Hims Hers HealthHIMS$19M
- Fluence EnergyFLNC$18M
- IlluminaILMN$17M
- Intuitive SurgicalISRG$15M
- Butterfly NetworkBFLY$14M
- CytokineticsCYTK$13M
- Quanta ServicesPWR$12M
- FedExFDX$11M
- TANTAN$10M
Added to
- NVIDIANVDA$48M
- Warby ParkerWRBY$34M
- Api GroupAPG$25M
- Teledyne TechnologiesTDY$17M
- Olema PharmaceuticalsOLMA$15M
- CognexCGNX$14M
- Alibaba Group HoldingBABA$10M
- TheRealRealREAL$10M
- VicorVICR$9M
- Aldeyra TheALDX$6M
Trimmed
- Keysight TechnologiesKEYS$25M
- MaplebearCART$18M
- Howmet AerospaceHWM$16M
- FlexFLEX$15M
- Garrett MotionGTX$14M
- Brookdale Senior LivingBKD$13M
- VSEVSEC$12M
- RalliantRAL$11M
- HeicoHEI$11M
- American Healthcare REITAHR$9M
Sold out
None this quarter.
Holdings
57 US-listed positions in the Q2 2026 13F, largest first (top 50 shown; all of them in Investingly).
| Stock | % of portfolio | Value | Shares | Last quarter |
|---|---|---|---|---|
| Syndax PharmaceuticalsSNDX | 7.37% | $55M | 2,500,000 | Held |
| NVIDIANVDA | 6.47% | $48M | 240,000 | Added |
| Warby ParkerWRBY | 4.61% | $34M | 1,126,644 | Added |
| Api GroupAPG | 3.43% | $25M | 600,000 | Added |
| Keysight TechnologiesKEYS | 3.30% | $25M | 70,000 | Trimmed |
| NexGen EnergyNXE | 3.17% | $23M | 2,500,000 | Held |
| GRAILGRAL | 3.13% | $23M | 340,000 | New |
| Taiwan Semiconductor ManufacturingTSM | 2.90% | $21M | 45,000 | Held |
| Everus ConstructionECG | 2.80% | $21M | 125,000 | Held |
| Hims Hers HealthHIMS | 2.54% | $19M | 542,500 | New |
| MaplebearCART | 2.43% | $18M | 380,000 | Trimmed |
| Fluence EnergyFLNC | 2.41% | $18M | 900,000 | New |
| IlluminaILMN | 2.32% | $17M | 97,800 | New |
| Teledyne TechnologiesTDY | 2.25% | $17M | 25,000 | Added |
| Howmet AerospaceHWM | 2.17% | $16M | 60,000 | Trimmed |
| Olema PharmaceuticalsOLMA | 2.02% | $15M | 1,200,000 | Added |
| Intuitive SurgicalISRG | 1.99% | $15M | 37,100 | New |
| FlexFLEX | 1.97% | $15M | 90,000 | Trimmed |
| CognexCGNX | 1.95% | $14M | 200,000 | Added |
| Butterfly NetworkBFLY | 1.93% | $14M | 1,700,000 | New |
| Garrett MotionGTX | 1.83% | $14M | 375,000 | Trimmed |
| CytokineticsCYTK | 1.80% | $13M | 157,100 | New |
| Brookdale Senior LivingBKD | 1.74% | $13M | 800,000 | Trimmed |
| VSEVSEC | 1.62% | $12M | 52,500 | Trimmed |
| Quanta ServicesPWR | 1.55% | $12M | 16,000 | New |
| Zevra TherapeuticsZVRA | 1.50% | $11M | 775,000 | Held |
| RalliantRAL | 1.49% | $11M | 150,000 | Trimmed |
| FedExFDX | 1.48% | $11M | 35,000 | New |
| HeicoHEI | 1.44% | $11M | 30,000 | Trimmed |
| TANTAN | 1.40% | $10M | 175,000 | New |
| Aercap Holdings Nv | 1.38% | $10M | 70,000 | Held |
| ITTITT | 1.33% | $10M | 50,000 | New |
| Alibaba Group HoldingBABA | 1.29% | $10M | 100,000 | Added |
| TheRealRealREAL | 1.29% | $10M | 813,000 | Added |
| VicorVICR | 1.28% | $9M | 25,000 | Added |
| GE AerospaceGE | 1.26% | $9M | 25,000 | New |
| American Healthcare REITAHR | 1.23% | $9M | 175,000 | Trimmed |
| EntegrisENTG | 1.21% | $9M | 50,000 | New |
| CraneCR | 1.20% | $9M | 40,000 | Trimmed |
| GenescoGCO | 1.11% | $8M | 244,000 | Held |
| Wolverine World Wide | 1.08% | $8M | 485,000 | Held |
| AARAIR | 1.01% | $8M | 52,500 | Trimmed |
| Darling IngredientsDAR | 0.99% | $7M | 135,000 | Trimmed |
| Delta Air LinesDAL | 0.97% | $7M | 77,000 | New |
| Credo Technology Group HoldingCRDO | 0.79% | $6M | 21,500 | Trimmed |
| Lionsgate Studios Holding Corp. (to be renamed Lionsgate Studios Corp.)LION | 0.77% | $6M | 375,000 | New |
| WelltowerWELL | 0.77% | $6M | 25,000 | Trimmed |
| Aldeyra TheALDX | 0.76% | $6M | 2,652,315 | Added |
| F5FFIV | 0.67% | $5M | 12,000 | New |
| Inventiva SaIVA | 0.65% | $5M | 1,270,000 | New |
By sector
Share of the reported value.
Reported value over time
Total 13F value at each quarter end.
Questions
What stocks does Mark Kingdon own?
In the Q2 2026 13F, Kingdon Capital Management reported 57 US stock positions worth $742M. The largest: Syndax Pharmaceuticals (SNDX) 7.4%, NVIDIA (NVDA) 6.5%, Warby Parker (WRBY) 4.6%, Api Group (APG) 3.4%, Keysight Technologies (KEYS) 3.3%.
What did Mark Kingdon buy last quarter?
In Q2 2026: new position in GRAIL (GRAL); new position in Hims Hers Health (HIMS); new position in Fluence Energy (FLNC); added to NVIDIA (NVDA); added to Warby Parker (WRBY); added to Api Group (APG).
What did Mark Kingdon sell last quarter?
In Q2 2026: cut Keysight Technologies (KEYS); cut Maplebear (CART); cut Howmet Aerospace (HWM).
When is Mark Kingdon's next 13F?
13F filings are due 45 days after each quarter ends. The Q3 2026 filing is due by November 14, 2026.
More investors
13F filings list US-listed long positions (and some options) held at quarter end. They leave out short positions, cash, bonds and non-US holdings, and arrive up to 45 days after the quarter ends, so the investor may have traded since. Information only, not investment advice.