Nantahala Capital Management provides portfolio management for pooled vehicles. The firm advises 3 private funds.
Nantahala Capital Management reports 11 clients. They include 10 pooled investment vehicles and 1 charitable organization. Of its assets, 100.0% ($3.11B across 11 accounts) are managed with discretion. Of its clients, 27% are outside the U.S.
| Client type | Clients | Assets |
|---|---|---|
| Pooled investment vehicles | 91% | 100% |
| Charitable organizations | 9% | <1% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Pooled investment vehicles | 10 | $3.11B | 100.0% | $311M |
| Charitable organizations | Fewer than 5 | $82.3K | 0.0% | $82.3K |
| Total | 11 | $3.11B | 100% | — |
- Clients
- 10
- Regulatory AUM
- $3.11B
- AUM share
- 100.0%
- Avg. per client
- $311M
- Clients
- Fewer than 5
- Regulatory AUM
- $82.3K
- AUM share
- 0.0%
- Avg. per client
- $82.3K
Total
- Clients
- 11
- Regulatory AUM
- $3.11B
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 27%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 3
Nantahala Capital Management is paid through a percentage of assets under management and performance-based fees; its fees and minimums are set out in its brochures on the SEC website.
Wilmot Harkey owns 25% to 50% of Nantahala Capital Management. The leadership team of Nantahala Capital Management includes Chief Financial Officer Qianqian Zhong and Chief Compliance Officer Demetrios (Taki) Vasilakis. It has 14 employees, 6 of them in advisory roles.
Leadership
- Qianqian ZhongChief Financial Officer
- Demetrios (Taki) VasilakisChief Compliance Officer
- Jonathan BubaMember
- Wilmot HarkeyManaging Member
- Daniel MackManaging Member
Staff
- 14 employees
- 6 in advisory functions
- 1 soliciting firm
- Owns 25% to 50% of Nantahala Capital Management, LLC
Wilmot Harkey
Control person · since May 2004
- Owns 25% to 50% of Nantahala Capital Management, LLC
Daniel Mack
Control person · since July 2007
- Owns 10% to 25% of Nantahala Capital Management, LLC
Jonathan Buba
Control person · since November 2016
Nantahala Capital Management’s regulatory assets fell from $4.18B (March 2021) to $3.11B (September 2026); clients were 11 in both filings and employees fell from 19 to 14.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| September 2026 | $3.11B | 11 | 14 | 1 |
| March 2025 | $2.35B | 12 | 15 | 1 |
| May 2024 | $2.28B | 11 | 14 | 1 |
| June 2023 | $2.47B | 13 | 16 | 1 |
| July 2022 | $3.54B | 13 | 17 | 1 |
| March 2021 | $4.18B | 11 | 19 | 1 |
Besides its headquarters, Nantahala Capital Management has 0 offices, with 1 listed address in Connecticut.
Connecticut · 1 listed address
- 130 Main St., 2nd Floor, New CanaanHQ
Contact and registration details
- Legal name
- Nantahala Capital Management, LLC
- Headquarters
- 130 Main St., 2nd Floor, New Canaan, CT 06840
- Website
- nantahalapartners.com
- Phone
- 203-909-6430
- SEC file
- 801-72481
- Structure
- Massachusetts LLC
- Fiscal year end
- December
Nantahala Capital Management uses Northern Trust Securities ($82.3K) as custodian for its separately managed accounts. Nantahala Capital Management has custody of $417M in client assets for 3 clients.
- Northern Trust SecuritiesNorthern Trust Securities, Inc. · Chicago, IL · $82.3K100%
At year end, Nantahala Capital Management’s separately managed accounts were mostly in stocks (100%). Its reported 13F holdings for the quarter ended 30 June 2026 total $6.02B across 155 positions; the largest are iShares TR (put option) (20.0%), Peloton Interactive Inc. (call option) (3.2%) and Herbalife Ltd (call option) (2.9%).
What the accounts hold
- Stocks100%
Reported 13F holdings
- $6.02B
- Reported 13F value
- 155
- Positions
- 41.4%
- In the 10 largest
- +121.6%
- Value vs. prior quarter
- iShares TR · Russell 2000 ETFPut20.0%
- Peloton Interactive Inc. · CL ACall3.2%
- Herbalife Ltd · Com ShsCall2.9%
- Viatris Inc.Call2.6%
- Bancorp Inc. Del2.6%
- Edwards Lifesciences Corp.Put2.4%
- SPDR Series Trust · ST Str SP BiotPut2.1%
- Bioventus Inc. · Com CL A1.9%
- Hilton Grand Vacations Inc.Call1.9%
- Hilton Grand Vacations Inc.1.8%
Together, the ten largest are 41.4% of reported value.
How many clients does Nantahala Capital Management have?
Nantahala Capital Management has 11 clients and manages $3.11 billion for them, as of September 2026. They include 10 pooled investment vehicles and 1 charitable organization.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 14 September 2026
What services does Nantahala Capital Management offer?
Nantahala Capital Management provides portfolio management for pooled vehicles.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
Which custodians does Nantahala Capital Management use?
Nantahala Capital Management’s separately managed account assets are held at Northern Trust Securities, Inc. (Chicago, IL), with $82.3K. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 14 September 2026
How many financial advisors does Nantahala Capital Management have?
Nantahala Capital Management has 0 investment adviser representatives registered with state securities authorities, out of 14 employees, and 6 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Nantahala Capital Management invest in?
At the end of its last fiscal year, Nantahala Capital Management’s separately managed accounts held 100% non-exchange-traded equities. It advises 3 private funds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Nantahala Capital Management?
Nantahala Capital Management’s direct owners are Wilmot Harkey, Daniel Mack and Jonathan Buba, each holding 50% or less.
Source: Form ADV Part 1A, Schedules A and B, filed 14 September 2026
How does Nantahala Capital Management get paid?
Nantahala Capital Management is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
Is Nantahala Capital Management registered with the SEC?
Yes, Nantahala Capital Management has been registered with the SEC as an investment adviser since 24 June 2011. Its CRD number is 158081 and its SEC file number is 801-72481.
Source: Form ADV Part 1A, Item 1, filed 14 September 2026; IAPD firm record
How do I contact Nantahala Capital Management?
Nantahala Capital Management’s main office is at 130 Main St., 2nd Floor, New Canaan, CT 06840. Its phone number is 203-909-6430. Its website is nantahalapartners.com.