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683 Capital Management, LLC: investment adviser
683 Capital Management, LLC is an investment adviser registered with the SEC (file 801-73162, CRD 156181). What it reports on Form ADV: assets and clients, fees, owners, disciplinary history and its client brochure. From the SEC's Investment Adviser Public Disclosure site; read Oct 21, 2026.
- Assets managed
- $2.4B
- Discretionary
- 100%
- Accounts
- 2
- Employees
- 10
- In advisory roles
- 5
- Disclosures
- 0
Company page · SEC adviser record · Full Form ADV (PDF)
The firm reports no custody of client cash or securities.
Form ADV Part 1A, Item 5, as filed on the SEC Investment Adviser Public Disclosure site; read Oct 21, 2026.
Clients and fees
Whom the firm advises and how it is paid, from Items 5.D, 5.E and 5.G.
| Client type | Clients | Assets | Share |
|---|---|---|---|
| Private funds and other pooled vehicles | 2 | $2.4B | 100.0% |
How it is paid
- A percentage of assets under your management
- Performance-based fees
Services
- Portfolio management for pooled investment vehicles (other than investment companies)
Who owns it
Schedule A lists direct owners of 5% or more (and officers who own a stake); Schedule B lists the owners of those owners.
Direct owners (Schedule A)
| Owner | Type | Role | Stake | Since | Control | Public company |
|---|---|---|---|---|---|---|
| Ari Jonathan Zweiman | Person | Managing member | D 50% to 75% | May 2006 | Yes | |
| Joseph S Patt | Person | Partner | C 25% to 50% | Nov 2011 | Yes |
Form ADV reports ownership in bands, not exact stakes: A means 5% to 10%, B 10% to 25%, C 25% to 50%, D 50% to 75%, E 75% or more. F marks a general partner, trustee or managing member, a role that controls the firm without a percentage. Owners of less than 5% are not listed.
Form ADV Schedules A and B, via the SEC Investment Adviser Public Disclosure site.
Disciplinary history
What the firm disclosed under Item 11 of Form ADV. A disclosure is the firm's own report: pending matters are allegations, not findings, and many settlements are made without admitting or denying them. Text is quoted from the filing, set in sentence case.
Item 11 questions answered Yes
These questions cover the firm and its advisory affiliates.
- (1) Has any domestic or foreign court: Are you or any advisory affiliate now the subject of any civil proceeding that could result in a "yes" answer to any part of Item 11.H.(1)? [ ] [ ]
No disclosure pages were read from this filing; see the SEC record for details.
Form ADV Item 11 and its Disclosure Reporting Pages, via the SEC record. All adviser disciplinary records.
The brochure
No brochure text was read for this firm.
Other brochures on file
- 683 Capital Management, LLC Part 2A March 2026, Mar 30, 2026
Form ADV Part 2A, via the SEC Investment Adviser Public Disclosure site.