New York attorney record · Judicial Dept 3
Jan Hyunkyung Ryu Koo
University Of Sydney alumna, admitted to the New York bar in 2013, registered office in Boston, MA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2013
- Admitted
- 13
- Years in bar
- 5134671
- NY reg #
The record in one line
Admitted in 2013, Jan Hyunkyung Ryu Koo has built 13 years of active New York practice - more tenure than 24% of the state's currently-active attorneys.
- 13 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 76%
- by tenure among active NY attorneys
- Law school
- University Of Sydney
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5134671 on the New York register belongs to Jan Hyunkyung Ryu Koo, currently in active standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Natixis Investment Managers, located in Boston, MA, ZIP 02199. 3 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY OF SYDNEY (109 registered alumni).
State context & due diligence
Jan Hyunkyung Ryu Koo is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
13 years into an active New York practice since a 2013 admission, Jan Hyunkyung Ryu Koo sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
13 years on the New York bar
Years since admission, all currently-active NY attorneys
13 Top 76% higher than 24% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How Jan compares to fellow University Of Sydney alumni
Among the 65 University Of Sydney graduates in the New York register, Jan Hyunkyung Ryu Koo is longer-tenured than 15% - a school-cohort view of experience, alongside the statewide one above.
13 years vs. University Of Sydney alumni
Years since admission - 65 NY-registered alumni of this school
13 Top 85% higher than 15% of 65 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
University Of Sydney's active-bar rate
Of University Of Sydney's 109 alumni in the New York register, 71.6% currently hold "Currently registered" status, above the statewide average.
University Of Sydney alumni, active-bar rate
The 2013 admission class today
Of the 10,251 attorneys admitted to the New York bar in 2013, 87.8% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5134671
- Year Admitted
- 2013 (13 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Jan 2027
Location & Contact
- Company
- Natixis Investment Managers
- City
- Boston, MA
- ZIP Code
- 02199
- Phone
- (781) 502-8633
Education
Status Distribution Across the New York Bar
Jan Hyunkyung Ryu Koo's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Natixis Investment Managers
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Compare attorneys →Before you rely on this record
Jan Hyunkyung Ryu Koo's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Jan Ryu Koo licensed?
Jan Ryu Koo is licensed to practice law in New York.
When was Jan Hyunkyung Ryu Koo admitted to the bar?
Jan Hyunkyung Ryu Koo has been on the New York bar register since 2013.
Where did Jan Hyunkyung Ryu Koo go to law school?
Jan Hyunkyung Ryu Koo attended UNIVERSITY OF SYDNEY.
What company does Jan Hyunkyung Ryu Koo work for?
Jan Hyunkyung Ryu Koo is associated with Natixis Investment Managers in Boston, MA.
Is Jan Hyunkyung Ryu Koo in good standing?
Yes, Jan Hyunkyung Ryu Koo holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.