Jack Gentile
Financial advisor at Blair William & Co/il
Last updated 2026-10-10
Claim your profileJack Gentile is a financial advisor at Blair William & Co/il, CRD 7128024. Licenses and exams on the registration: Series 66. IAPD registration began 2023-07-20.
Registration
- CRD number
- 7128024
- Registration status
- Active
- IAPD registration
- 2023-07-20
- Industry Experience
- 3 years
- Work Experience
- 11 years
- States registered
- IL
Licenses and exams
- Series 66
Work history
- 2021-06 to Present · William Blair · Chicago, IL
- 2020-06 to 2020-08 · William Blair · Chicago, IL
- 2019-06 to 2019-08 · William Blair · Chicago, IL
- 2018-06 to 2018-08 · Mbs Textbooks · Columbia, MO
- 2015-06 to 2017-08 · Arlington Heights Park District · Arlington Heights, IL
- 2020-08 to 2021-05 · Student · Columbia, MO
- 2019-08 to 2020-06 · Student · Columbia, MO
- 2018-08 to 2019-06 · Student · Columbia, MO
- 2017-08 to 2018-06 · Student · Columbia, MO
Current employment
- William Blair · Chicago, IL
Blair William & Co/il
- Regulatory AUM
- $64,284,844,374
- Registered advisors
- 329
- Offices
- 141
- Clients per advisor
- 116.0 (High)
- Average AUM per client
- $1.7M (Low)
- High-net-worth client ratio
- 23.7% (Moderate)
Blair William & Co/il: advisors, services and reported ETF investments
About
Jack Gentile is a financial advisor at William Blair, operating as Blair William & Co/il. Reported securities licenses include Series 66. The latest record indicates 3 years of industry experience and 11 years of reported work history.
Blair William & Co/il's firm-level Form ADV reports 329 advisors across 141 offices; approximately 116.0 clients per advisor, average assets per client of $1,684,128, and regulatory AUM of $64.3B; client categories including Individuals (non-HNW), High net worth individuals, Pooled investment vehicles, Pension and profit-sharing plans, Charitable organizations, and Other investment advisers; services including Financial Planning Services, Portfolio Management: Individuals and Small Businesses, Portfolio Management: Pooled Investment Vehicles, Portfolio Management: Businesses or Institutional Clients, and Selection of Other Advisers.
PortfolioFuture's firm-level 13F analysis covers $7.2B across 637 reported ETF positions for the 2026-06-30 reporting period. These are firm-level disclosures, not investments attributed to Jack Gentile personally.
Reported ETF positions
Blair William & Co/il reports 637 ETF positions worth $7.2B on Form 13F; the largest are listed.
| Fund | Reported value |
|---|---|
| SPY — SPDR S&P 500 ETF TRUST | $633.3M |
| RSP — Invesco S&P 500 Equal Weight ETF | $421.9M |
| VEU — Vanguard FTSE All World Ex US ETF | $375.1M |
| IVV — iShares Core S&P 500 ETF | $363M |
| VEA — Vanguard FTSE Developed Markets ETF | $306.1M |
Source: SEC Form 13F. These are institution-level reported positions; they do not establish that any individual advisor or their clients hold a fund.
Noteworthy reported investments
Blair William & Co/il's strongest reported position on each research ranking. Institution-level evidence, not this advisor's or any client's holding.
| Ranking | Fund | Reported value | Percentile | Key figures |
|---|---|---|---|---|
| Similar Fund Ranking | CGDV — Capital Group Dividend Value ETF | $39.6M | Top 99.9% | Peer conviction 86.4% · Active return +5.44% |
| Addressable Market | CGDV — Capital Group Dividend Value ETF | $39.6M | Top 99.7% | Addressable AUM $8.7T · Peer conviction 86.4% |
| Residual Alpha | PRF — Invesco RAFI US 1000 ETF | $9.4M | Top 99.5% | Residual alpha +1.89% · Residual Sharpe 0.11 |
| Diversification Benefits | DXJ — WisdomTree Japan Hedged Equity Fund | $4.7M | Top 98.5% | Replicability (R²) 51.4% · Residual Sharpe 0.36 |
Historical comparisons from the published research release formed 2026-10-02; not forecasts or recommendations. Source: SEC Form 13F. These are institution-level reported positions; they do not establish that any individual advisor or their clients hold a fund.
What this firm offers
Filed by Blair William & Co/il on Form ADV.
Client services
- Financial Planning Services
- Individuals and Small Businesses
- Pooled Investment Vehicles
- Businesses or Institutional Clients
- Selection of Other Advisers
- Other Advisory Service
Fee options
- Percentage of Assets Under Management
- Fixed Fees (Other Than Subscription)
Business and affiliations
- Broker-Dealer (Registered or Unregistered)
- Insurance Broker or Agent
- Broker-Dealer or Municipal Securities Dea
- Other Investment Adviser (Incl. Financial
- Commodity Pool Operator or CTA
- Sponsor or GP of Pooled Investment Vehicl
- Adviser to Any Private Fund
Contact
The firm's filed contact details.
- Phone: 312-236-1600
- Website: williamblair.com
Official record
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