Heronetta Management provides portfolio management for individuals and small businesses and portfolio management for pooled vehicles. The firm advises 1 private fund.
Heronetta Management reports 28 clients. They include 27 high-net-worth individuals and 1 pooled investment vehicle. Of its assets, 100.0% ($254M across 28 accounts) are managed with discretion.
| Client type | Clients | Assets |
|---|---|---|
| High-net-worth individuals | 96% | 64% |
| Pooled investment vehicles | 4% | 36% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| High-net-worth individuals | 27 | $163M | 64.4% | $6.05M |
| Pooled investment vehicles | 1 | $90.3M | 35.6% | $90.3M |
| Total | 28 | $254M | 100% | $9.06M |
- Clients
- 27
- Regulatory AUM
- $163M
- AUM share
- 64.4%
- Avg. per client
- $6.05M
- Clients
- 1
- Regulatory AUM
- $90.3M
- AUM share
- 35.6%
- Avg. per client
- $90.3M
Total
- Clients
- 28
- Regulatory AUM
- $254M
- AUM share
- 100%
- Avg. per client
- $9.06M
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 1
Heronetta Management is paid through a percentage of assets under management. The reviewed brochures do not disclose an asset-based fee rate. Read the SEC-filed brochure.
Henry Breck owns 75% or more of Heronetta Management. The leadership team of Heronetta Management includes Chief Compliance Officer Jeffrey Scott. It has 5 employees, 3 of them in advisory roles.
Leadership
- Jeffrey ScottChief Compliance Officer
- Henry BreckManaging Partner
- Owen BreckPartner
Staff
- 5 employees
- 3 in advisory functions
- Owns 75% or more of Heronetta Management, L.P.
Henry Breck
Control person · since December 2007
Heronetta Management’s regulatory assets grew from $216M (March 2021) to $254M (March 2026); clients were 28 in both filings and employees fell from 6 to 5.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| March 2026 | $254M | 28 | 5 | 1 |
| March 2025 | $324M | 30 | 5 | 1 |
| March 2024 | $266M | 30 | 5 | 1 |
| March 2023 | $271M | 31 | 5 | 1 |
| April 2022 | $246M | 28 | 5 | 1 |
| March 2021 | $216M | 29 | 6 | 1 |
Besides its headquarters, Heronetta Management has 0 offices, with 1 listed address in New York.
New York · 1 listed address
- 654 Madison Avenue, Suite 1505, New YorkHQ
Contact and registration details
- Legal name
- Heronetta Management, L.P.
- Headquarters
- 654 Madison Avenue, Suite 1505, New York, NY 10065
- Website
- heronmgmt.com
- Phone
- 212-601-5333
- SEC file
- 801-73652
- Structure
- Delaware limited partnership
- Fiscal year end
- December
Heronetta Management uses Morgan Stanley ($85.9M, 58%), UBS ($49.9M, 34%) and J.P. Morgan ($11.3M, 8%) as custodians for its separately managed accounts. Heronetta Management has custody of client assets.
- Morgan StanleyMorgan Stanley · New York, NY · $85.9M58%
- UBSUBS · New York, NY · $49.9M34%
- J.P. MorganJ.P. Morgan · New York, NY · $11.3M8%
At year end, Heronetta Management’s separately managed accounts were mostly in stocks (99%). Its reported 13F holdings for the quarter ended 30 June 2026 total $109M across 15 positions; the largest are Williams Cos Inc. (17.2%), Mplx LP (16.8%) and Enterprise Prods Partners L (16.7%).
What the accounts hold
- Stocks99%
- Cash1%
Reported 13F holdings
- $109M
- Reported 13F value
- 15
- Positions
- 96.5%
- In the 10 largest
- −0.6%
- Value vs. prior quarter
- Williams Cos Inc.17.2%
- Mplx LP · Com Unit Rep Ltd16.8%
- Enterprise Prods Partners L16.7%
- Energy Transfer L P · Com UT Ltd Ptn14.0%
- Oneok Inc. New11.2%
- Western Midstream Partners L · Com Unit LP Int8.3%
- Plains GP Hldgs L P · Ltd Partnr Int A4.0%
- Hess Midstream LP · CL A Shs3.2%
- Kinder Morgan Inc. Del2.6%
- Targa Res Corp.2.5%
Together, the ten largest are 96.5% of reported value.
How many clients does Heronetta Management have?
Heronetta Management has 28 clients and manages $254 million for them, as of March 2026. They include 27 high-net-worth individuals and 1 pooled investment vehicle.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 31 March 2026
What services does Heronetta Management offer?
Heronetta Management provides portfolio management for individuals and small businesses and 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 Heronetta Management use?
Heronetta Management’s separately managed account assets are held at Morgan Stanley (New York, NY), with $85.9M, UBS (New York, NY), with $49.9M and J.P. Morgan (New York, NY), with $11.3M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 31 March 2026
How many financial advisors does Heronetta Management have?
Heronetta Management has 0 investment adviser representatives registered with state securities authorities, out of 5 employees, and 3 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 Heronetta Management invest in?
At the end of its last fiscal year, Heronetta Management’s separately managed accounts held 99% exchange-traded equities and 1% cash and equivalents. It advises 1 private fund.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Heronetta Management?
Heronetta Management’s direct owner is Henry Breck (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 31 March 2026
How does Heronetta Management get paid?
Heronetta Management is paid through a percentage of assets under management. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Heronetta Management?
Heronetta Management’s main office is at 654 Madison Avenue, Suite 1505, New York, NY 10065. Its phone number is 212-601-5333. Its website is heronmgmt.com.