What does Heronetta Management, L.P. hold?

Heronetta Management, L.P.'s largest disclosed positions on the most recent Form 13F-HR filing on SEC EDGAR include EPD, MPLX, WMB. Full top-holdings list, quarter-over-quarter position changes, and sector allocation breakdown are available at https://13fpro.ai/research/fund/1588225.

What is Heronetta Management, L.P.'s AUM?

Heronetta Management, L.P. reported approximately $109.6M in 13F-reportable AUM as of 2026-03-31. This figure reflects long US-listed positions disclosed on Form 13F-HR and excludes non-13F-reportable holdings (cash, short positions, certain derivatives, and non-US securities). Separately, the firm reported $253.6M in total regulatory AUM (RAUM) on its most recent Form ADV filing.

Where does 13F Pro source Heronetta Management, L.P.'s holdings?

All Heronetta Management, L.P. holdings data comes directly from SEC EDGAR Form 13F-HR filings under CIK 1588225. Data refreshes automatically each quarter as new 13F filings are submitted (typically within 45 days of quarter-end). 13F Pro applies no third-party rewrites or estimates.

How often is Heronetta Management, L.P.'s 13F data updated on 13F Pro?

Heronetta Management, L.P.'s holdings update on 13F Pro within hours of each new Form 13F-HR filing on SEC EDGAR. Quarterly position changes, accumulation/distribution flags, and sector allocation are recalculated on each refresh.

Heronetta Management, L.P.

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1588225

Institutional-grade research for retail investors

13F Reported Value

ⓘ

$109.6M

Holdings

Latest Filing

2026-03-31

Filing Quarter

Q1 2026

Portfolio Overview

Heronetta Management, L.P. disclosed 16 positions worth $109.6M in its Form 13F-HR for Q1 2026, led by $EPD (ENTERPRISE PRODUCTS PARTNERS L.P.) at 17.1% of the equity portfolio, followed by $MPLX and $WMB. During the quarter the fund opened 0 new positions and exited 9 and a full exit from $CP. The portfolio is most concentrated in Energy (100.0% of disclosed assets). All figures are sourced directly from Heronetta Management, L.P.’s Form 13F-HR filing with the SEC under CIK 1588225.

AI Fund Analysis

Concentrating

Sector Allocation

Energy

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q1 2026

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Top Holdings

AI Quality Scored

ENTERPRISE PRODUCTS PARTNERS L.P.
$EPD
66.4#525
Quality
$18.7M495,048 sh
MPLX LP
$MPLX
76.5#102
Quality
$18.5M324,039 sh
WILLIAMS COMPANIES, INC.
$WMB
72.8#216
Quality
$18.3M251,402 sh
Energy Transfer LP
$ET
64.5
Quality
$15.4M799,229 sh
ONEOK INC /NEW/
$OKE
72.0
Quality
$12.7M140,802 sh
Western Midstream Partners, LP
$WES
78.1
Quality
$8.5M206,361 sh
PLAINS GP HOLDINGS LP
$PAGP
52.9
Quality
$4.4M181,025 sh
Hess Midstream LP
$HESM
78.4
Quality
$3.6M92,505 sh
KINDER MORGAN, INC.
$KMI
74.6
Quality
$3.0M88,725 sh
Targa Resources Corp.
$TRGP
70.0
Quality
$2.6M10,342 sh

Company	Quality	Value	Shares
ENTERPRISE PRODUCTS PARTNERS L.P.$EPD	66.4#525	$18.7M	495,048
MPLX LP$MPLX	76.5#102	$18.5M	324,039
WILLIAMS COMPANIES, INC.$WMB	72.8#216	$18.3M	251,402
Energy Transfer LP$ET	64.5	$15.4M	799,229
ONEOK INC /NEW/$OKE	72.0	$12.7M	140,802
Western Midstream Partners, LP$WES	78.1	$8.5M	206,361
PLAINS GP HOLDINGS LP$PAGP	52.9	$4.4M	181,025
Hess Midstream LP$HESM	78.4	$3.6M	92,505
KINDER MORGAN, INC.$KMI	74.6	$3.0M	88,725
Targa Resources Corp.$TRGP	70.0	$2.6M	10,342

Unlock AI quality scores for every holding

32-signal composite ranking on each of Heronetta Management, L.P.'s 16 positions.

Showing top 10 of 16 holdings.

Sector Allocation

Energy

$109.6M

Full Holdings — Heronetta Management, L.P. (Q1 2026)

All 16 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#	Ticker	Company	Value	Weight	QoQ	Quality
1	$EPD	ENTERPRISE PRODUCTS PARTNERS L.P.	$18.7M	17.1%	-0%	66.4
2	$MPLX	MPLX LP	$18.5M	16.9%	+0%	76.5
3	$WMB	WILLIAMS COMPANIES, INC.	$18.3M	16.7%	+0%	72.8
4	$ET	Energy Transfer LP	$15.4M	14.1%	-0%	64.5
5	$OKE	ONEOK INC /NEW/	$12.7M	11.6%	-0%	72
6	$WES	Western Midstream Partners, LP	$8.5M	7.8%	+0%	78.1
7	$PAGP	PLAINS GP HOLDINGS LP	$4.4M	4.0%	-1%	52.9
8	$HESM	Hess Midstream LP	$3.6M	3.3%	-1%	78.4
9	$KMI	KINDER MORGAN, INC.	$3.0M	2.7%	+0%	74.6
10	$TRGP	Targa Resources Corp.	$2.6M	2.4%	+1%	70
11	$ENB	ENBRIDGE INC	$839,549	0.8%	-92%	—
12	$PBA	PEMBINA PIPELINE CORP	$792,162	0.7%	-91%	—
13	$TRP	TC ENERGY CORP	$739,682	0.7%	-91%	—
14	$LNG	Cheniere Energy, Inc.	$708,549	0.7%	+0%	48.4
15	$AM	Antero Midstream Corp	$385,548	0.3%	+0%	71.6
16	$CQP	Cheniere Energy Partners, L.P.	$375,500	0.3%	+0%	74.1

Exited Positions (9)

$CP CANADIAN PACIFIC KANSAS CITY LTD/CN

$CNQ CANADIAN NATURAL RESOURCES Ltd

$SU SUNCOR ENERGY INC

$CNI CANADIAN NATIONAL RAILWAY CO

$FTS Fortis Inc.

$EMA EMERA INC

$TAC TRANSALTA CORP

$SOBO South Bow Corp

$CVE CENOVUS ENERGY INC.

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AI-Powered Hedge Fund Analysis: Heronetta Management, L.P.

13F Pro is an AI hedge fund tracker and stock research platform. For Heronetta Management, L.P. (SEC CIK: 1588225), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in Heronetta Management, L.P.'s portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.