Q3 2026 13F · SEC CIK 1536230

Heffernan Advisory, Inc

Wealth managerFiled 2026-10-13 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $148.9M
Reported positions: 57
Holdings vs S&P 500, 3 yrs: —
Assets under management: $409.6M

Heffernan Advisory, Inc is a wealth manager that reported 57 positions worth $148.9M in its Q3 2026 13F, filed 2026-10-13. Its largest holdings were Dimensional ETF Trust (DFCF, 31.3%), Gallagher Arthur J & Co (AJG, 19.4%), Dimensional ETF Trust (DFAC, 10.1%).

Heffernan Advisory, Inc holdings largest 50 of 57 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Heffernan Advisory, Inc 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
DFCFDimensional ETF Trust	31.3%	40.6%	1,160,813	+1.0%	$46.6M
AJGGallagher Arthur J & Co	19.4%	New	126,416	—	$28.8M
DFACDimensional ETF Trust	10.1%	10.5%	338,172	+19.6%	$15.0M
DFSDDimensional Short-Duration Fixed Income	6.0%	6.5%	191,280	+18.2%	$8.9M
DFICDimensional ETF Trust	5.5%	5.7%	219,143	+20.3%	$8.2M
DFGXDimensional Global ex US Core Fixed Inco	4.0%	4.4%	117,800	+21.4%	$6.0M
DFEMDimensional ETF Trust	2.5%	2.7%	94,472	+18.7%	$3.8M
LVHDLegg Mason ETF Invt	2.4%	3.3%	87,418	-1.8%	$3.6M
DGCBDimensional ETF Trust	2.2%	2.2%	62,400	+29.9%	$3.2M
STXSeagate Technology Hldngs Pl	1.0%	0.7%	1,650	+83.3%	$1.5M
VTIVanguard Index Fds	0.9%	1.1%	3,659	-0.3%	$1.4M
UTESEtfis Ser Tr I	0.9%	1.3%	19,101	-0.2%	$1.3M
SPYState Str Spdr S&p 500 ETF T	0.8%	0.4%	1,590	+133.8%	$1.2M
DFNMDimensional ETF Trust	0.8%	1.0%	25,930	+0.0%	$1.2M
VGTVanguard World Fd	0.7%	0.4%	8,400	+110.0%	$1.1M
IBMOIshares Ibonds	0.6%	0.7%	32,664	+0.0%	$838K
IBMPIshares Ibonds	0.6%	0.7%	33,092	+0.0%	$835K
IBMQIshares Tr	0.6%	0.7%	33,148	+0.0%	$833K
AMLPAlps ETF Tr	0.5%	0.6%	14,859	-0.5%	$771K
DFGRDimensional ETF Trust	0.5%	0.6%	28,100	+23.9%	$760K
IWMIshares Tr	0.5%	0.2%	2,732	+203.6%	$759K
MAMastercard Incorporated	0.5%	0.5%	1,274	+16.5%	$703K
MRVLMarvell Technology Inc	0.4%	0.3%	2,369	+98.1%	$626K
MSFTMicrosoft Corp	0.4%	0.2%	1,086	+42.1%	$557K
VVisa Inc	0.4%	0.3%	1,458	+40.1%	$524K
IWFIshares Tr	0.3%	0.2%	4,000	+100.0%	$501K
AMDAdvanced Micro Devices Inc	0.3%	New	810	—	$496K
PANWPalo Alto Networks Inc	0.3%	0.2%	1,210	+101.7%	$481K
AAPLApple Inc	0.3%	0.3%	1,402	+0.7%	$467K
GOOGLAlphabet Inc	0.3%	New	1,305	—	$449K
METAMeta Platforms Inc	0.3%	New	553	—	$401K
CIENCiena Corp	0.2%	0.2%	1,020	+104.0%	$359K
AMZNAmazon Com Inc	0.2%	New	1,376	—	$343K
FLEXFlex Ltd Ord	0.2%	0.3%	3,100	+24.0%	$341K
XPOXpo Inc	0.2%	New	1,920	—	$338K
CRWDCrowdstrike Hldgs Inc	0.2%	New	1,260	—	$334K
DYDycom Inds Inc	0.2%	0.3%	1,220	+74.3%	$328K
IVWIshares Tr	0.2%	New	2,250	—	$320K
NVDANvidia Corporation	0.2%	New	1,381	—	$315K
VTVVanguard Index Fds	0.2%	New	1,364	—	$295K
MUMicron Technology Inc	0.2%	0.2%	275	+37.5%	$293K
DFATDimensional ETF Trust	0.2%	0.2%	4,041	+0.3%	$269K
JPMJpmorgan Chase & Co	0.2%	New	803	—	$266K
AMATApplied Matls Inc	0.2%	0.3%	510	+6.3%	$261K
XLKSelect Sector Spdr Tr	0.2%	New	1,300	—	$254K
PLTRPalantir Technologies Inc	0.2%	New	1,360	—	$254K
URIUnited Rentals Inc	0.2%	0.2%	250	+25.0%	$250K
ORIOld Republic International Corp	0.2%	0.2%	6,509	+0.0%	$243K
ZBHZimmer Biomet Holdings Inc	0.2%	New	2,691	—	$239K
SPYGState Street Spdr Portfolio S&p 500 Grow	0.2%	New	1,900	—	$234K

What Heffernan Advisory, Inc bought and sold in Q3 2026, against Q2 2026.

New positions

AJG Gallagher Arthur J & Co19.4% of 13F
AMD Advanced Micro Devices Inc0.3% of 13F
GOOGL Alphabet Inc0.3% of 13F
META Meta Platforms Inc0.3% of 13F
AMZN Amazon Com Inc0.2% of 13F
XPO Xpo Inc0.2% of 13F
CRWD Crowdstrike Hldgs Inc0.2% of 13F
IVW Ishares Tr0.2% of 13F

Added to

IWM Ishares Tr+203.6% shares
SPY State Str Spdr S&p 500 ETF T+133.8% shares
VGT Vanguard World Fd+110.0% shares
CIEN Ciena Corp+104.0% shares
PANW Palo Alto Networks Inc+101.7% shares
IWF Ishares Tr+100.0% shares
MRVL Marvell Technology Inc+98.1% shares
STX Seagate Technology Hldngs Pl+83.3% shares

Reduced

No position shrank by more than 5%.

Left the top 50

DCOR Dimensional US Core Equity 1 ETFwas 10.4%
CPT Camden Ppty Trwas 0.2%
MXL Maxlinear Incwas 0.2%
MGV Vanguard World Fdwas 0.2%
DFAU Dimensional ETF Trustwas 0.2%
EQR Vivmark Residentialwas 0.2%
GOOG Alphabet Incwas 0.2%
GNL Global Net Lease Incwas 0.1%

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: —
3 years: —
5 years: —

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$148.9M	57
Q2 2026	$119.5M	43
Q1 2026	$107.8M	24
Q4 2025	$104.5M	27

Questions about Heffernan Advisory, Inc's portfolio

What stocks does Heffernan Advisory, Inc own?

Heffernan Advisory, Inc's latest 13F, for Q3 2026 and filed Oct 13, 2026, lists 57 positions worth $148.9M. The largest are Dimensional ETF Trust (DFCF) at 31.3%, Gallagher Arthur J & Co (AJG) at 19.4%, Dimensional ETF Trust (DFAC) at 10.1%, Dimensional Short-Duration Fixed Income (DFSD) at 6.0% and Dimensional ETF Trust (DFIC) at 5.5%.

What did Heffernan Advisory, Inc buy last quarter?

In Q3 2026, Heffernan Advisory, Inc added a new position in Gallagher Arthur J & Co (AJG), a new position in Advanced Micro Devices Inc (AMD), a new position in Alphabet Inc (GOOGL), a new position in Meta Platforms Inc (META), a new position in Amazon Com Inc (AMZN), Ishares Tr (IWM) (+203.6% shares), State Str Spdr S&p 500 ETF T (SPY) (+133.8% shares) and Vanguard World Fd (VGT) (+110.0% shares), compared with its Q2 2026 filing.

What did Heffernan Advisory, Inc sell last quarter?

In Q3 2026, Heffernan Advisory, Inc cut from its top 50 Dimensional US Core Equity 1 ETF (DCOR), cut from its top 50 Camden Ppty Tr (CPT), cut from its top 50 Maxlinear Inc (MXL), cut from its top 50 Vanguard World Fd (MGV) and cut from its top 50 Dimensional ETF Trust (DFAU), compared with its Q2 2026 filing.

When is Heffernan Advisory, Inc's next 13F filing due?

13F filings are due 45 days after each quarter ends. Heffernan Advisory, Inc's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Heffernan Advisory, Inc manage?

Heffernan Advisory, Inc reported $409.6M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $148.9M.