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Mattson Financial Services, LLC — 13F Holdings & Portfolio

CIK 2034595 · latest 13F-HR filed 2026-08-04

Backtest portfolio

Mattson Financial Services, LLC manages $477.8M in 13F-reported U.S. long-equity assets across 235 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (3.74%), SPYM (3.63%), DMBS (3.62%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 22 new positions and exited 19; 137 existing positions rose in reported value and 35 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Loading holdings…
AUM
$477.8M

Long-equity book

Holdings
235

Distinct positions

Period
2026-06-30

Filed 2026-08-04

Q/Q Activity
+22 / −19 / ↑137 / ↓35

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
NVDA3.7% · +25%SPYM3.6% · +7%DMBS3.6% · +8%AAPL2.8% · +0%AMZN2.8% · -7%GOOG2.5% · -6%MSFT2.2% · -8%XTEN2.1% · +137%META1.9% · +3%XSVN1.7% · +50%AVUS1.5% · +15%AVGO1.4% · +7%GS1.4% · 0%IETC1.3% · +34%PANW1.3% · -4%MS1.3% · -4%JPM1.3% · +4%UNH1.1% · -10%CVX1.1% · +3%XTWY1.0% · newLRCX1.0% · +4%V1.0% · +7%BLOK1.0% · -1%BBBS1.0% · -22%DABS0.9% · -4%TGT0.9% · -12%JAAA0.9% · -9%IVV0.9% · +1%CRPT0.8% · +3%ETN0.8% · +5%MDT0.8% · +2%KO0.8% · -2%AIS0.8% · newURI0.8% · +7%WMT0.8% · -4%BAC0.7% · -0%JNJ0.7% · +9%APH0.7% · +12%LOUP0.7% · -14%QTUM0.7% · -21%CHAT0.7% · -29%AVDE0.7% · +2%CRWD0.7% · newSPDW0.7% · -4%XFIV0.7% · -60%MUB0.6% · +52%PCMM0.6% · -28%PG0.6% · +8%PRIV0.6% · +25%BRK.B0.6% · -19%DXCM0.6% · +15%SBUX0.6% · -5%PYPL0.6% · +14%MCD0.6% · -2%COP0.6% · +9%LLY0.6% · +38%RECS0.6% · +2%NOW0.6% · +35%LOW0.6% · -1%MLM0.5% · +19%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 26.9%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Jun 16, 2026.

Assets Under Management
$515.0M
Discretionary
$514.7M
Employees
22
Accounts
3,211
Address
3226 28TH STREET SE
KENTWOOD, MI 49512
Phone
(800) 536-8907
Website
This firm reports 2 disclosure items on its registration.
Name Title / Status Ownership Type
MATTSON, GARY, HERMAN ControlMANAGING MEMBER/INVESTMENT ADVISOR REPRESENTATIVE
since Jan 2010
50–75%Individual
GREEN, GERALD, DOUGLASMEMBER/INVESTMENT ADVISOR REPRESENTATIVE
since Jun 2019
Less than 5%Individual
STEWARD, LAUREL, AUDREYMEMBER/CHIEF COMPLIANCE OFFICER/INVESTMENT ADVISOR REPRESENTATIVE
since Jun 2019
10–25%Individual
Steward, Taylor, FranklinMEMBER/INVESTMENT ADVISOR REPRESENTATIVE
since Jun 2019
10–25%Individual
Ownership & leadership changes · 3 filings with changes since Dec 1, 2020

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Feb 7, 2024 filing
  • No longer listedDAVIS, COREY, ROBERT · MEMBER/INVESTMENT ADVISOR REPRESENTATIVE · Less than 5% · listed since Jun 2019
  • ChangedMATTSON, GARY, HERMAN · ownership 75% or more → 50–75%
  • ChangedSTEWARD, LAUREL, AUDREY · ownership Less than 5% → 10–25%
  • ChangedSteward, Taylor, Franklin · ownership Less than 5% → 10–25%
Feb 23, 2022 filing
  • ChangedDAVIS, COREY, ROBERT · title MEMBER → MEMBER/INVESTMENT ADVISOR REPRESENTATIVE
  • ChangedMATTSON, GARY, HERMAN · title MANAGING MEMBER/IAR → MANAGING MEMBER/INVESTMENT ADVISOR REPRESENTATIVE
  • ChangedSTEWARD, LAUREL, AUDREY · title MEMBER/IAR/CCO → MEMBER/CHIEF COMPLIANCE OFFICER/INVESTMENT ADVISOR REPRESENTATIVE
Sep 21, 2021 filing
  • ChangedMATTSON, GARY, HERMAN · title MANAGING MEMBER/IAR/CCO → MANAGING MEMBER/IAR
  • ChangedSTEWARD, LAUREL, AUDREY · title MEMBER → MEMBER/IAR/CCO
Dec 1, 2020 filing (earliest on record)
  • ListedDAVIS, COREY, ROBERT · MEMBER · Less than 5%
  • ListedGREEN, GERALD, DOUGLAS · MEMBER/INVESTMENT ADVISOR REPRESENTATIVE · Less than 5%
  • ListedMATTSON, GARY, HERMAN · MANAGING MEMBER/IAR/CCO · 75% or more · control person
  • ListedSTEWARD, LAUREL, AUDREY · MEMBER · Less than 5%
  • ListedSteward, Taylor, Franklin · MEMBER/INVESTMENT ADVISOR REPRESENTATIVE · Less than 5%

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Mattson Financial Services, LLC Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION NVDA 67066G104 $17.9M 3.74% 86,067 SH
2 SPDR SERIES TRUST SPYM 78464A854 $17.4M 3.63% 196,513 SH
3 DOUBLELINE ETF TRUST DMBS 25861R402 $17.3M 3.62% 355,426 SH
4 APPLE INC AAPL 037833100 $13.4M 2.80% 40,151 SH
5 AMAZON COM INC AMZN 023135106 $13.2M 2.76% 52,818 SH
6 ALPHABET INC GOOG 02079K107 $12.0M 2.50% 33,785 SH
7 MICROSOFT CORP MSFT 594918104 $10.6M 2.22% 26,391 SH
8 BONDBLOXX ETF TRUST XTEN 09789C812 $9.9M 2.07% 219,983 SH
9 META PLATFORMS INC META 30303M102 $9.0M 1.88% 13,491 SH
10 BONDBLOXX ETF TRUST XSVN 09789C820 $8.1M 1.69% 171,964 SH
11 AMERICAN CENTY ETF TR AVUS 025072885 $7.0M 1.47% 54,927 SH
12 BROADCOM INC AVGO 11135F101 $6.7M 1.41% 18,010 SH
13 GOLDMAN SACHS GROUP INC GS 38141G104 $6.7M 1.40% 6,094 SH
14 ISHARES U S ETF TR IETC 46431W648 $6.2M 1.29% 60,068 SH
15 PALO ALTO NETWORKS INC PANW 697435105 $6.1M 1.28% 17,282 SH
16 MORGAN STANLEY MS 617446448 $6.1M 1.27% 27,861 SH
17 JPMORGAN CHASE & CO JPM 46625H100 $6.1M 1.27% 17,658 SH
18 UNITEDHEALTH GROUP INC UNH 91324P102 $5.3M 1.12% 12,583 SH
19 CHEVRON CORPORATION CVX 166764100 $5.2M 1.08% 28,131 SH
20 BONDBLOXX ETF TRUST XTWY 09789C796 $5.0M 1.05% 137,868 SH
21 LAM RESEARCH CORP LRCX 512807306 $4.8M 1.01% 15,073 SH
22 VISA INC V 92826C839 $4.8M 1.00% 13,080 SH
23 AMPLIFY ETF TR BLOK 032108607 $4.7M 0.99% 79,643 SH
24 BONDBLOXX ETF TRUST BBBS 09789C754 $4.7M 0.98% 92,345 SH
25 DOUBLELINE ETF TRUST DABS 25861R808 $4.5M 0.95% 89,871 SH
26 TARGET CORP TGT 87612E106 $4.5M 0.94% 32,181 SH
27 JANUS DETROIT STR TR JAAA 47103U845 $4.4M 0.93% 87,660 SH
28 ISHARES TR IVV 464287200 $4.3M 0.90% 5,712 SH
29 FIRST TR EXCHNG TRADED FD VI CRPT 33740F540 $4.0M 0.83% 338,697 SH
30 EATON CORP PLC ETN G29183103 $3.9M 0.83% 9,948 SH
31 MEDTRONIC PLC MDT G5960L103 $3.9M 0.82% 47,080 SH
32 COCA COLA CO KO 191216100 $3.9M 0.82% 45,969 SH
33 TIDAL TRUST III AIS 45259A845 $3.9M 0.81% 57,796 SH
34 UNITED RENTALS INC URI 911363109 $3.9M 0.81% 3,592 SH
35 WALMART INC WMT 931142103 $3.8M 0.80% 33,078 SH
36 BANK OF AMER CORP BAC 060505104 $3.6M 0.75% 57,910 SH
37 JOHNSON & JOHNSON JNJ 478160104 $3.5M 0.74% 14,182 SH
38 AMPHENOL CORP APH 032095101 $3.5M 0.73% 22,841 SH
39 INNOVATOR ETFS TRUST LOUP 45782C862 $3.4M 0.72% 38,341 SH
40 ETF SER SOLUTIONS QTUM 26922A420 $3.4M 0.72% 24,022 SH
41 TIDAL TRUST II CHAT 88636J600 $3.4M 0.71% 40,631 SH
42 AMERICAN CENTY ETF TR AVDE 025072703 $3.4M 0.71% 37,609 SH
43 CROWDSTRIKE HLDGS INC CRWD 22788C105 $3.2M 0.68% 15,927 SH
44 SPDR INDEX SHS FDS SPDW 78463X889 $3.2M 0.67% 64,306 SH
45 BONDBLOXX ETF TRUST XFIV 09789C838 $3.1M 0.65% 64,201 SH
46 ISHARES TR MUB 464288414 $3.1M 0.64% 28,883 SH
47 BONDBLOXX ETF TRUST PCMM 09789C671 $3.1M 0.64% 62,014 SH
48 PROCTER & GAMBLE CO PG 742718109 $3.1M 0.64% 20,202 SH
49 SSGA ACTIVE TR PRIV 78470P622 $3.1M 0.64% 122,534 SH
50 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $3.0M 0.63% 6,101 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-04 $477.8M 235 0002034595-26-000003
2026-03-31 2026-05-11 $418.8M 232 0002034595-26-000002
2025-12-31 2026-02-12 $428.2M 181 0002034595-26-000001
2025-09-30 2025-10-17 $418.2M 186 0002034595-25-000007
Filer Information
Address
3226 28TH STREET SE
KENTWOOD, MI 49512
Phone
(800) 536-8907
Filing Manager
Mattson Financial Services, LLC
KENTWOOD, MI
Signatory
Laurel Steward
CCO