DOSSIER · 13F-HR · Q1 2026

Mattson Financial Services, LLC

$419M in tracked AUM across 232 positions as of Q1 2026.

MF
CIK 0002034595 · last filed Mar 31, 2026
Total AUM
$419M
as of Q1 2026
Holdings
232
positions
Whale Score
46
46
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026

Mattson Financial Services, LLC filed its latest 13F-HR for Q1 2026. See the latest holdings and position changes below.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
DMBS
DOUBLELINE ETF TRUST
$16M328K3.9%
02
SPYM
SPDR SERIES TRUST
$14M184K3.4%
03
NVDA
NVIDIA CORPORATION
$12M69K2.9%
04
AMZN
AMAZON COM INC
$12M57K2.8%
05
MSFT
MICROSOFT CORP
$11M29K2.5%
06
GOOG
ALPHABET INC
$10M36K2.5%
07
AAPL
APPLE INC
$10M40K2.4%
08
XFIV
BONDBLOXX ETF TRUST
$8M159K1.9%
09
META
META PLATFORMS INC
$8M13K1.8%
10
BBBS
BONDBLOXX ETF TRUST
$6M118K1.4%

Filing history

2026Q1Mar 31
$419M 2.2%
232 positionsView →
2025Q4Dec 31
$428M 2.4%
181 positionsView →
2025Q3Sep 30
$418M 12.8%
186 positionsView →
2025Q2Jun 30
$371M 81.5%
164 positionsLocked
2025Q1Mar 31
$204M 35.1%
700 positionsLocked
2024Q4Dec 31
$315M 12.8%
1,014 positionsLocked
2024Q3Sep 30
$279M 0.7%
916 positionsLocked
2024Q2Jun 30
$281M
916 positionsLocked