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Mason & Associates Inc — 13F Holdings & Portfolio

CIK 1917686 · latest 13F-HR filed 2026-07-23

Backtest portfolio

Mason & Associates Inc manages $619.0M in 13F-reported U.S. long-equity assets across 161 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are IWB (10.99%), RECS (7.05%), DFUS (6.37%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 16 new positions and exited 13; 96 existing positions rose in reported value and 32 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.

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AUM
$619.0M

Long-equity book

Holdings
161

Distinct positions

Period
2026-06-30

Filed 2026-07-23

Q/Q Activity
+16 / −13 / ↑96 / ↓32

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26
IWB11.0% · +1%RECS7.1% · -2%DFUS6.4% · -2%SMH4.2% · -30%HFXI4.0% · -0%AVDE3.9% · +0%JAAA3.0% · +9%VCSH3.0% · +1%JQUA2.9% · newSJNK2.6% · +1%AMD2.3% · -14%AVEM2.2% · +1%UYLD2.2% · +456%GPIX2.0% · -2%AAPL2.0% · +2%USFR1.9% · +50%NVDA1.9% · -1%VOX1.7% · +0%URA1.7% · -2%BAR1.3% · +7%TSLA1.3% · +1%BRK.B1.1% · +1%VO1.1% · +300%MSFT1.1% · +4%JPST1.1% · newOUSM1.1% · +0%GOOGL1.1% · -9%GPIQ1.0% · +2%ECAT0.9% · +8%VICR0.9% · -17%XCEM0.8% · -2%AMZN0.7% · -1%XMHQ0.6% · +1%DFAS0.6% · -2%GOOG0.6% · -1%SDVY0.6% · +2%PLTR0.6% · -2%AVGO0.5% · +8%META0.5% · +2%CWS0.5% · -0%GSLC0.5% · +1%COWG0.5% · -16%CRWD0.5% · -24%ASML0.5% · -1%HYGH0.4% · 0%JPM0.4% · -1%GLD0.4% · -0%AVSD0.4% · -5%GLW0.3% · +28%XOM0.3% · -4%VTI0.3% · -26%DFSU0.3% · +8%SLF0.3% · 0%CVBF0.2% · 0%NLY0.2% · +10%VRT0.2% · +3%AVSE0.2% · +17%OSCR0.2% · -2%SPY0.2% · -2%TEI0.2% · +105%

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

3 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 = 48%

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

Firm Profile & Key People
Assets Under Management
$2.24B
Discretionary
$1.73B
Employees
15
Accounts
5
Address
110 E. 59TH STREET
30TH FL
NEW YORK, NY 10022-1304
Phone
(212) 771-1200
Website
Name Title / Status Ownership Type
CONSTANTINO, DANIELA ControlANALYST AND MANAGING MEMBERLess than 5%Individual
CUTINI, MICHAEL, GEORGE ControlGENERAL COUNSEL AND CHIEF COMPLIANCE OFFICERLess than 5%Individual
GARSCHINA, KENNETH, MARIO ControlMANAGING MEMBER AND PRINCIPAL50–75%Individual
GARSCHINA, KENNETH, MARIO ControlLIMITED PARTNER50–75%Individual
GARSCHINA, KENNETH, MARIO ControlMANAGING MEMBER50–75%Individual
GRIZZETTI, JOHN, CHRISTOPHER ControlCHIEF OPERATING OFFICER AND MANAGING MEMBERLess than 5%Individual
MARTINO, MICHAEL, EMIL ControlMANAGING MEMBER AND PRINCIPAL50–75%Individual
MARTINO, MICHAEL, EMIL ControlLIMITED PARTNER50–75%Individual
MARTINO, MICHAEL, EMIL ControlMANAGING MEMBER50–75%Individual
MASON CAPITAL HOLDINGS LP ControlMANAGING MEMBERLess than 5%Domestic Entity
MASON MANAGEMENT HOLDINGS LLC ControlGENERAL PARTNERGeneral partnerDomestic Entity
READ, SAMUEL, THORNTON ControlANALYST AND MANAGING MEMBERLess than 5%Individual
SATZINGER, DEREK, RYAN ControlCHIEF FINANCIAL OFFICERLess than 5%Individual

Quarter-over-quarter changes

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

Mason & Associates Inc 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 ISHARES TR IWB 464287622 $68.0M 10.99% 166,139 SH
2 COLUMBIA ETF TR I RECS 19761L706 $43.6M 7.05% 1,008,482 SH
3 DIMENSIONAL ETF TRUST DFUS 25434V401 $39.5M 6.37% 481,535 SH
4 VANECK ETF TRUST SMH 92189F676 $25.7M 4.16% 39,237 SH
5 NEW YORK LIFE INVESTMENTS ET HFXI 45409B560 $24.9M 4.02% 653,490 SH
6 AMERICAN CENTY ETF TR AVDE 025072703 $24.3M 3.93% 272,600 SH
7 JANUS DETROIT STR TR JAAA 47103U845 $18.8M 3.04% 372,620 SH
8 VANGUARD SCOTTSDALE FDS VCSH 92206C409 $18.3M 2.96% 231,559 SH
9 J P MORGAN EXCHANGE TRADED F JQUA 46641Q761 $17.9M 2.88% 247,077 SH
10 SPDR SERIES TRUST SJNK 78468R408 $15.9M 2.57% 634,715 SH
11 ADVANCED MICRO DEVICES INC AMD 007903107 $14.2M 2.29% 24,403 SH
12 AMERICAN CENTY ETF TR AVEM 025072604 $13.7M 2.21% 141,979 SH
13 ANGEL OAK FUNDS TRUST UYLD 03463K752 $13.7M 2.21% 268,513 SH
14 GOLDMAN SACHS ETF TR GPIX 38149W622 $12.5M 2.01% 224,343 SH
15 APPLE INC AAPL 037833100 $12.4M 2.00% 42,888 SH
16 WISDOMTREE TR USFR 97717Y527 $12.0M 1.94% 238,592 SH
17 NVIDIA CORPORATION NVDA 67066G104 $11.6M 1.88% 58,055 SH
18 VANGUARD WORLD FD VOX 92204A884 $10.8M 1.74% 58,465 SH
19 GLOBAL X FDS URA 37954Y871 $10.4M 1.68% 237,713 SH
20 GRANITESHARES GOLD TR BAR 38748G101 $8.2M 1.32% 206,312 SH
21 TESLA INC TSLA 88160R101 $7.9M 1.28% 18,813 SH
22 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $6.9M 1.12% 13,824 SH
23 VANGUARD INDEX FDS VO 922908629 $6.8M 1.10% 84,183 SH
24 MICROSOFT CORP MSFT 594918104 $6.7M 1.09% 18,070 SH
25 J P MORGAN EXCHANGE TRADED F JPST 46641Q837 $6.7M 1.08% 131,826 SH
26 ALPS ETF TR OUSM 00162Q395 $6.6M 1.06% 138,643 SH
27 ALPHABET INC GOOGL 02079K305 $6.6M 1.06% 18,391 SH
28 GOLDMAN SACHS ETF TR GPIQ 38149W630 $6.3M 1.01% 105,390 SH
29 BLACKROCK ESG CAP ALLC TERM ECAT 09262F100 $5.6M 0.91% 357,593 SH
30 VICOR CORP VICR 925815102 $5.6M 0.90% 14,699 SH
31 COLUMBIA ETF TR II XCEM 19762B202 $4.7M 0.76% 89,549 SH
32 AMAZON COM INC AMZN 023135106 $4.5M 0.72% 18,676 SH
33 INVESCO EXCHANGE TRADED FD T XMHQ 46137V472 $3.8M 0.62% 33,957 SH
34 DIMENSIONAL ETF TRUST DFAS 25434V500 $3.8M 0.61% 45,766 SH
35 ALPHABET INC GOOG 02079K107 $3.7M 0.59% 10,394 SH
36 FIRST TR EXCHANGE TRADED FD SDVY 33741X102 $3.6M 0.58% 83,523 SH
37 PALANTIR TECHNOLOGIES INC PLTR 69608A108 $3.6M 0.58% 30,635 SH
38 BROADCOM INC AVGO 11135F101 $3.4M 0.55% 9,003 SH
39 META PLATFORMS INC META 30303M102 $3.3M 0.53% 5,858 SH
40 ADVISORSHARES TR CWS 00768Y560 $3.3M 0.53% 48,177 SH
41 GOLDMAN SACHS ETF TR GSLC 381430503 $3.3M 0.53% 22,997 SH
42 PACER FDS TR COWG 69374H360 $3.0M 0.48% 74,032 SH
43 CROWDSTRIKE HLDGS INC CRWD 22788C105 $2.9M 0.47% 3,824 SH
44 ASML HLDG NV ASML N07059210 $2.9M 0.47% 1,447 SH
45 ISHARES U S ETF TR HYGH 46431W606 $2.7M 0.44% 31,246 SH
46 JPMORGAN CHASE & CO JPM 46625H100 $2.5M 0.41% 7,696 SH
47 SPDR GOLD TR GLD 78463V107 $2.4M 0.39% 6,567 SH
48 AMERICAN CENTY ETF TR AVSD 025072299 $2.2M 0.35% 27,218 SH
49 CORNING INC GLW 219350105 $2.0M 0.32% 7,705 SH
50 EXXON MOBIL CORP XOM 30231G102 $1.9M 0.30% 13,613 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-07-23 $619.0M 161 0001917686-26-000003
2026-03-31 2026-04-30 $516.3M 160 0001917686-26-000002
2025-12-31 2026-02-05 $531.3M 157 0001917686-26-000001
Filer Information
Address
7474 N FIGUEROA STREET
LOS ANGELES, CA 90041
Phone
(323) 254-3072
Filing Manager
Mason & Associates Inc
LOS ANGELES, CA
Signatory
Thomas Mason
CCO