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Merrithew & Thorsten Inc — 13F Holdings & Portfolio

CIK 2107460 · latest 13F-HR filed 2026-11-06

Backtest portfolio

Merrithew & Thorsten Inc manages $110.6M in 13F-reported U.S. long-equity assets across 19 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are VOO (26.79%), QQQ (19.36%), PTY (14.14%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 0 new positions and exited 97; 7 existing positions rose in reported value and 4 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
$110.6M

Long-equity book

Holdings
19

Distinct positions

Period
2026-09-30

Filed 2026-11-06

Q/Q Activity
+0 / −97 / ↑7 / ↓4

vs 2026-06-30

Portfolio charts

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

Portfolio map

Q3 26
VOO26.8% · -1%QQQ19.4% · +3%PTY14.1% · -5%AAPL11.3% · +3%VCR6.4% · +5%VDC5.4% · +4%PLD5.3% · +6%O1.9% · +4%GOOGL1.8% · +13%ORCL1.8% · +7%GOOG1.5% · -3%CAT1.2% · 0%MSFT0.7% · -0%CHY0.5% · +118%AMZN0.5% · +36%PSX0.4% · +0%COST0.3% · 0%NVDA0.3% · +60%VBR0.3% · +9%

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

Q2 26 → Q3 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 = 94.3%

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

Firm Profile & Key People

As of the firm’s regulatory filing dated Feb 10, 2026.

Assets Under Management
$155.0M
Discretionary
$155.0M
Employees
2
Accounts
372
Address
9820 WILLOW CREEK ROAD
SUITE 200
SAN DIEGO, CA 92131
Phone
(858) 547-1845
Website
Name Title / Status Ownership Type
MERRITHEW, LESLIE, ROBERT ControlCFO
since Jan 2001
50–75%Individual
THORSTEN, BRANDON, ERIC ControlCEO/CHIEF COMPLIANCE OFFICER
since Jan 2001
50–75%Individual
Ownership & leadership changes · 1 filing with changes since Feb 8, 2012

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.

Mar 15, 2022 filing
  • ChangedMERRITHEW, LESLIE, ROBERT · title CFO/ CHIEF COMPLIANCE OFFICER → CFO
  • ChangedTHORSTEN, BRANDON, ERIC · title CEO → CEO/CHIEF COMPLIANCE OFFICER
Feb 8, 2012 filing (earliest on record)
  • ListedMERRITHEW, LESLIE, ROBERT · CFO/ CHIEF COMPLIANCE OFFICER · 50–75% · control person
  • ListedTHORSTEN, BRANDON, ERIC · CEO · 50–75% · control person

Quarter-over-quarter changes

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

Top Adds (vs prior quarter)

Show all 7 →

Top Trims

Show all 4 →

New Positions

  • No new positions this quarter.
Show all 0 →

Exited Positions

Show all 97 →

Merrithew & Thorsten Inc Holdings (2026-09-30)

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 VANGUARD INDEX FDS VOO 922908363 $29.6M 26.79% 42,280 SH
2 INVESCO QQQ TR QQQ 46090E103 $21.4M 19.36% 28,956 SH
3 PIMCO CORPORATE & INCOME OPP PTY 72201B101 $15.6M 14.14% 1,420,520 SH
4 APPLE INC AAPL 037833100 $12.5M 11.29% 37,489 SH
5 VANGUARD WORLD FD VCR 92204A108 $7.1M 6.41% 19,444 SH
6 VANGUARD WORLD FD VDC 92204A207 $6.0M 5.40% 27,357 SH
7 PROLOGIS INC. PLD 74340W103 $5.9M 5.35% 45,559 SH
8 REALTY INCOME CORP O 756109104 $2.2M 1.95% 39,647 SH
9 ALPHABET INC GOOGL 02079K305 $2.0M 1.81% 5,832 SH
10 ORACLE CORP ORCL 68389X105 $2.0M 1.81% 14,586 SH
11 ALPHABET INC GOOG 02079K107 $1.6M 1.46% 4,748 SH
12 CATERPILLAR INC CAT 149123101 $1.3M 1.20% 1,631 SH
13 MICROSOFT CORP MSFT 594918104 $815.1K 0.74% 1,589 SH
14 CALAMOS CONV & HIGH INCOME F CHY 12811P108 $567.4K 0.51% 48,453 SH
15 AMAZON COM INC AMZN 023135106 $554.4K 0.50% 2,225 SH
16 PHILLIPS 66 PSX 718546104 $483.3K 0.44% 1,892 SH
17 COSTCO WHOLESALE CORPORATION COST 22160K105 $361.6K 0.33% 397 SH
18 NVIDIA CORPORATION NVDA 67066G104 $293.7K 0.27% 1,286 SH
19 VANGUARD INDEX FDS VBR 922908611 $286.7K 0.26% 1,241 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-11-06 $110.6M 19 0002107460-26-000005
2026-06-30 2026-07-31 $117.4M 116 0002107460-26-000003
2026-03-31 2026-05-01 $106.0M 122 0002107460-26-000002
2025-12-31 2026-02-03 $94.5M 120 0002107460-26-000001
Filer Information
Address
9820 WILLOW CREEK ROAD
SUITE 200
SAN DIEGO, CA 92131
Phone
(858) 547-1845
Filing Manager
Merrithew & Thorsten Inc
SAN DIEGO, CA
Signatory
Cindi Hill
Filing Agent