Stembrook Asset Management, LLC — 13F Holdings & Portfolio

CIK 2109734 · latest 13F-HR filed 2026-08-12

Stembrook Asset Management, LLC manages $115.8M in 13F-reported U.S. long-equity assets across 51 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are AAPL (34.88%), SPY (16.68%), VEA (8.72%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions, exited 1, added to 30, and trimmed 6.

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.

Filer Information
Address
212 MAPLE AVENUE
SUITE 201
RED BANK, NJ 07701
Phone
(201) 484-0063
Filing Manager
Stembrook Asset Management, LLC
RED BANK, NJ
Signatory
Thomas Kosinski
Chief Compliance Officer
Loading holdings…
AUM

$115.8M

Long-equity book

Holdings

51

Distinct positions

Period

2026-06-30

Filed 2026-08-12

Q/Q Activity

+4 / −1 / ↑30 / ↓6

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • APPLE INC$4.9M +13.9%
  • STATE STR SPDR S&P 500 ETF T$2.3M +13.2%
  • VANGUARD TAX-MANAGED FDS$649.6K +6.9%
  • ADVANCED MICRO DEVICES INC$507.3K +185.6%
  • VANGUARD INDEX FDS$502.7K +16.8%
Show all 30 →

Top Trims

  • EXXON MOBIL CORP-$91.8K -17.5%
  • LOCKHEED MARTIN CORP-$63.2K -15.7%
  • CHEVRON CORPORATION-$54.8K -19.9%
  • WALMART INC-$46.9K -8.9%
  • PFIZER INC-$40.8K -14.2%
Show all 6 →

New Positions

  • BAILLIE GIFFORD ETF TR$1.8M
  • CUMMINS INC$242.5K
  • WW GRAINGER INC$217.7K
  • VALERO ENERGY CORP$205.7K
Show all 4 →

Exited Positions

  • GERON CORP$29.8K
Show all 1 →
All Holdings

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 APPLE INC AAPL 037833100 $40.4M 34.88% 139,603 SH
2 STATE STR SPDR S&P 500 ETF T SPY 78462F103 $19.3M 16.68% 25,873 SH
3 VANGUARD TAX-MANAGED FDS VEA 921943858 $10.1M 8.72% 141,696 SH
4 VANGUARD BD INDEX FDS BND 921937835 $8.6M 7.41% 116,839 SH
5 VANGUARD MUN BD FDS VTEB 922907746 $6.9M 5.98% 136,900 SH
6 VANGUARD INDEX FDS VXF 922908652 $3.5M 3.02% 14,222 SH
7 INVESCO QQQ TR QQQ 46090E103 $2.7M 2.30% 3,619 SH
8 ALPHABET INC GOOGL 02079K305 $2.1M 1.79% 5,810 SH
9 BAILLIE GIFFORD ETF TR BGGG 05686D200 $1.8M 1.52% 49,811 SH
10 VANGUARD INDEX FDS VBR 922908611 $1.5M 1.27% 6,047 SH
11 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $1.4M 1.23% 2,855 SH
12 VANGUARD INTL EQUITY INDEX F VWO 922042858 $1.4M 1.20% 23,373 SH
13 MICROSOFT CORP MSFT 594918104 $936.3K 0.81% 2,510 SH
14 ADVANCED MICRO DEVICES INC AMD 007903107 $780.7K 0.67% 1,344 SH
15 INTEL CORP INTC 458140100 $731.5K 0.63% 5,239 SH
16 CAPITAL ONE FINL CORP COF 14040H105 $702.2K 0.61% 3,500 SH
17 MARATHON PETE CORP MPC 56585A102 $653.5K 0.56% 2,556 SH
18 SCHWAB STRATEGIC TR SCHX 808524201 $641.6K 0.55% 21,802 SH
19 CISCO SYS INC CSCO 17275R102 $621.7K 0.54% 5,293 SH
20 UMB FINL CORP UMBF 902788108 $609.4K 0.53% 4,269 SH
21 AMAZON COM INC AMZN 023135106 $604.7K 0.52% 2,537 SH
22 JOHNSON & JOHNSON JNJ 478160104 $599.1K 0.52% 2,359 SH
23 JPMORGAN CHASE & CO JPM 46625H100 $491.0K 0.42% 1,500 SH
24 WALMART INC WMT 931142103 $482.1K 0.42% 4,257 SH
25 ELI LILLY & CO LLY 532457108 $481.0K 0.42% 401 SH
26 GENERAL DYNAMICS CORP GD 369550108 $436.8K 0.38% 1,233 SH
27 EXXON MOBIL CORP XOM 30231G102 $433.9K 0.37% 3,174 SH
28 UNION PAC CORP UNP 907818108 $422.4K 0.36% 1,553 SH
29 SCHWAB STRATEGIC TR SCHF 808524805 $419.0K 0.36% 15,127 SH
30 NVIDIA CORPORATION NVDA 67066G104 $359.6K 0.31% 1,797 SH
31 ABBVIE INC ABBV 00287Y109 $356.6K 0.31% 1,417 SH
32 ORACLE CORP ORCL 68389X105 $352.3K 0.30% 2,404 SH
33 AMERICAN EXPRESS CO AXP 025816109 $347.7K 0.30% 1,028 SH
34 LOCKHEED MARTIN CORP LMT 539830109 $339.3K 0.29% 666 SH
35 PARKER-HANNIFIN CORP PH 701094104 $322.8K 0.28% 330 SH
36 LOWES COS INC LOW 548661107 $318.4K 0.27% 1,444 SH
37 S&P GLOBAL INC SPGI 78409V104 $312.0K 0.27% 766 SH
38 STARBUCKS CORP SBUX 855244109 $306.6K 0.26% 3,000 SH
39 SCHWAB STRATEGIC TR SCHA 808524607 $277.3K 0.24% 7,674 SH
40 RTX CORPORATION RTX 75513E101 $268.5K 0.23% 1,415 SH
41 MERCK & CO INC MRK 58933Y105 $262.1K 0.23% 2,040 SH
42 PHILIP MORRIS INTL INC PM 718172109 $258.0K 0.22% 1,426 SH
43 COCA COLA CO KO 191216100 $248.8K 0.21% 3,061 SH
44 PROGRESSIVE CORP PGR 743315103 $246.9K 0.21% 1,130 SH
45 PFIZER INC PFE 717081103 $245.4K 0.21% 10,191 SH
46 CUMMINS INC CMI 231021106 $242.5K 0.21% 340 SH
47 PROCTER & GAMBLE CO PG 742718109 $227.0K 0.20% 1,548 SH
48 AUTOMATIC DATA PROCESSING IN ADP 053015103 $226.9K 0.20% 1,013 SH
49 CHEVRON CORPORATION CVX 166764100 $220.8K 0.19% 1,332 SH
50 WW GRAINGER INC GWW 384802104 $217.7K 0.19% 160 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-12 $115.8M 51 0002109734-26-000006
2026-03-31 2026-05-13 $102.1M 48 0002109734-26-000004
2025-12-31 2026-02-13 $105.9M 48 0002109734-26-000002