Top Institutional Investors

Rubicon Advisors, GP — 13F Holdings & Portfolio

CIK 2114679 · latest 13F-HR filed 2026-07-29

Backtest portfolio

Rubicon Advisors, GP manages $137.3M in 13F-reported U.S. long-equity assets across 86 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are AAPL (10.26%), TSLA (6.66%), NVDA (5.77%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 19 new positions and exited 9; 39 existing positions rose in reported value and 19 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
$137.3M

Long-equity book

Holdings
86

Distinct positions

Period
2026-06-30

Filed 2026-07-29

Q/Q Activity
+19 / −9 / ↑39 / ↓19

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26
AAPL10.3% · -0%TSLA6.7% · -2%NVDA5.8% · +1%BUFR5.5% · +12%AVUV3.8% · -33%FLCG3.4% · newGOOG3.4% · +2%AMZN3.4% · +0%DBMF3.1% · +83%TIP2.8% · +75%ITOT2.7% · newIBDR2.3% · newATFV2.3% · newCGMS2.1% · -5%GOOGL2.0% · -1%CGDV1.9% · +4%NBSD1.7% · -60%BRK.B1.5% · -3%BROS1.4% · +8%BUFQ1.3% · +4%IEMG1.3% · newDGRW1.3% · newVALQ1.2% · -28%LOWV1.1% · -24%QUAL1.1% · +560%COWG1.1% · -75%DYNF1.1% · newPATN1.0% · newMETA1.0% · +2%TCAF0.9% · -54%IEFA0.9% · +407%MSFT0.8% · +18%TRFK0.7% · +17%RDVY0.7% · -40%COST0.7% · -0%COWZ0.6% · -12%HTO0.6% · 0%SPCX0.6% · newIWF0.6% · +390%RSP0.5% · +0%FPX0.5% · +7%XAR0.5% · +12%CVX0.5% · +13%IGPT0.5% · +4%INTC0.5% · -10%VOO0.5% · +66%BN0.5% · -5%ED0.5% · 0%IVW0.5% · -4%TSM0.4% · +27%LLY0.4% · -2%AVGO0.4% · -28%SHOP0.4% · -5%MU0.4% · newGLD0.4% · +3%BKGI0.4% · +10%VFLO0.4% · newNLR0.4% · -5%AMD0.3% · newDKS0.3% · 0%

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 = 48.1%

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

Firm Profile & Key People

As of the firm’s regulatory filing dated Sep 23, 2026.

Assets Under Management
$420.7M
Discretionary
$420.7M
Employees
20
Accounts
2,219
Address
1640 EAST CYPRESS
SUITE A
REDDING, CA 96002
Phone
(530) 223-5357
Website
Name Title / Status Ownership Type
BOERO, STEVEN, PAUL ControlCHIEF COMPLIANCE OFFICER AND OWNER AND PARTNER
since Mar 2015
50–75%Individual
RUSSELL, BRIAN, BRADLEY ControlCHIEF FINANCIAL AND TECHNOLOGY OFFICER AND OWNER AND PARTNER
since Mar 2015
50–75%Individual
Ownership & leadership changes · 3 filings with changes since Jan 19, 2017

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.

Nov 1, 2023 filing
  • No longer listedTENAGLIA, ANDREW, FRANCIS · CHIEF MARKETING AND INVESTMENT OFFICER AND OWNER AND PARTNER · 25–50% · control person · listed since Mar 2015
  • ChangedBOERO, STEVEN, PAUL · ownership 25–50% → 50–75%
  • ChangedRUSSELL, BRIAN, BRADLEY · ownership 25–50% → 50–75%
Mar 9, 2018 filing
  • ChangedBOERO, STEVEN, PAUL · title CHIEF COMPLIANCE OFFICER AND PARTNER → CHIEF COMPLIANCE OFFICER AND OWNER AND PARTNER
  • ChangedRUSSELL, BRIAN, BRADLEY · title CHIEF FINANCIAL AND TECHNOLOGY OFFICER AND PARTNER → CHIEF FINANCIAL AND TECHNOLOGY OFFICER AND OWNER AND PARTNER
  • ChangedTENAGLIA, ANDREW, FRANCIS · title CHIEF MARKETING AND INVESTMENT OFFICER AND PARTNER → CHIEF MARKETING AND INVESTMENT OFFICER AND OWNER AND PARTNER
Jan 23, 2017 filing
  • ChangedBOERO, STEVEN, PAUL · title CHIEF COMPLIANCE OFFICER → CHIEF COMPLIANCE OFFICER AND PARTNER
  • ChangedRUSSELL, BRIAN, BRADLEY · title CHIEF FINANCIAL AND TECHNOLOGY OFFICER → CHIEF FINANCIAL AND TECHNOLOGY OFFICER AND PARTNER
  • ChangedTENAGLIA, ANDREW, FRANCIS · title CHIEF MARKETING AND INVESTMENT OFFICER → CHIEF MARKETING AND INVESTMENT OFFICER AND PARTNER
Jan 19, 2017 filing (earliest on record)
  • ListedBOERO, STEVEN, PAUL · CHIEF COMPLIANCE OFFICER · 25–50% · control person
  • ListedRUSSELL, BRIAN, BRADLEY · CHIEF FINANCIAL AND TECHNOLOGY OFFICER · 25–50% · control person
  • ListedTENAGLIA, ANDREW, FRANCIS · CHIEF MARKETING AND INVESTMENT OFFICER · 25–50% · 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.

Rubicon Advisors, GP 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 APPLE INC AAPL 037833100 $14.1M 10.26% 48,674 SH
2 TESLA INC TSLA 88160R101 $9.1M 6.66% 21,737 SH
3 NVIDIA CORPORATION NVDA 67066G104 $7.9M 5.77% 39,568 SH
4 FIRST TR EXCHNG TRADED FD VI BUFR 33740F755 $7.6M 5.53% 207,730 SH
5 AMERICAN CENTY ETF TR AVUV 025072877 $5.2M 3.82% 42,042 SH
6 FEDERATED HERMES ETF TRUST FLCG 31423L800 $4.7M 3.42% 140,880 SH
7 ALPHABET INC GOOG 02079K107 $4.7M 3.39% 13,181 SH
8 AMAZON COM INC AMZN 023135106 $4.6M 3.37% 19,421 SH
9 LITMAN GREGORY FDS TR DBMF 53700T827 $4.2M 3.05% 137,009 SH
10 ISHARES TR TIP 464287176 $3.8M 2.79% 34,958 SH
11 ISHARES TR ITOT 464287150 $3.7M 2.69% 22,487 SH
12 ISHARES TR IBDR 46435GAA0 $3.2M 2.34% 132,570 SH
13 THE ALGER ETF TRUST ATFV 015564206 $3.1M 2.27% 75,221 SH
14 CAPITAL GRP FIXED INCM ETF T CGMS 14020Y300 $2.9M 2.11% 105,834 SH
15 ALPHABET INC GOOGL 02079K305 $2.7M 1.97% 7,567 SH
16 CAPITAL GROUP DIVIDEND VALUE CGDV 14020W106 $2.7M 1.95% 54,232 SH
17 NEUBERGER BERMAN ETF TRUST NBSD 64135A887 $2.4M 1.75% 47,512 SH
18 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $2.0M 1.48% 4,069 SH
19 DUTCH BROS INC BROS 26701L100 $2.0M 1.43% 27,371 SH
20 FIRST TR EXCHNG TRADED FD VI BUFQ 33740U752 $1.8M 1.29% 44,936 SH
21 ISHARES INC IEMG 46434G103 $1.7M 1.26% 20,870 SH
22 WISDOMTREE TR DGRW 97717X669 $1.7M 1.25% 17,958 SH
23 AMERICAN CENTY ETF TR VALQ 025072208 $1.7M 1.23% 24,220 SH
24 AB ACTIVE ETFS INC LOWV 00039J301 $1.6M 1.15% 19,775 SH
25 ISHARES TR QUAL 46432F339 $1.6M 1.13% 7,097 SH
26 PACER FDS TR COWG 69374H360 $1.6M 1.13% 38,687 SH
27 BLACKROCK ETF TRUST DYNF 09290C103 $1.5M 1.11% 22,406 SH
28 PACER FDS TR PATN 69374H311 $1.4M 0.99% 36,453 SH
29 META PLATFORMS INC META 30303M102 $1.3M 0.97% 2,372 SH
30 T ROWE PRICE EXCHANGE-TRADED TCAF 87283Q867 $1.3M 0.94% 31,372 SH
31 ISHARES TR IEFA 46432F842 $1.2M 0.91% 12,882 SH
32 MICROSOFT CORP MSFT 594918104 $1.1M 0.83% 3,038 SH
33 PACER FDS TR TRFK 69374H386 $1.0M 0.74% 9,557 SH
34 FIRST TR EXCHANGE TRADED FD RDVY 33738R506 $976.4K 0.71% 12,046 SH
35 COSTCO WHOLESALE CORPORATION COST 22160K105 $934.2K 0.68% 999 SH
36 PACER FDS TR COWZ 69374H881 $883.5K 0.64% 14,204 SH
37 H2O AMERICA HTO 784305104 $862.6K 0.63% 14,194 SH
38 SPACE EXPLORATION TECHN CORP SPCX 84615Q103 $799.6K 0.58% 4,680 SH
39 ISHARES TR IWF 464287614 $780.1K 0.57% 6,283 SH
40 INVESCO EXCHANGE TRADED FD T RSP 46137V357 $735.8K 0.54% 3,458 SH
41 FIRST TR EXCHANGE-TRADED FD FPX 336920103 $730.7K 0.53% 3,544 SH
42 SPDR SERIES TRUST XAR 78464A631 $724.0K 0.53% 2,551 SH
43 CHEVRON CORPORATION CVX 166764100 $703.8K 0.51% 4,246 SH
44 INVESCO EXCHANGE TRADED FD T IGPT 46137V639 $677.7K 0.49% 6,510 SH
45 INTEL CORP INTC 458140100 $665.6K 0.48% 4,767 SH
46 VANGUARD INDEX FDS VOO 922908363 $659.9K 0.48% 961 SH
47 BROOKFIELD CORP BN 11271J107 $640.4K 0.47% 15,037 SH
48 CONSOLIDATED EDISON INC ED 209115104 $637.9K 0.46% 5,766 SH
49 ISHARES TR IVW 464287309 $618.6K 0.45% 4,498 SH
50 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $613.0K 0.45% 1,283 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-07-29 $137.3M 86 0001172661-26-002896
2026-03-31 2026-05-15 $114.9M 76 0001172661-26-001996
2025-12-31 2026-03-09 $108.1M 83 0001172661-26-001339
Filer Information
Address
1640 E. CYPRESS AVE.
SUITE A
REDDING, CA 96002
Phone
(530) 223-5357
Filing Manager
Rubicon Advisors, GP
REDDING, CA
Signatory
Steven Boero
Chief Compliance Officer