O'Brien Greene & Co. Inc

CIK 0001768635 · Q1 2026

13F Equity AUM

$353.3M

+4.9% QoQ

Positions

133

-3 QoQ

AUM Rank

#5,354

Top 43%

Skill Alpha (FF)

-3.1%/yr^ns

No Clear Edge

Rank #6,387 · Top 78%

vs S&P -6.2%/yr (unadj.)

Quarters Tracked

~7 years

Portfolio Concentration

Top 5: 22.5%Top 10: 39.6%Top 20: 65.5%

PHYS/U5.8%

IBKR4.8%

FLBR4.1%

AAPL4.0%

BRK/B3.8%

WMT3.6%

VLO3.5%

EOG3.4%

FNV3.4%

WMB3.2%

Others (123)60.4%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Financial Services22.2%

Energy14.4%

Technology13.4%

Industrials11.1%

Basic Materials10.6%

Healthcare8.8%

Consumer Defensive6.7%

Financials6.0%

Other6.8%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 133Median: 0.21%Avg: 0.75%

0–0.5%

96(17.4%)

0.5–1%

11(7.5%)

1–3%

15(32.5%)

3–5%

10(36.8%)

5%+

1(5.8%)

Count of positions per weight bucket — (%) = combined portfolio weight

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Portfolio Overlap

Shared: 116Unique: 17vs 20 funds

1.6%Low

133

Fund positions

7,299

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Most Similar Funds

Top 9 benchmark funds with highest portfolio overlap (Jaccard similarity)

MORGAN STANLEY

2.2%

JPMORGAN CHASE & CO

2.4%

BANK OF AMERICA CORP /DE/

2.4%

BlackRock, Inc.

2.7%

FMR LLC

3.6%

STATE STREET CORP

2.9%

VANGUARD CAPITAL MANAGEMENT LLC

2.8%

GEODE CAPITAL MANAGEMENT, LLC

2.7%

VANGUARD PORTFOLIO MANAGEMENT LLC

3.2%

Jaccard similarity per fund: shared CUSIPs / (fund A + fund B − shared). Higher values indicate more similar portfolios.

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Position Changes This Quarter

New11Increased38Decreased33Exited14

New Positions

LYB1.9%

+85K

ABJA1.9%

+83K

BSX1.5%

+83K

CF0.2%

+6K

VIRT0.2%

+15K

GLW0.1%

+2K

SOLS0.1%

+4K

ALX0.1%

+1K

CUBE0.1%

+6K

NIKL0.1%

+15K

Increased

BOLSY0.4%

+98K(+484%)

EC0.3%

+54K(+540%)

PHYS/U5.8%

+16K(+3%)

SONY1.4%

+13K(+6%)

RGR0.3%

+10K(+71%)

SNEX0.7%

+10K(+50%)

NTR2.8%

+5K(+4%)

VLTO1.7%

+3K(+5%)

AMRZ0.2%

+3K(+30%)

NTDOY0.2%

+3K(+7%)

Decreased

Alphamin Resources C…0.0%

-470,000(-75%)

FLBR4.1%

-25,271(-4%)

FDX0.1%

-12,299(-92%)

IBKR4.8%

-6,562(-3%)

TLN0.4%

-6,530(-59%)

ADP0.6%

-5,393(-36%)

CCO0.3%

-5,200(-36%)

PSLV/U0.2%

-4,000(-12%)

CSCO2.9%

-3,100(-2%)

WMT3.6%

-1,918(-2%)

Exited

MEDP

-12,743

-31,309

TOI

-38,893

CROX

-8,562

GAW.L

-2,361

Hikari Tsushin Inc N…

-2,100

-19,000

-2,000

-4,172

-768

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

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Holdings

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