Skip to main content
Stocks
Browse Stocks
Search any US-listed stock
Stock Screener
Combine ownership, insider and short filters
Valuation Multiples
EV/Revenue, EV/EBIT and P/E vs industry
Most Shorted
Highest short interest
Squeeze Risk
Composite short-squeeze score
Insider Sentiment
Stocks insiders are accumulating most
Largest Short Volume
Daily short-volume leaders
Highest Off-Exchange Share
Dark-pool / OTC volume leaders
Largest Buybacks
Biggest share-repurchase programs
Going-Concern Flags
Companies disclosing going-concern doubt
Institutions
Filers & Rankings
Browse Filers
All 13F institutional filers
Top by AUM
Largest filers by assets
Smart Money Index
Top funds' highest-conviction basket
Superinvestors
Famous value investors' portfolios
AUM Movers
Biggest assets-under-management swings
Most-Held Stocks
Stocks owned by the most filers
Last Quarter's Movers
Notable position changes
Overlap Matrix
Compare filer portfolios side by side
Beneficial Ownership
Recent 13D / 13G >5% stakes
13F Activity
13F Statistics
Aggregate filing statistics
Latest Filings
Newest 13F submissions
13F Trends
Sector and flow trends
Double-Down Report
Increased-conviction buys
Conviction Heat Map
Crowded positions at a glance
Markets
Insider Trading
Corporate insider buys and sells
Investment Advisers
SEC-registered Form ADV firms
Economic Data
Federal Reserve and macro indicators
Economic Calendar
Upcoming macro data releases
Congress Net Worth
Richest members by disclosed net worth
Congress Leaderboard
Members ranked by portfolio performance
Docs
⌘K
Log In
Register
Institutions
Daniel B. O'Brien
Daniel B. O'Brien
CIK
1112317
No Portfolio Data
No 13F holdings on record for this institution yet.
✕
close
Please leave this field empty
Report a Problem
Category
Wrong Data
Missing Data
Broken Page
Other
Description
Email (optional, for follow-up)
Cancel
Submit Report
close
