LatticeworkTHE EVIDENCE DESK
← Discover companies

Investigate / reported ownership

COF

Capital One Financial Corp

14 tracked reported owners · snapshot updated 2026-10-04. Delayed disclosures, not live holdings or an investment recommendation.

Explore company research →Revisit Saved →

Who reports owning COF?

Select a manager to inspect their portfolio. Reports may cover different quarters; portfolio weights describe disclosed long 13F holdings, not total economic exposure.

Sort↑
Showing 5 of 14

Go beyond ownership.

Revenue is derived primarily from lending to consumer and commercial customers net of deposit and borrowing costs, plus non-interest income mainly from discount and interchange income net of rewards, and customer fees.

Question to investigate: Can Capital One integrate Discover and its payment networks in a way that delivers anticipated benefits without weakening credit or operational performance?

Company research reviewed 2026-10-02; a dated source-linked starting point, not the investors’ stated reasons.

Understand the business and investment case →
Filing dates and original SEC sources

A material reported change · Q2 2026

Joel Greenblatt increased reported COF shares by 47.5%.

Holdings as of Jun 30, 2026 · filed Sep 2, 2026. Position at period end: 0.2% of the reported portfolio. The filing does not reveal the trade date, price, or reason.

Read the SEC filing ↗See the change in context →

Reported position changes

Net disclosed share changes—not individual trades or execution dates. NEW has no prior-position percentage comparison; EXIT weight refers to the previous report.

Explore earlier changes and contrasting evidence

Selected historical records. Retrospective outcomes do not establish predictive skill.

Compare the reported increases and reductions →

  1. Q2 2026

    filed Sep 2, 2026

    64d lag

    ADD+47.5%

    Joel Greenblatt · 0.2% of reported portfolio

    Original SEC filing ↗

    -11.5% vs SPY

    21 sessions after disclosure

    direction not supported so far

  2. Q2 2026

    filed Aug 14, 2026

    45d lag

    EXITEXIT

    Clifford Sosin · 6.0% of reported portfolio

    Original SEC filing ↗

    -11.9% vs SPY

    34 sessions after disclosure

    direction supported so far

  3. Q2 2026

    filed Aug 14, 2026

    45d lag

    ADD+489.3%

    Daniel Loeb · 3.6% of reported portfolio

    Original SEC filing ↗

    -11.9% vs SPY

    34 sessions after disclosure

    direction not supported so far

  4. Q2 2026

    filed Aug 14, 2026

    45d lag

    EXITEXIT

    Stephen Mandel · 3.3% of reported portfolio

    Original SEC filing ↗

    -11.9% vs SPY

    34 sessions after disclosure

    direction supported so far

  5. Q2 2026

    filed Aug 14, 2026

    45d lag

    TRIM-76.0%

    Viking Global Investors · 0.8% of reported portfolio

    Original SEC filing ↗

    -11.9% vs SPY

    34 sessions after disclosure

    direction supported so far

  6. Q2 2026

    filed Aug 14, 2026

    45d lag

    TRIM-58.0%

    Warren Buffett · 0.5% of reported portfolio

    Original SEC filing ↗

    -11.9% vs SPY

    34 sessions after disclosure

    direction supported so far

Open the full position history →

Keep your next step small.

Save the company and inspect its evidence. Recording a private view is optional and requires a separate, explicit save.

Record my own view →
Optional email follow

Latticework Follow

Follow COF

Email me only when a reviewed weekly edition contains a material new decision about COF: a new position, exit, or a large share-count change that also clears the size threshold. There may be quiet weeks.

Confirm by email. Manage or stop follows in one click. See our privacy notice.

Long US 13F disclosures omit shorts and can be amended. CUSIP 14040H105. No current price, valuation or manager motive is inferred.