LatticeworkTHE EVIDENCE DESK
Decision record· NEW · Q2 2026

Duquesne Family Office opened GOOGL at 2.8% of its 13F book. What did that mean?

The filing established that Duquesne Family Office initiated GOOGL at 2.8% of its reported long U.S. equity book. It did not reveal transaction dates, execution prices, or the manager's reason for the change.

Share𝕏in

Latticework verdict

Context, not a trade alert

Meaningful new position. Low timing precision.

A 2.8% reported portfolio weight makes this new position material. Pattern: new position. But the disclosed change could have occurred anywhere in the quarter and was published 45 days after quarter end, making it 45–135 days old at disclosure. Use it to investigate the thesis, not to copy an entry or exit.

Inspect the original SEC filing ↗See the disclosure delay ↓

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Reported shares
NEW
336,300
Portfolio weight
2.8%
from 0.0%
Quarter-end value
$120M
not purchase cost
Signal age
45–135d
when disclosed

What the clock tells us

Apr 1, 2026

Change window opens

The net change could begin here—or later.

Jun 30, 2026

Quarter-end snapshot

The filing measures shares and fair value on this date.

Aug 14, 2026

Public disclosure

The snapshot arrived 45 days after quarter end.

The filing does not identify transaction dates inside the Apr 1, 2026–Jun 30, 2026 change window.

What we know

  • Shares: 0 → 336,300, a new position of 336,300.
  • Weight: GOOGL moved from 0.0% to 2.8% of Duquesne Family Office's reported long U.S. equity book.
  • Pattern: The prior quarter showed no position in this security. Reported weight path: 2023Q1 3.9% → 2023Q3 3.9% → 2024Q4 0.4% → 2025Q3 0.6% → 2025Q4 2.9% → 2026Q2 2.8%.
  • Valuation snapshot: the filing implies $357.37 per share at quarter end. That is reported fair value, not Duquesne Family Office's entry price.

Decision test

Meaningful?Yes
Large share change and material book weight. Pattern: new position.
Timely?No
The information was 45–135 days old at publication.
Corroborated?Mixed
4 material buy/add and 12 trim/exit signals across the cohort.
Copyable?No
No trade dates, cost basis, rationale, or manager-specific constraints.

Source versions and follow-through

What was recorded, and when?

First registered 2026-09-07 · source version 1, recorded 2026-09-07. The source filing was public on 2026-08-14; registration here happened separately.

Prospective observation · tracking

This version's clock begins at the first shared market close strictly after 2026-09-07. The filing date alone cannot backdate a selection. Earlier post-filing returns remain in the retrospective tracker below.

1.5% stock · 0.7% SPY · +0.8 percentage points vs SPY · 2026-09-08–2026-10-02 (19 closes).

Inspect source versions and corrections (1)

  1. Version 1 · 2026-09-07

    First prospective registration; earlier filing returns remain retrospective.

    NEW · 0.00% before → 2.76% after.

    Original SEC source ↗

    Source snapshot SHA-256 7adec405eb94ae3a0d65a173f1cd073e7a631a62215bac844b8bea89a18ddb35

30 dated prospective observations retained. Source changes restart the revised claim's clock; previous versions and observations stay in the registry.

Download the source and observation registry

Registration versions are retained in this project's history, not certified by an independent timestamp authority. This is an editorial sample with overlapping stocks, not a prediction or a manager portfolio backtest.

Retrospective outcome tracker · tracking

What happened after disclosure?

34 sessions · through Oct 2, 2026

Measured from the first shared market close after the SEC filing—not from the manager's unknown entry or exit price.

GOOGL
-0.1%
SPY
-0.1%
Vs SPY
+0.1%

The disclosed direction is supported so far.

Early performance can reverse. This is observation, not a verdict on the manager or the security.

The cohort did not move as one

Tracked managers disclosed 4 material buy/add signals and 12 trim/exit signals in GOOGL. Quarter-end cohort ownership moved from 37 to 36. This was disagreement, not consensus.

Source trail and limits

Original SEC filing ↗Full Q2 2026 diff →GOOGL researchDuquesne Family Office portfolio →Outcome prices ↗
  • A 13F reports quarter-end holdings, not transaction dates or execution prices.
  • The net share change may represent multiple purchases and sales during the quarter.
  • Portfolio weight covers Duquesne Family Office's disclosed long U.S. 13F book, not its full assets or exposures.
  • Quarter-end value per share is reported fair value divided by shares; it is not the manager's cost basis.

SEC accession 0001536411-26-000006 · CUSIP 02079K305

Primary-source research, not investment advice.