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Disclosery

Laura & John Arnold Foundation

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13F filer, CIK 2111628, HOUSTON, TX

Laura & John Arnold Foundation reported $330,453,665 across 5 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001011438-26-000538

Period
2026-06-30
Reported value
$330M
Holdings
5
Top 10 weight
100%
New
1
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
OTFnew+1,200,000$12.4M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
XLUreduced-3,308,995-$150M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2026

Share positions as resolved from 13F-HR 0001011438-26-000538, largest first. % of portfolio is the value over $330,453,665, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
IGVISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not loaded; 2024Q4: not loaded; 2025Q1: not loaded; 2025Q2: not loaded; 2025Q3: not loaded; 2025Q4: 1,479,875 shares; 2026Q1: 1,479,875 shares; 2026Q2: 1,479,875 shares 1,479,875$134M40.57%0Timeline
GOOGALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not loaded; 2024Q4: not loaded; 2025Q1: not loaded; 2025Q2: not loaded; 2025Q3: not loaded; 2025Q4: 651,900 shares; 2026Q1: 325,000 shares; 2026Q2: 325,000 shares 325,000$115M34.75%0Timeline
XLUSELECT SECTOR SPDR TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not loaded; 2024Q4: not loaded; 2025Q1: not loaded; 2025Q2: not loaded; 2025Q3: not loaded; 2025Q4: 4,202,774 shares; 2026Q1: 4,202,774 shares; 2026Q2: 893,779 shares 893,779$40.5M12.26%-3,308,995Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not loaded; 2024Q4: not loaded; 2025Q1: not loaded; 2025Q2: not loaded; 2025Q3: not loaded; 2025Q4: 120,000 shares; 2026Q1: 120,000 shares; 2026Q2: 120,000 shares 120,000$28.6M8.66%0Timeline
OTFBLUE OWL TECHNOLOGY FIN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not loaded; 2024Q4: not loaded; 2025Q1: not loaded; 2025Q2: not loaded; 2025Q3: not loaded; 2025Q4: not reported; 2026Q1: not reported; 2026Q2: 1,200,000 shares 1,200,000$12.4M3.76%newTimeline

How Q2 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001011438-26-000538 base2026-08-14acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
13F-HR 0001011438-26-000538 Quarter ended 2026-06-302026-08-14acceptance time not in the bulk data set
13F-HR 0001011438-26-000339 Quarter ended 2026-03-312026-05-15acceptance time not in the bulk data set
13F-HR 0001011438-26-000132 Quarter ended 2025-12-312026-02-17acceptance time not in the bulk data set