UPRXX

UBS Prime Reserves FundETF$1.00 0.00%
UnclassifiedCUSIP 90262Y786· EOD Sep 8, 2026

Among active 13F managers last quarter, 1 added and none reduced or exited; the largest holder to move was Reik & Co., LLC (+0.9%).

Tracked 13F holders
1
13F value (tracked)
$584K
13F moves · latest Q
1 added
0 reduced

Price & smart-money activity

$1.00 0.00%5Y +0.0%
$0.92$0.96$1.00$1.04$1.08202120222023202420252026
13F activity markers unavailable right nowEnd-of-day closing prices52w $1.00 – $1.00

Who owns UPRXX?

1 tracked 13F filers · ranked by shares held

1 tracked 13F filer discloses a position in UPRXX as of the latest SEC 13F filings, a combined $584K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Reik & Co., LLC584K
$584K
+0.9%
Added · +5K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is UPRXX being bought or sold by institutions?

Last quarter, 1 fund added to an existing position in UPRXX, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Added
1
added to an existing position
Biggest moves · ranked by size of the change, positions above a floor

Funds that own UPRXX also own

CompanyCo-held byTheir position there
Church & Dwight Co IncCHD1 funds$113.4M
Williams-Sonoma IncWSM1 funds$47.9M
Cintas CorpCTAS1 funds$40.7M
Berkshire Hathaway Inc-CL BBRK/B1 funds$36.3M
US BancorpUSB1 funds$30.8M
McCormick & Co-Non VTG SHRSMKC1 funds$21.2M
Netflix IncNFLX1 funds$8.2M
Coca-Cola CoKO1 funds$6.2M
Microsoft CorpMSFT1 funds$5.3M
Chevron CorpCVX1 funds$5.1M
Apple IncAAPL1 funds$4.9M

Ranked by how many of UPRXX's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in UPRXX.

Share classes

Class13F holdersValue held
90262Y760Com1 funds$68.6M
UPRXXthis pageMUT1 funds$584K

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

0 most recent

No filings captured for this ticker in the live stream yet.

Keep exploring

Connected entities for UPRXX

Browse more

Build

Ask your agent what changed in UPRXX

This ETF page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/UPRXX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for UPRXX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + quarter-over-quarter ownership changes + end-of-day price history + the live filing stream, joined for UPRXX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.