KEYYU

Keystone Acquisition Corp Cross-source read
FinancialsCUSIP G52539114

Among active 13F managers last quarter, 19 opened and none reduced or exited; the largest holder to move was Magnetar Financial LLC (new position). No recent Form 4 insider filings for KEYYU.

Tracked 13F holders
21
13F value (tracked)
$109.4M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
19 adding · 0 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Who owns KEYYU?

21 tracked 13F filers · ranked by shares held

21 tracked 13F filers disclose a position in KEYYU as of the latest SEC 13F filings, a combined $109.4M 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
1Magnetar Financial LLC2.0M
$20.1M
New
+2.0M sh
Q2 2026
2AQR Arbitrage LLC1.7M
$17.3M
New
+1.7M sh
Q2 2026
3LMR Partners LLP1.3M
$13.1M
New
+1.3M sh
Q2 2026
4Alberta Investment Management Corp800K
$8.0M
New
+800K sh
Q2 2026
5HGC Investment Management Inc.800K
$8.0M
New
+800K sh
Q2 2026
6Fort Baker Capital Management LP600K
$6.0M
New
+600K sh
Q2 2026
7Radcliffe Capital Management, L.P.500K
$5.0M
New
+500K sh
Q2 2026
8Centiva Capital, LP425K
$4.3M
New
+425K sh
Q2 2026
9Picton Mahoney Asset Management400K
$4.0M
New
+400K sh
Q2 2026
10Decagon Asset Management LLP375K
$3.8M
New
+375K sh
Q2 2026
11Whitebox Advisors LLC350K
$3.5M
New
+350K sh
Q2 2026
12Moore Capital Management, LP300K
$3.0M
New
+300K sh
Q2 2026
13Lineage Point Capital LP296K
$3.0M
New
+296K sh
Q2 2026
14Rivernorth Capital Management, LLC200K
$2.0M
New
+200K sh
Q2 2026
15Calamos Advisors LLC200K
$2.0M
New
+200K sh
Q2 2026
16Schonfeld Strategic Advisors LLC200K
$2.0M
New
+200K sh
Q2 2026
17Ghisallo Capital Management LLC150K
$1.5M
New
+150K sh
Q2 2026
18Aristeia Capital, L.L.C.144K
$1.4M
New
+144K sh
Q2 2026
19DLD Asset Management, LP100K
$1.0M
New
+100K sh
Q2 2026
20Clear Street Group Inc.21K
$206K
New
+21K sh
Q2 2026
21Longfellow Investment Management Co LLC9K
$87K
New
+9K 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 KEYYU being bought or sold by institutions?

Last quarter, 19 funds opened a new position in KEYYU, 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).

Opened
19
funds took a first position
Biggest moves · ranked by size of the change, positions above a floor

Insider activity (Form 4)

No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.

Do institutions, insiders and Congress agree?

The cross-source read for KEYYU was unavailable for this render. The API and MCP tool answer it live.

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Recent filings

0 most recent

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

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Ask your agent what changed in KEYYU

This stock 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/KEYYU/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for KEYYU.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + the live filing stream, joined for KEYYU. Filings are public domain, sourced to SEC EDGAR.