Among active 13F managers last quarter, 2 opened and 6 added, while 5 reduced; the largest holder to move was AQR Arbitrage LLC (+0.4%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
55 tracked 13F filers disclose a position in OYSE as of the latest SEC 13F filings, a combined $226.9M 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | 1.3M | $13.4M | —Held | Q2 2026 | |
| 2 | Westchester Capital Management, LLC | 1.3M | $13.4M | —Held | Q2 2026 | |
| 3 | D. E. Shaw & Co., Inc. | 1.3M | $12.8M | —Held | Q1 2026 | |
| 4 | Linden Advisors LP | 1.1M | $11.8M | —Held | Q1 2026 | |
| 5 | AQR Arbitrage LLC | 1.1M | $11.3M | ▲+0.4% Added · +5K sh | Q2 2026 | |
| 6 | LMR Partners LLP | 1.1M | $11.3M | —Held | Q2 2026 | |
| 7 | Picton Mahoney Asset Management | 1.0M | $10.4M | ▲+1.5% Added · +15K sh | Q2 2026 | |
| 8 | Tenor Capital Management Co., L.P. | 900K | $9.3M | —Held | Q2 2026 | |
| 9 | Meteora Capital, LLC | 882K | $9.1M | ▼−26% Reduced · −307K sh | Q2 2026 | |
| 10 | Karpus Management, Inc. | 804K | $8.3M | ▲+22% Added · +146K sh | Q2 2026 | |
| 11 | Two Sigma Investments, LP | 798K | $8.1M | —Held | Q1 2026 | |
| 12 | Hudson Bay Capital Management LP | 697K | $7.2M | —Held | Q2 2026 | |
| 13 | Millennium Management LLC | 669K | $6.8M | ▲+6.2% Added · +39K sh | Q1 2026 | |
| 14 | Radcliffe Capital Management, L.P. | 624K | $6.4M | ▲~0% Added · +1 sh | Q2 2026 | |
| 15 | Moore Capital Management, LP | 500K | $5.1M | —Held | Q2 2026 | |
| 16 | Berkley W R Corp | 476K | $4.8M | —Held | Q1 2026 | |
| 17 | Rivernorth Capital Management, LLC | 475K | $4.9M | —Held | Q2 2026 | |
| 18 | Aristeia Capital, L.L.C. | 454K | $4.7M | —Held | Q2 2026 | |
| 19 | Mangrove Partners Im, LLC | 450K | $4.6M | —Held | Q2 2026 | |
| 20 | Alberta Investment Management Corp | 400K | $4.1M | —Held | Q2 2026 | |
| 21 | Davidson Kempner Capital Management LP | 400K | $4.1M | —Held | Q2 2026 | |
| 22 | Polar Asset Management Partners Inc. | 400K | $4.1M | ▼~0% Reduced · −100 sh | Q2 2026 | |
| 23 | Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 350K | $3.6M | ▼−13% Reduced · −50K sh | Q1 2026 | |
| 24 | Goldman Sachs Group Inc | 346K | $3.5M | —Held | Q1 2026 | |
| 25 | Healthcare Of Ontario Pension Plan Trust Fund | 340K | $3.5M | —Held | Q1 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.
Last quarter, 2 funds opened a new position in OYSE and 6 added to an existing one, while 5 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Eqv Ventures Acquisition C-AEVAC | 37 funds | $248.2M |
| Soulpower Acquisition Co-ASOUL | 34 funds | $193.4M |
| Cal Redwood Acquisit-CL ACRAQ | 34 funds | $174.8M |
| Oxley Bridge Acquisitio-CL AOBA | 34 funds | $151.6M |
| Solarius Capital Acquis-CL ASOCA | 34 funds | $112.5M |
| Republic Digital Acquis-CL ARDAG | 33 funds | $181.1M |
| Crane Harbor Acquisitio-CL ACRAN | 33 funds | $176.4M |
| Blue Water Acquisition C-ABLUW | 33 funds | $171.3M |
| Wen Acquisition Corp-AWENN | 33 funds | $163.5M |
| Pioneer Acquisition I-CL APACH | 33 funds | $150.1M |
| Lightwave Acquisition Corp-ALWAC | 33 funds | $148.9M |
| Cantor Equity Partners-CL ACEPV | 33 funds | $126.4M |
Ranked by how many of OYSE's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in OYSE.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 26, 2025 | LightWave Founders LLC | 10% Owner | Buy (P) | 606K | $6.1M |
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 7 | 10 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
US House STOCK Act trades | 0 | 0 | $0 |
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.
| Class | 13F holders | Value held |
|---|---|---|
| OYSEthis pageORDSH | 55 funds | $226.9M |
| OYSERSPACS | 41 funds | $2.6M |
| OYSEUUNIT 05/22/2030 | 6 funds | $3.3M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for OYSE
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.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/OYSE/capital-change-brief"
Use Arkolith's capital_change_brief for OYSE. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for OYSE. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.