Among active 13F managers last quarter, 31 opened and none reduced or exited; the largest holder to move was Magnetar Financial LLC (new position). No recent Form 4 insider filings for PTACU.
Funds lean in and no leg opposes.
32 tracked 13F filers disclose a position in PTACU as of the latest SEC 13F filings, a combined $106.0M 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 | 1.5M | $14.8M | ▲New +1.5M sh | Q2 2026 | |
| 2 | LMR Partners LLP | 1.0M | $10.0M | ▲New +1.0M sh | Q2 2026 | |
| 3 | Tudor Investment Corp Et Al | 750K | $7.5M | ▲New +750K sh | Q2 2026 | |
| 4 | Meteora Capital, LLC | 677K | $6.8M | ▲New +677K sh | Q2 2026 | |
| 5 | Polar Asset Management Partners Inc. | 600K | $6.0M | ▲New +600K sh | Q2 2026 | |
| 6 | Shaolin Capital Management LLC | 504K | $5.0M | ▲New +504K sh | Q2 2026 | |
| 7 | Alberta Investment Management Corp | 500K | $5.0M | ▲New +500K sh | Q2 2026 | |
| 8 | Aristeia Capital, L.L.C. | 500K | $5.0M | ▲New +500K sh | Q2 2026 | |
| 9 | Whitebox Advisors LLC | 400K | $4.0M | ▲New +400K sh | Q2 2026 | |
| 10 | AQR Arbitrage LLC | 389K | $3.9M | ▲New +389K sh | Q2 2026 | |
| 11 | Boothbay Fund Management, LLC | 312K | $3.1M | ▲New +312K sh | Q2 2026 | |
| 12 | Davidson Kempner Capital Management LP | 300K | $3.0M | ▲New +300K sh | Q2 2026 | |
| 13 | Lineage Point Capital LP | 300K | $3.0M | ▲New +300K sh | Q2 2026 | |
| 14 | Heights Capital Management, Inc | 280K | $2.8M | ▲New +280K sh | Q2 2026 | |
| 15 | CSS LLC | 254K | $2.5M | ▲New +254K sh | Q2 2026 | |
| 16 | Moore Capital Management, LP | 250K | $2.5M | ▲New +250K sh | Q2 2026 | |
| 17 | Radcliffe Capital Management, L.P. | 243K | $2.4M | ▲New +243K sh | Q2 2026 | |
| 18 | Rivernorth Capital Management, LLC | 215K | $2.2M | ▲New +215K sh | Q2 2026 | |
| 19 | Periscope Capital Inc. | 201K | $2.0M | ▲New +201K sh | Q2 2026 | |
| 20 | Hudson Bay Capital Management LP | 200K | $2.0M | ▲New +200K sh | Q2 2026 | |
| 21 | Calamos Advisors LLC | 200K | $2.0M | ▲New +200K sh | Q2 2026 | |
| 22 | Ghisallo Capital Management LLC | 200K | $2.0M | ▲New +200K sh | Q2 2026 | |
| 23 | Maltese Capital Management LLC | 200K | $2.0M | ▲New +200K sh | Q2 2026 | |
| 24 | Clear Street Group Inc. | 154K | $1.5M | ▲New +154K sh | Q2 2026 | |
| 25 | Verition Fund Management LLC | 100K | $999K | ▲New +100K 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.
Last quarter, 31 funds opened a new position in PTACU, 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).
| Company | Co-held by | Their position there |
|---|---|---|
| Cantor Equity Partners-CL ACEPF | 24 funds | $119.9M |
| Drugs Made In America Acq-RTDMIIR | 24 funds | $1.4M |
| Gores Holdings XI IncGHXIU | 23 funds | $160.6M |
| Republic Digital Acquis-CL ARDAG | 23 funds | $128.4M |
| Cantor Equity Partners VII-ACAES | 23 funds | $98.8M |
| Republic Digital Acqu - 30RDAGW | 23 funds | $2.5M |
| Berto Acquisition Corp IIGUACU | 22 funds | $162.7M |
| Mountain Lake Acquisiti-CL AMLAA | 22 funds | $148.1M |
| Crane Harbor Acquisitio-CL ACRAN | 22 funds | $125.2M |
| M Evo Global Acquisitio-CL AMEVO | 22 funds | $123.1M |
| M3-Brigade Acquisition-CL AMBVI | 22 funds | $120.0M |
Ranked by how many of PTACU's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in PTACU.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
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 | 0 | 0 | – |
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.
No filings captured for this ticker in the live stream yet.
Connected entities for PTACU
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/PTACU/capital-change-brief"
Use Arkolith's capital_change_brief for PTACU. 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 PTACU. Filings are public domain, sourced to SEC EDGAR.