Among active 13F managers last quarter, 2 opened and 6 added, while 11 reduced; the largest holder to move was AQR Arbitrage LLC (−1.4%). No open-market insider trades in the last 180 days.
Funds lean out and no leg opposes.
47 tracked 13F filers disclose a position in TACH as of the latest SEC 13F filings, a combined $263.0M 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 | 2.2M | $22.9M | —Held | Q2 2026 | |
| 2 | Tenor Capital Management Co., L.P. | 2.0M | $20.8M | —Held | Q2 2026 | |
| 3 | AQR Arbitrage LLC | 1.6M | $16.4M | ▼−1.4% Reduced · −23K sh | Q2 2026 | |
| 4 | Millennium Management LLC | 1.4M | $14.7M | ▲+3.4% Added · +47K sh | Q1 2026 | |
| 5 | D. E. Shaw & Co., Inc. | 1.4M | $14.0M | ▲+14% Added · +166K sh | Q1 2026 | |
| 6 | Linden Advisors LP | 1.2M | $12.4M | —Held | Q1 2026 | |
| 7 | Crossingbridge Advisors, LLC | 1.1M | $11.8M | ▲+75% Added · +487K sh | Q2 2026 | |
| 8 | Picton Mahoney Asset Management | 1.0M | $10.6M | ▲+1.5% Added · +15K sh | Q2 2026 | |
| 9 | LMR Partners LLP | 1.0M | $10.4M | —Held | Q2 2026 | |
| 10 | Ghisallo Capital Management LLC | 1.0M | $10.4M | —Held | Q2 2026 | |
| 11 | Hudson Bay Capital Management LP | 915K | $9.5M | —Held | Q2 2026 | |
| 12 | Westchester Capital Management, LLC | 870K | $9.1M | ▼−35% Reduced · −475K sh | Q2 2026 | |
| 13 | Two Sigma Investments, LP | 854K | $8.8M | —Held | Q1 2026 | |
| 14 | Whitebox Advisors LLC | 800K | $8.3M | —Held | Q2 2026 | |
| 15 | CSS LLC | 708K | $7.4M | —Held | Q2 2026 | |
| 16 | Wealthspring Capital LLC | 669K | $7.0M | ▼−7.4% Reduced · −53K sh | Q2 2026 | |
| 17 | Radcliffe Capital Management, L.P. | 625K | $6.5M | ▲~0% Added · +2 sh | Q2 2026 | |
| 18 | Goldman Sachs Group Inc | 536K | $5.5M | —Held | Q1 2026 | |
| 19 | Alberta Investment Management Corp | 500K | $5.2M | —Held | Q2 2026 | |
| 20 | Berkley W R Corp | 496K | $5.1M | —Held | Q1 2026 | |
| 21 | Rivernorth Capital Management, LLC | 455K | $4.8M | —Held | Q2 2026 | |
| 22 | Centiva Capital, LP | 450K | $4.7M | ▲New +450K sh | Q2 2026 | |
| 23 | Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 400K | $4.1M | —Held | Q1 2026 | |
| 24 | Shaolin Capital Management LLC | 396K | $4.1M | ▲+32% Added · +96K sh | Q2 2026 | |
| 25 | First Trust Capital Management L.P. | 352K | $3.7M | —Held | 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, 2 funds opened a new position in TACH and 6 added to an existing one, while 11 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 |
|---|---|---|
| Republic Digital Acquis-CL ARDAG | 35 funds | $186.6M |
| Wen Acquisition Corp-AWENN | 34 funds | $175.7M |
| Eqv Ventures Acquisition C-AEVAC | 32 funds | $221.2M |
| Cantor Equity Partners-CL ACEPV | 32 funds | $96.6M |
| Mountain Lake Acquisiti-CL AMLAA | 31 funds | $165.7M |
| Cantor Equity Partners-CL ACEPF | 31 funds | $165.5M |
| Pioneer Acquisition I-CL APACH | 31 funds | $142.6M |
| Soulpower Acquisition Co-ASOUL | 30 funds | $183.6M |
| Cal Redwood Acquisit-CL ACRAQ | 30 funds | $170.1M |
| Sizzle Acquisition Corp-CL ASZZL | 30 funds | $164.8M |
| New Providence Acquisition-ANPAC | 29 funds | $181.2M |
| Apex Treasury Corp-CL AAPXT | 29 funds | $174.5M |
Ranked by how many of TACH's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in TACH.
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 | 7 | 14 | – |
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 |
|---|---|---|
| TACHthis pageEquity | 47 funds | $263.0M |
| TACHWWarrant | 37 funds | $6.9M |
| TACHUUNIT 04/09/2030 | 5 funds | $1.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for TACH
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/TACH/capital-change-brief"
Use Arkolith's capital_change_brief for TACH. 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 TACH. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.