123 tracked 13F filers disclose a position in JACK as of the latest SEC 13F filings, a combined $178.1M 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Callodine Capital Management, LP | $17.0M | 1.8M | ▲+3.5% Added · +60K sh | Q1 2026 | |
| 2 | Nantahala Capital Management, LLC | $27.3M | 1.7M | ▲+12% Added · +186K sh | Q2 2026 | |
| 3 | BIGLARI CAPITAL CORP. | $16.3M | 1.7M | —Held | Q1 2026 | |
| 4 | BlackRock, Inc. | $12.4M | 1.3M | ▼−9.7% Reduced · −137K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $7.9M | 817K | →First observed position No prior filed position | Q1 2026 | |
| 6 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $6.7M | 696K | ▲+8.9% Added · +57K sh | Q1 2026 | |
| 7 | BANK OF AMERICA CORP /DE/ | $6.0M | 623K | ▲+21% Added · +109K sh | Q1 2026 | |
| 8 | EARNEST PARTNERS LLC | $8.7M | 552K | ▲+76% Added · +238K sh | Q2 2026 | |
| 9 | MARSHALL WACE, LLP | $5.1M | 526K | ▲15× Added · +491K sh | Q1 2026 | |
| 10 | Allianz Asset Management GmbH | $4.9M | 506K | ▲+63% Added · +197K sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $7.7M | 487K | ▲+16% Added · +66K sh | Q2 2026 | |
| 12 | IPG Investment Advisors LLC | $7.4M | 469K | ▼−12% Reduced · −67K sh | Q2 2026 | |
| 13 | STATE STREET CORP | $6.2M | 393K | ▲+0.8% Added · +3K sh | Q2 2026 | |
| 14 | MANNING & NAPIER ADVISORS LLC | $3.6M | 376K | ▲+0.4% Added · +2K sh | Q1 2026 | |
| 15 | JPMORGAN CHASE & CO | $3.4M | 358K | ▼−9.8% Reduced · −39K sh | Q1 2026 | |
| 16 | MILLENNIUM MANAGEMENT LLC | $2.8M | 288K | ▲New +288K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $2.3M | 236K | ▼−39% Reduced · −149K sh | Q1 2026 | |
| 18 | AQR CAPITAL MANAGEMENT LLC | $1.7M | 184K | ▲+55% Added · +66K sh | Q1 2026 | |
| 19 | Windward Management LP | $2.9M | 182K | —Held | Q2 2026 | |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.6M | 170K | →First observed position No prior filed position | Q1 2026 | |
| 21 | Janus Henderson Group Ltd. | $1.6M | 169K | ▼−43% Reduced · −126K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $1.4M | 150K | ▲+1.6% Added · +2K sh | Q1 2026 | |
| 23 | BALYASNY ASSET MANAGEMENT L.P. | $1.4M | 141K | ▲New +141K sh | Q1 2026 | |
| 24 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.3M | 134K | ▲Added Added · +134K sh | Q1 2026 | |
| 25 | VANGUARD FIDUCIARY TRUST CO | $1.2M | 127K | →First observed position No prior filed position | 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, 7 funds opened a new position in JACK and 23 added to an existing one, while 12 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 61 funds | $203.1B |
| AMAZON.COM INCAMZN | 61 funds | $93.8B |
| COSTCO WHOLESALE CORPCOST | 61 funds | $17.3B |
| APPLE INCAAPL | 60 funds | $150.8B |
| MICROSOFT CORPMSFT | 60 funds | $134.3B |
| META PLATFORMS INC-CLASS AMETA | 60 funds | $58.1B |
| LAM RESEARCH CORPLRCX | 60 funds | $15.8B |
| BROADCOM INCAVGO | 59 funds | $80.0B |
| ALPHABET INC-CL AGOOGL | 59 funds | $69.2B |
| TESLA INCTSLA | 59 funds | $34.0B |
| MICRON TECHNOLOGY INCMU | 59 funds | $19.4B |
| GENERAL ELECTRICGE | 59 funds | $16.8B |
Ranked by how many of JACK's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 14, 2026 | King Mark James | Exec Chairman & Interim CEO, Director | Sell (S) | 6K | $105K |
| Jul 21, 2026 | King Mark James | Exec Chairman & Interim CEO, Director | Sell (S) | 6K | $83K |
| Jun 18, 2026 | King Mark James | Exec Chairman & Interim CEO, Director | Sell (S) | 6K | $74K |
| May 28, 2026 | DIAZ GUILLERMO JR | Director | Buy (P) | 6K | $0 |
| May 28, 2026 | DIAZ GUILLERMO JR | Director | Buy (P) | 6K | $69K |
| May 4, 2026 | COOK RICHARD D | SVP, CHIEF TECHNOLOGY OFFICER | Sell (S) | 1K | $12K |
| May 4, 2026 | SUPER SARAH L | EVP, Chief Legal&Admin Officer | Sell (S) | 2K | $22K |
| May 4, 2026 | HOOPER DAWN E | EVP, Chief Financial Officer | Sell (S) | 738 | $9K |
| May 4, 2026 | MOUNT CARL | SVP, CHF SUPPLY CHAIN OFFICER | Sell (S) | 1K | $14K |
| May 4, 2026 | Piano Steven | SVP, CHIEF PEOPLE OFFICER | Sell (S) | 922 | $11K |
| Jan 28, 2026 | Tucker Lance F. | DIRECTOR & CEO, Director | Sell (S) | 2K | $37K |
| Jan 28, 2026 | Tucker Lance F. | DIRECTOR & CEO, Director | Sell (S) | 1K | $32K |
Connected entities for JACK
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/JACK/capital-change-brief"
Use Arkolith's capital_change_brief for JACK. 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 JACK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.