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/GPK/capital-change-brief"
Use Arkolith's capital_change_brief for GPK. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $361.8M | 36.4M | ▲+40% Added · +10.3M sh | Q1 2026 | |
| 2 | FULLER & THALER ASSET MANAGEMENT, INC. | $201.9M | 20.3M | ▲+8.6% Added · +1.6M sh | Q1 2026 | |
| 3 | Allspring Global Investments Holdings, LLC | $172.7M | 18.0M | ▼−7.7% Reduced · −1.5M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $144.2M | 14.5M | ▲New +14.5M sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $131.9M | 13.3M | ▲New +13.3M sh | Q1 2026 | |
| 6 | DIMENSIONAL FUND ADVISORS LP | $108.0M | 10.9M | ▼−7.4% Reduced · −864K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $101.6M | 10.1M | ▲+2.4% Added · +234K sh | Q1 2026 | |
| 8 | FMR LLC | $99.4M | 10.0M | ▼−13% Reduced · −1.5M sh | Q1 2026 | |
| 9 | DME Capital Management, LP | $90.5M | 9.1M | ▲+8.1% Added · +685K sh | Q1 2026 | |
| 10 | MANNING & NAPIER ADVISORS LLC | $84.3M | 8.5M | ▲64× Added · +8.3M sh | Q1 2026 | |
| 11 | AQR CAPITAL MANAGEMENT LLC | $78.3M | 8.0M | ▼−8.3% Reduced · −725K sh | Q1 2026 | |
| 12 | AMERICAN CENTURY COMPANIES INC | $77.5M | 7.8M | ▼−59% Reduced · −11.4M sh | Q1 2026 | |
| 13 | UBS Group AG | $75.5M | 7.6M | ▼−16% Reduced · −1.4M sh | Q1 2026 | |
| 14 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $74.1M | 7.5M | ▼−31% Reduced · −3.3M sh | Q1 2026 | |
| 15 | MORGAN STANLEY | $62.4M | 6.3M | ▲+44% Added · +1.9M sh | Q1 2026 | |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | $58.4M | 5.9M | ▲+3.7% Added · +211K sh | Q1 2026 | |
| 17 | CITADEL ADVISORS LLC | $54.4M | 5.5M | ▲+457% Added · +4.5M sh | Q1 2026 | |
| 18 | MILLENNIUM MANAGEMENT LLC | $52.6M | 5.3M | ▲+255% Added · +3.8M sh | Q1 2026 | |
| 19 | Qube Research & Technologies Ltd | $45.7M | 4.6M | ▲+341% Added · +3.6M sh | Q1 2026 | |
| 20 | SHAPIRO CAPITAL MANAGEMENT LLC | $42.5M | 4.3M | ▼−27% Reduced · −1.6M sh | Q1 2026 | |
| 21 | BANK OF AMERICA CORP /DE/ | $38.9M | 3.9M | ▲+16% Added · +539K sh | Q1 2026 | |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $37.1M | 3.7M | ▲+12% Added · +391K sh | Q1 2026 | |
| 23 | NORGES BANK | $54.0M | 3.6M | ▲+36% Added · +947K sh | Q4 2025 | |
| 24 | Squarepoint Ops LLC | $34.3M | 3.5M | ▲+14% Added · +416K sh | Q1 2026 | |
| 25 | D. E. Shaw & Co., Inc. | $31.2M | 3.1M | ▲+320% Added · +2.4M sh | 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 1, 2026 | Fishbein Daniel S. | EVP, Gen Counsel & Secretary | Grant (A) | 40K | $0 |
| Jul 1, 2026 | Fishbein Daniel S. | EVP, Gen Counsel & Secretary | Grant (A) | 189K | $0 |
| May 20, 2026 | Venturelli Larry M | Director | Grant (A) | 16K | $0 |
| May 20, 2026 | MARTENS PHILIP R | Director | Grant (A) | 16K | $0 |
| May 20, 2026 | Maselli Alessandro | Director | Grant (A) | 16K | $0 |
| May 20, 2026 | Stafeil Jeffrey | Director | Buy (P) | 16K | $0 |
| May 20, 2026 | BRLAS LAURIE | Director | Grant (A) | 16K | $0 |
| May 20, 2026 | Callahan Andrew P | Director | Grant (A) | 16K | $0 |
| May 8, 2026 | HAGEMANN ROBERT | Director | Buy (P) | 14K | $154K |
| May 7, 2026 | Stafeil Jeffrey | Director | Buy (P) | 18K | $200K |
| Apr 1, 2026 | Fallan Scott | SVP & President, International | Option exercise (M) | 1K | $0 |
| Apr 1, 2026 | Fallan Scott | SVP & President, International | Tax withholding (F) | 592 | $6K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 146 funds | $52.1B |
| AMAZON.COM INCAMZN | 144 funds | $42.6B |
| ELI LILLY & COLLY | 144 funds | $14.3B |
| ALPHABET INC-CL AGOOGL | 142 funds | $34.0B |
| META PLATFORMS INC-CLASS AMETA | 141 funds | $22.8B |
| NVIDIA CORPNVDA | 140 funds | $76.7B |
| BROADCOM INCAVGO | 140 funds | $27.6B |
| COSTCO WHOLESALE CORPCOST | 140 funds | $9.1B |
| BANK OF AMERICA CORPBAC | 140 funds | $6.3B |
| BOSTON SCIENTIFIC CORPBSX | 140 funds | $3.7B |
| MASTERCARD INC - AMA | 139 funds | $9.0B |
| NETFLIX INCNFLX | 139 funds | $6.8B |
Ranked by how many of GPK's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for GPK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.