61 tracked 13F filers disclose a position in PROK as of the latest SEC 13F filings, a combined $75.7M 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 | MONTANOVA CAPITAL, LLC | $22.1M | 12.3M | —Held | Q1 2026 | |
| 2 | MORGAN STANLEY | $16.0M | 9.0M | ▲+1.6% Added · +139K sh | Q1 2026 | |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $4.9M | 2.4M | ▲+94% Added · +1.2M sh | Q2 2026 | |
| 4 | MILLENNIUM MANAGEMENT LLC | $4.1M | 2.3M | ▲+24% Added · +437K sh | Q1 2026 | |
| 5 | Hennion & Walsh Asset Management, Inc. | $3.8M | 1.8M | ▲+15% Added · +236K sh | Q2 2026 | |
| 6 | Artia Global Partners LP | $3.7M | 1.8M | —Held | Q2 2026 | |
| 7 | BlackRock, Inc. | $2.5M | 1.4M | ▼−1.2% Reduced · −17K sh | Q1 2026 | |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $2.2M | 1.3M | ▲+40% Added · +355K sh | Q1 2026 | |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | $2.1M | 1.1M | →First observed position No prior filed position | Q1 2026 | |
| 10 | STATE STREET CORP | $2.1M | 1.0M | ▲+88% Added · +489K sh | Q2 2026 | |
| 11 | MARSHALL WACE, LLP | $1.8M | 1.0M | ▲+65% Added · +399K sh | Q1 2026 | |
| 12 | BANK OF AMERICA CORP /DE/ | $1.3M | 753K | ▲+6.7% Added · +47K sh | Q1 2026 | |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.1M | 628K | ▲+0.7% Added · +5K sh | Q1 2026 | |
| 14 | VANGUARD FIDUCIARY TRUST CO | $964K | 538K | →First observed position No prior filed position | Q1 2026 | |
| 15 | Woodline Partners LP | $895K | 500K | —Held | Q1 2026 | |
| 16 | GOLDMAN SACHS GROUP INC | $755K | 422K | ▼−38% Reduced · −259K sh | Q1 2026 | |
| 17 | TWO SIGMA INVESTMENTS, LP | $620K | 346K | ▼−26% Reduced · −119K sh | Q1 2026 | |
| 18 | UBS Group AG | $599K | 335K | ▼−20% Reduced · −82K sh | Q1 2026 | |
| 19 | Amundi | $522K | 292K | ▲+7.2% Added · +19K sh | Q1 2026 | |
| 20 | JANE STREET GROUP, LLC | $473K | 264K | ▼−46% Reduced · −230K sh | Q1 2026 | |
| 21 | NORTHERN TRUST CORP | $432K | 242K | —Held | Q1 2026 | |
| 22 | Squarepoint Ops LLC | $378K | 211K | ▼−40% Reduced · −140K sh | Q1 2026 | |
| 23 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $366K | 204K | ▼−49% Reduced · −194K sh | Q1 2026 | |
| 24 | Virtus Investment Advisers, LLC | $407K | 200K | ▲+62% Added · +76K sh | Q2 2026 | |
| 25 | BARCLAYS PLC | $262K | 146K | ▼−14% Reduced · −24K 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.
Last quarter, 10 funds opened a new position in PROK and 12 added to an existing one, while 5 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 | 31 funds | $42.3B |
| AMAZON.COM INCAMZN | 30 funds | $24.0B |
| ALPHABET INC-CL AGOOGL | 30 funds | $17.4B |
| META PLATFORMS INC-CLASS AMETA | 30 funds | $12.3B |
| MICRON TECHNOLOGY INCMU | 30 funds | $6.6B |
| MICROSOFT CORPMSFT | 29 funds | $25.5B |
| ELI LILLY & COLLY | 29 funds | $8.5B |
| ADVANCED MICRO DEVICESAMD | 29 funds | $6.6B |
| INTUITIVE SURGICAL INCISRG | 29 funds | $3.6B |
| INTEL CORPINTC | 29 funds | $3.2B |
| ARISTA NETWORKS INCANET | 29 funds | $3.0B |
| GILEAD SCIENCES INCGILD | 29 funds | $2.8B |
Ranked by how many of PROK's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 20, 2026 | Pereira Brian JG | Director | Sell (S) | 27K | $38K |
| Aug 20, 2026 | Pereira Brian JG | Director | Sell (S) | 223K | $317K |
| Aug 19, 2026 | Pereira Brian JG | Director | Sell (S) | 27K | $39K |
| Aug 19, 2026 | Pereira Brian JG | Director | Sell (S) | 223K | $321K |
| Aug 18, 2026 | Pereira Brian JG | Director | Sell (S) | 28K | $38K |
| Aug 18, 2026 | Pereira Brian JG | Director | Sell (S) | 229K | $314K |
| Nov 13, 2025 | Pereira Brian JG | Director | Sell (S) | 54K | $129K |
| Nov 13, 2025 | Pereira Brian JG | Director | Sell (S) | 448K | $1.1M |
| Nov 12, 2025 | Pereira Brian JG | Director | Sell (S) | 28K | $75K |
| Nov 12, 2025 | Pereira Brian JG | Director | Sell (S) | 227K | $619K |
| Jul 8, 2025 | Weber Darin J. | Chief Regulatory Officer | Sell (S) | 103K | $313K |
| Apr 22, 2025 | Control Empresarial de Capitales S.A. de C.V. | 10% Owner | Buy (P) | 387K | $275K |
Connected entities for PROK
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/PROK/capital-change-brief"
Use Arkolith's capital_change_brief for PROK. 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 PROK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.