Among active 13F managers last quarter, 21 opened and 19 added, while 13 reduced; the largest holder to move was Price T Rowe Associates Inc (21× the prior stake). Over the last 180 days, 9 insiders sold and 1 insider bought, a net -$43.8M in open-market trades.
The legs disagree, or only one of them leans.
277 tracked 13F filers disclose a position in OUST as of the latest SEC 13F filings, a combined $1.5B 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 | BlackRock, Inc. | 5.6M | $347.4M | ▲+5.0% Added · +267K sh | Q2 2026 | |
| 2 | Vanguard Capital Management LLC | 2.7M | $169.3M | ▲+1.6% Added · +44K sh | Q2 2026 | |
| 3 | State Street Corp | 2.1M | $128.3M | ▲+26% Added · +420K sh | Q2 2026 | |
| 4 | Vanguard Portfolio Management LLC | 1.8M | $112.7M | ▲+1.8% Added · +33K sh | Q2 2026 | |
| 5 | Geode Capital Management, LLC | 1.6M | $102.7M | ▲+13% Added · +193K sh | Q2 2026 | |
| 6 | Price T Rowe Associates Inc | 1.0M | $63.9M | ▲21× Added · +973K sh | Q2 2026 | |
| 7 | D. E. Shaw & Co., Inc. | 842K | $15.5M | ▼−1.2% Reduced · −10K sh | Q1 2026 | |
| 8 | Goldman Sachs Group Inc | 826K | $15.2M | ▲+122% Added · +453K sh | Q1 2026 | |
| 9 | Morgan Stanley | 733K | $13.5M | ▲+4.2% Added · +30K sh | Q1 2026 | |
| 10 | Exchange Traded Concepts, LLC | 669K | $41.8M | ▲13× Added · +617K sh | Q2 2026 | |
| 11 | Penn Capital Management Company, LLC | 656K | $41.1M | ▼−32% Reduced · −314K sh | Q2 2026 | |
| 12 | New York State Common Retirement Fund | 588K | $10.8M | ▲+23% Added · +108K sh | Q1 2026 | |
| 13 | Oberweis Asset Management Inc | 546K | $34.1M | ▲New +546K sh | Q2 2026 | |
| 14 | Mirae Asset Global Etfs Holdings Ltd. | 517K | $9.5M | ▲20× Added · +491K sh | Q1 2026 | |
| 15 | Charles Schwab Investment Management Inc | 488K | $9.0M | ▲+0.2% Added · +857 sh | Q1 2026 | |
| 16 | Northern Trust Corp | 486K | $8.9M | ▲+5.0% Added · +23K sh | Q1 2026 | |
| 17 | Arrowstreet Capital, Limited Partnership | 485K | $8.9M | ▲New +485K sh | Q1 2026 | |
| 18 | Dimensional Fund Advisors LP | 484K | $8.9M | ▲+7.2% Added · +32K sh | Q1 2026 | |
| 19 | Citadel Advisors LLC | 477K | $29.8M | ▲+119% Added · +259K sh | Q2 2026 | |
| 20 | Vanguard Fiduciary Trust Co | 452K | $28.3M | ▲+8.9% Added · +37K sh | Q2 2026 | |
| 21 | Ameriprise Financial Inc | 280K | $5.1M | ▲+32% Added · +68K sh | Q1 2026 | |
| 22 | Next Century Growth Investors LLC | 252K | $15.8M | ▲New +252K sh | Q2 2026 | |
| 23 | Summit Partners Public Asset Management, LLC | 250K | $15.6M | ▲New +250K sh | Q2 2026 | |
| 24 | AQR Capital Management LLC | 231K | $4.3M | ▼−7.7% Reduced · −19K sh | Q1 2026 | |
| 25 | Essex Investment Management Co LLC | 226K | $14.1M | ▲+22% Added · +41K 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, 21 funds opened a new position in OUST and 19 added to an existing one, while 13 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 |
|---|---|---|
| Microsoft CorpMSFT | 157 funds | $187.9B |
| Amazon.com IncAMZN | 157 funds | $143.7B |
| Nvidia CorpNVDA | 155 funds | $305.6B |
| Alphabet Inc-CL AGOOGL | 154 funds | $123.3B |
| Apple IncAAPL | 150 funds | $211.8B |
| Meta Platforms Inc-Class AMETA | 149 funds | $76.9B |
| JPMorgan Chase & CoJPM | 148 funds | $41.9B |
| Micron Technology IncMU | 147 funds | $48.8B |
| Advanced Micro DevicesAMD | 147 funds | $48.2B |
| Broadcom IncAVGO | 146 funds | $128.0B |
| Eli Lilly & CoLLY | 145 funds | $61.2B |
| Visa Inc-Class A SharesV | 145 funds | $43.8B |
Ranked by how many of OUST's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in OUST.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 14, 2026 | Frichtl Mark | Chief Technology Officer | Sell (S) | 19K | $638K |
| Sep 14, 2026 | Spencer Darien | Chief Operating Officer | Sell (S) | 13K | $435K |
| Sep 14, 2026 | Chung Megan | General Counsel and Secretary | Sell (S) | 11K | $390K |
| Sep 14, 2026 | Jacquemet Cyrille | Chief Revenue Officer | Sell (S) | 9K | $302K |
| Sep 14, 2026 | Pacala Charles Angus | President and CEO, Director | Sell (S) | 30K | $1.0M |
| Sep 14, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell (S) | 16K | $533K |
| Aug 18, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell (S) 4 lots, same day | 40K | $1.8M |
| Aug 6, 2026 | Skaggs Stephen A | Director | Sell (S) | 4K | $163K |
| Aug 5, 2026 | Skaggs Stephen A | Director | Sell (S) | 1K | $64K |
| Aug 4, 2026 | Spencer Darien | Chief Operating Officer | Sell (S) | 30K | $1.4M |
| Jun 22, 2026 | Tewksbury Ted L III | Director | Sell (S) | 2K | $80K |
| Jun 12, 2026 | Frichtl Mark | Chief Technology Officer | Sell (S) | 18K | $715K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
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 | 47 | 24 | – |
Insiders Form 4 open-market | 1 | 9 | -$43.8M |
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 |
|---|---|---|
| OUSTthis pagecs | 277 funds | $1.5B |
| 68989M101CL A | 1 funds | $5K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for OUST
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/OUST/capital-change-brief"
Use Arkolith's capital_change_brief for OUST. 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 OUST. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.