Among active 13F managers last quarter, 3 opened and 32 added, while 18 reduced; the largest holder to move was Donald Smith & Co., Inc. (−6.0%). Over the last 180 days, 1 insider bought and 6 insiders sold, a net +$2.2M in open-market trades.
Funds lean in and no leg opposes.
339 tracked 13F filers disclose a position in RDN as of the latest SEC 13F filings, a combined $3.9B 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. | 18.9M | $626.7M | ▼−2.0% Reduced · −395K sh | Q1 2026 | |
| 2 | Vanguard Portfolio Management LLC | 9.3M | $309.2M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 3 | Vanguard Capital Management LLC | 6.1M | $200.9M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 4 | State Street Corp | 6.0M | $225.1M | ▲+3.9% Added · +224K sh | Q2 2026 | |
| 5 | Dimensional Fund Advisors LP | 5.9M | $196.8M | ▲+4.0% Added · +231K sh | Q1 2026 | |
| 6 | American Century Companies Inc | 4.6M | $151.7M | ▲+9.2% Added · +387K sh | Q1 2026 | |
| 7 | Donald Smith & Co., Inc. | 4.3M | $163.1M | ▼−6.0% Reduced · −276K sh | Q2 2026 | |
| 8 | Geode Capital Management, LLC | 3.6M | $135.0M | ▲+4.9% Added · +167K sh | Q2 2026 | |
| 9 | Norges Bank | 2.1M | $77.4M | ▼−9.7% Reduced · −232K sh | Q4 2025 | |
| 10 | Citadel Advisors LLC | 2.1M | $77.8M | ▼−1.7% Reduced · −36K sh | Q2 2026 | |
| 11 | Fuller & Thaler Asset Management, Inc. | 2.0M | $75.4M | ▼−3.7% Reduced · −77K sh | Q2 2026 | |
| 12 | Charles Schwab Investment Management Inc | 2.0M | $64.6M | ▼−67% Reduced · −4.0M sh | Q1 2026 | |
| 13 | BNP Paribas Asset Management Holding S.A. | 1.7M | $55.0M | ▲+6.6% Added · +102K sh | Q1 2026 | |
| 14 | Polar Capital Holdings Plc | 1.7M | $62.5M | ▲+11% Added · +160K sh | Q2 2026 | |
| 15 | Two Sigma Investments, LP | 1.6M | $54.5M | ▲+96% Added · +809K sh | Q1 2026 | |
| 16 | Northern Trust Corp | 1.6M | $54.3M | ▲+3.4% Added · +55K sh | Q1 2026 | |
| 17 | Bruni J V & Co | 1.6M | $59.4M | ▼−0.8% Reduced · −14K sh | Q2 2026 | |
| 18 | Morgan Stanley | 1.5M | $50.3M | ▼−7.8% Reduced · −128K sh | Q1 2026 | |
| 19 | Allianz Asset Management GmbH | 1.4M | $45.7M | ▼−5.6% Reduced · −82K sh | Q1 2026 | |
| 20 | Caisse De Depot Et Placement Du Quebec | 1.3M | $44.5M | ▲+162% Added · +832K sh | Q1 2026 | |
| 21 | Virginia Retirement Systems Et Al | 1.2M | $45.6M | ▼−26% Reduced · −431K sh | Q2 2026 | |
| 22 | Goldman Sachs Group Inc | 1.2M | $39.7M | ▲+38% Added · +329K sh | Q1 2026 | |
| 23 | JPMorgan Chase & Co | 1.2M | $39.6M | ▲+9.7% Added · +105K sh | Q1 2026 | |
| 24 | River Road Asset Management, LLC | 1.1M | $37.3M | ▲+129% Added · +636K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | 1.1M | $37.2M | ▼−4.8% Reduced · −57K 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, 3 funds opened a new position in RDN and 32 added to an existing one, while 18 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 | 187 funds | $236.0B |
| Amazon.com IncAMZN | 186 funds | $173.0B |
| Meta Platforms Inc-Class AMETA | 184 funds | $102.8B |
| Alphabet Inc-CL AGOOGL | 180 funds | $144.7B |
| Nvidia CorpNVDA | 179 funds | $348.6B |
| Eli Lilly & CoLLY | 179 funds | $70.5B |
| Micron Technology IncMU | 178 funds | $37.7B |
| JPMorgan Chase & CoJPM | 177 funds | $54.4B |
| Apple IncAAPL | 176 funds | $263.3B |
| Broadcom IncAVGO | 175 funds | $139.2B |
| Lam Research CorpLRCX | 175 funds | $34.3B |
| Mastercard Inc - AMA | 174 funds | $47.3B |
Ranked by how many of RDN's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in RDN.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 14, 2026 | Hoffman Edward J | Sr EVP, General Counsel | Sell (S) | 20K | $780K |
| Jun 3, 2026 | Conner Brad L. | Director | Sell (S) | 1K | $41K |
| Jun 3, 2026 | Bartholomew Meghan | Sr. EVP, Co-Head of MI | Sell (S) | 1 | $33 |
| Jun 2, 2026 | Weinbach Michael S | Chief Executive Officer- Elect | Buy (P) | 50K | $1.7M |
| Jun 1, 2026 | Weinbach Michael S | Chief Executive Officer- Elect | Buy (P) | 120K | $4.1M |
| May 29, 2026 | Leyden Margaret Anne | Director | Sell (S) | 2K | $72K |
| May 27, 2026 | Culang Howard Bernard | Director | Sell (S) | 4K | $130K |
| May 26, 2026 | Culang Howard Bernard | Director | Sell (S) | 5K | $181K |
| May 26, 2026 | Spiegel Noel Joseph | Director | Sell (S) | 5K | $175K |
| May 8, 2026 | Hoffman Edward J | Sr EVP, General Counsel | Sell (S) | 15K | $570K |
| Apr 29, 2026 | Hoffman Edward J | Sr EVP, General Counsel | Sell (S) | 15K | $555K |
| Apr 23, 2026 | Hoffman Edward J | Sr EVP, General Counsel | Sell (S) | 15K | $540K |
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 | 62 | 29 | – |
Insiders Form 4 open-market | 1 | 6 | +$2.2M |
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.
Connected entities for RDN
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/RDN/capital-change-brief"
Use Arkolith's capital_change_brief for RDN. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + the live filing stream, joined for RDN. Filings are public domain, sourced to SEC EDGAR.