Among active 13F managers last quarter, 16 opened and 20 added, while 22 reduced; the largest holder to move was Woodline Partners LP (+24%). Over the last 180 days, 9 insiders sold and none bought, a net -$419.2M in open-market trades.
The legs disagree, or only one of them leans.
171 tracked 13F filers disclose a position in GRDN as of the latest SEC 13F filings, a combined $900.7M 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 | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 2.4M | $88.9M | ▲1k× Added · +2.4M sh | Q1 2026 | |
| 2 | BlackRock, Inc. | 1.8M | $66.1M | ▲+0.8% Added · +14K sh | Q1 2026 | |
| 3 | Woodline Partners LP | 1.3M | $49.2M | ▲+24% Added · +252K sh | Q1 2026 | |
| 4 | Brown Advisory Inc | 1.3M | $47.4M | ▼−23% Reduced · −378K sh | Q1 2026 | |
| 5 | Vanguard Capital Management LLC | 1.2M | $46.2M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 6 | Valiant Capital Management, L.P. | 1.2M | $44.7M | ▼−3.7% Reduced · −46K sh | Q1 2026 | |
| 7 | T. Rowe Price Investment Management, Inc. | 1.0M | Withheld | ▲New +1.0M sh | Q1 2026 | |
| 8 | Boston Partners | 1.0M | $38.4M | ▼−3.5% Reduced · −37K sh | Q1 2026 | |
| 9 | Franklin Templeton Inc | 953K | $35.9M | ▼−3.9% Reduced · −38K sh | Q1 2026 | |
| 10 | Loomis Sayles & Co L P | 932K | $35.1M | ▲+47% Added · +296K sh | Q1 2026 | |
| 11 | Jennison Associates LLC | 823K | $31.0M | ▲+610% Added · +707K sh | Q1 2026 | |
| 12 | Geode Capital Management, LLC | 647K | $27.1M | ▲+16% Added · +88K sh | Q2 2026 | |
| 13 | Boone Capital Management LLC | 631K | $23.8M | ▲New +631K sh | Q1 2026 | |
| 14 | State Street Corp | 590K | $24.7M | ▲+16% Added · +81K sh | Q2 2026 | |
| 15 | Nuveen, LLC | 537K | $20.2M | ▼−16% Reduced · −105K sh | Q1 2026 | |
| 16 | Aristotle Capital Boston, LLC | 496K | $18.7M | ▼−16% Reduced · −93K sh | Q1 2026 | |
| 17 | Marshall Wace, LLP | 418K | $15.7M | ▲New +418K sh | Q1 2026 | |
| 18 | Silvercrest Asset Management Group LLC | 375K | $14.1M | ▼−51% Reduced · −398K sh | Q1 2026 | |
| 19 | Sei Investments Co | 358K | $13.5M | ▲+40% Added · +103K sh | Q1 2026 | |
| 20 | Braun Stacey Associates Inc | 340K | $14.2M | ▲New +340K sh | Q2 2026 | |
| 21 | Two Sigma Investments, LP | 313K | $11.8M | ▲+109% Added · +163K sh | Q1 2026 | |
| 22 | Alyeska Investment Group, L.P. | 275K | $10.4M | ▲New +275K sh | Q1 2026 | |
| 23 | Raymond James Financial Inc | 261K | $9.7M | ▲New +261K sh | Q1 2026 | |
| 24 | Vanguard Portfolio Management LLC | 249K | $9.4M | →New filer Inherited book · not a new buyer | Q1 2026 | |
| 25 | Riverbridge Partners LLC | 245K | $10.2M | ▲New +245K 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. 1 value row is withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 16 funds opened a new position in GRDN and 20 added to an existing one, while 22 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 |
|---|---|---|
| Amazon.com IncAMZN | 93 funds | $148.4B |
| Nvidia CorpNVDA | 92 funds | $284.9B |
| Microsoft CorpMSFT | 92 funds | $197.6B |
| Alphabet Inc-CL AGOOGL | 92 funds | $114.7B |
| Eli Lilly & CoLLY | 91 funds | $56.7B |
| Micron Technology IncMU | 91 funds | $26.5B |
| Apple IncAAPL | 89 funds | $205.4B |
| Meta Platforms Inc-Class AMETA | 89 funds | $85.6B |
| JPMorgan Chase & CoJPM | 89 funds | $43.1B |
| Oracle CorpORCL | 89 funds | $18.5B |
| Broadcom IncAVGO | 87 funds | $118.4B |
| Alphabet Inc-CL CGOOG | 87 funds | $95.2B |
Ranked by how many of GRDN's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in GRDN.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 20, 2026 | Cardinal Equity Fund, L.P. | Insider | Sell (S) | 276K | $8.2M |
| Mar 20, 2026 | Forbes Kendall | See Remarks | Sell (S) | 347K | $10.3M |
| Mar 20, 2026 | Bindley William E | Director, 10% Owner | Sell (S) | 3.6M | $106.0M |
| Mar 20, 2026 | Ackerman John | Director | Sell (S) 2 lots, same day | 1.1M | $32.7M |
| Mar 20, 2026 | Bindley Capital Partners I, LLC | 10% Owner | Sell (S) | 3.6M | $106.0M |
| Mar 20, 2026 | Salentine Thomas J Jr | Director, 10% Owner | Sell (S) | 3.6M | $106.0M |
| Mar 20, 2026 | Burke Fred | See Remarks, Director | Sell (S) | 671K | $19.9M |
| Mar 20, 2026 | Pharmacy Investors, LLC | Insider | Sell (S) | 828K | $24.6M |
| Mar 20, 2026 | Morris David K | See Remarks, Director | Sell (S) | 188K | $5.6M |
| Dec 3, 2025 | Cosler Steven D | Director | Buy (P) | 3K | $100K |
| May 28, 2025 | Pharmacy Investors, LLC | Insider | Sell (S) | 151K | $3.0M |
| May 28, 2025 | Cardinal Equity Fund, L.P. | Insider | Sell (S) | 50K | $1.0M |
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 | 38 | 30 | – |
Insiders Form 4 open-market | 0 | 9 | -$419.2M |
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 GRDN
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/GRDN/capital-change-brief"
Use Arkolith's capital_change_brief for GRDN. 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 GRDN. Filings are public domain, sourced to SEC EDGAR.