Who owns GRDN (GRDN)
Which tracked institutional funds hold GRDN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GRDN company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on GRDN is one-sided between 2025-Q4 and 2026-Q1: 71 added or opened and 14 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GRDN’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes GRDN more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in GRDN divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 170 tracked filers holding GRDN, 111 increased or opened the position and 59 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GRDN between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 29
- VANGUARD CAPITAL MANAGEMENT LLC$46M
- T. Rowe Price Investment Management, Inc.$39M
- BOONE CAPITAL MANAGEMENT LLC$24M
- CITADEL ADVISORS LLC$22M
- MARSHALL WACE, LLP$16M
- Alyeska Investment Group, L.P.$10M
Full exits 3
- VANGUARD GROUP INC$36M
- Balyasny Asset Management L.P.$573K
- SG Americas Securities, LLC$572K
Largest adds
- FMR LLC$86M
- WELLINGTON MANAGEMENT GROUP LLP$31M
- JENNISON ASSOCIATES LLC$27M
- Woodline Partners LP$17M
- LOOMIS SAYLES & CO L P$16M
- BlackRock, Inc.$14M
Largest trims
- SILVERCREST ASSET MANAGEMENT GROUP LLC$9M
- MILLENNIUM MANAGEMENT LLC$4M
- ROYCE & ASSOCIATES LP$2M
- BROWN ADVISORY INC$2M
- Sterling Capital Management LLC$1M
- JANUS HENDERSON GROUP PLC$914K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FMR LLC added | 2,272,361 | $86M | 7.8% | 2026-Q1 |
| BlackRock, Inc. added | 1,756,374 | $66M | 6.0% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 1,717,183 | $65M | 5.9% | 2026-Q1 |
| Woodline Partners LP added | 1,306,318 | $49M | 4.5% | 2026-Q1 |
| BROWN ADVISORY INC trimmed | 1,259,174 | $47M | 4.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,225,543 | $46M | 4.2% | 2026-Q1 |
| Valiant Capital Management, L.P. trimmed | 1,186,658 | $45M | 4.1% | 2026-Q1 |
| TimesSquare Capital Management, LLC added | 1,077,474 | $41M | 3.7% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. new | 1,028,389 | $39M | 3.5% | 2026-Q1 |
| Boston Partners trimmed | 1,017,683 | $38M | 3.5% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 952,952 | $36M | 3.3% | 2026-Q1 |
| LOOMIS SAYLES & CO L P added | 931,689 | $35M | 3.2% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 822,784 | $31M | 2.8% | 2026-Q1 |
| BOONE CAPITAL MANAGEMENT LLC new | 631,193 | $24M | 2.2% | 2026-Q1 |
| Driehaus Capital Management LLC added | 589,121 | $22M | 2.0% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 579,121 | $22M | 2.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 559,035 | $21M | 1.9% | 2026-Q1 |
| Nuveen, LLC trimmed | 537,451 | $20M | 1.9% | 2026-Q1 |
| STATE STREET CORP added | 509,018 | $19M | 1.8% | 2026-Q1 |
| Aristotle Capital Boston, LLC trimmed | 495,856 | $19M | 1.7% | 2026-Q1 |
| MARSHALL WACE, LLP added | 417,710 | $16M | 1.4% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 374,946 | $14M | 1.3% | 2026-Q1 |
| SEI INVESTMENTS CO added | 358,181 | $13M | 1.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 312,675 | $12M | 1.1% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 275,000 | $10M | 0.9% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 261,019 | $10M | 0.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 248,513 | $9M | 0.9% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 208,594 | $8M | 0.7% | 2026-Q1 |
| Clearbridge Investments, LLC trimmed | 202,815 | $8M | 0.7% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 201,603 | $8M | 0.7% | 2026-Q1 |
| SEVEN GRAND MANAGERS, LLC added | 200,000 | $8M | 0.7% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 195,072 | $7M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 189,249 | $7M | 0.7% | 2026-Q1 |
| Lisanti Capital Growth, LLC new | 188,150 | $7M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 173,159 | $7M | 0.6% | 2026-Q1 |
| Ranger Investment Management, L.P. trimmed | 167,190 | $6M | 0.6% | 2026-Q1 |
| Trexquant Investment LP added | 163,020 | $6M | 0.6% | 2026-Q1 |
| J. Goldman & Co LP added | 159,572 | $6M | 0.5% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 147,502 | $6M | 0.5% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 141,840 | $5M | 0.5% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC trimmed | 136,012 | $5M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 128,048 | $5M | 0.4% | 2026-Q1 |
| Ghisallo Capital Management LLC added | 125,000 | $5M | 0.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 116,968 | $4M | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 115,576 | $4M | 0.4% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 114,726 | $4M | 0.4% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 105,434 | $4M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 99,989 | $4M | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 98,172 | $4M | 0.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP new | 93,677 | $4M | 0.3% | 2026-Q1 |
| CSM Advisors, LLC trimmed | 91,770 | $3M | 0.3% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 87,096 | $3M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 79,332 | $3M | 0.3% | 2026-Q1 |
| BESSEMER GROUP INC new | 78,656 | $3M | 0.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 75,683 | $3M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 69,432 | $3M | 0.2% | 2026-Q1 |
| Legato Capital Management LLC new | 58,890 | $2M | 0.2% | 2026-Q1 |
| Kiker Wealth Management, LLC new | 57,027 | $2M | 0.2% | 2026-Q1 |
| Inspire Investing, LLC new | 49,565 | $2M | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 49,304 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 48,300 | $2M | 0.2% | 2026-Q1 |
| Jain Global LLC trimmed | 47,065 | $2M | 0.2% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P | 44,354 | $2M | 0.2% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 41,786 | $2M | 0.1% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 38,185 | $1M | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 36,360 | $1M | 0.1% | 2026-Q1 |
| Sanctuary Advisors, LLC new | 35,901 | $1M | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 35,476 | $1M | 0.1% | 2026-Q1 |
| UBS Group AG added | 30,735 | $1M | 0.1% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC trimmed | 30,708 | $1M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC new | 30,389 | $1M | 0.1% | 2026-Q1 |
| CREDIT AGRICOLE S A | 30,000 | $1M | 0.1% | 2026-Q1 |
| Maven Securities LTD added | 30,000 | $1M | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 27,194 | $1M | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP trimmed | 26,593 | $1M | 0.1% | 2026-Q1 |
| TD Asset Management Inc new | 25,864 | $974K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 25,700 | $968K | 0.1% | 2026-Q1 |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY new | 24,800 | $934K | 0.1% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 24,478 | $922K | 0.1% | 2026-Q1 |
| Quadrature Capital Ltd trimmed | 23,522 | $886K | 0.1% | 2026-Q1 |
| DARK FOREST CAPITAL MANAGEMENT LP new | 22,978 | $865K | 0.1% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 22,785 | $858K | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC new | 21,125 | $796K | 0.1% | 2026-Q1 |
| HUSSMAN STRATEGIC ADVISORS, INC. new | 21,000 | $791K | 0.1% | 2026-Q1 |
| Sterling Capital Management LLC trimmed | 20,404 | $768K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 19,340 | $728K | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 18,664 | $703K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 17,814 | $671K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 17,486 | $659K | 0.1% | 2026-Q1 |
| OCCUDO QUANTITATIVE STRATEGIES LP trimmed | 17,693 | $656K | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 16,548 | $623K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 16,164 | $609K | 0.1% | 2026-Q1 |
| Gotham Asset Management, LLC added | 15,988 | $602K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 1,190,992 | $36M | 3.3% | 2025-Q4 stale |
| Walleye Capital LLC added | 187,069 | $5M | 0.4% | 2025-Q3 stale |
| Rakuten Investment Management, Inc. added | 16,493 | $2M | 0.2% | 2025-Q3 stale |
| Foundry Partners, LLC trimmed | 99,190 | $2M | 0.2% | 2025-Q1 stale |
| BRANT POINT INVESTMENT MANAGEMENT LLC added | 70,210 | $1M | 0.1% | 2025-Q2 stale |
| Calamos Advisors LLC trimmed | 27,949 | $596K | 0.1% | 2025-Q2 stale |
| Balyasny Asset Management L.P. trimmed | 19,033 | $573K | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.