Who owns Aardvark Therapeutics, Inc. Common Stock (AARD)
Which tracked institutional funds hold AARD, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AARD company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
9 tracked funds added or opened AARD while 5 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
AARD’s largest tracked holder by dollar value, Decheng Capital LLC, sizes it at 3.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 3.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AARD 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 2026-Q1 and 2026-Q2, across 72 tracked filers holding AARD, 39 increased or opened the position and 50 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 AARD between the 2026-Q1 and 2026-Q2 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 1
- EcoR1 Capital, LLC$2M
Full exits 1
- Tetragon Partners GP Ltd$1M
Largest adds
- Decheng Capital LLC$8M
- CITADEL ADVISORS LLC$3M
- AQR CAPITAL MANAGEMENT LLC$2M
- Laurion Capital Management LP$2M
- VANGUARD CAPITAL MANAGEMENT LLC$1M
- ADAGE CAPITAL PARTNERS GP, L.L.C.$597K
Largest trims
- BlackRock, Inc.$2M
- STATE STREET CORP$410K
- UBS Group AG$390K
- GEODE CAPITAL MANAGEMENT, LLC$303K
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 |
|---|---|---|---|---|
| Decheng Capital LLC | 3,917,299 | $23M | 25.6% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,283,166 | $7M | 8.4% | 2026-Q2 |
| Laurion Capital Management LP | 1,034,459 | $6M | 6.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 562,877 | $3M | 3.7% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 480,249 | $3M | 3.1% | 2026-Q2 |
| EcoR1 Capital, LLC new | 396,194 | $2M | 2.6% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 300,000 | $2M | 2.0% | 2026-Q2 |
| BlackRock, Inc. trimmed | 187,045 | $1M | 1.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 149,844 | $864K | 1.0% | 2026-Q2 |
| CANTOR FITZGERALD, L. P. added | 116,582 | $672K | 0.8% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 108,377 | $624K | 0.7% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 79,284 | $457K | 0.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 75,172 | $433K | 0.5% | 2026-Q2 |
| Woodline Partners LP | 72,429 | $417K | 0.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 69,948 | $403K | 0.5% | 2026-Q2 |
| STATE STREET CORP trimmed | 59,273 | $341K | 0.4% | 2026-Q2 |
| J. Goldman & Co LP new | 40,500 | $233K | 0.3% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 38,382 | $221K | 0.3% | 2026-Q2 |
| UBS Group AG trimmed | 35,639 | $205K | 0.2% | 2026-Q2 |
| MORGAN STANLEY added | 30,177 | $174K | 0.2% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 28,080 | $162K | 0.2% | 2026-Q2 |
| CITIGROUP INC trimmed | 26,299 | $151K | 0.2% | 2026-Q2 |
| Cresset Asset Management, LLC trimmed | 24,033 | $138K | 0.2% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 24,025 | $138K | 0.2% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 24,000 | $138K | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 22,872 | $132K | 0.1% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 22,464 | $129K | 0.1% | 2026-Q2 |
| Mariner, LLC new | 21,784 | $125K | 0.1% | 2026-Q2 |
| SMITH, MOORE & CO. new | 20,000 | $115K | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 19,888 | $115K | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP new | 19,076 | $110K | 0.1% | 2026-Q2 |
| FMR LLC added | 18,904 | $109K | 0.1% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 15,917 | $92K | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new | 10,434 | $79K | 0.1% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 12,426 | $72K | 0.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 12,241 | $71K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV new | 11,464 | $66K | 0.1% | 2026-Q2 |
| Cerity Partners LLC new | 10,771 | $62K | 0.1% | 2026-Q2 |
| Abel Hall, LLC new | 10,066 | $58K | 0.1% | 2026-Q2 |
| Arax Advisory Partners added | 8,374 | $48K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 5,893 | $34K | 0.0% | 2026-Q2 |
| Steward Partners Investment Advisory, LLC | 4,150 | $24K | 0.0% | 2026-Q2 |
| China Universal Asset Management Co., Ltd. trimmed | 3,472 | $20K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 2,501 | $14K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 2,259 | $13K | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 1,943 | $11K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,784 | $9K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,308 | $8K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 1,239 | $7K | 0.0% | 2026-Q2 |
| Stone House Investment Management, LLC | 1,000 | $6K | 0.0% | 2026-Q2 |
| Mirae Asset Global Investments Co., Ltd. trimmed | 976 | $6K | 0.0% | 2026-Q2 |
| Allworth Financial LP added | 813 | $5K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 774 | $4K | 0.0% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 646 | $4K | 0.0% | 2026-Q2 |
| Essential Partners LLC trimmed | 509 | $3K | 0.0% | 2026-Q2 |
| GF FUND MANAGEMENT CO. LTD. trimmed | 452 | $3K | 0.0% | 2026-Q2 |
| IFP Advisors, Inc added | 447 | $3K | 0.0% | 2026-Q2 |
| Hilton Head Capital Partners, LLC | 434 | $2K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC new | 388 | $2K | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. added | 349 | $2K | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC added | 265 | $2K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 169 | $1K | 0.0% | 2026-Q2 |
| True Wealth Design, LLC added | 162 | $934 | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 153 | $867 | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC new | 70 | $403 | 0.0% | 2026-Q2 |
| Fortitude Family Office, LLC new | 56 | $323 | 0.0% | 2026-Q2 |
| HARBOUR INVESTMENTS, INC. added | 53 | $304 | 0.0% | 2026-Q2 |
| Wealth Enhancement Trust Services, Inc. new | 48 | $276 | 0.0% | 2026-Q2 |
| Clearstead Advisors, LLC new | 39 | $226 | 0.0% | 2026-Q2 |
| SJS Investment Consulting Inc. added | 16 | $93 | 0.0% | 2026-Q2 |
| Transamerica Financial Advisors, LLC | 14 | $80 | 0.0% | 2026-Q2 |
| JPL Wealth Management, LLC new | 7 | $41 | 0.0% | 2026-Q2 |
| Tetragon Partners GP Ltd new | 316,621 | $1M | 1.4% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 75,149 | $283K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| RENAISSANCE TECHNOLOGIES LLC new | 70,792 | $267K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| SILVERARC CAPITAL MANAGEMENT, LLC trimmed | 33,684 | $127K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Bank of New York Mellon Corp added | 29,320 | $111K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 28,000 | $106K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| GSA CAPITAL PARTNERS LLP trimmed | 27,085 | $102K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Centiva Capital, LP trimmed | 24,782 | $93K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| DEUTSCHE BANK AG\ added | 17,901 | $67K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| ALPS ADVISORS INC trimmed | 17,727 | $67K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Nuveen, LLC trimmed | 15,312 | $58K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 717,430 | $9M | 10.7% | 2025-Q4 stale (2 quarters behind) |
| SymBiosis Capital Partners, LLC new | 476,595 | $6M | 7.1% | 2025-Q4 stale (2 quarters behind) |
| SUPERSTRING CAPITAL MANAGEMENT LP new | 69,496 | $912K | 1.0% | 2025-Q4 stale (2 quarters behind) |
| Schonfeld Strategic Advisors LLC trimmed | 50,131 | $658K | 0.7% | 2025-Q4 stale (2 quarters behind) |
| Propel Bio Management, LLC new | 46,408 | $609K | 0.7% | 2025-Q4 stale (2 quarters behind) |
| Jump Financial, LLC new | 34,575 | $454K | 0.5% | 2025-Q4 stale (2 quarters behind) |
| HRT FINANCIAL LP new | 31,066 | $407K | 0.5% | 2025-Q4 stale (2 quarters behind) |
| TWO SIGMA ADVISERS, LP added | 26,200 | $344K | 0.4% | 2025-Q4 stale (2 quarters behind) |
| Diametric Capital, LP new | 19,309 | $253K | 0.3% | 2025-Q4 stale (2 quarters behind) |
| Trexquant Investment LP new | 16,844 | $221K | 0.3% | 2025-Q4 stale (2 quarters behind) |
| LOS ANGELES CAPITAL MANAGEMENT LLC new | 20,837 | $218K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| Walleye Capital LLC added | 16,048 | $211K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| DIADEMA PARTNERS LP new | 15,882 | $208K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| Balyasny Asset Management L.P. trimmed | 13,817 | $181K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| MetLife Investment Management, LLC new | 7,750 | $102K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Persistent Asset Partners Ltd new | 4,231 | $56K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Cormorant Asset Management, LP | 800,189 | $11M | 12.3% | 2025-Q2 stale (4 quarters behind) |
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.