Who owns CDNA (CDNA)
Which tracked institutional funds hold CDNA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CDNA 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
25 tracked funds added or opened CDNA while 60 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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
CDNA’s largest tracked holder by dollar value, BlackRock, Inc., 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 CDNA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in CDNA 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 190 tracked filers holding CDNA, 98 increased or opened the position and 96 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 CDNA 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 5
- VANGUARD CAPITAL MANAGEMENT LLC$38M
- VANGUARD PORTFOLIO MANAGEMENT LLC$15M
- VANGUARD FIDUCIARY TRUST CO$6M
- Meridiem Capital Partners LP$6M
- VANGUARD ASSET MANAGEMENT, Ltd$577K
Full exits 10
- VANGUARD GROUP INC$57M
- Bellevue Group AG$8M
- Prosight Management, LP$5M
- TWO SIGMA ADVISERS, LP$2M
- Jump Financial, LLC$2M
- Balyasny Asset Management L.P.$2M
Largest adds
- Boston Partners$16M
- BRAIDWELL LP$8M
- Blue Water Life Science Advisors, LP$7M
- Invesco Ltd.$6M
- Chevy Chase Trust Holdings, LLC$6M
- TWO SIGMA INVESTMENTS, LP$2M
Largest trims
- CITADEL ADVISORS LLC$11M
- BlackRock, Inc.$9M
- Portolan Capital Management, LLC$8M
- Connor, Clark & Lunn Investment Management Ltd.$6M
- Zweig-DiMenna Associates LLC$6M
- ArrowMark Colorado Holdings LLC$6M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 4,522,096 | $79M | 7.3% | 2026-Q1 |
| BAMCO INC /NY/ added | 3,336,409 | $58M | 5.4% | 2026-Q1 |
| STATE STREET CORP added | 2,760,385 | $48M | 4.5% | 2026-Q1 |
| ARK Investment Management LLC added | 2,227,556 | $39M | 3.6% | 2026-Q1 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 2,191,000 | $38M | 3.5% | 2026-Q1 |
| BRAIDWELL LP added | 2,173,146 | $38M | 3.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,160,457 | $38M | 3.5% | 2026-Q1 |
| Boston Partners added | 1,883,534 | $33M | 3.0% | 2026-Q1 |
| GAGNON SECURITIES LLC trimmed | 1,761,874 | $31M | 2.8% | 2026-Q1 |
| Chevy Chase Trust Holdings, LLC added | 1,504,075 | $26M | 2.4% | 2026-Q1 |
| Amova Asset Management Americas, Inc. added | 1,475,126 | $26M | 2.4% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 1,475,126 | $26M | 2.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,461,914 | $25M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,254,114 | $22M | 2.0% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,184,398 | $21M | 1.9% | 2026-Q1 |
| Ophir Asset Management Pty Ltd added | 988,051 | $17M | 1.6% | 2026-Q1 |
| Blue Water Life Science Advisors, LP added | 935,000 | $16M | 1.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 874,908 | $15M | 1.4% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 864,468 | $15M | 1.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 851,433 | $15M | 1.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 733,332 | $13M | 1.2% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 575,365 | $10M | 0.9% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 558,336 | $10M | 0.9% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 553,197 | $10M | 0.9% | 2026-Q1 |
| Gagnon Advisors, LLC | 532,892 | $9M | 0.9% | 2026-Q1 |
| Palo Alto Investors LP added | 531,870 | $9M | 0.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 510,405 | $9M | 0.8% | 2026-Q1 |
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE added | 500,000 | $9M | 0.8% | 2026-Q1 |
| ArrowMark Colorado Holdings LLC trimmed | 486,668 | $8M | 0.8% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 470,665 | $8M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 458,301 | $8M | 0.7% | 2026-Q1 |
| Invesco Ltd. added | 457,970 | $8M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 454,508 | $8M | 0.7% | 2026-Q1 |
| MORGAN STANLEY trimmed | 425,349 | $7M | 0.7% | 2026-Q1 |
| Aberdeen Group plc added | 417,744 | $7M | 0.7% | 2026-Q1 |
| Nuveen, LLC added | 390,294 | $7M | 0.6% | 2026-Q1 |
| Zweig-DiMenna Associates LLC trimmed | 390,255 | $7M | 0.6% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 370,183 | $6M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 352,466 | $6M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 345,431 | $6M | 0.6% | 2026-Q1 |
| Portolan Capital Management, LLC trimmed | 340,352 | $6M | 0.5% | 2026-Q1 |
| Meridiem Capital Partners LP added | 316,950 | $6M | 0.5% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 310,539 | $5M | 0.5% | 2026-Q1 |
| Parkman Healthcare Partners LLC added | 291,378 | $5M | 0.5% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 250,351 | $4M | 0.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 231,600 | $4M | 0.4% | 2026-Q1 |
| FMR LLC added | 231,305 | $4M | 0.4% | 2026-Q1 |
| Bullseye Asset Management LLC trimmed | 220,485 | $4M | 0.4% | 2026-Q1 |
| Legal & General Group Plc trimmed | 209,763 | $4M | 0.3% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 197,925 | $3M | 0.3% | 2026-Q1 |
| FRED ALGER MANAGEMENT, LLC trimmed | 173,013 | $3M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 170,347 | $3M | 0.3% | 2026-Q1 |
| Man Group plc trimmed | 166,474 | $3M | 0.3% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 156,483 | $3M | 0.3% | 2026-Q1 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | 139,439 | $2M | 0.2% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P added | 119,252 | $2M | 0.2% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC added | 116,751 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 115,785 | $2M | 0.2% | 2026-Q1 |
| Engineers Gate Manager LP trimmed | 115,207 | $2M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 114,350 | $2M | 0.2% | 2026-Q1 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 101,747 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank | 99,700 | $2M | 0.2% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 98,317 | $2M | 0.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 94,161 | $2M | 0.2% | 2026-Q1 |
| UBS Group AG trimmed | 94,159 | $2M | 0.2% | 2026-Q1 |
| Gotham Asset Management, LLC added | 89,604 | $2M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 84,173 | $1M | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 78,734 | $1M | 0.1% | 2026-Q1 |
| FORMULA GROWTH LTD trimmed | 78,478 | $1M | 0.1% | 2026-Q1 |
| ARS Investment Partners, LLC trimmed | 77,235 | $1M | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 69,444 | $1M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 68,925 | $1M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 65,500 | $1M | 0.1% | 2026-Q1 |
| Uniplan Investment Counsel, Inc. added | 62,773 | $1M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 3,008,658 | $57M | 5.3% | 2025-Q4 stale |
| Hood River Capital Management LLC added | 1,765,981 | $35M | 3.2% | 2025-Q2 stale |
| NEXT CENTURY GROWTH INVESTORS LLC added | 1,125,454 | $22M | 2.0% | 2025-Q2 stale |
| Bellevue Group AG trimmed | 431,070 | $8M | 0.8% | 2025-Q4 stale |
| Kent Lake PR LLC new | 550,000 | $8M | 0.7% | 2025-Q3 stale |
| MACQUARIE GROUP LTD trimmed | 462,952 | $7M | 0.6% | 2025-Q3 stale |
| Driehaus Capital Management LLC trimmed | 348,772 | $6M | 0.6% | 2025-Q1 stale |
| SG Capital Management LLC added | 315,795 | $6M | 0.6% | 2025-Q2 stale |
| OBERWEIS ASSET MANAGEMENT INC/ trimmed | 292,871 | $6M | 0.5% | 2025-Q2 stale |
| Trexquant Investment LP trimmed | 281,349 | $5M | 0.5% | 2025-Q2 stale |
| Prosight Management, LP trimmed | 250,000 | $5M | 0.4% | 2025-Q4 stale |
| LORD, ABBETT & CO. LLC trimmed | 224,576 | $4M | 0.4% | 2025-Q2 stale |
| Qube Research & Technologies Ltd trimmed | 220,204 | $4M | 0.4% | 2025-Q2 stale |
| FIRST TRUST ADVISORS LP added | 188,445 | $3M | 0.3% | 2025-Q3 stale |
| Calamos Advisors LLC added | 143,989 | $3M | 0.2% | 2025-Q1 stale |
| VICTORY CAPITAL MANAGEMENT INC added | 123,639 | $2M | 0.2% | 2025-Q2 stale |
| HUSSMAN STRATEGIC ADVISORS, INC. new | 126,000 | $2M | 0.2% | 2025-Q1 stale |
| SEI INVESTMENTS CO added | 112,493 | $2M | 0.2% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP added | 102,300 | $2M | 0.2% | 2025-Q4 stale |
| Verition Fund Management LLC added | 130,893 | $2M | 0.2% | 2025-Q3 stale |
| Jump Financial, LLC added | 100,956 | $2M | 0.2% | 2025-Q4 stale |
| Balyasny Asset Management L.P. added | 99,870 | $2M | 0.2% | 2025-Q4 stale |
| MILLENNIUM MANAGEMENT LLC trimmed | 99,735 | $2M | 0.2% | 2025-Q4 stale |
| TANG CAPITAL MANAGEMENT LLC | 100,000 | $1M | 0.1% | 2025-Q3 stale |
| HRT FINANCIAL LP added | 98,470 | $1M | 0.1% | 2025-Q3 stale |
| PDT Partners, LLC added | 70,097 | $1M | 0.1% | 2025-Q1 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.