DaveManuel.com · Institutional Ownership · Who Owns It
DIANTHUS THERAPEUTICS INC (DNTH)
Institutional ownership reported to the SEC as of Q2 2026, across 13 quarters.
271
Reporting holders
$6.5B
Reported value
118.1%
Of shares outstanding
0.4%
Calls
0.4%
Puts
+29
Holder change
Institutions report 66,035,999 shares against 55,934,378 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| FMR LLC | $799.3M | 8,199,893 | 0.03% | 12q | +5.6%+$42.1M |
| BlackRock, Inc. | $402.0M | 4,123,822 | 0.01% | 8q | +29.9%+$92.4M |
| T. Rowe Price Investment Management, Inc. | $379.0M | 3,888,456 | 0.25% | 2q | +200.9%+$253.1M |
| WELLINGTON MANAGEMENT GROUP LLP | $314.8M | 3,229,882 | 0.05% | 8q | +24.4%+$61.8M |
| Fairmount Funds Management LLC | $247.3M | 2,537,191 | 16.35% | 12q | HELD |
| PRICE T ROWE ASSOCIATES INC /MD/ | $245.2M | 2,514,946 | 0.02% | 8q | +119.3%+$133.4M |
| STATE STREET CORP | $229.8M | 2,357,440 | 0.01% | 10q | +68.5%+$93.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $210.5M | 2,159,568 | 0.00% | 2q | +6.3%+$12.5M |
| Avidity Partners Management LP | $205.1M | 2,104,184 | 32.85% | 12q | -50.0%-$205.1M |
| Octagon Capital Advisors LP | $179.5M | 1,841,667 | 16.14% | 12q | -5.4%-$10.2M |
| TCG Crossover Management, LLC | $163.4M | 1,676,624 | 3.93% | 7q | HELD |
| FRED ALGER MANAGEMENT, LLC | $127.0M | 1,302,493 | 0.42% | 4q | +12.1%+$13.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $122.7M | 1,258,502 | 0.01% | 12q | +37.4%+$33.4M |
| Venrock Adviser, LLC | $115.0M | 1,180,000 | 3.49% | 12q | HELD |
| UBS Group AG | $111.2M | 1,140,260 | 0.01% | 12q | +45.9%+$35.0M |
| DEERFIELD MANAGEMENT COMPANY, L.P. | $109.7M | 1,125,313 | 1.14% | 2q | +10.3%+$10.3M |
| CITADEL ADVISORS LLC | $100.0M incl. $5.0M options CALL+PUT | 974,911 | 0.01% | 8q | -39.5%-$65.2M |
| JENNISON ASSOCIATES LLC | $99.6M | 1,021,763 | 0.06% | 2q | +110.6%+$52.3M |
| Polar Capital Holdings Plc | $99.3M | 1,018,726 | 0.23% | 4q | -5.3%-$5.6M |
| FRANKLIN RESOURCES INC | $94.5M | 968,983 | 0.02% | 4q | HELD |
| BAKER BROS. ADVISORS LP | $83.1M | 852,164 | 0.42% | 5q | HELD |
| Logos Global Management LP | $78.0M | 800,000 | 3.36% | 4q | +100.0%+$39.0M |
| Cormorant Asset Management, LP | $73.1M | 750,000 | 3.75% | 2q | -21.1%-$19.5M |
| ALLIANCEBERNSTEIN L.P. | $70.0M | 834,150 | 0.02% | 9q | -9.9%-$7.7M |
| BRAIDWELL LP | $58.0M | 594,562 | 2.14% | 4q | -33.9%-$29.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $55.6M | 570,115 | 0.00% | 2q | +63.2%+$21.5M |
| Assenagon Asset Management S.A. | $54.7M | 561,298 | 0.03% | new | NEW |
| AMERIPRISE FINANCIAL INC | $51.9M | 531,999 | 0.01% | 5q | +24.0%+$10.0M |
| Woodline Partners LP | $48.8M | 500,548 | 0.15% | 9q | +15.5%+$6.5M |
| BARCLAYS PLC | $42.1M | 431,753 | 0.01% | 11q | +13.7%+$5.1M |
| LORD, ABBETT & CO. LLC | $41.2M | 422,185 | 0.12% | 2q | +41.1%+$12.0M |
| MPM BIOIMPACT LLC | $40.9M | 420,002 | 2.50% | 2q | -0.9%-$388.0K |
| NORTHERN TRUST CORP | $40.1M | 411,791 | 0.00% | 11q | +35.6%+$10.5M |
| Affinity Asset Advisors, LLC | $39.0M | 400,000 | 1.76% | 4q | +14.3%+$4.9M |
| SILVERARC CAPITAL MANAGEMENT, LLC | $38.0M | 390,000 | 3.95% | 6q | -40.4%-$25.8M |
| GOLDMAN SACHS GROUP INC | $37.3M | 382,161 | 0.00% | 10q | -30.3%-$16.2M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $35.7M | 365,963 | 0.00% | 9q | +19.8%+$5.9M |
| Bain Capital Life Sciences Investors, LLC | $35.3M | 362,470 | 2.10% | 10q | HELD |
| Spruce Street Capital LP | $34.6M | 354,816 | 6.79% | 3q | -4.9%-$1.8M |
| Vivo Capital, LLC | $34.5M | 353,998 | 3.15% | 4q | HELD |
| DIMENSIONAL FUND ADVISORS LP | $31.3M | 321,503 | 0.01% | 4q | -1.2%-$383.7K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $30.7M | 314,914 | 0.10% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $29.5M | 302,482 | 0.01% | 2q | +21.1%+$5.1M |
| Driehaus Capital Management LLC | $28.8M | 295,266 | 0.17% | 2q | -6.9%-$2.1M |
| First Turn Management, LLC | $27.9M | 285,771 | 2.98% | 2q | +29.4%+$6.3M |
| TANG CAPITAL MANAGEMENT LLC | $25.8M | 264,692 | 1.17% | 12q | HELD |
| Artisan Partners Limited Partnership | $25.2M | 258,269 | 0.04% | 2q | -32.4%-$12.1M |
| BANK OF AMERICA CORP /DE/ | $25.0M | 256,833 | 0.00% | 12q | +36.0%+$6.6M |
| Bank of New York Mellon Corp | $25.0M | 256,393 | 0.00% | 10q | +36.1%+$6.6M |
| RTW INVESTMENTS, LP | $24.2M | 248,063 | 0.21% | 2q | HELD |
| EMERALD ADVISERS, LLC | $24.2M | 247,805 | 0.57% | new | NEW |
| Pictet Asset Management Holding SA | $24.1M | 247,295 | 0.02% | 2q | +4922.2%+$23.6M |
| TD Asset Management Inc | $22.0M | 225,334 | 0.02% | 4q | +93.3%+$10.6M |
| EVENTIDE ASSET MANAGEMENT, LLC | $22.0M | 225,261 | 0.29% | 2q | HELD |
| LMR Partners LLP | $21.8M | 223,995 | 0.08% | 2q | +92.4%+$10.5M |
| Candriam S.C.A. | $19.9M | 204,214 | 0.09% | 6q | -4.4%-$906.5K |
| STEMPOINT CAPITAL LP | $19.6M | 200,851 | 3.37% | 4q | +17.5%+$2.9M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $19.2M incl. $16.2M options CALL+PUT | 30,237 | 0.00% | 7q | -62.2%-$31.6M |
| Qube Research & Technologies Ltd | $19.2M | 196,924 | 0.02% | 3q | +548.8%+$16.2M |
| SAMLYN CAPITAL, LLC | $19.1M | 196,326 | 0.31% | 2q | -54.5%-$22.9M |
| Nicholas Investment Partners, LP | $18.2M | 186,769 | 1.03% | 2q | +264.4%+$13.2M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $18.0M | 185,000 | 0.03% | 2q | +15.6%+$2.4M |
| Caption Management, LLC | $17.6M CALL+PUT | options only | 0.08% | 2q | OPTIONS |
| Ensign Peak Advisors, Inc | $17.0M | 174,187 | 0.03% | 5q | -14.8%-$2.9M |
| TimesSquare Capital Management, LLC | $16.2M | 166,357 | 0.24% | new | NEW |
| Atika Capital Management LLC | $16.1M | 165,000 | 1.06% | 3q | +28.1%+$3.5M |
| Artia Global Partners LP | $15.9M | 162,990 | 2.93% | 4q | HELD |
| Balyasny Asset Management L.P. | $15.8M | 162,005 | 0.02% | 2q | -65.8%-$30.4M |
| NEUBERGER BERMAN GROUP LLC | $15.4M | 157,574 | 0.01% | 3q | +166.7%+$9.6M |
| Alyeska Investment Group, L.P. | $14.7M | 150,592 | 0.04% | 2q | +188.2%+$9.6M |
| Russell Investments Group, Ltd. | $14.0M | 143,431 | 0.01% | 4q | +11.1%+$1.4M |
| Eagle Health Investments LP | $12.8M | 131,344 | 2.12% | new | NEW |
| EMERALD MUTUAL FUND ADVISERS TRUST | $12.8M | 131,018 | 0.45% | new | NEW |
| MARSHALL WACE, LLP | $12.5M | 128,743 | 0.01% | 4q | -62.3%-$20.8M |
| PFM Health Sciences, LP | $11.8M | 121,222 | 1.01% | 4q | -29.6%-$5.0M |
| Tri Locum Partners LP | $11.8M | 120,712 | 1.45% | 4q | -17.1%-$2.4M |
| Nuveen, LLC | $11.6M | 119,460 | 0.00% | 6q | -45.1%-$9.6M |
| ORBIMED ADVISORS LLC | $11.2M | 115,000 | 0.21% | new | NEW |
| Patient Square Capital LP | $10.5M | 108,000 | 1.63% | 4q | +15.0%+$1.4M |
| TWO SIGMA INVESTMENTS, LP | $10.5M | 107,455 | 0.01% | new | NEW |
| MORGAN STANLEY | $10.4M | 106,376 | 0.00% | 12q | +9.2%+$869.6K |
| SEVEN GRAND MANAGERS, LLC | $9.7M | 100,000 | 0.39% | 2q | HELD |
| FIRST TRUST ADVISORS LP | $9.2M | 94,152 | 0.01% | new | NEW |
| SEI INVESTMENTS CO | $9.0M | 92,280 | 0.01% | 4q | HELD |
| MILLENNIUM MANAGEMENT LLC | $9.0M | 91,838 | 0.00% | 5q | -64.9%-$16.6M |
| VICTORY CAPITAL MANAGEMENT INC | $8.6M | 88,315 | 0.00% | 3q | +463.9%+$7.1M |
| AMERICAN CENTURY COMPANIES INC | $8.6M | 87,860 | 0.00% | 10q | +11.1%+$854.3K |
| JANE STREET GROUP, LLC | $8.5M CALL+PUT | options only | 0.00% | 4q | OPTIONS |
| Rhenman & Partners Asset Management AB | $8.4M | 86,127 | 0.79% | 8q | +5.5%+$438.7K |
| Invesco Ltd. | $8.3M | 85,603 | 0.00% | 9q | -34.5%-$4.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.3M | 75,396 | 0.00% | 3q | +24.8%+$1.5M |
| Moody Aldrich Partners LLC | $7.3M | 74,552 | 1.31% | 6q | -9.2%-$738.6K |
| Swiss National Bank | $7.2M | 73,800 | 0.00% | 3q | +7.0%+$467.9K |
| DEUTSCHE BANK AG\ | $6.8M | 69,756 | 0.00% | 9q | +121.7%+$3.7M |
| MERCER GLOBAL ADVISORS INC /ADV | $6.4M | 65,683 | 0.01% | new | NEW |
| LPL Financial LLC | $6.4M | 65,295 | 0.00% | 2q | +59.9%+$2.4M |
| Seven Fleet Capital Management LP | $6.3M | 64,723 | 1.04% | 3q | +19.3%+$1.0M |
| SummitTX Capital, L.P. | $6.2M | 63,866 | 0.16% | 3q | -36.2%-$3.5M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $6.1M | 62,829 | 0.00% | 4q | -3.7%-$234.8K |
| NEW YORK STATE COMMON RETIREMENT FUND | $5.9M | 60,048 | 0.01% | 9q | +25.2%+$1.2M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-30 | 13G | Vanguard Capital Management | 5.1% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-07 | Garcia Marino | CEO AND PRESIDENT | Sold | 166,000 | $17.9M ×7 |
| 2026-07-09 | Savitz Ryan | EVP, CFO & CBO | Sold | 31,249 | $3.2M ×3 |
| 2026-09-01 | Randhawa Simrat | EVP, Head of R&D | Sold | 23,124 | $2.5M ×3 |
| 2026-06-17 | Veness Adam M | SVP, General Counsel and Sec. | Sold | 30,000 | $2.4M ×2 |
| 2026-06-01 | Randhawa Simrat | EVP, Head of R&D | Sold | 26,530 | $2.4M ×3 |
| 2026-09-17 | CARR EDWARD | CHIEF ACCOUNTING OFFICER | Sold | 20,000 | $2.0M ×5 |
| 2026-08-10 | Veness Adam M | SVP, General Counsel and Sec. | Sold | 16,167 | $1.8M |
| 2026-08-10 | McGeorge Anne | Director | Sold | 7,750 | $844.8K ×5 |
| 2026-08-07 | Veness Adam M | SVP, General Counsel and Sec. | Sold | 3,833 | $424.3K ×2 |
| 2026-08-19 | Read Simon | Director | Sold | 2,778 | $326.6K |
| 2026-08-10 | Read Simon | Director | Sold | 2,777 | $304.2K ×6 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 35 | $81.9M | 930,584 | 11 | 12 | 5 | 0.0% |
| Q2 2026 | 271 | $6.5B | 66,035,999 | 63 | 112 | 67 | 0.8% |
| Q1 2026 | 242 | $5.4B | 64,387,129 | 93 | 83 | 54 | 0.8% |
| Q4 2025 | 166 | $2.0B | 49,125,602 | 41 | 75 | 26 | 0.2% |
| Q3 2025 | 142 | $1.9B | 46,896,911 | 53 | 39 | 34 | 1.6% |
| Q2 2025 | 104 | $731.9M | 39,110,798 | 20 | 29 | 38 | 0.4% |
| Q1 2025 | 99 | $688.0M | 37,715,350 | 17 | 28 | 31 | 0.4% |
| Q4 2024 | 95 | $765.7M | 35,126,689 | 9 | 37 | 23 | 0.0% |
| Q3 2024 | 90 | $859.0M | 31,375,447 | 23 | 29 | 19 | 0.0% |
| Q2 2024 | 74 | $769.0M | 29,712,762 | 27 | 18 | 17 | 0.0% |
| Q1 2024 | 75 | $784.0M | 26,133,210 | 38 | 24 | 8 | 0.0% |
| Q4 2023 | 39 | $109.9M | 10,619,651 | 8 | 11 | 5 | 0.0% |
| Q3 2023 | 30 | $136.3M | 10,072,640 | 30 | 0 | 0 | 0.0% |