RAPPORT THERAPEUTICS INC (RAPP)
Institutional ownership reported to the SEC as of Q2 2026, across 10 quarters.
Institutions report 51,271,114 shares against 47,978,286 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 | $298.9M | 7,172,894 | 0.01% | 9q | HELD |
| TRV GP V, LLC | $261.7M | 6,280,525 | 52.53% | 7q | -12.0%-$35.6M |
| ARCH Venture Management, LLC | $155.4M | 3,728,738 | 14.12% | 9q | HELD |
| Capital International Investors | $121.8M | 2,921,958 | 0.03% | 9q | -5.7%-$7.3M |
| GOLDMAN SACHS GROUP INC | $121.3M | 2,910,449 | 0.01% | 8q | -1.1%-$1.3M |
| BlackRock, Inc. | $112.5M | 2,699,786 | 0.00% | 8q | +7.7%+$8.1M |
| Cormorant Asset Management, LP | $110.7M | 2,657,521 | 5.67% | 9q | -10.1%-$12.5M |
| Sofinnova Investments, Inc. | $79.4M | 1,904,408 | 4.10% | 9q | HELD |
| JOHNSON & JOHNSON | $74.4M | 1,784,517 | 9.31% | 9q | HELD |
| Polar Capital Holdings Plc | $67.0M | 1,608,514 | 0.16% | 4q | -2.1%-$1.4M |
| BAKER BROS. ADVISORS LP | $64.5M | 1,547,090 | 0.32% | 5q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $56.1M | 1,346,512 | 0.00% | 2q | +1.6%+$893.0K |
| TRV GP VI, LLC | $40.4M | 969,218 | 17.39% | 7q | HELD |
| STATE STREET CORP | $34.1M | 818,712 | 0.00% | 8q | +7.8%+$2.5M |
| GEODE CAPITAL MANAGEMENT, LLC | $33.1M | 793,453 | 0.00% | 8q | +10.0%+$3.0M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $32.8M | 787,446 | 0.00% | 9q | -9.1%-$3.3M |
| PERCEPTIVE ADVISORS LLC | $32.2M | 773,342 | 0.48% | 4q | +14.8%+$4.1M |
| Vestal Point Capital, LP | $30.4M | 730,000 | 0.71% | 4q | -49.2%-$29.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $26.8M | 644,082 | 0.00% | 6q | -29.9%-$11.5M |
| Siren, L.L.C. | $26.7M | 641,469 | 0.54% | 8q | HELD |
| Capital World Investors | $23.0M | 551,657 | 0.00% | 2q | +2.8%+$627.1K |
| ALLIANCEBERNSTEIN L.P. | $21.7M | 693,384 | 0.01% | 9q | -4.7%-$1.1M |
| T. Rowe Price Investment Management, Inc. | $16.4M | 393,200 | 0.01% | 9q | -36.6%-$9.5M |
| DIMENSIONAL FUND ADVISORS LP | $15.1M | 362,114 | 0.00% | 4q | +61.3%+$5.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $15.0M | 359,944 | 0.00% | 2q | +12.2%+$1.6M |
| Candriam S.C.A. | $14.5M | 347,650 | 0.07% | 2q | +87.0%+$6.7M |
| Sio Capital Management, LLC | $12.8M | 307,657 | 2.12% | 4q | -16.1%-$2.5M |
| MORGAN STANLEY | $12.4M | 297,612 | 0.00% | 8q | +79.3%+$5.5M |
| NORTHERN TRUST CORP | $11.6M | 277,305 | 0.00% | 8q | +16.5%+$1.6M |
| KENNEDY CAPITAL MANAGEMENT LLC | $10.5M | 250,795 | 0.19% | 3q | -2.6%-$276.5K |
| Burkehill Global Management, LP | $10.4M | 250,000 | 0.38% | 4q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $10.3M | 246,815 | 0.00% | 8q | +2.9%+$287.4K |
| ALGERT GLOBAL LLC | $9.3M | 223,822 | 0.11% | new | NEW |
| Invesco Ltd. | $9.0M | 215,236 | 0.00% | 4q | +25.3%+$1.8M |
| D. E. Shaw & Co., Inc. | $9.0M | 214,831 | 0.00% | 3q | +22.4%+$1.6M |
| VANGUARD FIDUCIARY TRUST CO | $8.7M | 208,333 | 0.00% | 2q | +10.1%+$795.1K |
| Ensign Peak Advisors, Inc | $6.9M | 165,546 | 0.01% | 6q | -14.8%-$1.2M |
| MILLENNIUM MANAGEMENT LLC | $6.5M | 154,908 | 0.00% | 4q | -51.5%-$6.9M |
| UBS Group AG | $6.3M | 151,174 | 0.00% | 9q | HELD |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $6.3M | 150,000 | 0.01% | 4q | HELD |
| Artia Global Partners LP | $5.8M | 138,508 | 1.07% | 4q | HELD |
| Swedbank AB | $4.9M | 117,400 | 0.00% | 3q | +3.7%+$175.0K |
| Nuveen, LLC | $4.3M | 103,361 | 0.00% | 6q | +44.5%+$1.3M |
| Walleye Capital LLC | $4.3M | 102,163 | 0.02% | 2q | +816.4%+$3.8M |
| Woodline Partners LP | $4.1M | 97,537 | 0.01% | new | NEW |
| TD Asset Management Inc | $3.8M | 91,878 | 0.00% | 9q | -7.3%-$300.0K |
| WELLINGTON MANAGEMENT GROUP LLP | $3.6M | 86,988 | 0.00% | 4q | +11.2%+$364.9K |
| PRUDENTIAL FINANCIAL INC | $3.6M | 86,885 | 0.00% | 3q | -24.3%-$1.2M |
| CITADEL ADVISORS LLC | $3.4M | 82,442 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $3.4M | 82,222 | 0.00% | 8q | +13.7%+$412.7K |
| ORBIMED ADVISORS LLC | $3.2M | 76,616 | 0.06% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $3.2M | 76,076 | 0.00% | 8q | -31.4%-$1.4M |
| DAFNA Capital Management LLC | $3.1M | 75,000 | 0.60% | 4q | HELD |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $2.9M | 69,682 | 0.00% | 9q | -7.5%-$236.6K |
| STEMPOINT CAPITAL LP | $2.8M | 66,582 | 0.48% | new | NEW |
| AMERICAN CENTURY COMPANIES INC | $2.7M | 65,764 | 0.00% | 4q | +16.8%+$394.7K |
| XTX Topco Ltd | $2.6M | 61,441 | 0.03% | 3q | +28.3%+$564.1K |
| JANE STREET GROUP, LLC | $2.5M incl. $208.3K options PUT | 55,705 | 0.00% | new | NEW |
| VOYA INVESTMENT MANAGEMENT LLC | $2.4M | 58,537 | 0.00% | 4q | -19.8%-$600.5K |
| Allspring Global Investments Holdings, LLC | $2.4M | 57,468 | 0.00% | 2q | +736.8%+$2.1M |
| Russell Investments Group, Ltd. | $2.3M | 55,458 | 0.00% | 4q | +68.5%+$939.2K |
| Swiss National Bank | $2.3M | 55,200 | 0.00% | 3q | -2.3%-$54.2K |
| Trexquant Investment LP | $2.2M | 53,937 | 0.01% | 4q | +157.0%+$1.4M |
| ALPS ADVISORS INC | $2.0M | 48,243 | 0.01% | 7q | +24.0%+$389.0K |
| Susquehanna Portfolio Strategies, LLC | $1.7M | 39,978 | 0.03% | 4q | +75.5%+$716.5K |
| RHUMBLINE ADVISERS | $1.6M | 37,198 | 0.00% | 8q | +7.7%+$111.0K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $1.4M | 32,499 | 0.00% | 8q | -2.8%-$38.6K |
| DEUTSCHE BANK AG\ | $1.3M | 32,212 | 0.00% | 7q | +33.3%+$335.2K |
| WELLS FARGO & COMPANY/MN | $1.3M | 32,171 | 0.00% | 8q | +189.4%+$877.4K |
| Integrated Quantitative Investments LLC | $1.3M | 30,386 | 0.21% | new | NEW |
| AQR CAPITAL MANAGEMENT LLC | $1.1M | 26,454 | 0.00% | 5q | +3.7%+$39.3K |
| TWO SIGMA INVESTMENTS, LP | $1.0M | 24,470 | 0.00% | 6q | -12.9%-$151.4K |
| CITIGROUP INC | $1.0M | 24,373 | 0.00% | 8q | -69.1%-$2.3M |
| Ellsworth Advisors, LLC | $979.8K | 24,539 | 0.16% | new | NEW |
| Creative Planning | $955.0K | 22,918 | 0.00% | 5q | +47.7%+$308.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $948.2K incl. $604.2K options CALL+PUT | 8,255 | 0.00% | 6q | -47.3%-$851.9K |
| Legal & General Group Plc | $939.9K | 22,555 | 0.00% | 8q | +31.5%+$225.1K |
| STATE OF WISCONSIN INVESTMENT BOARD | $920.9K | 22,101 | 0.00% | 3q | -7.6%-$75.5K |
| BNP PARIBAS FINANCIAL MARKETS | $919.0K | 22,055 | 0.00% | 8q | -38.7%-$579.1K |
| Engineers Gate Manager LP | $888.2K | 21,314 | 0.01% | new | NEW |
| Legato Capital Management LLC | $880.2K | 21,124 | 0.07% | new | NEW |
| Y-Intercept (Hong Kong) Ltd | $799.6K | 19,189 | 0.02% | 2q | -46.4%-$693.2K |
| VANGUARD ASSET MANAGEMENT, Ltd | $772.2K | 18,532 | 0.00% | 2q | HELD |
| MetLife Investment Management, LLC | $750.4K | 18,009 | 0.00% | 8q | +12.6%+$83.9K |
| Vanguard Global Advisers, LLC | $718.4K | 17,240 | 0.00% | 2q | HELD |
| SEI INVESTMENTS CO | $679.0K | 16,294 | 0.00% | 4q | -47.1%-$605.3K |
| JPMORGAN CHASE & CO | $669.0K | 16,564 | 0.00% | 8q | +4.5%+$29.0K |
| BARCLAYS PLC | $624.8K | 14,994 | 0.00% | 9q | +56.0%+$224.3K |
| AMERIPRISE FINANCIAL INC | $612.4K | 14,696 | 0.00% | 4q | +0.8%+$4.6K |
| OPTIMIZE FINANCIAL INC. | $608.6K | 14,606 | 0.22% | 2q | HELD |
| Sound Capital Solutions LLC | $608.6K | 14,606 | 0.14% | new | FIRST |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $594.0K | 14,256 | 0.00% | 2q | +2678.9%+$572.7K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $587.9K | 14,108 | 0.00% | 8q | +3.6%+$20.4K |
| PSP Research LLC | $583.4K | 14,000 | 0.31% | 3q | HELD |
| Jupiter Topco LLC | $574.4K | 13,800 | 0.00% | new | FIRST |
| VARCOV Co. | $537.3K | 12,895 | 0.20% | 2q | -16.7%-$107.4K |
| China Universal Asset Management Co., Ltd. | $450.5K | 10,812 | 0.03% | 7q | -10.3%-$51.9K |
| Allianz Asset Management GmbH | $445.9K | 10,700 | 0.00% | 3q | -18.9%-$104.2K |
| NEW YORK STATE COMMON RETIREMENT FUND | $429.2K | 10,300 | 0.00% | 7q | -6.4%-$29.2K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $424.0K | 10,176 | 0.00% | 2q | +53.9%+$148.5K |
Showing the largest 100 of 160 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-10-30 | 2026-10-28 | Material agreement entered | filing |
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 |
|---|---|---|---|---|---|
| 2026-08-25 | Yeleswaram Krishnaswamy | Chief Development Officer | Sold | 37,000 | $1.9M ×2 |
| 2026-08-11 | Ceesay Abraham | Chief Executive Officer | Sold | 28,958 | $1.4M ×3 |
| 2026-08-10 | Ceesay Abraham | Chief Executive Officer | Sold | 22,541 | $1.0M ×2 |
| 2026-10-22 | PAUL STEVEN M | Director | Bought | 35,714 | $974.3K |
| 2026-08-25 | Ceesay Abraham | Chief Executive Officer | Sold | 18,921 | $938.0K |
| 2026-08-24 | Yeleswaram Krishnaswamy | Chief Development Officer | Sold | 13,160 | $658.0K |
| 2026-06-30 | Gault Cheryl | Chief Operating Officer | Sold | 10,000 | $415.8K ×4 |
| 2026-09-08 | Ceesay Abraham | Chief Executive Officer | Sold | 8,210 | $374.5K ×2 |
| 2026-09-30 | Gault Cheryl | Chief Operating Officer | Sold | 10,000 | $331.9K ×2 |
| 2026-07-14 | Ceesay Abraham | Chief Executive Officer | Sold | 8,210 | $328.4K ×2 |
| 2026-06-29 | Ceesay Abraham | Chief Executive Officer | Sold | 8,220 | $327.4K ×2 |
| 2026-10-22 | MARAGANORE JOHN | Director | Bought | 9,411 | $248.9K ×2 |
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | Third Rock Ventures V, L.P. | 10% owner | Sold | 133,618 | $5.4M |
| 2026-05-26 | Third Rock Ventures V, L.P. | 10% owner | Sold | 18,572 | $743.8K |
| 2026-05-08 | Third Rock Ventures V, L.P. | 10% owner | Sold | 5,018 | $202.3K |
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 | 28 | $67.2M | 2,001,020 | 8 | 8 | 1 | 0.0% |
| Q2 2026 | 160 | $2.1B | 51,271,114 | 26 | 55 | 46 | 0.0% |
| Q1 2026 | 147 | $1.6B | 52,482,926 | 23 | 51 | 35 | 0.1% |
| Q4 2025 | 146 | $1.6B | 51,319,040 | 37 | 51 | 31 | 0.1% |
| Q3 2025 | 124 | $1.5B | 49,286,721 | 54 | 36 | 19 | 1.0% |
| Q2 2025 | 83 | $437.9M | 38,496,415 | 15 | 28 | 16 | 0.0% |
| Q1 2025 | 77 | $382.4M | 38,102,588 | 16 | 33 | 9 | 0.0% |
| Q4 2024 | 70 | $648.9M | 36,577,539 | 15 | 16 | 13 | 0.0% |
| Q3 2024 | 55 | $582.0M | 28,448,075 | 28 | 10 | 5 | 0.0% |
| Q2 2024 | 35 | $593.4M | 25,558,517 | 35 | 0 | 0 | 0.0% |
