| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Third Rock Ventures V, L.P. | 20% | $81,198,952 | 7,135,233 | Third Rock Ventures V, L.P. | 31 Dec 2024 | |||
| Cormorant Asset Management, LP | 6.7% | $94,817,874 | 3,192,521 | Cormorant Asset Management, LP | 30 Sep 2025 | |||
| BlackRock, Inc. | 5% | $72,741,637 | 2,397,549 | BlackRock, Inc. | 31 Dec 2025 | |||
| Sofinnova Venture Partners XI, L.P. | 4.2% | $29,155,258 | 1,947,579 | Dr. James I. Healy ("Healy") | 11 Sep 2025 | |||
| JOHNSON & JOHNSON | 4.9% | $53,000,690 | 1,784,517 | JOHNSON & JOHNSON | 30 Sep 2025 |
As of 31 Dec 2025, 92 institutional investors reported holding 28,333,513 shares of Rapport Therapeutics, Inc. - Common Stock (RAPP). This represents 59% of the company’s total 47,664,990 outstanding shares.
The largest institutional shareholders of Rapport Therapeutics, Inc. - Common Stock (RAPP) together control 58% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| TRV GP V, LLC | 15% | 7,135,233 | 0% | 50% | $216,482,969 |
| Capital International Investors | 7.1% | 3,402,529 | 0% | 0.02% | $103,232,730 |
| GOLDMAN SACHS GROUP INC | 6.3% | 3,001,879 | +24% | 0.01% | $91,077,009 |
| BlackRock, Inc. | 5.1% | 2,431,862 | +55% | 0% | $73,782,693 |
| Sofinnova Investments, Inc. | 4% | 1,904,408 | -2.2% | 2.5% | $57,779,739 |
| VANGUARD GROUP INC | 3.8% | 1,817,757 | +12% | 0% | $55,150,747 |
| JOHNSON & JOHNSON | 3.7% | 1,784,517 | 0% | 9.8% | $54,142,246 |
| TRV GP VI, LLC | 2% | 969,218 | 0% | 20% | $29,406,074 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 2% | 952,371 | +6.7% | 0.01% | $28,894,936 |
| STATE STREET CORP | 1.5% | 714,821 | +92% | 0% | $21,687,669 |
| Siren, L.L.C. | 1.5% | 708,469 | -33% | 0.64% | $21,494,949 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.5% | 694,734 | +30% | 0% | $21,081,433 |
| PRUDENTIAL FINANCIAL INC | 0.53% | 254,967 | 0.01% | $7,735,699 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.51% | 244,391 | +21% | 0% | $7,414,823 |
| UBS Group AG | 0.47% | 226,360 | -59% | 0% | $6,867,763 |
| MORGAN STANLEY | 0.44% | 210,331 | -23% | 0% | $6,381,444 |
| Ensign Peak Advisors, Inc | 0.41% | 194,200 | 0% | 0.01% | $5,892,028 |
| KENNEDY CAPITAL MANAGEMENT LLC | 0.37% | 178,737 | 0.11% | $5,422,881 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.25% | 118,814 | +237% | 0.01% | $3,604,817 |
| TD Asset Management Inc | 0.24% | 115,190 | -16% | 0% | $3,494,865 |
| Swedbank AB | 0.24% | 113,200 | 0% | $3,434,488 | |
| Informed Momentum Co LLC | 0.18% | 85,555 | -2% | 0.29% | $2,595,739 |
| DIMENSIONAL FUND ADVISORS LP | 0.18% | 83,487 | +637% | 0% | $2,532,996 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 0.17% | 78,659 | -4.5% | 0% | $2,407,086 |
| Bank of New York Mellon Corp | 0.16% | 74,081 | +56% | 0% | $2,247,618 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 28,333,513 | $859,635,746 | +$59,830,423 | $30.34 | 92 |
| 2025 Q3 | 49,276,697 | $1,463,478,389 | +$335,895,383 | $29.70 | 123 |
| 2025 Q2 | 38,494,803 | $437,875,302 | +$4,896,059 | $11.37 | 81 |
| 2025 Q1 | 38,102,588 | $382,320,591 | +$11,241,443 | $10.03 | 77 |
| 2024 Q4 | 36,577,539 | $648,890,836 | -$29,671 | $17.74 | 69 |
| 2024 Q3 | 28,444,042 | $581,877,476 | +$37,552,009 | $20.48 | 55 |
| 2024 Q2 | 25,558,517 | $593,435,106 | +$593,435,106 | $23.26 | 35 |