RAPPORT THERAPEUTICS INC (RAPP) Top Institutional Shareholders
RAPPORT THERAPEUTICS INC (RAPP) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $1.59B in RAPP holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of RAPP tracked by InsiderSet, reporting ownership valued at approximately $224.32M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $264.32M, representing an estimated gain of +17.83% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 68% of the total disclosed RAPP value among the investors covered in this analysis. Major shareholders include Fmr Llc, Trv Gp V, Llc, Arch Venture Management, Llc, and several other long-term asset managers with concentrated positions in RAPPORT THERAPEUTICS INC (RAPP).
This page ranks the largest institutional RAPP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
144
Total Reported Value
$1.59B
Largest Holder
Fmr Llc
Largest Position
$224.32M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
169
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.01% | 7,168,939 | $224,316,101 | $264,318,781 | +$40,002,680 | +17.83% | |
| Trv Gp V, Llc | 55.68% | 7,135,233 | $223,261,441 | $263,076,041 | +$39,814,600 | +17.83% | |
| Arch Venture Management, Llc | 17.23% | 3,728,738 | $116,672,212 | $137,478,570 | +$20,806,358 | +17.83% | |
| Capital International Investors | 0.02% | 3,097,973 | $96,935,575 | $114,222,265 | +$17,286,690 | +17.83% | |
| Cormorant Asset Management, Lp | 4.67% | 2,957,521 | $92,540,832 | $109,043,799 | +$16,502,967 | +17.83% | |
| Goldman Sachs Group Inc | 0.01% | 2,942,251 | $92,063,034 | $108,480,794 | +$16,417,760 | +17.83% | |
| Blackrock, Inc. | 0.00% | 2,505,955 | $78,411,332 | $92,394,561 | +$13,983,229 | +17.83% | |
| Sofinnova Investments, Inc. | 2.99% | 1,904,408 | $59,588,926 | $70,215,523 | +$10,626,597 | +17.83% | |
| Johnson & Johnson | 8.56% | 1,784,517 | $55,837,537 | $65,795,142 | +$9,957,605 | +17.83% | |
| Polar Capital Holdings Plc | 0.22% | 1,642,461 | $51,392,605 | $60,557,537 | +$9,164,932 | +17.83% | |
| Baker Bros. Advisors Lp | 0.28% | 1,547,090 | $48,408,446 | $57,041,208 | +$8,632,762 | +17.83% | |
| Vestal Point Capital, Lp | 1.26% | 1,436,229 | $44,939,605 | $52,953,763 | +$8,014,158 | +17.83% | |
| Vanguard Capital Management Llc | 0.00% | 1,325,082 | $41,461,816 | $48,855,773 | +$7,393,957 | +17.83% | |
| Trv Gp Vi, Llc | 22.37% | 969,218 | $30,326,831 | $35,735,068 | +$5,408,237 | +17.83% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 918,866 | $28,751,317 | $33,878,589 | +$5,127,272 | +17.83% | |
| State Street Corp | 0.00% | 759,552 | $23,766,382 | $28,004,682 | +$4,238,300 | +17.83% | |
| Geode Capital Management, Llc | 0.00% | 721,622 | $22,583,176 | $26,606,203 | +$4,023,027 | +17.81% | |
| Alliancebernstein L.P. | 0.01% | 727,843 | $22,082,757 | $26,835,571 | +$4,752,814 | +21.52% | |
| Perceptive Advisors Llc | 0.42% | 673,923 | $21,087,051 | $24,847,541 | +$3,760,490 | +17.83% | |
| Siren, L.L.C. | 0.56% | 641,469 | $20,071,565 | $23,650,962 | +$3,579,397 | +17.83% | |
| Capital World Investors | 0.00% | 536,607 | $16,790,433 | $19,784,700 | +$2,994,267 | +17.83% | |
| Sio Capital Management, Llc | 1.65% | 366,809 | $11,477,454 | $13,524,248 | +$2,046,794 | +17.83% | |
| Vanguard Portfolio Management Llc | 0.00% | 320,909 | $10,041,243 | $11,831,915 | +$1,790,672 | +17.83% | |
| Millennium Management Llc | 0.01% | 319,552 | $9,998,782 | $11,781,882 | +$1,783,100 | +17.83% | |
| Kennedy Capital Management Llc | 0.17% | 257,431 | $8,055,016 | $9,491,481 | +$1,436,465 | +17.83% | |
| Burkehill Global Management, Lp | 0.39% | 250,000 | $7,822,500 | $9,217,500 | +$1,395,000 | +17.83% | |
| Charles Schwab Investment Management Inc | 0.00% | 239,917 | $7,507,003 | $8,845,740 | +$1,338,737 | +17.83% | |
| Northern Trust Corp | 0.00% | 237,992 | $7,446,769 | $8,774,765 | +$1,327,996 | +17.83% | |
| Dimensional Fund Advisors Lp | 0.00% | 224,498 | $7,024,543 | $8,277,241 | +$1,252,698 | +17.83% | |
| Ensign Peak Advisors, Inc | 0.01% | 194,200 | $6,076,518 | $7,160,154 | +$1,083,636 | +17.83% | |
| Vanguard Fiduciary Trust Co | 0.00% | 189,253 | $5,921,726 | $6,977,758 | +$1,056,032 | +17.83% | |
| Candriam S.C.A. | 0.03% | 185,925 | $5,817,593 | $6,855,055 | +$1,037,462 | +17.83% | |
| D. E. Shaw & Co., Inc. | 0.00% | 175,449 | $5,489,799 | $6,468,805 | +$979,006 | +17.83% | |
| Invesco Ltd. | 0.00% | 171,757 | $5,374,275 | $6,332,681 | +$958,406 | +17.83% | |
| Morgan Stanley | 0.00% | 165,954 | $5,192,702 | $6,118,724 | +$926,022 | +17.83% | |
| Ubs Group Ag | 0.00% | 151,758 | $4,748,508 | $5,595,317 | +$846,809 | +17.83% | |
| Adage Capital Partners Gp, L.L.C. | 0.01% | 150,000 | $4,693,500 | $5,530,500 | +$837,000 | +17.83% | |
| Artia Global Partners Lp | 0.98% | 138,508 | $4,333,915 | $5,106,790 | +$772,875 | +17.83% | |
| Freestone Grove Partners Lp | 0.03% | 127,783 | $3,998,330 | $4,711,359 | +$713,029 | +17.83% | |
| Prudential Financial Inc | 0.00% | 114,815 | $3,592,561 | $4,233,229 | +$640,668 | +17.83% | |
| Swedbank Ab | 0.00% | 113,200 | $3,542,028 | $4,173,684 | +$631,656 | +17.83% | |
| Bank Of America Corp | 0.00% | 110,826 | $3,467,746 | $4,086,155 | +$618,409 | +17.83% | |
| Td Asset Management Inc | 0.00% | 99,078 | $3,100,151 | $3,653,006 | +$552,855 | +17.83% | |
| Citigroup Inc | 0.00% | 78,799 | $2,465,621 | $2,905,319 | +$439,698 | +17.83% | |
| Wellington Management Group Llp | 0.00% | 78,231 | $2,447,849 | $2,884,377 | +$436,528 | +17.83% | |
| Manufacturers Life Insurance Company, The | 0.00% | 75,359 | $2,357,983 | $2,778,486 | +$420,503 | +17.83% | |
| Dafna Capital Management Llc | 0.53% | 75,000 | $2,346,750 | $2,765,250 | +$418,500 | +17.83% | |
| Voya Investment Management Llc | 0.00% | 72,948 | $2,282,543 | $2,689,593 | +$407,050 | +17.83% | |
| Bank Of New York Mellon Corp | 0.00% | 72,319 | $2,262,861 | $2,666,402 | +$403,541 | +17.83% | |
| Nuveen, Llc | 0.00% | 71,508 | $2,237,485 | $2,636,500 | +$399,015 | +17.83% |
Frequently asked questions about RAPP
Who owns the most RAPP stock?
The largest holders of RAPP are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for RAPPORT THERAPEUTICS INC (RAPP).
Is RAPP widely held by superinvestors?
Many widely followed stocks like RAPP appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RAPP is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.