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Equibles

RAPP

Rapport Therapeutics, Inc.

Company with tickers: RAPP

CIK
2012593
CUSIP
75383L102
Shares Outstanding
47,826,929
13F Activity (30d)
114 filings 109 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 147
Total Value: $1,643,098,231
Total Shares: 52,511,931
Showing 1–100 of 149 holdings by value · page 1 of 2

Institutional Ownership Trend

8 quarters

Holder Concentration

Across 147 13F filers · Δ vs Dec 31, 2025
Top Holder
13.7%
Jun 2024 → Mar 2026 · range 13.7% – 19.5%
−0.3 pts
Top 5
45.9%
Jun 2024 → Mar 2026 · range 45.9% – 65.5%
−1.9 pts
Top 10
66.4%
Jun 2024 → Mar 2026 · range 66.4% – 91.7%
−2.7 pts
HHI
624
Jun 2024 → Mar 2026 · range 624 – 1,083
Broadly held −35

Quarterly Activity

vs Dec 31, 2025
New
30
Increased
53
Decreased
34
Sold Out
28
Unchanged
30
Holder count: +2
Institutional value: +5.9%
Shares held: +2.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large Polar Capital Holdings Plc +637,733 1,642,461
Mid Vestal Point Capital, LP +326,229 1,436,229
Small Sio Capital Management, LLC +181,544 366,809
Mega DIMENSIONAL FUND ADVISORS LP +141,011 224,498
Mega MILLENNIUM MANAGEMENT LLC +117,727 319,552

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega Capital International Investors −304,556 3,097,973
Large PRUDENTIAL FINANCIAL INC −140,152 114,815
Large RENAISSANCE TECHNOLOGIES LLC −109,114 9,700
Mega Invesco Ltd. −95,363 171,757
Mega UBS Group AG −74,602 151,758

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,325,082 $41,461,815
Mega Capital World Investors 536,607 $16,790,433
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 320,909 $10,041,242
Mega VANGUARD FIDUCIARY TRUST CO 189,253 $5,921,726
Large Candriam S.C.A. 185,925 $5,817,593

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,817,757 $55,150,745
Small Informed Momentum Co LLC 85,555 $2,595,738
Mid Eversept Partners, LP 59,233 $1,797,129
Large ExodusPoint Capital Management, LP 34,651 $1,051,311
Mega JANE STREET GROUP, LLC 26,000 $788,840
Filter: New 30 Increased 53 Reduced 34 Sold out 28 Unchanged 30
Showing 100 of 149
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega FMR LLC $224,316,101 13.65% 7,168,939
Small TRV GP V, LLC $223,261,440 13.59% 7,135,233
Small ARCH Venture Management, LLC $116,672,212 7.10% 3,728,738
Mega Capital International Investors $96,935,575 5.90% 3,097,973
Mid Cormorant Asset Management, LP $92,540,832 5.63% 2,957,521
Mega GOLDMAN SACHS GROUP INC $92,063,033 5.60% 2,942,251
Mega BlackRock, Inc. $78,411,328 4.77% 2,505,955
Mid Sofinnova Investments, Inc. $59,588,926 3.63% 1,904,408
Small JOHNSON & JOHNSON $55,837,536 3.40% 1,784,517
Large Polar Capital Holdings Plc $51,392,604 3.13% 1,642,461
Large BAKER BROS. ADVISORS LP $48,408,446 2.95% 1,547,090
Mid Vestal Point Capital, LP $44,939,605 2.74% 1,436,229
Mega VANGUARD CAPITAL MANAGEMENT LLC $41,461,815 2.52% 1,325,082
Small TRV GP VI, LLC $30,326,831 1.85% 969,218
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $28,751,316 1.75% 918,866
Mega PRICE T ROWE ASSOCIATES INC /MD/ $27,111,407 1.65% 866,456
Mega STATE STREET CORP $23,766,382 1.45% 759,552
Mega ALLIANCEBERNSTEIN L.P. $22,774,207 1.39% 727,843
Mega GEODE CAPITAL MANAGEMENT, LLC $22,579,551 1.37% 721,622
Mid PERCEPTIVE ADVISORS LLC $21,087,050 1.28% 673,923
Mid Siren, L.L.C. $20,071,565 1.22% 641,469
Mega T. Rowe Price Investment Management, Inc. $19,418,574 1.18% 620,600
Mega Capital World Investors $16,790,433 1.02% 536,607
Small Sio Capital Management, LLC $11,477,453 0.70% 366,809
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $10,041,242 0.61% 320,909
Mega MILLENNIUM MANAGEMENT LLC $9,998,782 0.61% 319,552
Mid KENNEDY CAPITAL MANAGEMENT LLC $8,055,015 0.49% 257,431
Mid Burkehill Global Management, LP $7,822,500 0.48% 250,000
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $7,507,002 0.46% 239,917
Mega NORTHERN TRUST CORP Bank $7,446,768 0.45% 237,992
Mega DIMENSIONAL FUND ADVISORS LP $7,024,541 0.43% 224,498
Large Ensign Peak Advisors, Inc $6,076,518 0.37% 194,200
Mega VANGUARD FIDUCIARY TRUST CO Bank $5,921,726 0.36% 189,253
Large Candriam S.C.A. $5,817,593 0.35% 185,925
Mega D. E. Shaw & Co., Inc. $5,489,799 0.33% 175,449
Mega Invesco Ltd. $5,374,274 0.33% 171,757
Mega MORGAN STANLEY $5,192,697 0.32% 165,954
Mega UBS Group AG $4,748,507 0.29% 151,758
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $4,693,500 0.29% 150,000
Small Artia Global Partners LP $4,333,915 0.26% 138,508
Large Freestone Grove Partners LP $3,998,330 0.24% 127,783
Large PRUDENTIAL FINANCIAL INC $3,592,561 0.22% 114,815
Large Swedbank AB Bank $3,542,028 0.22% 113,200
Mega BANK OF AMERICA CORP /DE/ Bank $3,467,745 0.21% 110,826
Mega TD Asset Management Inc $3,100,150 0.19% 99,078
Mega CITIGROUP INC $2,465,619 0.15% 78,799
Mega WELLINGTON MANAGEMENT GROUP LLP $2,447,846 0.15% 78,231
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $2,357,983 0.14% 75,359
Small DAFNA Capital Management LLC $2,346,750 0.14% 75,000
Large VOYA INVESTMENT MANAGEMENT LLC $2,282,542 0.14% 72,948
Mega Bank of New York Mellon Corp Bank $2,262,860 0.14% 72,319
Mega Nuveen, LLC $2,237,485 0.14% 71,508
Mega Swiss National Bank Bank $1,767,885 0.11% 56,500
Mega AMERICAN CENTURY COMPANIES INC $1,761,376 0.11% 56,292
Mid XTX Topco Ltd $1,498,884 0.09% 47,903
Large ALPS ADVISORS INC $1,217,400 0.07% 38,907
Mega BNP PARIBAS ARBITRAGE, SA $1,124,938 0.07% 35,952
Mid Y-Intercept (Hong Kong) Ltd $1,120,964 0.07% 35,825
Mega RHUMBLINE ADVISERS $1,080,537 0.07% 34,533
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,045,899 0.06% 33,426
Large Russell Investments Group, Ltd. $1,030,001 0.06% 32,918
Large SEI INVESTMENTS CO $964,326 0.06% 30,819
Mega TWO SIGMA INVESTMENTS, LP $879,342 0.05% 28,103
Mega AQR CAPITAL MANAGEMENT LLC $798,204 0.05% 25,510
Small SECTORAL ASSET MANAGEMENT INC $795,423 0.05% 25,421
Mega DEUTSCHE BANK AG\ Bank $756,248 0.05% 24,169
Large STATE OF WISCONSIN INVESTMENT BOARD $748,269 0.05% 23,914
Mid Susquehanna Portfolio Strategies, LLC $712,911 0.04% 22,784
Large Trexquant Investment LP $656,589 0.04% 20,984
Mega VANGUARD ASSET MANAGEMENT, Ltd $579,866 0.04% 18,532
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $578,865 0.04% 18,500
Mega Vanguard Global Advisers, LLC $539,439 0.03% 17,240
Mega Legal & General Group Plc $536,747 0.03% 17,154
Large MetLife Investment Management, LLC $500,514 0.03% 15,996
Mega JPMORGAN CHASE & CO $495,820 0.03% 15,846
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $490,376 0.03% 15,672
Large Creative Planning $485,589 0.03% 15,519
Small VARCOV Co. $484,150 0.03% 15,473
Small Optimize Financial Inc $458,586 0.03% 14,656
Mega AMERIPRISE FINANCIAL INC $456,364 0.03% 14,585
Micro PSP Research LLC $438,060 0.03% 14,000
Mega JANUS HENDERSON GROUP PLC $431,802 0.03% 13,800
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $426,107 0.03% 13,618
Large Allianz Asset Management GmbH $413,028 0.03% 13,200
Mid China Universal Asset Management Co., Ltd. $377,294 0.02% 12,058
Large ACADIAN ASSET MANAGEMENT LLC $368,877 0.02% 11,789
Large Walleye Capital LLC $348,820 0.02% 11,148
Mega WELLS FARGO & COMPANY/MN $347,819 0.02% 11,116
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $344,190 0.02% 11,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $328,545 0.02% 10,500
Micro CATALYST PRIVATE WEALTH, LLC $312,900 0.02% 10,000
Mid Soleus Capital Management, L.P. $312,900 0.02% 10,000
Mid GSA CAPITAL PARTNERS LLP $310,647 0.02% 9,928
Large State of New Jersey Common Pension Fund D Pension $305,797 0.02% 9,773
Large RENAISSANCE TECHNOLOGIES LLC $303,513 0.02% 9,700
Mega BARCLAYS PLC $300,727 0.02% 9,611
Small CLEAR WAVE WEALTH MANAGEMENT LLC $297,255 0.02% 9,500
Large STIFEL FINANCIAL CORP $282,329 0.02% 9,023
Small Virtus Investment Advisers, LLC $281,829 0.02% 9,007
Large ARIZONA STATE RETIREMENT SYSTEM Pension $245,751 0.01% 7,854

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