Companies / Rapport Therapeutics, Inc.
Rapport Therapeutics, Inc.
Nasdaq: RAPPCIK 2012593BOSTON, MA
Financials
Ownership
48.0M shares outstanding · as of Aug 3, 2026
Ownership
| Insiders | 1.20% | 576,976 |
| 10%+ / strategic | 11.31% | 5,425,070 |
| Institutions | 94.79% | 45,480,939 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 10
View all →| Insider | % of shares | Shares |
|---|---|---|
Ceesay AbrahamCEOChief Executive Officer · Director | 1.20% | 576,976 |
Bredt DavidFormerChief Scientific Officer | 0.82% | 393,075 |
Yeleswaram KrishnaswamyFormerChief Development Officer | 0.60% | 286,876 |
Gault CherylFormerChief Operating Officer | 0.33% | 159,914 |
Healy JamesDirector | — | — |
Ignelzi Troy A.Chief Financial Officer | — | — |
Maraganore JohnDirector | — | — |
Paul Steven MDirector | — | — |
Perez Robert JDirector | — | — |
Sevigny JeffreyChief Medical Officer | — | — |
Institutional holders 145
View all →| Holder | Value | % of shares |
|---|---|---|
| $216.48M | 14.87% | |
| $215.77M | 14.82% | |
| $116.67M | 7.77% | |
| $112.50M | 5.63% | |
| $103.23M | 7.09% | |
| $91.85M | 6.31% | |
| $91.08M | 6.26% | |
| $57.78M | 3.97% | |
| $55.15M | 3.79% | |
| $54.14M | 3.72% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common Stock | $11.16M | +268K +11.02% | 2,699,786 5.63% of shares | medium |
| Q1 2026 as of | Prudential Financial Inc 13F manager | Trim | Common Stock | $-4.39M | -140K -54.97% | 114,815 0.24% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common Stock | $4.33M | +104K +14.53% | 818,712 1.71% of shares | low |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common Stock | $3.68M | +118K +58.33% | 319,552 0.67% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Trim | Common Stock | $-3.41M | -109K -91.84% | 9,700 0.02% of shares | low |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Trim | Common Stock | $-2.25M | -72K -29.06% | 175,449 0.37% of shares | low |
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Trim | Common Stock | $-1.84M | -61K -7.68% | 727,843 1.52% of shares | low |
| Q3 2025 as of | Barclays PLC 13F manager | Trim | Common Stock | $-1.32M | -44K -62.43% | 26,713 0.06% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Cormorant Asset Management, LP | Passive13G/A | — |
| BlackRock, Inc. | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| RAPP | Common Stock | 75383L102 |