13F Insight
DOSSIER · 13F Holders · Q1 2026
RAPP

RAPPORT THERAPEUTICS INC

156 institutions still hold RAPPORT THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 75383L102·156 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$1.4B
visible holders
Holders
156
filers reporting
Concentration
16.02%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

PSP Research LLC and Catalyst Private Wealth kept their combined 24,000 shares in Rapport Therapeutics completely untouched during Q2 2026, maintaining a steady foundation as top holder Swedbank expanded its lead. Swedbank added 4,200 shares ($175k flow) to control 55% of total institutional value.

Key Institutional Buyers

  • Swedbank AB: Added 4,200 shares (+3.7%, +$175k flow) to reach 117,400 shares ($4.89M total value).
  • Ellsworth Advisors: Established a major new 24,539-share position ($980k), becoming the second-largest institutional holder.
  • Police & Firemen’s Retirement System of NJ: Added 1,563 shares (+20.9%, +$65.1k flow) to reach 9,034 shares ($376k).

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$224M7.2M0.01%Q1 202602
TRV GP V, LLC
CIK 0001990717
$223M7.1M55.68%Q1 202603
ARCH Venture Management, LLC
CIK 0001274403
$117M3.7M17.23%Q1 202604
Capital International Investors
CIK 0001562230
$97M3.1M0.02%Q1 202605
Cormorant Asset Management, LP
CIK 0001583977
$93M3.0M4.65%Q1 202606
GOLDMAN SACHS GROUP INC
CIK 0000886982
$92M2.9M0.01%Q1 202607
BlackRock, Inc.
CIK 0002012383
$78M2.5M0.00%Q1 202608
Sofinnova Investments, Inc.
CIK 0001631134
$60M1.9M2.26%Q1 202609
JOHNSON & JOHNSON
CIK 0000200406
$56M1.8M8.56%Q1 202610
Polar Capital Holdings Plc
CIK 0001837309
$51M1.6M0.18%Q1 202611
BAKER BROS. ADVISORS LP
CIK 0001263508
$47M1.5M0.27%Q4 202512
Vestal Point Capital, LP
CIK 0001974915
$45M1.4M1.26%Q1 202613
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$41M1.3M0.00%Q1 202614
TRV GP VI, LLC
CIK 0001990716
$30M969K22.37%Q1 202615
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$29M919K0.01%Q1 202616
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$27M866K0.00%Q1 202617
STATE STREET CORP
CIK 0000093751
$24M760K0.00%Q1 202618
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$23M722K0.00%Q1 202619
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$22M728K0.01%Q1 202620
PERCEPTIVE ADVISORS LLC
CIK 0001224962
$21M674K0.41%Q1 2026
Page 1 of 8
136 more holders available. Log in →
Insiders at RAPPORT THERAPEUTICS INC
Ceesay Abraham →Maraganore John →Paul Steven M →Perez Robert J →Huber Reid M →Healy James →Silva Paul M →Sanchez Ramiro →