Platform Features
Platform Features
Features
Investment Products
Private Wealth Management
Trading Tools
Market Data Services
Analysis Tools
News Services
For Developers
Account Types
For Individuals
For Institutions
Café
More
Log in / Sign up
© 2026 Longbridge｜
Terms of Service
Privacy Policy
Disclaimer
Horizon Quantum
HQ
--
--
Start trading
Overview
Overview
Options
Options
News
News
Posts
Posts
Financials
Financials
Forecast
Forecast
Valuation
Valuation
Shareholders
Shareholders
Profile
Profile
All Shareholders
Institutional Holders
Insiders
All Shareholders
Shareholder Type
Individuals & Insiders
40.63%
Public companies
16.30%
Public and others
15.29%
Institutions
15.24%
VC/PE firms
12.54%
Major Shareholders
Latest
Major Shareholders Latest
Shareholder
% Held
Shares Held
Change %
Shares Changed
Report Date
Joe Fitzsimons
Founder, CEO & Director
38.28%
19.74M
--
+19.74M
03/19/2026
Peak XV Partners Operations LLC
12.54%
6.47M
--
+6.47M
03/19/2026
Penserra Capital Management LLC
10.41%
5.37M
--
+5.37M
06/30/2026
IonQ, Inc.
8.20%
4.23M
--
+4.23M
03/19/2026
Tencent Holdings Limited
8.10%
4.18M
--
+4.18M
03/19/2026
Harry You
Director
2.35%
1.21M
--
+1.21M
03/19/2026
DCVC
1.77%
915.20K
--
+915.20K
03/31/2026
Davidson Kempner Capital Management LP
1.23%
634.52K
--
+634.52K
03/31/2026
Citadel Advisors LLC
0.49%
251.23K
--
+251.23K
03/31/2026
National Philanthropic Trust
0.45%
231.52K
--
+231.52K
03/31/2026
Hudson Bay Capital Management LP
0.31%
160.44K
--
+160.44K
03/31/2026
UBS Asset Management AG
0.14%
70.33K
--
+70.33K
03/31/2026
Meteora Capital, LLC
0.11%
54.36K
--
+54.36K
03/31/2026
Van Eck Associates Corporation
0.09%
44.77K
--
+44.77K
06/30/2026
Shay Capital LLC
0.08%
39.90K
--
+39.90K
03/31/2026
DLD Asset Management, LP
0.05%
27.50K
--
+27.50K
03/31/2026
Millennium Management LLC
0.04%
20.63K
--
+20.63K
06/17/2026
Lineage Point Capital LP
0.03%
16.00K
--
+16.00K
03/31/2026
Hudson River Trading LLC
0.03%
13.06K
--
+13.06K
03/31/2026
FMR LLC
0.01%
7.68K
<0.01%
+3.30K
04/30/2026
