MIAX
MIAMI INTL (MIAX)
NYSE
$41.76-$0.55 (-1.31%)
Price as of Jul 13, 2026 7:58 PM EDT
  • $4.1B
    Market Cap
  • N/A
    1-Year Change
  • Capital Markets
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
4.28%
4.1M
+1.1M (+27.01%)
Mar 31, 2026
HORIZON KINETICS ASSET MANAGEMENT LLC
3.57%
3.5M
+1.6M (+47.28%)
Mar 31, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
3.41%
3.3M
+11,394 (+0.35%)
Mar 31, 2026
BLACKROCK, INC.
2.31%
2.2M
+479,173 (+21.46%)
Mar 31, 2026
VANGUARD GROUP INC
1.99%
1.9M
+545,770 (+28.30%)
Dec 31, 2025
CITADEL ADVISORS LLC
1.66%
1.6M
+988,200 (+61.46%)
Mar 31, 2026
INVESCO LTD.
1.64%
1.6M
+306,037 (+19.31%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions109.4M (77.79%)
  • Mutual Funds21.3M (15.13%)
  • Insiders10.0M (7.08%)
  • Other0 (0.00%)

Insider Transactions

  • 7.08% (10.0M)
    Current InsiderOwnership (%, shares)
  • 11
    Number of InsiderBuying (last 12 months)
  • $581.8M
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $282.2M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Teekell Judson Gray
Sell
Jul 02, 2026
$120,000.00
3,000
$40.00
75,251
Schafer Douglas M. JR
EVP and CIO
Exempt
Jul 02, 2026
$0.00
6,000
$0.00
0
Schafer Douglas M. JR
EVP and CIO
Exempt
Jul 02, 2026
$0.00
42,000
$0.00
91,334
Schafer Douglas M. JR
EVP and CIO
Exempt
Jul 02, 2026
$72,000.00
6,000
$12.00
393,414
Schafer Douglas M. JR
EVP and CIO
Exempt
Jul 02, 2026
$504,000.00
42,000
$12.00
435,414
Schafer Douglas M. JR
EVP and CIO
Sell
Jul 02, 2026
$2.0M
48,000
$41.22
387,414
Sommers Jill E.
Award
Jun 16, 2026
$0.00
2,571
$0.00
2,571
Stahlin Paul
Award
Jun 16, 2026
$0.00
4,970
$0.00
42,143
Al-Bahar Talal Jassim
Award
Jun 16, 2026
$0.00
4,970
$0.00
40,891
Schwarzkopf Cynthia
Award
Jun 16, 2026
$0.00
4,970
$0.00
88,545
Comly Barbara J.
EVP, GC & Corporate Secretary
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Brown Shelly
EVP, Chief Strategy Officer
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Smollen John
EVP, New Product Development
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Sites Eric
Award
Jun 16, 2026
$0.00
4,970
$0.00
5,684
Moore Lisa
Award
Jun 16, 2026
$0.00
4,970
$0.00
12,737
BROWN DAVID A
Award
Jun 16, 2026
$0.00
5,142
$0.00
5,142
Smollen John
EVP, New Product Development
Award
Jun 16, 2026
$0.00
5,184
$0.00
5,184
Jayabalan Harish
EVP, CISO and CRO
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Gallagher Thomas P.
Chairman & CEO
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Teekell Judson Gray
Award
Jun 16, 2026
$0.00
4,970
$0.00
78,251
Smollen John
EVP, New Product Development
Award
Jun 16, 2026
$0.00
7,455
$0.00
178,212
Lozier Kenneth W.
Award
Jun 16, 2026
$0.00
2,571
$0.00
2,571
Sommers Jill E.
Award
Jun 16, 2026
$0.00
4,970
$0.00
6,083
BROWN DAVID A
Award
Jun 16, 2026
$0.00
4,970
$0.00
7,237
Comly Barbara J.
EVP, GC & Corporate Secretary
Award
Jun 16, 2026
$0.00
37,778
$0.00
37,778
Deitzel Edward
EVP, CRO, CCO MIAX Exchanges
Award
Jun 16, 2026
$0.00
2,485
$0.00
2,485
Gallagher Thomas P.
Chairman & CEO
Award
Jun 16, 2026
$0.00
237,175
$0.00
237,175
Brown Shelly
EVP, Chief Strategy Officer
Award
Jun 16, 2026
$0.00
35,861
$0.00
35,861
Comly Barbara J.
EVP, GC & Corporate Secretary
Award
Jun 16, 2026
$0.00
39,140
$0.00
882,984
Raymond Mark F.
Exempt
Jun 16, 2026
$0.00
16,000
$0.00
0