MIAX

Miami International Holdings

+$287.7M

Net Activity

Institutions Holding

202

Popularity Rank

#2858

Avg Weight

0.16%

Total Value

$1.9B

Ownership Trend

202 institutions currently hold MIAX, with 158 net buyers and 61 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Majority Increased

Based on recent trading activity

Net Selling Institutions

61

Net Buying Institutions

158

Key Holders

Key Holders

Top 5 by Value

TR
T. Rowe Price Investment Management, Inc.
$161.3M
SI
Susquehanna International Group, LLP
$140.7M
HK
Horizon Kinetics Asset Management LLC
$134.3M
BI
BlackRock, Inc.
$86.9M
CA
Citadel Advisors LLC
$65.9M

Top 5 by Conviction

CI
Caldwell Investment Management Ltd.
9.77%
IE
Intrinsic Edge Capital Management LLC
1.78%
HK
Horizon Kinetics Asset Management LLC
1.46%
SG
Seven Grand Managers, LLC
1.43%
NR
North Reef Capital Management LP
1.36%
View all 202 holding institutions

Quarterly Activity

Recent Activity

+$1.6B

Total Buy Value

$409.8M

Total Sell Value

New buy74
Trim26
Add84
Sold out35

158

Net Buyers

61

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

7

Filings (90d)

$9.12M

Total Est. Value

231K shares

Planned Shares

Last Filed 2026-07-06
FilerFiling DateEst. Value
HARISH JAYABALAN2026-07-06$817K
SHELLY BROWN2026-07-06$653K
DOUGLAS M. SCHAFER JR.2026-07-02$5.62M
KURT M. ECKERT2026-07-02$247K
Brown Shelly2026-06-15$204K
Schwarzkopf Cynthia2026-06-11$795K
Jayabalan Harish2026-06-08$784K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding MIAMI INTERNATIONAL HOLDINGS (MIAX)?
Major stakeholders currently include T. Rowe Price Investment Management, Inc. ($161.3M), Susquehanna International Group, LLP ($140.7M), Horizon Kinetics Asset Management LLC ($134.3M). Based on the latest 13F filings, there are a total of 202 tracked investment funds and institutions maintaining positions in MIAX.
What is the overall institutional sentiment toward MIAX recently?
Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $287.7M, driven by 158 managers accumulating shares while 61 reduced their exposure.
Which institutions have been selling or reducing their MIAX positions?
In the latest period, 26 funds trimmed their holdings, and 35 managers completely exited their positions. The aggregate reported sell value was $409.8M.
Are there any notable investors adding MIAX to their portfolios?
Yes, buying activity remains notable. 74 institutions opened new positions in {ticker}, and 84 existing holders added to their shares. The total reported buy value for the quarter amounted to $1.6B.

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