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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•179 filings

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.

Net sales of $25.3M over the last 3 months

10 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$25,330,089

0 buyers · 10 sellers

12-month purchases

$722,511

2 distinct insiders

12-month sales

$77,272,114

12 distinct insiders

Highlighted alerts

20

67 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

100
Raw transactions
Everything returned by the filing
87
Voluntary view
P/S trades after deterministic checks
70
Administrative noise
Stored, never alerted
95
10b5-1
Shown as informational
SEC ownership XML facts
Code
M
Shares
12,306
Price
$12.00
Footnotes
3

This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025. This transaction was executed in multiple trades throughout the day at prices ranging from $35.00 to $35.14. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. The options are fully vested.

Raspberry interpretation
Informational — no alert

Reason: administrative_code. The trade is reported under a Rule 10b5-1 plan.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

87 transactions

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
12,306
Price
$35.04
Value
$431,202
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
8,000
Price
$35.06
Value
$280,480
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
40,000
Price
$33.34
Value
$1,333,600
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
21,217
Price
$38.61
Value
$819,188
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
11,000
Price
$42.21
Value
$464,310
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
47,000
Price
$42.43
Value
$1,994,210
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
44,445
Price
$40.49
Value
$1,799,578
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$40.48
Value
$1,943,040
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
3,000
Price
$40.89
Value
$122,670
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
5,545
Price
$41.58
Value
$230,561
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
149,700
Price
$41.13
Value
$6,157,161
Open SEC filing

Schwarzkopf Cynthia

Director

Sale 10b5-1
Shares
5,000
Price
$42.85
Value
$214,250
Open SEC filing

Emmons Lance

EVP and CFO

Sale 10b5-1
Shares
35,000
Price
$42.83
Value
$1,499,050
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
44,445
Price
$45.69
Value
$2,030,692
Open SEC filing

Eckert Kurt M.

Director

Sale 10b5-1
Shares
1,063
Price
$45.80
Value
$48,685
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
11,000
Price
$45.78
Value
$503,580
Open SEC filing

Jayabalan Harish

EVP, CISO and CRO

Sale 10b5-1
Shares
20,000
Price
$45.90
Value
$918,000
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
48,334
Price
$45.69
Value
$2,208,380
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$45.71
Value
$2,194,080
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
3,000
Price
$45.79
Value
$137,370
Open SEC filing

Schwarzkopf Cynthia

Director

Sale 10b5-1
Shares
5,000
Price
$42.00
Value
$210,000
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
28,000
Price
$41.98
Value
$1,175,440
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
70,000
Price
$42.52
Value
$2,976,400
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
28,228
Price
$42.27
Value
$1,193,198
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
41,772
Price
$42.09
Value
$1,758,183
Open SEC filing

Jayabalan Harish

EVP, CISO and CRO

Sale 10b5-1
Shares
20,000
Price
$42.12
Value
$842,400
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
11,000
Price
$42.04
Value
$462,440
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
16,000
Price
$42.13
Value
$674,080
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
3,000
Price
$40.00
Value
$120,000
Open SEC filing

Eckert Kurt M.

Director

Sale 10b5-1
Shares
5,250
Price
$39.35
Value
$206,588
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
28,000
Price
$41.22
Value
$1,154,160
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$41.22
Value
$1,978,560
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
4,714
Price
$44.23
Value
$208,500
Open SEC filing

Schwarzkopf Cynthia

Director

Sale 10b5-1
Shares
19,500
Price
$41.73
Value
$813,735
Open SEC filing

Jayabalan Harish

EVP, CISO and CRO

Sale 10b5-1
Shares
9,783
Price
$40.04
Value
$391,711
Open SEC filing

Jayabalan Harish

EVP, CISO and CRO

Sale 10b5-1
Shares
10,217
Price
$40.12
Value
$409,906
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
28,000
Price
$42.85
Value
$1,199,800
Open SEC filing

Eckert Kurt M.

Director

Sale 10b5-1
Shares
5,250
Price
$42.76
Value
$224,490
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
11,000
Price
$42.16
Value
$463,760
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
16,000
Price
$42.12
Value
$673,920
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
70,000
Price
$42.36
Value
$2,965,200
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$42.84
Value
$2,056,320
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
3,000
Price
$42.78
Value
$128,340
Open SEC filing

Emmons Lance

EVP and CFO

Sale 10b5-1
Shares
35,000
Price
$56.36
Value
$1,972,600
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
15,771
Price
$47.92
Value
$755,746
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
28,000
Price
$47.26
Value
$1,323,280
Open SEC filing

Eckert Kurt M.

Director

Sale 10b5-1
Shares
5,625
Price
$47.29
Value
$266,006
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
16,000
Price
$47.28
Value
$756,480
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$47.25
Value
$2,268,000
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
3,000
Price
$47.30
Value
$141,900
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
54,229
Price
$47.26
Value
$2,562,863
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
11,000
Price
$47.28
Value
$520,080
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
49,900
Price
$43.68
Value
$2,179,632
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
104,124
Price
$43.36
Value
$4,514,817
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

Sale 10b5-1
Shares
70,001
Price
$43.36
Value
$3,035,243
Open SEC filing

Comly Barbara J.

EVP, GC & Corporate Secretary

Sale 10b5-1
Shares
29,667
Price
$43.64
Value
$1,294,668
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
7,572
Price
$42.02
Value
$318,175
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
16,434
Price
$42.08
Value
$691,543
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
4,001
Price
$42.00
Value
$168,042
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

Sale 10b5-1
Shares
762
Price
$42.00
Value
$32,004
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
900
Price
$42.00
Value
$37,800
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
2,357
Price
$41.33
Value
$97,415
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
2,700
Price
$40.00
Value
$108,000
Open SEC filing

Teekell Judson Gray

Director

Sale 10b5-1
Shares
300
Price
$40.00
Value
$12,000
Open SEC filing

Brown Shelly

EVP, Chief Strategy Officer

Sale 10b5-1
Shares
25,932
Price
$39.33
Value
$1,019,906
Open SEC filing

Eckert Kurt M.

Director

Sale 10b5-1
Shares
37,917
Price
$39.00
Value
$1,478,763
Open SEC filing

Schafer Douglas M. JR

EVP and CIO

Sale 10b5-1
Shares
48,000
Price
$39.74
Value
$1,907,520
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
7,200
Price
$43.08
Value
$310,176
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
7,200
Price
$43.38
Value
$312,336
Open SEC filing

STAHL MURRAY

Director

SaleAlert
Shares
53,578
Price
$40.92
Value
$2,192,412
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
2,439
Price
$41.00
Value
$99,999
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
2
Price
$41.97
Value
$83.94
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
4
Price
$41.76
Value
$167.04
Open SEC filing

STAHL MURRAY

Director

PurchaseAlert
Shares
34,470
Price
$36.10
Value
$1,244,367
Open SEC filing

Emmons Lance

EVP and CFO

PurchaseAlert
Shares
4
Price
$31.44
Value
$125.76
Open SEC filing

Moore Lisa

Director

PurchaseAlert
Shares
5,500
Price
$23.00
Value
$126,500
Open SEC filing

Jayabalan Harish

EVP, CISO and CRO

PurchaseAlert
Shares
2,500
Price
$23.00
Value
$57,500
Open SEC filing

Stahlin Paul

Director

PurchaseAlert
Shares
1,000
Price
$23.00
Value
$23,000
Open SEC filing

Nazarali Jamil

Director

PurchaseAlert
Shares
2,500
Price
$23.00
Value
$57,500
Open SEC filing

Smollen John

EVP Traded Products & Relation

PurchaseAlert
Shares
5,000
Price
$23.00
Value
$115,000
Open SEC filing

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

PurchaseAlert
Shares
100
Price
$23.00
Value
$2,300
Open SEC filing

Gallagher Thomas P.

Chairman & CEO

PurchaseAlert
Shares
12,000
Price
$23.00
Value
$276,000
Open SEC filing

Lozier Kenneth W.

Director

PurchaseAlert
Shares
1,000
Price
$23.00
Value
$23,000
Open SEC filing

Massad Mark I.

Director

PurchaseAlert
Shares
500
Price
$23.00
Value
$11,500
Open SEC filing

Massad Mark I.

Director

PurchaseAlert
Shares
1,500
Price
$23.00
Value
$34,500
Open SEC filing

Massad Mark I.

Director

PurchaseAlert
Shares
2,500
Price
$23.00
Value
$57,500
Open SEC filing

Massad Mark I.

Director

PurchaseAlert
Shares
3,500
Price
$23.00
Value
$80,500
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.