Insider · CIK 0002079445

Schafer Douglas M. JR

Reports to the SEC for 1 company · PRINCETON, NJ

sec.gov

Transactions

Companies

Filings

CIK

0002079445

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-22	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−8,000 sh	—	—	147,334
2026-10-22	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−8,000 sh	$35.06	−$280K	387,414
2026-10-22	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+8,000 sh	$12.00	+$96K	395,414
2026-10-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+40K sh	$12.00	+$480K	427,414
2026-10-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−40K sh	$33.34	−$1.33M	387,414
2026-10-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−40K sh	—	—	155,334
2026-09-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+43.3K sh	$12.00	+$520K	430,748
2026-09-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+4,666 sh	$12.00	+$56K	435,414
2026-09-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$40.48	−$1.94M	387,414
2026-09-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−43.3K sh	—	—	0
2026-09-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−4,666 sh	—	—	195,334
2026-08-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+48K sh	$12.00	+$576K	435,414
2026-08-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$45.71	−$2.19M	387,414
2026-08-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−48K sh	—	—	43,334
2026-07-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+6,000 sh	$12.00	+$72K	393,414
2026-07-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+42K sh	$12.00	+$504K	435,414
2026-07-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$41.22	−$1.98M	387,414
2026-07-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−6,000 sh	—	—	0
2026-07-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−42K sh	—	—	91,334
2026-06-16	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.A Award	EVP and CIO	AAward	+23.3K sh	—	—	387,414
2026-06-16	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Incentive Stock Option (Right to Buy)A Award	EVP and CIO	AAward	+2,485 sh	—	—	2,485
2026-06-16	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)A Award	EVP and CIO	AAward	+21.5K sh	—	—	21,481
2026-06-11	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.F Tax Payment	EVP and CIO	FTax Payment	−32.6K sh	$40.79	−$1.33M	364,116
2026-06-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+48K sh	$12.00	+$576K	444,681
2026-06-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$42.84	−$2.06M	396,681
2026-06-02	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−48K sh	—	—	6,000
2026-05-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+48K sh	$12.00	+$576K	444,681
2026-05-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$47.25	−$2.27M	396,681
2026-05-04	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−48K sh	—	—	54,000
2026-03-17	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+48K sh	$12.00	+$576K	444,681
2026-03-17	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.S Sale	EVP and CIO	SSale	−48K sh	$39.74	−$1.91M	396,681
2026-03-17	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−48K sh	—	—	102,000
2026-02-18	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.F Tax Payment	EVP and CIO	FTax Payment	−32.6K sh	$40.89	−$1.33M	396,681
2026-02-10	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.F Tax Payment	EVP and CIO	FTax Payment	−109K sh	$41.33	−$4.49M	429,246
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.C Conversion	EVP and CIO	CConversion	+500 sh	—	—	537,796
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC.C Conversion	EVP and CIO	CConversion	+387K sh	—	—	537,796
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Series B Preferred StockC Conversion	EVP and CIO	CConversion	−500 sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonvoting Common StockC Conversion	EVP and CIO	CConversion	−387K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−16.7K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+16.7K sh	—	—	16,666
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−19.7K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Incentive Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+19.7K sh	—	—	19,710
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−150K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+150K sh	—	—	150,000
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−133K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+133K sh	—	—	133,334
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−200K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+200K sh	—	—	200,000
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	−130K sh	—	—	0
2025-08-15	MIAXMIAMI INTERNATIONAL HOLDINGS, INC. · Nonqualified Stock Option (Right to Buy)M Exercise/Conversion	EVP and CIO	MExercise/Conversion	+130K sh	—	—	130,290

Recent filings

Accepted (ET)
Oct 264
Schafer Douglas M. JR0002079445-26-000019
SEC(opens sec.gov)
Oct 64
Schafer Douglas M. JR0001628280-26-065268
SEC(opens sec.gov)
Sep 44
Schafer Douglas M. JR0002079445-26-000017
SEC(opens sec.gov)
Aug 64
Schafer Douglas M. JR0002079445-26-000015
SEC(opens sec.gov)
Jul 74
Schafer Douglas M. JR0001628280-26-047484
SEC(opens sec.gov)
Jun 184
Schafer Douglas M. JR0002079445-26-000013
SEC(opens sec.gov)

Companies

MIAMI INTERNATIONAL HOLDINGS, INC.EVP and CIOMIAX

Address

C/O MIAMI INTERNATIONAL HOLDINGS, INC. 7 ROSZEL ROAD, SUITE 1A

PRINCETON, NJ, 08540