ECOR1 CAPITAL, LLC purchased 2.22M shares of AKTIS ONCOLOGY, INC. on the open market

Open‑market purchase worth $40.00M. The strongest form of insider conviction signal.

P · 2 purchases

ECOR1 CAPITAL, LLC

Filed: 1/12/2026ACC: 0000935836-26-000031

InsiderECOR1 CAPITAL, LLCCIK 1587114

→

IssuerAKTIS ONCOLOGY, INC.CIK 2035832

Director10% Owner

Since Jan 2026

-8.02M

Net shares

Net seller

$40.00M

Total acquired

Open market trades

2B · 0S

Total transactions

5.88M acquired · 13.90M disposed

Non-Derivative Transactions5

Common Stock

Indirect

C · Conversion

+2.27M

Price / share

—

Trade value

—

% of position

New position

1/12/2026

0.00→2.27M

Common Stock

Indirect

C · Conversion

+202.86K

Price / share

—

Trade value

—

% of position

New position

1/12/2026

0.00→202.86K

Common Stock

Indirect

C · Conversion

+128.51K

Price / share

—

Trade value

—

% of position

New position

1/12/2026

0.00→128.51K

Common Stock

Indirect

P · Purchase

+2.08M

Price / share

$18.00

Trade value

$37.40M

% of position

91.5%

1/12/2026

2.27M→4.35M

Common Stock

Indirect

P · Purchase

+144.44K

Price / share

$18.00

Trade value

$2.60M

% of position

71.2%

1/12/2026

202.86K→347.31K

Total

Net shares

+4.82M

Net value

$40M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	1/12/2026	C · Conversion	+2.27M	—	—	New position	0.00	2.27M
Common Stock Indirect	1/12/2026	C · Conversion	+202.86K	—	—	New position	0.00	202.86K
Common Stock Indirect	1/12/2026	C · Conversion	+128.51K	—	—	New position	0.00	128.51K
Common Stock Indirect	1/12/2026	P · Purchase	+2.08M	$18.00	$37.40M	91.5%	2.27M	4.35M
Common Stock Indirect	1/12/2026	P · Purchase	+144.44K	$18.00	$2.60M	71.2%	202.86K	347.31K
Total			+4.82M		$40M

Derivative Transactions7

Series A Redeemable Convertible Preferred Stock

Indirect

C · Conversion

Converts to

Common Stock

2.61M shares

−9.91M

Strike price

Held after

0.00

Exercisable

—

1/12/2026

Series A Redeemable Convertible Preferred Stock

Indirect

C · Conversion

Converts to

Common Stock

262.14K shares

−997.30K

Strike price

Held after

0.00

Exercisable

—

1/12/2026

Series A Redeemable Convertible Preferred Stock

Indirect

C · Conversion

Converts to

Common Stock

128.51K shares

−488.89K

Strike price

Held after

0.00

Exercisable

—

1/12/2026

Series B Redeemable Convertible Preferred Stock

Indirect

C · Conversion

Converts to

Common Stock

630.19K shares

−2.40M

Strike price

Held after

0.00

Exercisable

—

1/12/2026

Series B Redeemable Convertible Preferred Stock

Indirect

C · Conversion

Converts to

Common Stock

26.94K shares

−102.50K

Strike price

Held after

0.00

Exercisable

—

1/12/2026

Class A Common Stock

Indirect

C · Conversion

Converts to

Common Stock

965.19K shares

+965.19K

Strike price

Held after

965.19K

Exercisable

—

1/12/2026

Class A Common Stock

Indirect

C · Conversion

Converts to

Common Stock

86.22K shares

+86.22K

Strike price

Held after

86.22K

Exercisable

—

1/12/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Series A Redeemable Convertible Preferred Stock Indirect	Common Stock2.61M shares	1/12/2026	C · Conversion	−9.91M	—	0.00
Series A Redeemable Convertible Preferred Stock Indirect	Common Stock262.14K shares	1/12/2026	C · Conversion	−997.30K	—	0.00
Series A Redeemable Convertible Preferred Stock Indirect	Common Stock128.51K shares	1/12/2026	C · Conversion	−488.89K	—	0.00
Series B Redeemable Convertible Preferred Stock Indirect	Common Stock630.19K shares	1/12/2026	C · Conversion	−2.40M	—	0.00
Series B Redeemable Convertible Preferred Stock Indirect	Common Stock26.94K shares	1/12/2026	C · Conversion	−102.50K	—	0.00
Class A Common Stock Indirect	Common Stock965.19K shares	1/12/2026	C · Conversion	+965.19K	—	965.19K
Class A Common Stock Indirect	Common Stock86.22K shares	1/12/2026	C · Conversion	+86.22K	—	86.22K