RA CAPITAL MANAGEMENT, L.P. purchased 21.19M shares of PARABILIS MEDICINES, INC. on the open market

Open‑market purchase worth $423.77M. The strongest form of insider conviction signal.

P · 2 purchases

RA CAPITAL MANAGEMENT, L.P.

Filed: 6/15/2026ACC: 0001231919-26-000638

InsiderRA CAPITAL MANAGEMENT, L.P.CIK 1346824

→

IssuerPARABILIS MEDICINES, INC.CIK 1657677

Director

Since Jun 2026

+17.02M

Net shares

Net buyer

$423.77M

Total acquired

Open market trades

2B · 0S

Total transactions

28.93M acquired · 11.92M disposed

Non-Derivative Transactions4

Voting Common Stock

Indirect

C · Conversion

+6.56M

Price / share

—

Trade value

—

% of position

New position

6/11/2026

0.00→6.56M

Voting Common Stock

Indirect

C · Conversion

+1.19M

Price / share

—

Trade value

—

% of position

New position

6/11/2026

0.00→1.19M

Voting Common Stock

Indirect

P · Purchase

+19.73M

Price / share

$20.00

Trade value

$394.57M

% of position

300.9%

6/11/2026

6.56M→26.29M

Voting Common Stock

Indirect

P · Purchase

+1.46M

Price / share

$20.00

Trade value

$29.21M

% of position

122.9%

6/11/2026

1.19M→2.65M

Total

Net shares

+28.93M

Net value

$423.77M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Voting Common Stock Indirect	6/11/2026	C · Conversion	+6.56M	—	—	New position	0.00	6.56M
Voting Common Stock Indirect	6/11/2026	C · Conversion	+1.19M	—	—	New position	0.00	1.19M
Voting Common Stock Indirect	6/11/2026	P · Purchase	+19.73M	$20.00	$394.57M	300.9%	6.56M	26.29M
Voting Common Stock Indirect	6/11/2026	P · Purchase	+1.46M	$20.00	$29.21M	122.9%	1.19M	2.65M
Total			+28.93M		$423.77M

Derivative Transactions4

Series E Preferred Stock

Indirect

C · Conversion

Converts to

Voting Common Stock

419.01K shares

−642.25K

Strike price

Held after

0.00

Exercisable

—

6/11/2026

Series E Preferred Stock

Indirect

C · Conversion

Converts to

Voting Common Stock

104.75K shares

−160.56K

Strike price

Held after

0.00

Exercisable

—

6/11/2026

Series F Preferred Stock

Indirect

C · Conversion

Converts to

Voting Common Stock

6.14M shares

−9.45M

Strike price

Held after

0.00

Exercisable

—

6/11/2026

Series F Preferred Stock

Indirect

C · Conversion

Converts to

Voting Common Stock

1.08M shares

−1.67M

Strike price

Held after

0.00

Exercisable

—

6/11/2026

Security	Converts To	Date	Type	Shares	Exercisable
Series E Preferred Stock Indirect	Voting Common Stock419.01K shares	6/11/2026	C · Conversion	−642.25K	—
Series E Preferred Stock Indirect	Voting Common Stock104.75K shares	6/11/2026	C · Conversion	−160.56K	—
Series F Preferred Stock Indirect	Voting Common Stock6.14M shares	6/11/2026	C · Conversion	−9.45M	—
Series F Preferred Stock Indirect	Voting Common Stock1.08M shares	6/11/2026	C · Conversion	−1.67M	—