BITTERMAN KEVIN sold 92.9% of their position (184.12K shares) of DISC MEDICINE, INC. on the open market

Open‑market sale worth $16.86M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 19 sales

BITTERMAN KEVIN

Filed: 12/16/2025ACC: 0001104659-25-121740

InsiderBITTERMAN KEVINCIK 1591747

→

IssuerDISC MEDICINE, INC.CIK 1816736

Director

Since Dec 2022

-184.12K

Net shares

Net seller

$16.86M

Total sold

Open market trades

0B · 19S

Total transactions

7K acquired · 191.12K disposed

Non-Derivative Transactions20

Common Stock

Indirect

S · Sale

−16.40K

Price / share

$92.05

Trade value

$1.51M

% of position

3.7%

12/12/2025

442.04K→425.63K

Common Stock

Indirect

S · Sale

−3.85K

Price / share

$92.58

Trade value

$356.62K

% of position

0.9%

12/12/2025

425.63K→421.78K

Common Stock

Indirect

S · Sale

−3.45K

Price / share

$93.80

Trade value

$323.23K

% of position

0.8%

12/12/2025

421.78K→418.33K

Common Stock

Indirect

S · Sale

−8.53K

Price / share

$92.05

Trade value

$784.91K

% of position

2.2%

12/12/2025

385.55K→377.02K

Common Stock

Indirect

S · Sale

−2K

Price / share

$92.58

Trade value

$185.62K

% of position

0.5%

12/12/2025

377.02K→375.02K

Common Stock

Indirect

S · Sale

−1.79K

Price / share

$93.80

Trade value

$168.18K

% of position

0.5%

12/12/2025

375.02K→373.22K

Common Stock

Indirect

S · Sale

−6.57K

Price / share

$92.05

Trade value

$604.77K

% of position

12.9%

12/12/2025

51K→44.43K

Common Stock

Indirect

S · Sale

−1.54K

Price / share

$92.58

Trade value

$142.57K

% of position

3.5%

12/12/2025

44.43K→42.89K

Common Stock

Indirect

S · Sale

−1.37K

Price / share

$93.80

Trade value

$128.60K

% of position

3.2%

12/12/2025

42.89K→41.52K

Common Stock

Indirect

S · Sale

−28.91K

Price / share

$91.18

Trade value

$2.64M

% of position

6.9%

12/15/2025

418.33K→389.42K

Common Stock

Indirect

S · Sale

−3.92K

Price / share

$92.01

Trade value

$360.77K

% of position

1.0%

12/15/2025

389.42K→385.50K

Common Stock

Indirect

S · Sale

−14.81K

Price / share

$91.18

Trade value

$1.35M

% of position

4.0%

12/15/2025

373.22K→358.41K

Common Stock

Indirect

S · Sale

−2.05K

Price / share

$92.01

Trade value

$188.53K

% of position

0.6%

12/15/2025

358.41K→356.36K

Common Stock

Indirect

S · Sale

−11.43K

Price / share

$91.18

Trade value

$1.04M

% of position

27.5%

12/15/2025

41.52K→30.09K

Common Stock

Indirect

S · Sale

−1.57K

Price / share

$92.01

Trade value

$144.64K

% of position

5.2%

12/15/2025

30.09K→28.52K

Common Stock

Direct

M · Option Exercise

+7K

Price / share

$13.50

Trade value

$94.50K

% of position

New position

12/15/2025

0.00→7K

Common Stock

Direct

S · Sale

−7K

Price / share

$91.87

Trade value

$643.09K

% of position

New position

12/15/2025

7K→0.00

Common Stock

Indirect

S · Sale

−35.90K

Price / share

$91.24

Trade value

$3.28M

% of position

9.3%

12/16/2025

385.50K→349.60K

Common Stock

Indirect

S · Sale

−18.67K

Price / share

$91.24

Trade value

$1.70M

% of position

5.2%

12/16/2025

356.36K→337.70K

Common Stock

Indirect

S · Sale

−14.36K

Price / share

$91.24

Trade value

$1.31M

% of position

50.3%

12/16/2025

28.52K→14.16K

Total

Net shares

−177.12K

Net value

-$16.76M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	12/12/2025	S · Sale	−16.40K	$92.05	$1.51M	3.7%	442.04K	425.63K
Common Stock Indirect	12/12/2025	S · Sale	−3.85K	$92.58	$356.62K	0.9%	425.63K	421.78K
Common Stock Indirect	12/12/2025	S · Sale	−3.45K	$93.80	$323.23K	0.8%	421.78K	418.33K
Common Stock Indirect	12/12/2025	S · Sale	−8.53K	$92.05	$784.91K	2.2%	385.55K	377.02K
Common Stock Indirect	12/12/2025	S · Sale	−2K	$92.58	$185.62K	0.5%	377.02K	375.02K
Common Stock Indirect	12/12/2025	S · Sale	−1.79K	$93.80	$168.18K	0.5%	375.02K	373.22K
Common Stock Indirect	12/12/2025	S · Sale	−6.57K	$92.05	$604.77K	12.9%	51K	44.43K
Common Stock Indirect	12/12/2025	S · Sale	−1.54K	$92.58	$142.57K	3.5%	44.43K	42.89K
Common Stock Indirect	12/12/2025	S · Sale	−1.37K	$93.80	$128.60K	3.2%	42.89K	41.52K
Common Stock Indirect	12/15/2025	S · Sale	−28.91K	$91.18	$2.64M	6.9%	418.33K	389.42K
Common Stock Indirect	12/15/2025	S · Sale	−3.92K	$92.01	$360.77K	1.0%	389.42K	385.50K
Common Stock Indirect	12/15/2025	S · Sale	−14.81K	$91.18	$1.35M	4.0%	373.22K	358.41K
Common Stock Indirect	12/15/2025	S · Sale	−2.05K	$92.01	$188.53K	0.6%	358.41K	356.36K
Common Stock Indirect	12/15/2025	S · Sale	−11.43K	$91.18	$1.04M	27.5%	41.52K	30.09K
Common Stock Indirect	12/15/2025	S · Sale	−1.57K	$92.01	$144.64K	5.2%	30.09K	28.52K
Common Stock Direct	12/15/2025	M · Option Exercise	+7K	$13.50	$94.50K	New position	0.00	7K
Common Stock Direct	12/15/2025	S · Sale	−7K	$91.87	$643.09K	New position	7K	0.00
Common Stock Indirect	12/16/2025	S · Sale	−35.90K	$91.24	$3.28M	9.3%	385.50K	349.60K
Common Stock Indirect	12/16/2025	S · Sale	−18.67K	$91.24	$1.70M	5.2%	356.36K	337.70K
Common Stock Indirect	12/16/2025	S · Sale	−14.36K	$91.24	$1.31M	50.3%	28.52K	14.16K
Total			−177.12K		-$16.76M

Derivative Transactions1

Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

7K shares

−7K

Strike price

13.5

Held after

0.00

Exercisable

—

12/15/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (Right to Buy) Direct	Common Stock7K shares	12/15/2025	M · Option Exercise	−7K	13.5	—	0.00