DELONG MARK JEFFREY (Senior Vice President) received a stock award from APELLIS PHARMACEUTICALS, INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 4 awards

DELONG MARK JEFFREY

Filed: 5/14/2026ACC: 0001193125-26-224597

InsiderDELONG MARK JEFFREYCIK 1856078

→

IssuerAPELLIS PHARMACEUTICALS, INC.CIK 1492422

Officer· Senior Vice President

Since Mar 2021

-421.70K

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

115.17K acquired · 536.87K disposed

Non-Derivative Transactions13

Common Stock

Direct

U · U

−114.59K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

114.59K→0.00

Common Stock

Direct

A · Award

+41.25K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

0.00→41.25K

Common Stock

Direct

D · Disposition

−41.25K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

41.25K→0.00

Common Stock

Direct

A · Award

+19.01K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

0.00→19.01K

Common Stock

Direct

D · Disposition

−19.01K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

19.01K→0.00

Common Stock

Direct

A · Award

+36.61K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

0.00→36.61K

Common Stock

Direct

D · Disposition

−36.61K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

36.61K→0.00

Common Stock

Direct

A · Award

+18.30K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

0.00→18.30K

Common Stock

Direct

D · Disposition

−18.30K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

18.30K→0.00

Common Stock

Direct

D · Disposition

−36.61K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

36.61K→0.00

Common Stock

Direct

D · Disposition

−4.91K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

4.91K→0.00

Common Stock

Direct

D · Disposition

−8.48K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

8.48K→0.00

Common Stock

Direct

D · Disposition

−21.38K

Price / share

—

Trade value

—

% of position

New position

5/14/2026

21.38K→0.00

Total

Net shares

−185.97K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	5/14/2026	U · U	−114.59K	—	—	New position	114.59K	0.00
Common Stock Direct	5/14/2026	A · Award	+41.25K	—	—	New position	0.00	41.25K
Common Stock Direct	5/14/2026	D · Disposition	−41.25K	—	—	New position	41.25K	0.00
Common Stock Direct	5/14/2026	A · Award	+19.01K	—	—	New position	0.00	19.01K
Common Stock Direct	5/14/2026	D · Disposition	−19.01K	—	—	New position	19.01K	0.00
Common Stock Direct	5/14/2026	A · Award	+36.61K	—	—	New position	0.00	36.61K
Common Stock Direct	5/14/2026	D · Disposition	−36.61K	—	—	New position	36.61K	0.00
Common Stock Direct	5/14/2026	A · Award	+18.30K	—	—	New position	0.00	18.30K
Common Stock Direct	5/14/2026	D · Disposition	−18.30K	—	—	New position	18.30K	0.00
Common Stock Direct	5/14/2026	D · Disposition	−36.61K	—	—	New position	36.61K	0.00
Common Stock Direct	5/14/2026	D · Disposition	−4.91K	—	—	New position	4.91K	0.00
Common Stock Direct	5/14/2026	D · Disposition	−8.48K	—	—	New position	8.48K	0.00
Common Stock Direct	5/14/2026	D · Disposition	−21.38K	—	—	New position	21.38K	0.00
Total			−185.97K		$0.00

Derivative Transactions8

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

82.50K shares

−82.50K

Strike price

19.39

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

14.80K shares

−14.80K

Strike price

13.85

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

27.22K shares

−27.22K

Strike price

35.46

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

18.75K shares

−18.75K

Strike price

44.33

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

30K shares

−30K

Strike price

44.90

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

6.95K shares

−6.95K

Strike price

47.12

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

30.84K shares

−30.84K

Strike price

52.66

Held after

0.00

Exercisable

—

5/14/2026

Stock Option (right to buy)

Direct

D · Disposition

Converts to

Common Stock

24.67K shares

−24.67K

Strike price

66.30

Held after

0.00

Exercisable

—

5/14/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable
Stock Option (right to buy) Direct	Common Stock82.50K shares	5/14/2026	D · Disposition	−82.50K	19.39	—
Stock Option (right to buy) Direct	Common Stock14.80K shares	5/14/2026	D · Disposition	−14.80K	13.85	—
Stock Option (right to buy) Direct	Common Stock27.22K shares	5/14/2026	D · Disposition	−27.22K	35.46	—
Stock Option (right to buy) Direct	Common Stock18.75K shares	5/14/2026	D · Disposition	−18.75K	44.33	—
Stock Option (right to buy) Direct	Common Stock30K shares	5/14/2026	D · Disposition	−30K	44.90	—
Stock Option (right to buy) Direct	Common Stock6.95K shares	5/14/2026	D · Disposition	−6.95K	47.12	—
Stock Option (right to buy) Direct	Common Stock30.84K shares	5/14/2026	D · Disposition	−30.84K	52.66	—
Stock Option (right to buy) Direct	Common Stock24.67K shares	5/14/2026	D · Disposition	−24.67K	66.30	—