ENDWEISS CHARLES

PrivateCIK: 2157949

Location

REDWOOD CITY, CA

ENDWEISS CHARLES enters SEER, INC. with 107.96K shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Direct Indirect Derivatives

ENDWEISS CHARLES

Filed: 10/8/2026ACC: 0002157949-26-000002

InsiderENDWEISS CHARLESCIK 2157949

→

IssuerSEER, INC.CIK 1726445

Officer· VP Financial Planning Analysis

Since Oct 2026

107.96K

Baseline shares

100% direct

107.64K

Direct ownership

1 position

150.06K

Derivative underlying

7 instruments

3

Security positions

316.00 indirect

Non-Derivative Holdings3

Common Stock

Indirect

Shares owned175.00

Common Stock

Direct

Shares owned107.64K

Common Stock

Indirect

Shares owned141.00

Total

107.64K direct·316.00 indirect107.96K

Security Title	Shares Owned	Ownership Type
Common Stock	175.00	Indirect
Common Stock	107.64K	Direct
Common Stock	141.00	Indirect
Total	107.96K	107.64K direct·316.00 indirect

Derivative Holdings7

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

15K

Shares owned

N/A

Exercise price

2

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

46.73K

Shares owned

N/A

Exercise price

2

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

21.25K

Shares owned

N/A

Exercise price

1.77

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

14K

Shares owned

N/A

Exercise price

1.79

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

21.25K

Shares owned

N/A

Exercise price

2

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

21.25K

Shares owned

N/A

Exercise price

2.33

Expiration

—

Exercise window

—

Employee Stock Option (right to buy)

Direct

Underlying security

Common Stock

Underlying shares

10.58K

Shares owned

N/A

Exercise price

2

Expiration

—

Exercise window

—

Total

Underlying

150.06K

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Employee Stock Option (right to buy) Direct	Common Stock	2	—	—	15K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	2	—	—	46.73K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	1.77	—	—	21.25K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	1.79	—	—	14K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	2	—	—	21.25K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	2.33	—	—	21.25K	N/A
Employee Stock Option (right to buy) Direct	Common Stock	2	—	—	10.58K	N/A
Total					150.06K	0.00

ENDWEISS CHARLES — Initial Ownership Disclosure (Form 3) Filed Oct 8, 2026 | Finecho