Jiong Ma

CIK: 0001854872

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (100.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

SES

SES AI Corp

Director

AVXL

ANAVEX LIFE SCIENCES CORP.

Director

Discretionary Trading P&L

Holdings

Transaction History (3 total)

SES
SES AI Corp
May 18, 2026
Award(A)
Direct
141.6K shares-
AVXL
ANAVEX LIFE SCIENCES CORP.
Mar 31, 2025
Award(A)
Stock Option (Right to Buy)
Direct
50K shares-
SES
SES AI Corp
Mar 28, 2025
Award(A)
Direct
160K shares-

		Type	Shares	Price		Ownership
May 18, 2026	SES SES AI Corp	Award(A)	141,593	-	$0	Direct
Mar 31, 2025	AVXL ANAVEX LIFE SCIENCES CORP.	Award(A) Stock Option (Right to Buy)	50,000	-	-	Direct
Mar 28, 2025	SES SES AI Corp	Award(A)	160,000	-	-	Direct

1-3 of 3 transactions

About Ma Jiong

Ma Jiong (SEC CIK 0001854872) files insider reports with the SEC as Director of SES AI Corp (SES) and Director of ANAVEX LIFE SCIENCES CORP. (AVXL).

Signal8 holds 3 ownership filings by Ma Jiong, all Form 4s, filed between Apr 1, 2025 and May 20, 2026. Those filings report 3 transactions, from Mar 28, 2025 to May 18, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Ma Jiong's filings is in WOBURN, MA.

Recent filings by Ma Jiong

May 18, 2026: Grant or award of SES shares (Form 4, code A).
Mar 31, 2025: Grant or award of AVXL derivative securities (Form 4, code A).
Mar 28, 2025: Grant or award of SES shares (Form 4, code A).

Other insiders filing for SES AI Corp (SES)

Diemer Paul, Director
Xu Kang, CHIEF TECHNOLOGY OFFICER
Pilkington Kyle, CHIEF LEGAL OFFICER
Liu Yi Ray, CHIEF FINANCIAL OFFICER
Hu Qichao, CEO & CHAIRMAN
Boyd Andrew J, Director

How to read Form 4 transaction codes