Jeffrey G. Black

CIK: 0001449439

Transaction Breakdown

Open Market Buys (P)1 (10.0%)

High conviction signal

Open Market Sales (S)3 (30.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (10.0%)

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

Companies & Roles (2)

XGN

EXAGEN INC.

Officer

LAB

STANDARD BIOTOOLS INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (10 total)

XGN
EXAGEN INC.
Sep 1, 2026
Award(A)
Direct
1.6K shares at avg. $3.02$5K
XGN
EXAGEN INC.
Sep 1, 2026
Sale(S)
Direct
20.6K shares at avg. $7.22$149K
XGN
EXAGEN INC.
Mar 12, 2026
Award(A)
Direct
75K shares at avg. $3.16$237K
XGN
EXAGEN INC.
Feb 27, 2026
Award(A)
Direct
1.5K shares at avg. $3.08$5K
XGN
EXAGEN INC.
Feb 24, 2026
Sale(S)
Direct
1.6K shares at avg. $3.61$6K
XGN
EXAGEN INC.
Sep 2, 2025
Sale(S)
Direct
20.5K shares at avg. $9.79$200K
XGN
EXAGEN INC.
Feb 21, 2025
Award(A)
Direct
15K shares-
XGN
EXAGEN INC.
Nov 15, 2024
Purchase(P)
Direct
22.3K shares at avg. $2.98$66K
XGN
EXAGEN INC.
Sep 1, 2024
Award(A)
Direct
225K shares-
LAB
STANDARD BIOTOOLS INC.
Aug 20, 2024
Tax Payment(F)
Direct
6.7K shares at avg. $1.91$13K

		Type	Shares	Price		Ownership
Sep 1, 2026	XGN EXAGEN INC.	Award(A)	1,571	$3.02	$4,740	Direct
Sep 1, 2026	XGN EXAGEN INC.	Sale(S)	20,614	$7.22	$148,782	Direct
Mar 12, 2026	XGN EXAGEN INC.	Award(A)	75,000	$3.16	$237,000	Direct
Feb 27, 2026	XGN EXAGEN INC.	Award(A)	1,511	$3.08	$4,649	Direct
Feb 24, 2026	XGN EXAGEN INC.	Sale(S)	1,584	$3.61	$5,718	Direct
Sep 2, 2025	XGN EXAGEN INC.	Sale(S)	20,466	$9.79	$200,362	Direct
Feb 21, 2025	XGN EXAGEN INC.	Award(A)	15,000	-	-	Direct
Nov 15, 2024	XGN EXAGEN INC.	Purchase(P)	22,298	$2.98	$66,448	Direct
Sep 1, 2024	XGN EXAGEN INC.	Award(A)	225,000	-	$0	Direct
Aug 20, 2024	LAB STANDARD BIOTOOLS INC.	Tax Payment(F)	6,690	$1.91	$12,778	Direct

1-10 of 10 transactions

About Black Jeffrey G.

Black Jeffrey G. (SEC CIK 0001449439) files insider reports with the SEC as Chief Financial Officer of EXAGEN INC. (XGN) and SVP & Chief Financial Officer of STANDARD BIOTOOLS INC. (LAB).

Signal8 holds 9 ownership filings by Black Jeffrey G. (1 Form 3, 8 Form 4), filed between Sep 4, 2024 and Sep 2, 2026. Those filings report 10 transactions, from Aug 20, 2024 to Sep 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Black Jeffrey G.'s filings is in VISTA, CA.

Recent filings by Black Jeffrey G.

Sep 1, 2026: Grant or award of XGN shares (Form 4, code A).
Sep 1, 2026: Open-market sale of XGN shares (Form 4, code S).
Mar 12, 2026: Grant or award of XGN shares (Form 4, code A).
Feb 27, 2026: Grant or award of XGN shares (Form 4, code A).
Feb 24, 2026: Open-market sale of XGN shares (Form 4, code S).

Other insiders filing for EXAGEN INC. (XGN)

Nova Tina Susan, Director
Chernett Jorey, 10% Owner
ABALLI JOHN, President and CEO
Robertson Bruce C, Director
Kim Paul, Director
KAHN SCOTT D, Director

How to read Form 4 transaction codes