Black Jeffrey G.
SEC insider (Form 3/4/5 filer). CIK 0001449439. Chief Financial Officer at EXAGEN INC. (XGN) and 1 other issuer. 10 reported Form 4/5 transactions since Sep 2024; latest on Sep 1, 2026. Located in VISTA, CA.
Companies Black Jeffrey G. has filed insider reports for
- EXAGEN INC. (XGN): Officer, Chief Financial Officer
- STANDARD BIOTOOLS INC. (LAB): Officer, SVP & Chief Financial Officer
Black Jeffrey G.
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
Discretionary Trading P&L
Holdings
Transaction History (10 total)
- Sep 1, 2026XGN
EXAGEN INC.
AwardDirect1.6K shares at avg. $3.02$5K - Sep 1, 2026XGN
EXAGEN INC.
SaleDirect20.6K shares at avg. $7.22$149K - Mar 12, 2026XGN
EXAGEN INC.
AwardDirect75K shares at avg. $3.16$237K - Feb 27, 2026XGN
EXAGEN INC.
AwardDirect1.5K shares at avg. $3.08$5K - Feb 24, 2026XGN
EXAGEN INC.
SaleDirect1.6K shares at avg. $3.61$6K - Sep 2, 2025XGN
EXAGEN INC.
SaleDirect20.5K shares at avg. $9.79$200K - Feb 21, 2025XGN
EXAGEN INC.
AwardDirect15K shares- - Nov 15, 2024XGN
EXAGEN INC.
PurchaseDirect22.3K shares at avg. $2.98$66K - Sep 1, 2024XGN
EXAGEN INC.
AwardDirect225K shares- - Aug 20, 2024LAB
STANDARD BIOTOOLS INC.
Tax PaymentDirect6.7K shares at avg. $1.91$13K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 1, 2026 |  XGN EXAGEN INC. | Award | 1,571 | $3.02 | $4,740 | Direct |
| Sep 1, 2026 | XGN EXAGEN INC. | Sale | 20,614 | $7.22 | $148,782 | Direct |
| Mar 12, 2026 | XGN EXAGEN INC. | Award | 75,000 | $3.16 | $237,000 | Direct |
| Feb 27, 2026 | XGN EXAGEN INC. | Award | 1,511 | $3.08 | $4,649 | Direct |
| Feb 24, 2026 | XGN EXAGEN INC. | Sale | 1,584 | $3.61 | $5,718 | Direct |
| Sep 2, 2025 | XGN EXAGEN INC. | Sale | 20,466 | $9.79 | $200,362 | Direct |
| Feb 21, 2025 | XGN EXAGEN INC. | Award | 15,000 | - | - | Direct |
| Nov 15, 2024 | XGN EXAGEN INC. | Purchase | 22,298 | $2.98 | $66,448 | Direct |
| Sep 1, 2024 | XGN EXAGEN INC. | Award | 225,000 | - | $0 | Direct |
| Aug 20, 2024 |  LAB STANDARD BIOTOOLS INC. | Tax Payment | 6,690 | $1.91 | $12,778 | Direct |
1-10 of 10 transactions