John G. Houston

CIK: 0001753537

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (62.5%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (37.5%)

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)

NXTC

NextCure, Inc.

Director

ARVN

ARVINAS, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (8 total)

NXTC
NextCure, Inc.
Jun 18, 2026
Award(A)
Stock Option (Right to Buy)
Direct
2.3K shares-
ARVN
ARVINAS, INC.
Feb 27, 2026
Sale(S)
Direct
18.8K shares at avg. $13.24$249K
ARVN
ARVINAS, INC.
Feb 27, 2026
Sale(S)
Direct
4.7K shares at avg. $13.24$62K
ARVN
ARVINAS, INC.
Feb 27, 2026
Sale(S)
Direct
11.8K shares at avg. $13.14$155K
NXTC
NextCure, Inc.
Jun 20, 2025
Award(A)
Stock Option (Right to Buy)
Direct
18.7K shares-
ARVN
ARVINAS, INC.
Feb 24, 2025
Sale(S)
Direct
26.2K shares at avg. $16.75$439K
ARVN
ARVINAS, INC.
Feb 24, 2025
Sale(S)
Direct
5.2K shares at avg. $16.55$85K
ARVN
ARVINAS, INC.
Feb 13, 2025
Award(A)
Direct
152K shares-

		Type	Shares	Price		Ownership
Jun 18, 2026	NXTC NextCure, Inc.	Award(A) Stock Option (Right to Buy)	2,340	-	-	Direct
Feb 27, 2026	ARVN ARVINAS, INC.	Sale(S)	18,822	$13.24	$249,203	Direct
Feb 27, 2026	ARVN ARVINAS, INC.	Sale(S)	4,688	$13.24	$62,069	Direct
Feb 27, 2026	ARVN ARVINAS, INC.	Sale(S)	11,787	$13.14	$154,881	Direct
Jun 20, 2025	NXTC NextCure, Inc.	Award(A) Stock Option (Right to Buy)	18,700	-	-	Direct
Feb 24, 2025	ARVN ARVINAS, INC.	Sale(S)	26,184	$16.75	$438,582	Direct
Feb 24, 2025	ARVN ARVINAS, INC.	Sale(S)	5,154	$16.55	$85,299	Direct
Feb 13, 2025	ARVN ARVINAS, INC.	Award(A)	152,000	-	-	Direct

1-8 of 8 transactions

About Houston John G

Houston John G (SEC CIK 0001753537) files insider reports with the SEC as Director of NextCure, Inc. (NXTC) and Director of ARVINAS, INC. (ARVN).

Signal8 holds 5 ownership filings by Houston John G, all Form 4s, filed between Feb 18, 2025 and Jun 22, 2026. Those filings report 8 transactions, from Feb 13, 2025 to Jun 18, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Houston John G's filings is in BELTSVILLE, MD.

Recent filings by Houston John G

Jun 18, 2026: Grant or award of NXTC derivative securities (Form 4, code A).
Feb 27, 2026: Open-market sales of ARVN shares (3 lines, Form 4, code S).
Jun 20, 2025: Grant or award of NXTC derivative securities (Form 4, code A).
Feb 24, 2025: Open-market sales of ARVN shares (2 lines, Form 4, code S).
Feb 13, 2025: Grant or award of ARVN shares (Form 4, code A).

Other insiders filing for NextCure, Inc. (NXTC)

ADAR1 Capital Management, LLC, 10% Owner
Simcere Zaiming, Inc., Officer
Feigal Ellen, Director
Jones Elaine V, Director
Borgman Anne Elizabeth, Director
Webster Stephen W, Director

How to read Form 4 transaction codes