Eric J. Hyllengren

CIK: 0001966926

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (12.5%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (25.0%)

Compensation grants

Other (G, F, J, C, D, …)10 (62.5%)

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

Companies & Roles (3)

TNYA

Tenaya Therapeutics, Inc.

Officer

ZURA

Zura Bio Ltd

Officer

ATRA

Atara Biotherapeutics, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (16 total)

TNYA
Tenaya Therapeutics, Inc.
Jul 13, 2026
Award(A)
Stock Option (Right to buy)
Direct
1.7M shares-
ZURA
Zura Bio Ltd
Apr 1, 2026
Award(A)
Employee Share Option (Right to Buy)
Direct
340.9K shares-
ZURA
Zura Bio Ltd
Jul 15, 2025
Award(A)
Employee Share Option (Right to Buy)
Direct
672K shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
496 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
154 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
381 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
1.9K shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
460 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
543 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
331 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
9K shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
350 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 31, 2025
Disposition(D)
Employee Stock Option (Right to Buy)
Direct
262 shares-
ATRA
Atara Biotherapeutics, Inc.
Mar 3, 2025
Sale(S)
Direct
1.2K shares at avg. $7.00$8K
ATRA
Atara Biotherapeutics, Inc.
Jan 27, 2025
Award(A)
Direct
34.1K shares-
ATRA
Atara Biotherapeutics, Inc.
Nov 18, 2024
Sale(S)
Direct
1.4K shares at avg. $11.20$15K

		Type	Shares	Price		Ownership
Jul 13, 2026	TNYA Tenaya Therapeutics, Inc.	Award(A) Stock Option (Right to buy)	1,650,000	-	-	Direct
Apr 1, 2026	ZURA Zura Bio Ltd	Award(A) Employee Share Option (Right to Buy)	340,900	-	-	Direct
Jul 15, 2025	ZURA Zura Bio Ltd	Award(A) Employee Share Option (Right to Buy)	672,000	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	496	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	154	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	381	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	1,900	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	460	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	543	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	331	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	8,961	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	350	-	-	Direct
Mar 31, 2025	ATRA Atara Biotherapeutics, Inc.	Disposition(D) Employee Stock Option (Right to Buy)	262	-	-	Direct
Mar 3, 2025	ATRA Atara Biotherapeutics, Inc.	Sale(S)	1,211	$7.00	$8,473	Direct
Jan 27, 2025	ATRA Atara Biotherapeutics, Inc.	Award(A)	34,050	-	$0	Direct
Nov 18, 2024	ATRA Atara Biotherapeutics, Inc.	Sale(S)	1,364	$11.20	$15,274	Direct

1-16 of 16 transactions

About Hyllengren Eric J

Hyllengren Eric J (SEC CIK 0001966926) files insider reports with the SEC as Chief Financial Officer of Tenaya Therapeutics, Inc. (TNYA), Chief Financial Officer of Zura Bio Ltd (ZURA) and EVP, CFO and COO of Atara Biotherapeutics, Inc. (ATRA).

Signal8 holds 9 ownership filings by Hyllengren Eric J (2 Form 3, 7 Form 4), filed between Nov 20, 2024 and Jul 14, 2026. Those filings report 16 transactions, from Nov 18, 2024 to Jul 13, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Hyllengren Eric J's filings is in SOUTH SAN FRANCISCO, CA.

Recent filings by Hyllengren Eric J

Jul 13, 2026: Grant or award of TNYA derivative securities (Form 4, code A).
Apr 1, 2026: Grant or award of ZURA derivative securities (Form 4, code A).
Jul 15, 2025: Grant or award of ZURA derivative securities (Form 4, code A).
Mar 31, 2025: Disposition to issuer transactions of ATRA derivative securities (10 lines, Form 4, code D).
Mar 3, 2025: Open-market sale of ATRA shares (Form 4, code S).

Other insiders filing for Tenaya Therapeutics, Inc. (TNYA)

Ali Faraz, Chief Executive Officer
Tingley Whittemore, Chief Medical Officer
Williams R Sanders, Director
Walsh Jeffrey T., Director
Stehman-Breen Catherine, Director
Srivastava Deepak, Director

How to read Form 4 transaction codes