Svlsf Vi, LLC bought $1.3M of TRex Bio stock

By AlphaYouPublished Oct 13, 2026Form 4

Stocks in this disclosure

Reported activity

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

Reporting filer

Svlsf Vi, LLC reported buying 92,857 shares of TRex Bio, Inc. for about $1.3M ($14.00 a share on average). Form 4 filed Oct 13, 2026 lists 12 entries.

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Disclosed: Oct 13, 2026

Reported details

12 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-08	P	Purchase	89783	14.00	214,869	5 days	Filed terms security Title: Common Stock transaction Date: 2026-10-08 deemed Execution Date: transaction Form Type: 4 transaction Code: P equity Swap Involved: 0 transaction Timeliness: transaction Shares: 89783 transaction Price Per Share: 14.00 transaction Acquired Disposed Code: A shares Owned Following Transaction: 214869 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI, L.P. id: F1 id: F5
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	1574074	0	1,788,943	0 days	Filed terms security Title: Common Stock transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 1574074 transaction Price Per Share: 0 transaction Acquired Disposed Code: A shares Owned Following Transaction: 1788943 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI, L.P. id: F1
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	475411	0	2,264,354	0 days	Filed terms security Title: Common Stock transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 475411 transaction Price Per Share: 0 transaction Acquired Disposed Code: A shares Owned Following Transaction: 2264354 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI, L.P. id: F1
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-08	P	Purchase	3074	14.00	7,356	5 days	Filed terms security Title: Common Stock transaction Date: 2026-10-08 deemed Execution Date: transaction Form Type: 4 transaction Code: P equity Swap Involved: 0 transaction Timeliness: transaction Shares: 3074 transaction Price Per Share: 14.00 transaction Acquired Disposed Code: A shares Owned Following Transaction: 7356 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P. id: F2 id: F6
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	53892	0	61,248	0 days	Filed terms security Title: Common Stock transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 53892 transaction Price Per Share: 0 transaction Acquired Disposed Code: A shares Owned Following Transaction: 61248 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P. id: F2
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	16277	0	77,525	0 days	Filed terms security Title: Common Stock transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 16277 transaction Price Per Share: 0 transaction Acquired Disposed Code: A shares Owned Following Transaction: 77525 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P. id: F2
Common Stock	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	669939	0	669,939	0 days	Filed terms security Title: Common Stock transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 669939 transaction Price Per Share: 0 transaction Acquired Disposed Code: A shares Owned Following Transaction: 669939 direct Or Indirect Ownership: I nature Of Ownership: By SV Trex Coinvestment, L.P. id: F3
Series A Preferred Stock (derivative)	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	1574074	0	0	0 days	Filed terms security Title: Series A Preferred Stock id: F4 transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 1574074 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 id: F4 underlying Security Title: Common Stock underlying Security Shares: 1574074 shares Owned Following Transaction: 0 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI, L.P. id: F1
Series B Preferred Stock (derivative)	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	475411	0	0	0 days	Filed terms security Title: Series B Preferred Stock id: F4 transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 475411 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 id: F4 underlying Security Title: Common Stock underlying Security Shares: 475411 shares Owned Following Transaction: 0 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI, L.P. id: F1
Series A Preferred Stock (derivative)	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	53892	0	0	0 days	Filed terms security Title: Series A Preferred Stock id: F4 transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 53892 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 id: F4 underlying Security Title: Common Stock underlying Security Shares: 53892 shares Owned Following Transaction: 0 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P. id: F2
Series B Preferred Stock (derivative)	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	16277	0	0	0 days	Filed terms security Title: Series B Preferred Stock id: F4 transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 16277 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 id: F4 underlying Security Title: Common Stock underlying Security Shares: 16277 shares Owned Following Transaction: 0 direct Or Indirect Ownership: I nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P. id: F2
Series B Preferred Stock (derivative)	SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.	2026-10-13	C	Conversion	669939	0	0	0 days	Filed terms security Title: Series B Preferred Stock id: F4 transaction Date: 2026-10-13 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 669939 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 id: F4 underlying Security Title: Common Stock underlying Security Shares: 669939 shares Owned Following Transaction: 0 direct Or Indirect Ownership: I nature Of Ownership: By SV Trex Coinvestment, L.P. id: F3

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-08
Code: P
Action: Purchase
Quantity: 89783
Price: 14.00
Following holdings: 214,869
Reporting delay: 5 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-08
deemed Execution Date:
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 89783
transaction Price Per Share: 14.00
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 214869
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1
id: F5

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 1574074
Price: 0
Following holdings: 1,788,943
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1574074
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 1788943
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 475411
Price: 0
Following holdings: 2,264,354
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 475411
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 2264354
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-08
Code: P
Action: Purchase
Quantity: 3074
Price: 14.00
Following holdings: 7,356
Reporting delay: 5 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-08
deemed Execution Date:
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 3074
transaction Price Per Share: 14.00
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 7356
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2
id: F6

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 53892
Price: 0
Following holdings: 61,248
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 53892
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 61248
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 16277
Price: 0
Following holdings: 77,525
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 16277
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 77525
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Common Stock

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 669939
Price: 0
Following holdings: 669,939
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 669939
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 669939
direct Or Indirect Ownership: I
nature Of Ownership: By SV Trex Coinvestment, L.P.
id: F3

Series A Preferred Stock (derivative)

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 1574074
Price: 0
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series A Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1574074
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 1574074
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Series B Preferred Stock (derivative)

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 475411
Price: 0
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 475411
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 475411
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Series A Preferred Stock (derivative)

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 53892
Price: 0
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series A Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 53892
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 53892
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Series B Preferred Stock (derivative)

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 16277
Price: 0
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 16277
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 16277
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Series B Preferred Stock (derivative)

Owner: SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.
Date: 2026-10-13
Code: C
Action: Conversion
Quantity: 669939
Price: 0
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 669939
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 669939
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Trex Coinvestment, L.P.
id: F3

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
SVLSF VI, LLC: 10% owner.
SV Life Sciences Fund VI (GP), L.P.: 10% owner.
SV Life Sciences Fund VI, L.P.: 10% owner.
F1: The shares are held directly by SV Life Sciences Fund VI, L.P. ("SV Fund VI"). SV Life Sciences Fund VI (GP), L.P. (the "GP LP") is the general partner of SV Fund VI, and SVLSF VI, LLC ("SVLSF") is the general partner of GP LP. Investment and voting decisions of SV Fund VI are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership except to the extent of its pecuniary interest, and this report is not an admission of beneficial ownership for any other purpose.
F2: The shares are held directly by SV Life Sciences Fund VI Strategic Partners, L.P. ("SV Strategic Partners VI"). GP LP is the general partner of SV Strategic Partners VI, and SVLSF is the general partner of GP LP. Investment and voting decisions of SV Strategic Partners VI are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership except to the extent of its pecuniary interest, and this report is not an admission of beneficial ownership for any other purpose.
F3: The shares are held directly by SV Trex Coinvestment, L.P. ("SV Coinvestment"). GP LP is the general partner of SV Coinvestment, and SVLSF is the general partner of GP LP. Investment and voting decisions of SV Coinvestment are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership and this report is not an admission of beneficial ownership for any other purpose.
F4: On October 13, 2026, 3.8649 shares of preferred stock automatically converted into one share of common stock upon the closing of the issuer's initial public offering, for no additional consideration. The preferred stock has no expiration date.
F5: Represents shares purchased by SV Fund VI in the issuer's initial public offering.
F6: Represents shares purchased by SV Strategic Partners VI in the issuer's initial public offering.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-08

Purchase

89783

14.00

214,869

5 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-08
deemed Execution Date:
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 89783
transaction Price Per Share: 14.00
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 214869
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1
id: F5

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

1574074

1,788,943

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1574074
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 1788943
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

475411

2,264,354

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 475411
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 2264354
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-08

Purchase

3074

14.00

7,356

5 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-08
deemed Execution Date:
transaction Form Type: 4
transaction Code: P
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 3074
transaction Price Per Share: 14.00
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 7356
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2
id: F6

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

53892

61,248

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 53892
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 61248
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

16277

77,525

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 16277
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 77525
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Common Stock

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

669939

669,939

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 669939
transaction Price Per Share: 0
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 669939
direct Or Indirect Ownership: I
nature Of Ownership: By SV Trex Coinvestment, L.P.
id: F3

Series A Preferred Stock (derivative)

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

1574074

0 days

Filed terms

security Title: Series A Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1574074
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 1574074
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Series B Preferred Stock (derivative)

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

475411

0 days

Filed terms

security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 475411
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 475411
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI, L.P.
id: F1

Series A Preferred Stock (derivative)

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

53892

0 days

Filed terms

security Title: Series A Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 53892
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 53892
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Series B Preferred Stock (derivative)

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

16277

0 days

Filed terms

security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 16277
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 16277
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Life Sciences Fund VI Strategic Partners, L.P.
id: F2

Series B Preferred Stock (derivative)

SVLSF VI, LLC; SV Life Sciences Fund VI (GP), L.P.; SV Life Sciences Fund VI, L.P.

2026-10-13

Conversion

669939

0 days

Filed terms

security Title: Series B Preferred Stock
id: F4
transaction Date: 2026-10-13
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 669939
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
id: F4
underlying Security Title: Common Stock
underlying Security Shares: 669939
shares Owned Following Transaction: 0
direct Or Indirect Ownership: I
nature Of Ownership: By SV Trex Coinvestment, L.P.
id: F3

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

SVLSF VI, LLC: 10% owner.

SV Life Sciences Fund VI (GP), L.P.: 10% owner.

SV Life Sciences Fund VI, L.P.: 10% owner.

F1: The shares are held directly by SV Life Sciences Fund VI, L.P. ("SV Fund VI"). SV Life Sciences Fund VI (GP), L.P. (the "GP LP") is the general partner of SV Fund VI, and SVLSF VI, LLC ("SVLSF") is the general partner of GP LP. Investment and voting decisions of SV Fund VI are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership except to the extent of its pecuniary interest, and this report is not an admission of beneficial ownership for any other purpose.

F2: The shares are held directly by SV Life Sciences Fund VI Strategic Partners, L.P. ("SV Strategic Partners VI"). GP LP is the general partner of SV Strategic Partners VI, and SVLSF is the general partner of GP LP. Investment and voting decisions of SV Strategic Partners VI are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership except to the extent of its pecuniary interest, and this report is not an admission of beneficial ownership for any other purpose.

F3: The shares are held directly by SV Trex Coinvestment, L.P. ("SV Coinvestment"). GP LP is the general partner of SV Coinvestment, and SVLSF is the general partner of GP LP. Investment and voting decisions of SV Coinvestment are made by the investment committee of SVLSF. Each of GP LP and SVLSF disclaims beneficial ownership and this report is not an admission of beneficial ownership for any other purpose.

F4: On October 13, 2026, 3.8649 shares of preferred stock automatically converted into one share of common stock upon the closing of the issuer's initial public offering, for no additional consideration. The preferred stock has no expiration date.

F5: Represents shares purchased by SV Fund VI in the issuer's initial public offering.

F6: Represents shares purchased by SV Strategic Partners VI in the issuer's initial public offering.