Turnstone Biologics Corp. - Common Stock, par value $0.001 per share (TSBX)

Q: What does CUSIP 90042W100 represent in this 13F holders report?

CUSIP 90042W100 is the security identifier for TSBX - Turnstone Biologics Corp. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held TSBX - Turnstone Biologics Corp. - Common Stock, par value $0.001 per share in Q4 2023?

36 institutional investors reported TSBX - Turnstone Biologics Corp. - Common Stock, par value $0.001 per share for Q4 2023. Use the holders table for investor-level position and value details.

CUSIP: 90042W100

Q4 2023 13F Holders as of 31 Dec 2023

Security type / class: Equity / Common Stock, par value $0.001 per share
Total 13F shares: 13,020,403
Total 13F value: $33,107,631
Share change: -79,693
SEC-reported price per share: $2.54
Number of holders: 36
Value change: -$291,399
Number of buys: 15
Number of sells: 11
Shares outstanding: 23,142,592

Security key

90042W100

Report period

Q4 2023

Institutions

Top holders

TSBX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2025 Turnstone Biologics Corp. SEC filings Turnstone Biologics Corp. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 90042W100

Newer quarter: Q3 2025

Recent filing periods:

Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of TSBX - Turnstone Biologics Corp. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

ORBIMED ADVISORS LLC

Disclosed value leader

ORBIMED ADVISORS LLC

Comparable rows

0/15

Latest evidence

30 Sep 2023

13F Highest disclosed value: $12,211,104 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

ORBIMED ADVISORS LLC has the largest disclosed position value at $12.21M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens ORBIMED ADVISORS LLC's linked filing trail.

Disclosed position value Top 5

ORBIMED ADVISORS LLC $12.21M

PFM Health Sciences, LP $6.01M

Point72 Asset Management, L.P. $3.28M

EVENTIDE ASSET MANAGEMENT, LLC $2.79M

CITADEL ADVISORS LLC $2.66M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
ORBIMED ADVISORS LLC	13F Company 13F	— denominator unverified	$12,211,104 3,099,265 shares	—	30 Sep 2023
PFM Health Sciences, LP	13F Company 13F	— denominator unverified	$6,007,357 1,524,710 shares	—	30 Sep 2023
Point72 Asset Management, L.P.	13F Company 13F	— denominator unverified	$3,283,332 833,333 shares	—	30 Sep 2023
EVENTIDE ASSET MANAGEMENT, LLC	13F Company 13F	— denominator unverified	$2,790,769 708,317 shares	—	30 Sep 2023
CITADEL ADVISORS LLC	13F Company 13F	— denominator unverified	$2,663,417 687,452 shares	—	30 Sep 2023
72 Investment Holdings, LLC	13F Company 13F	— denominator unverified	$2,166,925 549,981 shares	—	30 Sep 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

13,020,403

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2023 vs Q3 2025 Across Filers

Q3 2025 holders

Q4 2023 holders

Holder diff

Investor	Q3 2025 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend