THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 per share (THRD)

Q: What does CUSIP 88427A107 represent in this 13F holders report?

CUSIP 88427A107 is the security identifier for THRD - THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held THRD - THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 per share in Q3 2025?

12 institutional investors reported THRD - THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 per share for Q3 2025. Use the holders table for investor-level position and value details.

CUSIP: 88427A107

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 499,952
Total 13F value: $1,192,160
Share change: -38,130,815
SEC-reported price per share: $5.38
Number of holders: 12
Value change: -$208,406,334
Number of buys: 5
Number of sells: 94
Shares outstanding: 45,416,671

Security key

88427A107

Report period

Q3 2025

Institutions

Top holders

THRD full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Third Harmonic Bio, Inc. SEC filings Third Harmonic Bio, Inc. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 88427A107

Newer quarter: Q4 2025

Recent filing periods:

Q3 2026 Q2 2026 Q1 2026 Q4 2025

Ownership snapshot

Top reported holders of THRD - THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 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

BML Investment Partners, ...

Disclosed value leader

Atlas Venture Fund XI, L.P.

Comparable rows

1/15

Latest evidence

30 Jun 2025

13D/G 3/4/5 13F Lead comparable stake: 8.2% 14 rows are not safely comparable across share classes. 13D/G row: BML Investment Partners, L.P. Showing 1-6 of 15 holder rows.

Quick read

BML Investment Partners, L.P. leads the comparable SEC ownership view at 8.2%.

1 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 BML Investment Partners, L.P.'s linked filing trail.

Comparable ownership Top 1

BML Investment Partners, L.P. 8.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

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

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BML Investment Partners, L.P.	13D/G 13D/G	8.2% Reported 13D/G · 11 Feb 2025	$19,179,460 3,724,167 shares	$0	11 Feb 2025
Atlas Venture Fund XI, L.P.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$140,112,473 9,798,075 shares	—	01 Nov 2024
ORBIMED ADVISORS LLC	3/4/5 13F Director, 10%+ Owner · Company 3/4/5 13F	— denominator unverified	$59,522,120 5,779,071 shares	—	19 Sep 2022
Atlas Venture Life Science Advisors, LLC	13F Company 13F	— denominator unverified	$56,484,413 10,402,286 shares	—	30 Jun 2025
BML Capital Management, LLC	13F Company 13F	— denominator unverified	$20,766,584 3,824,417 shares	—	30 Jun 2025
Nantahala Capital Management, LLC	13F Company 13F	— denominator unverified	$15,957,141 2,938,700 shares	—	30 Jun 2025

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 Q3 2025

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

Institutions

499,952

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 Q3 2025 vs Q2 2026 Across Filers

Q2 2026 holders

Q3 2025 holders

Holder diff

Investor	Q2 2026 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2025 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend