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 Q4 2024?

92 institutional investors reported THRD - THIRD HARMONIC BIO, INC. - Common Stock, par value $0.0001 per share for Q4 2024. Use the holders table for investor-level position and value details.

CUSIP: 88427A107

Q4 2024 13F Holders as of 31 Dec 2024

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 44,947,123
Total 13F value: $462,509,947
Share change: -1,116,770
SEC-reported price per share: $10.29
Number of holders: 92
Value change: -$20,519,618
Number of buys: 54
Number of sells: 31
Shares outstanding: 45,416,671

Security key

88427A107

Report period

Q4 2024

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

Atlas Venture Fund XI, L.P.

Disclosed value leader

Atlas Venture Life Scienc...

Comparable rows

0/15

Latest evidence

01 Nov 2024

3/4/5 13F Highest disclosed value: $147,801,489 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

Atlas Venture Life Science Advisors, LLC has the largest disclosed position value at $147.8M.

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 Atlas Venture Life Science Advisors, LLC's linked filing trail.

Disclosed position value Top 5

Atlas Venture Fund XI, L.P. $140.11M

ORBIMED ADVISORS LLC $78.31M

Atlas Venture Life Science Adviso... $147.8M

BVF INC/IL $59.16M

EcoR1 Capital, LLC $43.12M

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
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	13F 3/4/5 Company · Director, 10%+ Owner 13F 3/4/5	— denominator unverified	$78,306,412 5,779,071 shares	—	30 Sep 2024
Atlas Venture Life Science Advisors, LLC	13F Company 13F	— denominator unverified	$147,801,489 10,907,859 shares	—	30 Sep 2024
BVF INC/IL	13F Company 13F	— denominator unverified	$59,158,392 4,365,933 shares	—	30 Sep 2024
EcoR1 Capital, LLC	13F Company 13F	— denominator unverified	$43,122,116 3,182,444 shares	—	30 Sep 2024
GENERAL ATLANTIC, L.P.	13F Company 13F	— denominator unverified	$40,091,225 2,958,762 shares	—	30 Sep 2024

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 2024

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

Institutions

44,947,123

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 2024 vs Q2 2026 Across Filers

Q2 2026 holders

Q4 2024 holders

Holder diff

Investor	Q2 2026 Shares	Q4 2024 Shares	Share Diff	Share Chg %	Q2 2026 value	Q4 2024 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend