TScan Therapeutics, Inc. - Voting Common Stock, $0.0001 par value per share (TCRX)

Q: What does CUSIP 89854M101 represent in this 13F holders report?

CUSIP 89854M101 is the security identifier for TCRX - TScan Therapeutics, Inc. - Voting Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held TCRX - TScan Therapeutics, Inc. - Voting Common Stock, $0.0001 par value per share in Q4 2023?

54 institutional investors reported TCRX - TScan Therapeutics, Inc. - Voting Common Stock, $0.0001 par value per share for Q4 2023. Use the holders table for investor-level position and value details.

CUSIP: 89854M101

Q4 2023 13F Holders as of 31 Dec 2023

Security type / class: Equity / Voting Common Stock, $0.0001 par value per share
Shares outstanding: 55,838,719
Total 13F shares: 31,912,819
Share change: +1,237,449
Total reported value: $186,051,742
Reported price per share: $5.83
Number of holders: 54
Value change: +$7,213,515
Number of buys: 33
Number of sells: 5

Security key

89854M101

Report period

Q4 2023

Institutions

Top holders

TCRX full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2024 Previous quarter: Q3 2023 TScan Therapeutics, Inc. SEC filings TScan Therapeutics, Inc. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 89854M101

Newer quarter: Q1 2024 Previous quarter: Q3 2023

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top reported holders of TCRX - TScan Therapeutics, Inc. - Voting Common Stock, $0.0001 par value 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.

Lead holder

Lynx1 Capital Management LP

13D/G signal

—

Evidence rows

Latest as of

30 Sep 2023

13F 3/4/5 Lead comparable stake: 9.4% Showing 1-6 of 15 holder rows.

Rank 1 holder

Lynx1 Capital Management LP

13F

Ownership: 9.4%
Position: $13.37M

13F

Rank 2 holder

EcoR1 Capital, LLC

3/4/5 13F

Ownership: 9%
Position: $24.84M

3/4/5 13F

Rank 3 holder

ADAGE CAPITAL PARTNERS GP, L.L.C.

13F

Ownership: 7.2%
Position: $10.24M

13F

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Lynx1 Capital Management LP	13F Company 13F	9.4%	$13,374,976 5,224,600 shares	—	30 Sep 2023
EcoR1 Capital, LLC	3/4/5 13F 10%+ Owner · Company 3/4/5 13F	9% from 13F	$24,842,500 5,000,000 shares	—	26 May 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	7.2%	$10,240,000 4,000,000 shares	—	30 Sep 2023
BVF INC/IL	13F Company 13F	5.4%	$7,653,053 2,989,474 shares	—	30 Sep 2023
BAKER BROS. ADVISORS LP	13F Company 13F	5%	$7,129,068 2,784,792 shares	—	30 Sep 2023
VANGUARD GROUP INC	13F Company 13F	3.1%	$4,486,641 1,752,594 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

31,912,819

Rows available

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

^* 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 failed the local validity check.

Compare Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

Q4 2023 holders

Holder diff

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

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend