TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 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, par value $0.0001 per share used to aggregate holder disclosures.

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

54 institutional investors reported TCRX - TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 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

Type / Class: Equity / Voting Common Stock, par value $0.0001 per share
Shares outstanding: 52,382,313
Total 13F shares: 31,912,819
Share change: +1,237,449
Total reported value: $186,051,742
Price per share: $5.83
Number of holders: 54
Value change: +$7,213,515
Number of buys: 33
Number of sells: 5

Quarterly Holders Quick Answers

What is CUSIP 89854M101?
CUSIP 89854M101 identifies TCRX - TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 per share in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2024
Previous quarter: Q3 2023

Recent filing periods for CUSIP 89854M101:

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

Top shareholders of TCRX - TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
EcoR1 Capital, LLC	3/4/5 13F	10%+ Owner · Company	9.5% from 13F	5,000,000	$24,842,500	—	26 May 2023	3/4/5 13F
Lynx1 Capital Management LP	13F	Company	10%	5,224,600	$13,374,976	—	30 Sep 2023	13F
Christoph H. Westphal	3/4/5	10%+ Owner	— class O/S missing	2,193,472	$10,898,266	—	20 Jul 2021	3/4/5
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	7.6%	4,000,000	$10,240,000	—	30 Sep 2023	13F
BVF INC/IL	13F	Company	5.7%	2,989,474	$7,653,053	—	30 Sep 2023	13F
BAKER BROS. ADVISORS LP	13F	Company	5.3%	2,784,792	$7,129,068	—	30 Sep 2023	13F
VANGUARD GROUP INC	13F	Company	3.3%	1,752,594	$4,486,641	—	30 Sep 2023	13F
BlackRock Finance, Inc.	13F	Company	3.2%	1,680,449	$4,301,949	—	30 Sep 2023	13F
Deer Management Co. LLC	13F	Company	2.4%	1,245,505	$3,188,493	—	30 Sep 2023	13F
Alphabet Inc.	13F	Company	2.1%	1,077,080	$2,757,324	—	30 Sep 2023	13F
Simplify Asset Management Inc.	13F	Company	2%	1,046,916	$2,680,105	—	30 Sep 2023	13F
DC Funds, LP	13F	Company	1.2%	630,000	$1,612,800	—	30 Sep 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.59%	307,938	$788,582	—	30 Sep 2023	13F
MORGAN STANLEY	13F	Company	0.5%	259,447	$664,184	—	30 Sep 2023	13F
Timothy J. Barberich	3/4/5	Director	— mixed-class rows	135,286 mixed-class rows	$498,271	—	18 Dec 2023	3/4/5
STIFEL FINANCIAL CORP	13F	Company	0.22%	116,900	$299,264	—	30 Sep 2023	13F
NewEdge Wealth, LLC	13F	Company	0.17%	91,463	$234,145	—	30 Sep 2023	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.17%	88,300	$226,048	—	30 Sep 2023	13F
NORTHERN TRUST CORP	13F	Company	0.14%	71,976	$184,259	—	30 Sep 2023	13F
STATE STREET CORP	13F	Company	0.08%	41,700	$106,752	—	30 Sep 2023	13F
DC Investments Management, LLC	13F	Company	0.07%	35,563	$91,041	—	30 Sep 2023	13F
LETKO, BROSSEAU & ASSOCIATES INC	13F	Company	0.06%	32,400	$82,944	—	30 Sep 2023	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.04%	19,212	$49,183	—	30 Sep 2023	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.03%	17,700	$45,000	—	30 Sep 2023	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.03%	16,915	$43,302	—	30 Sep 2023	13F
Pale Fire Capital SE	13F	Company	0.03%	16,575	$42,432	—	30 Sep 2023	13F
Privium Fund Management (UK) Ltd	13F	Company	0.03%	15,825	$41,462	—	30 Sep 2023	13F
Aries Wealth Management	13F	Company	0.02%	10,000	$35,300	—	30 Sep 2023	13F
Waldron Private Wealth LLC	13F	Company	0.02%	10,000	$25,600	—	30 Sep 2023	13F
Qube Research & Technologies Ltd	13F	Company	0%	2,410	$6,170	—	30 Sep 2023	13F
UBS Group AG	13F	Company	0%	1,115	$2,854	—	30 Sep 2023	13F
ATLAS CAPITAL ADVISORS INC.	13F	Company	0%	896	$2,293	—	30 Sep 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0%	286	$732	—	30 Sep 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0%	200	$512	—	30 Sep 2023	13F
Brian M. Silver	3/4/5	Chief Financial Officer	— class O/S missing	632,500	—	—	13 Jun 2023	3/4/5
Debora Barton	3/4/5	Chief Medical Officer	— class O/S missing	430,000	—	—	13 Jun 2023	3/4/5
David P. Southwell	3/4/5	Chief Executive Officer, Director	— class O/S missing	100,000	—	—	02 Feb 2023	3/4/5
William Desmarais	3/4/5	Chief Business Officer	— class O/S missing	30,000	—	—	25 Jul 2022	3/4/5
Ittai Harel	3/4/5	Director	— class O/S missing	9,146	—	—	01 Jun 2022	3/4/5

Institutional Holders of TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 per share (TCRX) as of Q4 2023

As of 31 Dec 2023, TScan Therapeutics, Inc. - Voting Common Stock, par value $0.0001 per share (TCRX) was held by 54 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 31,912,819 shares. The largest 10 holders included Lynx1 Capital Management LP, EcoR1 Capital, LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., BVF INC/IL, BAKER BROS. ADVISORS LP, Propel Bio Management, LLC, VANGUARD GROUP INC, BlackRock Inc., Deer Management Co. LLC, and Alphabet Inc.. This page lists 54 institutional shareholders reporting positions in this security for the Q4 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

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 Diff $	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.