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Ken Griffin's TScan Therapeutics, Inc. (TCRX) position

Yes: as of Q1 2026, Ken Griffin holds 318K shares of TCRX worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was increased by 95.5%. First disclosed Q3 2021.
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Current value
an amount we cannot price
Shares held
318K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

TCRX price vs Griffin's position

1Y 3Y 5Y MAX
Dates
← Earlier —7 purchases, 2 sells0.60.81
Average closing price · filing quarter
—
Price range · filing quarter
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Every quarterly change

Every quarterly change
Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Added· Q1 2026 +156K
Quarter Q1 2026 Δ Own +95.5% Shares held 318K Filing date May 15, 2026
Q1 2026 Added· Q1 2026 +156K – +95.5% 318K May 15, 2026
Reduced· Q4 2025 −228K
Quarter Q4 2025 Δ Own −58.3% Shares held 163K Filing date Feb 17, 2026
Q4 2025 Reduced· Q4 2025 −228K – −58.3% 163K Feb 17, 2026
Added· Q3 2025 +172K
Quarter Q3 2025 Δ Own +78.4% Shares held 391K Filing date Nov 14, 2025
Q3 2025 Added· Q3 2025 +172K – +78.4% 391K Nov 14, 2025
Added· Q2 2025 +165K
Quarter Q2 2025 Δ Own +302.6% Shares held 219K Filing date Aug 14, 2025
Q2 2025 Added· Q2 2025 +165K – +302.6% 219K Aug 14, 2025
Reduced· Q1 2025 −88K
Quarter Q1 2025 Δ Own −61.9% Shares held 54K Filing date May 15, 2025
Q1 2025 Reduced· Q1 2025 −88K – −61.9% 54K May 15, 2025
New· Q4 2024 +143K
Quarter Q4 2024 Shares held 143K Filing date Feb 14, 2025
Q4 2024 New· Q4 2024 +143K – – 143K Feb 14, 2025
Added· Q2 2024 +147K
Quarter Q2 2024 Δ Own +1,281.8% Shares held 158K Filing date Aug 14, 2024
Q2 2024 Added· Q2 2024 +147K – +1,281.8% 158K Aug 14, 2024
New· Q1 2024 +11K
Quarter Q1 2024 Shares held 11K Filing date May 15, 2024
Q1 2024 New· Q1 2024 +11K – – 11K May 15, 2024
New· Q3 2021 +12K
Quarter Q3 2021 Shares held 12K Filing date Nov 15, 2021
Q3 2021 New· Q3 2021 +12K – – 12K Nov 15, 2021
Data through Q1 2026 · filed May 15, 2026
9 of 9

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Common questions

Does Ken Griffin own TCRX?

Yes. As of Q1 2026, Ken Griffin disclosed 318K shares of TCRX, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy TCRX?

Ken Griffin first disclosed a TCRX position in Q3 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell TCRX?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in TCRX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of TCRX does Ken Griffin own?

Ken Griffin disclosed 318K shares of TCRX as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for TCRX?

Ken Griffin began building the TCRX position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.