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TScan Therapeutics, Inc.

TCRX Net buying
CIK 0001783328 #4673 in the set updated 21 Sep 2026
Bought (120 mo)
$30.36M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$1.02M
$0.00 on a plan · $952.12K straight out of an exercise
Sold at will
$63.95K
3 of 4 sales
Net
+$29.34M
+$30.29M against sales at will

By person

10 insiders · 44 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
BAKER BROS. ADVISORS LP entity
Director
$23.93M (10)
—
+$23.93M
3,848,885
3.0%
$3.46M
+261.7%
Lynx1 Capital Management LP entity
10% owner
$3.64M (8)
$63.95K (3)
+$3.58M
8,019,148
6.2%
$7.21M
+55.4%
Westphal Christoph H
10% owner
$2.00M (1)
—
+$2.00M
1,036,585
0.798%
$931.79K
—
ZDRAVESKI ZORAN
See Remarks
$35.26K (1)
$952.12K (1) scheduled
−$916.86K
4,716
0.004%
$4.24K
−37.1%
BARBERICH TIMOTHY J
Director
$242.02K (3)
—
+$242.02K
67,027
0.052%
$60.25K
—
SOUTHWELL DAVID P
Chief Executive Officer
$185.89K (3)
—
+$185.89K
171,569
0.132%
$154.22K
+97.4%
Silver Brian M.
Chief Financial Officer
$156.71K (6)
—
+$156.71K
32,885
0.025%
$29.56K
—
Klencke Barbara
Director
$107.95K (4)
—
+$107.95K
45,000
0.035%
$40.45K
+80.0%
MacBeath Gavin
Chief Executive Officer
$31.10K (2)
—
+$31.10K
49,767
0.038%
$44.74K
+11.2%
Desmarais William
Chief Business Officer
$22.71K (1)
—
+$22.71K
2,500
0.002%
$2.25K
—

Individual transactions

44
Insider
Date
Role
Action
Shares
Price
Amount
Lynx1 Capital Management LP
23 Dec 2025
10% owner
Buy indirect
6,232
$0.90
$5.60K
Lynx1 Capital Management LP
22 Dec 2025
10% owner
Buy indirect
75,500
$0.90
$67.95K
Lynx1 Capital Management LP
19 Dec 2025
10% owner
Buy indirect
80,069
$0.90
$71.97K
Lynx1 Capital Management LP
20 May 2025
10% owner
Buy indirect
1,200,000
$1.20
$1.44M
Lynx1 Capital Management LP
19 May 2025
10% owner
Buy indirect
1,388,794
$1.20
$1.67M
Lynx1 Capital Management LP
13 Dec 2024
10% owner
Buy indirect
100,000
$2.90
$290.14K
Lynx1 Capital Management LP
12 Dec 2024
10% owner
Buy indirect
31,800
$3.01
$95.63K
Lynx1 Capital Management LP
15 Nov 2024
10% owner
Buy indirect
947
$4.34
$4.11K
Klencke Barbara
23 Sep 2024
Director
Buy
5,000
$5.29
$26.45K
Klencke Barbara
26 Aug 2024
Director
Buy
5,000
$5.53
$27.65K
ZDRAVESKI ZORAN
23 Aug 2024
See Remarks
Sold after exercise
164,686
$5.78
$952.12K
Klencke Barbara
23 Aug 2024
Director
Buy
5,000
$5.69
$28.45K
BARBERICH TIMOTHY J
19 Dec 2023
Director
Buy
317
$4.97
$1.58K
BARBERICH TIMOTHY J
18 Dec 2023
Director
Buy
28,830
$4.89
$140.88K
Klencke Barbara
14 Dec 2023
Director
Buy
5,000
$5.08
$25.40K
BARBERICH TIMOTHY J
2 Jun 2023
Director
Buy
37,880
$2.63
$99.56K
Lynx1 Capital Management LP
31 May 2023
10% owner
Sell indirect
400
$2.51
$1.00K
Lynx1 Capital Management LP
31 May 2023
10% owner
Sell indirect
15,000
$2.52
$37.80K
Lynx1 Capital Management LP
31 May 2023
10% owner
Sell indirect
10,000
$2.51
$25.15K
Silver Brian M.
28 Dec 2022
Chief Financial Officer
Buy
3,158
$1.56
$4.94K
Silver Brian M.
27 Dec 2022
Chief Financial Officer
Buy
2,842
$1.50
$4.28K
SOUTHWELL DAVID P
18 May 2022
Chief Executive Officer
Buy
10,000
$3.55
$35.48K
SOUTHWELL DAVID P
18 May 2022
Chief Executive Officer
Buy
15,000
$3.62
$54.34K
BAKER BROS. ADVISORS LP
11 May 2022
Director
Buy indirect
22,983
$1.99
$45.63K
BAKER BROS. ADVISORS LP
11 May 2022
Director
Buy indirect
2,882
$1.99
$5.72K
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
758,094
$1.95
$1.48M
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
95,060
$1.95
$185.37K
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
101,831
$1.93
$196.96K
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
12,769
$1.93
$24.70K
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
325,373
$1.70
$553.13K
BAKER BROS. ADVISORS LP
10 May 2022
Director
Buy indirect
40,800
$1.70
$69.36K
Silver Brian M.
24 Mar 2022
Chief Financial Officer
Buy
15,000
$3.40
$50.98K
SOUTHWELL DAVID P
23 Dec 2021
Chief Executive Officer
Exercised, kept
48,670
$1.97
$95.88K
ZDRAVESKI ZORAN
23 Sep 2021
Chief Legal Officer
Buy
4,716
$7.48
$35.26K
MacBeath Gavin
21 Sep 2021
Chief Scientific Officer
Buy
57
$6.19
$352.72
Silver Brian M.
21 Sep 2021
Chief Financial Officer
Buy
5,000
$6.32
$31.59K
MacBeath Gavin
20 Sep 2021
Chief Scientific Officer
Buy
4,943
$6.22
$30.74K
Silver Brian M.
9 Sep 2021
Chief Financial Officer
Buy
5,885
$8.48
$49.93K
SOUTHWELL DAVID P
8 Sep 2021
Chief Executive Officer
Buy
11,000
$8.73
$96.07K
Desmarais William
27 Aug 2021
Chief Business Officer
Buy
2,500
$9.08
$22.71K
Silver Brian M.
20 Jul 2021
Chief Financial Officer
Buy
1,000
$15.00
$15.00K
BAKER BROS. ADVISORS LP
20 Jul 2021
Director
Buy indirect
1,320,302
$15.00
$19.80M
BAKER BROS. ADVISORS LP
20 Jul 2021
Director
Buy indirect
104,698
$15.00
$1.57M
Westphal Christoph H
20 Jul 2021
10% owner
Buy indirect
133,333
$15.00
$2.00M

What was left out

Form 4 filings counted 95
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 16
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 1
Sales at will 3
Transactions with no price 0
Shares from compensation/vesting 1,384,620
History held since 16 Jul 2021