Insider trading

Period: 120 months Stock: TLSI + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

52 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

52 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

52 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

52 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
52 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
52 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

52 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
5 Oct 2026
Marshak Richard Chief Commercial Officer
Sold at will
$1.43K 325 at 4.39
0.3%
Not planned
5 Oct 2026
Stevens Jennifer Chief Regulatory Officer
Sold at will
$1.39K 316 at 4.39
0.3%
Not planned
5 Oct 2026
Cox Bryan F. Chief of Research
Sold at will
$1.30K 296 at 4.39
0.2%
Not planned
15 May 2026
Bought
$1.03M 410,000 at 2.50
49.4%
Largest buy in 3 yrs
15 May 2026
Stansky Michael P Director · indirect
Bought
$500.00K 200,000 at 2.50
100%
+100% of stake
15 May 2026
Wahlstrom Mats Director
Bought
$151.80K 60,000 at 2.53
68.5%
Largest buy in 3 yrs
15 May 2026
Szela Mary T CEO and President
Bought
$102.78K 39,682 at 2.59
3.9%
15 May 2026
Gordon Gary B. Director
Bought
$24.60K 10,000 at 2.46
16.0%
15 May 2026
Patience David Chief Financial Officer
Bought
$17.25K 7,100 at 2.43
2.6%
Largest buy in 3 yrs
15 May 2026
Marshak Richard Chief Commercial Officer
Sold at will
$1.45K 543 at 2.67
0.4%
Not planned
17 Mar 2026
Szela Mary T CEO and President
Sold at will
$61.38K 15,944 at 3.85
2.1%
Not planned
16 Mar 2026
Stevens Jennifer Chief Regulatory Officer
Sold at will
$3.19K 774 at 4.12
0.6%
Not planned
16 Mar 2026
Cox Bryan F. Chief of Research
Sold at will
$2.39K 579 at 4.12
0.4%
Not planned
16 Mar 2026
Marshak Richard Chief Commercial Officer
Sold at will
$1.73K 419 at 4.12
0.4%
Not planned
16 Mar 2026
Devlin Jodi Chief of Clinical Operations
Sold at will
$1.12K 273 at 4.12
0.3%
Not planned
12 Mar 2026
Devlin Jodi Chief of Clinical Operations
Sold at will
$7.25K 1,772 at 4.09
1.8%
Not planned
12 Mar 2026
Marshak Richard Chief Commercial Officer
Sold at will
$6.50K 1,589 at 4.09
1.4%
Not planned
12 Mar 2026
Stevens Jennifer Chief Regulatory Officer
Sold at will
$6.35K 1,552 at 4.09
1.2%
Not planned
12 Mar 2026
Cox Bryan F. Chief of Research
Sold at will
$6.00K 1,467 at 4.09
0.9%
Not planned
11 Mar 2026
Szela Mary T CEO and President
Sold at will
$18.00K 4,358 at 4.13
0.6%
Not planned
11 Mar 2026
Marshak Richard Chief Commercial Officer
Sold at will
$5.98K 1,449 at 4.13
1.3%
Not planned
11 Mar 2026
Stevens Jennifer Chief Regulatory Officer
Sold at will
$4.97K 1,204 at 4.13
0.9%
Not planned
11 Mar 2026
Devlin Jodi Chief of Clinical Operations
Sold at will
$4.80K 1,162 at 4.13
1.2%
Not planned
11 Mar 2026
Cox Bryan F. Chief of Research
Sold at will
$4.70K 1,138 at 4.13
0.7%
Not planned
23 Feb 2026
Bought
$999.99K 243,900 at 4.10
44.9%
First buy on file
23 Feb 2026
Stansky Michael P Director · indirect
Bought
$480.51K 117,198 at 4.10
142%
First buy on file
23 Feb 2026
Szela Mary T CEO and President
Bought
$125.00K 30,487 at 4.10
4.1%
Largest buy in 3 yrs
23 Feb 2026
Valle William Director
Bought
$125.00K 30,487 at 4.10
opened
First buy on file
23 Feb 2026
Gordon Gary B. Director
Bought
$40.00K 9,756 at 4.10
opened
First buy on file
23 Feb 2026
Patience David Chief Financial Officer
Bought
$14.99K 3,657 at 4.10
1.4%
First buy on file
19 May 2025
Stevens Jennifer Chief Regulatory Officer
Sold at will
$45.09K 8,704 at 5.18
10.1%
Not planned
19 May 2025
Marshak Richard Chief Commercial Officer
Sold at will
$34.17K 6,597 at 5.18
8.7%
Not planned
19 May 2025
Devlin Jodi Chief of Clinical Operations
Sold at will
$24.68K 4,764 at 5.18
8.3%
Not planned
19 May 2025
Cox Bryan F. Chief of Research
Sold at will
$24.68K 4,764 at 5.18
3.8%
Not planned
5 Feb 2025
Young James Emmett Chief Financial Officer · indirect
Bought
$33.90K 6,000 at 5.65
25.0%
+25% of stake
30 Jan 2025
Szela Mary T CEO AND PRESIDENT
Bought
$26.45K 5,010 at 5.28
1.1%
29 Jan 2025
Szela Mary T CEO AND PRESIDENT
Bought
$25.30K 5,030 at 5.03
1.2%
28 Jan 2025
Murphy Sean Chief Manuf, Strategy&Bus Dev. · indirect
Bought
$77.55K 15,000 at 5.17
8.2%
28 Jan 2025
Szela Mary T CEO AND PRESIDENT
Bought
$24.15K 4,716 at 5.12
1.1%
27 Jan 2025
Young James Emmett Chief Financial Officer · indirect
Bought
$129.60K 24,000 at 5.40
opened
First buy on file
27 Jan 2025
Murphy Sean Chief Manuf, Strategy&Bus Dev. · indirect
Bought
$79.65K 15,000 at 5.31
8.9%
First buy on file
27 Jan 2025
Szela Mary T CEO AND PRESIDENT
Bought
$26.16K 4,826 at 5.42
1.1%
17 Dec 2024
Bought
$250.00K 62,972 at 3.97
1.0%
First buy on file
10 Dec 2024
Desai Arjun JJ Director
Sold at will
$110.70K 30,000 at 3.69
10.8%
Not planned
22 Nov 2024
Wahlstrom Mats Director
Bought
$22.75K 5,000 at 4.55
46.6%
+47% of stake
21 Nov 2024
Wahlstrom Mats Director
Bought
$38.57K 8,687 at 4.44
426%
Largest buy in 3 yrs
20 Nov 2024
Wahlstrom Mats Director
Bought
$8.49K 2,040 at 4.16
opened
First buy on file
5 Oct 2024
Cox Bryan F. CHIEF SCIENTIFIC & MANUFACT.
Sold at will
$1.39K 314 at 4.44
0.4%
Not planned
13 Sep 2024
Szela Mary T CEO AND PRESIDENT
Bought 2×
$36.25K 7,295 at 4.97
1.9%
12 Sep 2024
Szela Mary T CEO AND PRESIDENT
Bought
$39.10K 7,520 at 5.20
2.0%
Largest buy in 3 yrs
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