InsiderClue

Every filing, one decision per row.

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One row for every decision an insider filed. Open-market buying and selling only. Vesting, grants and the shares withheld to pay the tax on them are not decisions.

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Companies 1/25
SION
Result 38 decisions over 12 months
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Direction ?
Both38 Bought0 Sold38
Sort by ?
Most recent Largest amount Share of holding
Window ?
1 mo 12 mo 120 mo
Plan ?
Any Discretionary Scheduled (10b5-1) Not stated
Minimum amount ?
Any $100K $1M $10M $100M $500M
Share of their own holding ?
What the chief executive holds ?
Company: SION Minimum: $1M
Company
Date
Insider
Role
Action ?
Shares
Amount
Of holding
SION Sionna Therapeutics, Inc.
7 Jul 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
85,918
$3.85M
3.4%
SION Sionna Therapeutics, Inc.
7 Jul 2026
Thompson Peter A.
Director indirect
Sold on a plan
85,918
$3.85M
3.4%
SION Sionna Therapeutics, Inc.
30 Jun 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
115,844
$5.27M
4.3%
SION Sionna Therapeutics, Inc.
30 Jun 2026
Thompson Peter A.
Director indirect
Sold on a plan
115,844
$5.27M
4.3%
SION Sionna Therapeutics, Inc.
11 May 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
184,639
$8.53M
6.5%
SION Sionna Therapeutics, Inc.
11 May 2026
Thompson Peter A.
Director indirect
Sold on a plan
184,639
$8.53M
6.5%
SION Sionna Therapeutics, Inc.
8 May 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
59,767
$2.66M
2.0%
SION Sionna Therapeutics, Inc.
8 May 2026
Thompson Peter A.
Director indirect
Sold on a plan
59,767
$2.66M
2.0%
SION Sionna Therapeutics, Inc.
7 May 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
48,546
$2.17M
1.6%
SION Sionna Therapeutics, Inc.
7 May 2026
Thompson Peter A.
Director indirect
Sold on a plan
48,546
$2.17M
1.6%
SION Sionna Therapeutics, Inc.
17 Apr 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
52,397
$2.34M
1.7%
SION Sionna Therapeutics, Inc.
17 Apr 2026
Thompson Peter A.
Director indirect
Sold on a plan
52,397
$2.34M
1.7%
SION Sionna Therapeutics, Inc.
16 Apr 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
226,906
$10.29M
7.0%
SION Sionna Therapeutics, Inc.
16 Apr 2026
Thompson Peter A.
Director indirect
Sold on a plan
226,906
$10.29M
7.0%
SION Sionna Therapeutics, Inc.
15 Apr 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
235,863
$10.53M
6.8%
SION Sionna Therapeutics, Inc.
15 Apr 2026
Thompson Peter A.
Director indirect
Sold on a plan
235,863
$10.53M
6.8%
SION Sionna Therapeutics, Inc.
14 Apr 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
47,814
$2.13M
1.4%
SION Sionna Therapeutics, Inc.
14 Apr 2026
Thompson Peter A.
Director indirect
Sold on a plan
47,814
$2.13M
1.4%
SION Sionna Therapeutics, Inc.
3 Feb 2026
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
29,063
$1.30M
0.8%
SION Sionna Therapeutics, Inc.
3 Feb 2026
Thompson Peter A.
Director indirect
Sold on a plan
29,063
$1.30M
0.8%
SION Sionna Therapeutics, Inc.
22 Jan 2026
TPG GP A, LLC
10% owner indirect
Sold at will
250,000
$10.00M
3.7%
SION Sionna Therapeutics, Inc.
24 Dec 2025
Thompson Peter A.
Director indirect
Sold on a plan
33,356
$1.49M
0.9%
SION Sionna Therapeutics, Inc.
24 Dec 2025
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
33,356
$1.49M
0.9%
SION Sionna Therapeutics, Inc.
24 Nov 2025
Thompson Peter A.
Director indirect
Sold on a plan
94,583
$4.21M
2.6%
SION Sionna Therapeutics, Inc.
24 Nov 2025
ORBIMED ADVISORS LLC
Director indirect
Sold on a plan
94,583
$4.21M
2.6%
SION Sionna Therapeutics, Inc.
19 Nov 2025
RA CAPITAL MANAGEMENT, L.P.
Director indirect
Sold at will 8×
47,442
$1.90M
22.0%
SION Sionna Therapeutics, Inc.
17 Nov 2025
RA CAPITAL MANAGEMENT, L.P.
Director indirect
Sold at will 12×
81,987
$3.33M
30.8%
SION Sionna Therapeutics, Inc.
28 Oct 2025
RA CAPITAL MANAGEMENT, L.P.
Director indirect
Sold at will 4×
62,610
$2.48M
23.0%
SION Sionna Therapeutics, Inc.
24 Oct 2025
RA CAPITAL MANAGEMENT, L.P.
Director indirect
Sold at will 4×
311,000
$12.28M
58.6%
SION Sionna Therapeutics, Inc.
21 Oct 2025
Cloonan Michael
President & CEO
Sold on a plan 4×
99,800
$3.62M
15.4%
SION Sionna Therapeutics, Inc.
21 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 10×
88,878
$3.04M
11.5%
SION Sionna Therapeutics, Inc.
20 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 4×
55,985
$1.80M
7.4%
SION Sionna Therapeutics, Inc.
17 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 6×
61,124
$1.98M
7.9%
SION Sionna Therapeutics, Inc.
16 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 8×
169,260
$5.48M
19.0%
SION Sionna Therapeutics, Inc.
15 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 4×
115,856
$3.55M
13.4%
SION Sionna Therapeutics, Inc.
13 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 4×
58,232
$1.77M
7.0%
SION Sionna Therapeutics, Inc.
3 Oct 2025
Booth Bruce
Director indirect
Sold on a plan 2×
37,746
$1.13M
4.6%
SION Sionna Therapeutics, Inc.
29 Sep 2025
Booth Bruce
Director indirect
Sold on a plan 2×
66,105
$1.99M
7.7%
Showing 1–38 of 38.