Tempest Therapeutics TPST Insider Ownership

NASDAQ TPST
$0.52 0.00 (-0.82%)
At close: Oct 22, 2026 · 4:00 PM EDT

Insider Holdings by Owner

425.32K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
1.49%
▼-0.101% pp QoQ
Shares Held by Insiders
237.49K
filed for Sep 2026
▼-6.37% QoQ
Shares Outstanding
15.98Mn
15,979,411 shares
Direct Holdings
6.01K
Indirect: 231.48K
Net Shares Traded (QoQ)
-16.15K
net selling in Sep 2026
Insiders Holding Shares
7
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

In the last 12 months, insiders at Tempest Therapeutics made open-market purchases of $500,001 (231.48K shares) and sold no shares on the open market.

Form 4 Holdings

Insiders Holding TPST

Insiders 7
Shares held 425.32K
Of outstanding 2.66%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Matthew Angel Ceo And President 0 231,482 231,482 54.4% 25 Mar, 2026
2 Thomas Woiwode Director, TenPercentOwner 0 162,966 162,966 38.3% 03 May, 2022
3 Venture Capital Vi, L.P. Versant TenPercentOwner 16,149 0 16,149 3.8% 12 Aug, 2024
4 Thomas W. Dubensky President 8,718 0 8,718 2.0% 11 Jan, 2022
5 Stephen R Brady President And Ceo 3,567 0 3,567 0.8% 08 Jul, 2024
6 Justin Trojanowski Corporate Controller 1,705 0 1,705 0.4% 02 Jul, 2024
7 Samuel Whiting Chief Medical Officer 736 0 736 0.2% 03 Jul, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

454 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
22 Sep, 2026 Nancy Freda Smith Director Acquired A 25,000 $0.00 $0 25,000 Direct
04 Jun, 2026 John D. Yee Director Acquired A 25,000 $0.00 $0 25,000 Direct
04 Jun, 2026 William Drake Richey Director Acquired A 25,000 $0.00 $0 25,000 Direct
31 Mar, 2026 Justin Trojanowski Corporate Controller Acquired A 22,000 $0.00 $0 22,000 Direct
31 Mar, 2026 Nicholas Maestas Chief Financial Officer Acquired A 140,000 $0.00 $0 140,000 Direct
24 Mar, 2026 Matthew Angel Ceo And President Acquired P 231,482 $2.16 $500.00K 231,482 Indirect
04 Feb, 2026 Matthew Angel Ceo And President Acquired A 269,621 $0.00 $0 269,621 Direct
27 Jan, 2026 Christine A Pellizzari Director Acquired A 1,230 $0.00 $0 1,230 Direct
27 Jan, 2026 Ronit Simantov Director Acquired A 1,230 $0.00 $0 1,230 Direct
27 Jan, 2026 Michael Raab Director Acquired A 1,230 $0.00 $0 1,230 Direct
27 Jan, 2026 Geoffrey Nichol Director Acquired A 1,230 $0.00 $0 1,230 Direct
02 Jan, 2025 Stephen R Brady President And Ceo Acquired A 550,000 $0.00 $0 42,306 Direct
02 Jan, 2025 Justin Trojanowski Corporate Controller Acquired A 30,000 $0.00 $0 2,308 Direct
02 Jan, 2025 Nicholas Maestas Chief Financial Officer Acquired A 200,000 $0.00 $0 15,384 Direct
02 Jan, 2025 Samuel Whiting Chief Medical Officer Acquired A 270,000 $0.00 $0 20,768 Direct
08 Aug, 2024 Venture Capital Vi, L.P. Versant TenPercentOwner Disposed S 400,000 $17.55 $7.02Mn 45,994 Direct
12 Aug, 2024 Venture Capital Vi, L.P. Versant TenPercentOwner Disposed S 387,999 $14.31 $5.55Mn 16,149 Direct
03 Jul, 2024 Stephen R Brady President And Ceo Acquired P 35,000 $27.43 $960.09K 3,567 Direct
02 Jul, 2024 Samuel Whiting Chief Medical Officer Acquired P 4,672 $27.69 $129.37K 736 Direct
28 Jun, 2024 Justin Trojanowski Corporate Controller Acquired P 7,500 $28.08 $210.61K 1,705 Direct