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TPST · NASDAQ · Biotechnology

Tempest Therapeutics (TPST)

Develops in vivo CAR-T candidates for autoimmune disease and cancer.

$1.10
Pre-market0.00 (0.00%)
At close$1.10(+4.76%)
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Breakdown13F · 13D/G · Form 4

Institutions20 holders · as of Mar 31, 20263.49%517.1K shares
Insiders4 holders · as of Jun 8, 202637.40%5.54M shares
Otherremainder59.11%8.75M shares

14.81M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Matthew Angel1Insiderdirector, 10 percent owner, officer: CEO and President
37.36%5.53M13Dfiled Mar 25, 2026 ↗
Vanguard Capital Management LLCInstitution
1.58%233,88813Fas of Mar 31, 2026
Geode Capital Management, LLCInstitution
0.59%86,99013Fas of Mar 31, 2026
Vanguard Fiduciary Trust CoInstitution
0.47%68,90813Fas of Mar 31, 2026
BlackRock, Inc.Institution
0.26%39,06813Fas of Mar 31, 2026
FMR LLCInstitution
0.22%33,22513Fas of Mar 31, 2026
Sabby Management, LLCInstitution
0.12%17,85613Fas of Mar 31, 2026
Northern Trust CorpInstitution
0.09%14,05313Fas of Mar 31, 2026
Dimensional Fund Advisors LPInstitution
0.08%11,44413Fas of Mar 31, 2026
UBS Group AGInstitution
0.03%4,53313Fas of Mar 31, 2026
SHAM Innovation Sante SASInsider
0.02%3,48013Gfiled Dec 17, 2018 ↗
Tower Research Capital LLC (TRC)Institution
0.02%2,79013Fas of Mar 31, 2026
Morgan StanleyInstitution
0.01%2,05813Fas of Mar 31, 2026
William Drake RicheyInsiderdirector
0.01%2,000Form 4filed Jun 8, 2026 ↗
Advisor Group Holdings, Inc.Institution
0.01%1,52913Fas of Mar 31, 2026
Braden M LeonardInsider
0.01%1,17013D/Gfiled Feb 6, 2019 ↗
Federation Des Caisses Desjardins du QuebecInstitution
0.00%29213Fas of Mar 31, 2026
Jones Financial Companies LLLPInstitution
0.00%23913Fas of Mar 31, 2026
Vanguard Global Advisers, LLCInstitution
0.00%16813Fas of Mar 31, 2026
Sbi Securities Co., Ltd.Institution
0.00%5613Fas of Mar 31, 2026
Parallel Advisors, LLCInstitution
0.00%1813Fas of Mar 31, 2026
Citigroup IncInstitution
0.00%813Fas of Mar 31, 2026
JPMorgan Chase & CoInstitution
0.00%513Fas of Mar 31, 2026
BNP Paribas Arbitrage, SNCInstitution
0.00%313Fas of Mar 31, 2026
Adage Capital Advisors, L.L.C.Strategic
—3.59% of class, as filed—13G/Afiled Feb 9, 2017 ↗
  1. Matthew Angel's transaction reports restate only vehicles that traded; the 2026 ownership statement (5.53M) is used instead.

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

20 holders · 517.1K shares · 5 new positions · 7 increased · 3 reduced · 5 closed

HolderShares% outstandingChg q/qFiled
Vanguard Capital Management LLC233.9K1.58%+233.9KnewMay 15, 2026
Geode Capital Management, LLC87.0K0.59%+42.9KMay 15, 2026
Vanguard Fiduciary Trust Co68.9K0.47%+68.9KnewMay 8, 2026
BlackRock, Inc.39.1K0.26%0May 13, 2026
FMR LLC33.2K0.22%0May 15, 2026
Sabby Management, LLC17.9K0.12%−160.7KMay 15, 2026
Northern Trust Corp14.1K0.09%0May 14, 2026
Dimensional Fund Advisors LP11.4K0.08%0May 7, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Matthew Angel37.40%5.53M13DMar 25, 2026 ↗
Sabby Management, LLC9.90%492.2K13GJan 21, 2026 ↗

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Mar 24, 2026
Matthew Angeldirector, 10 percent owner, officer: CEO and President
Purchase · 3 lots694,446$2.16694,446

CongressHouse and Senate disclosures

Not reported.