TPST Institutional Ownership & Shareholders
TEMPEST THERAPEUTICS INC (TPST) is currently held by 20 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.44M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Sabby Management, Llc is currently the largest disclosed institutional shareholder of TPST tracked by InsiderSet, reporting ownership valued at approximately $567,527 in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $241,326.992, representing an estimated loss of -57.48% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 99% of the total disclosed TPST value among the investors covered in this analysis. Major shareholders include Sabby Management, Llc, Versant Venture Management, Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in TEMPEST THERAPEUTICS INC (TPST).
This page ranks the largest institutional TPST shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
20
Total Reported Value
$1.44M
Largest Holder
Sabby Management, Llc
Largest Position
$567,527
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
29
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Sabby Management, Llc | 4.72% | 511,286 | $567,527 | $241,327 | -$326,200 | -57.48% | |
| Versant Venture Management, Llc | 0.18% | 269,772 | $299,447 | $127,332 | -$172,115 | -57.48% | |
| Vanguard Capital Management Llc | 0.00% | 233,888 | $259,616 | $110,395 | -$149,221 | -57.48% | |
| Geode Capital Management, Llc | 0.00% | 86,625 | $96,155 | $40,887 | -$55,268 | -57.48% | |
| Vanguard Fiduciary Trust Co | 0.00% | 68,908 | $76,488 | $32,525 | -$43,963 | -57.48% | |
| Blackrock, Inc. | 0.00% | 39,068 | $43,365 | $18,440 | -$24,925 | -57.48% | |
| Squarepoint Ops Llc | 0.00% | 30,900 | $34,299 | $14,585 | -$19,714 | -57.48% | |
| Northern Trust Corp | 0.00% | 20,136 | $22,351 | $9,504 | -$12,847 | -57.48% | |
| Citadel Advisors Llc | 0.00% | 19,820 | $22,000 | $9,355 | -$12,645 | -57.48% | |
| Ubs Group Ag | 0.00% | 5,636 | $6,255 | $2,660 | -$3,595 | -57.47% | |
| Tower Research Capital Llc (Trc) | 0.00% | 3,922 | $4,353 | $1,851 | -$2,502 | -57.47% | |
| Morgan Stanley | 0.00% | 2,022 | $2,244 | $954 | -$1,290 | -57.47% | |
| Osaic Holdings, Inc. | 0.00% | 1,513 | $1,669 | $714 | -$955 | -57.21% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 292 | $324 | $138 | -$186 | -57.46% | |
| Jones Financial Companies Lllp | 0.00% | 239 | $258 | $113 | -$145 | -56.28% | |
| Barclays Plc | 0.00% | 222 | $246 | $105 | -$141 | -57.40% | |
| Sbi Securities Co., Ltd. | 0.00% | 56 | $47 | $26 | -$21 | -43.76% | |
| Parallel Advisors, Llc | 0.00% | 18 | $20 | $8 | -$12 | -57.52% | |
| Bnp Paribas Financial Markets | 0.00% | 3 | $3 | $1 | -$2 | -52.80% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 1 | $1 | $0 | -$1 | -52.80% |
Frequently asked questions about TPST
Who are the largest institutional holders of TPST?
The largest institutional holders of TPST reported in the latest SEC Form 13F filings include Sabby Management, Llc, Versant Venture Management, Llc, Vanguard Capital Management Llc, Geode Capital Management, Llc, and Vanguard Fiduciary Trust Co. InsiderSet ranks institutional holders by their latest reported TPST position.
What is TPST institutional ownership?
This page tracks TPST positions reported by institutional investment managers through SEC Form 13F. TEMPEST THERAPEUTICS INC (TPST) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own TPST?
InsiderSet currently tracks 20 institutional managers reporting TPST holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of TPST shareholders.
How much TPST stock do institutions own?
Institutional investment managers disclosed approximately $1.44M in TPST holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was TPST institutional ownership last updated?
The latest TPST institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional TPST holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its TPST position after the reporting date.
Are institutions buying or selling TPST?
Institutional buying and selling can be analyzed by comparing TPST positions across consecutive 13F reporting periods. InsiderSet's TPST Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View TPST ownership changes.
How has TPST institutional ownership changed over time?
InsiderSet tracks TPST institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.