Tempest Therapeutics, Inc.

SecurityTPST / Tempest Therapeutics, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership14,053 shares
Latest Disclosed Value $ 23,047
Northern Trust Corp ownership in TPST / Tempest Therapeutics, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 14,053 shares of Tempest Therapeutics, Inc. (US:TPST) valued at $23,047 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 14,053 shares of Tempest Therapeutics, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $18,269 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F TEMPEST THERAPEUTICS COM NEW 87978U207 14,053 0 0.00 23 -42.50 0.0000
2026-02-17 2025-12-31 13F TEMPEST THERAPEUTICS COM NEW 87978U207 14,053 14,053 40 0.0000
2021-08-13 2021-06-30 13F MILLENDO THERAPEUTICS COM 60040X103 0 -31,690 -100.00 0 -100.00
2021-05-12 2021-03-31 13F MILLENDO THERAPEUTICS COM 60040X103 31,690 -3,475 -9.88 38 -49.33 0.0000
2021-02-11 2020-12-31 13F MILLENDO THERAPEUTICS COM 60040X103 35,165 -5,990 -14.55 75 11.94 0.0000
2020-11-16 2020-09-30 13F MILLENDO THERAPEUTICS COM 60040X103 41,155 5,982 17.01 67 8.06 0.0000
2020-08-14 2020-06-30 13F MILLENDO THERAPEUTICS COM 60040X103 35,173 -119,558 -77.27 62 -92.41 0.0000
2020-05-14 2020-03-31 13F MILLENDO THERAPEUTICS COM 60040X103 154,731 38,117 32.69 817 3.94 0.0002
2020-02-14 2019-12-31 13F MILLENDO THERAPEUTICS COM 60040X103 116,614 4,494 4.01 786 -1.38 0.0002
2019-11-13 2019-09-30 13F MILLENDO THERAPEUTICS COM 60040X103 112,120 70,831 171.55 797 67.09 0.0002
2019-08-13 2019-06-30 13F MILLENDO THERAPEUTICS COM 60040X103 41,289 41,289 477 0.0001
2019-02-12 2018-12-31 13F OVASCIENCE COM 69014Q101 0 -67,165 -100.00 0 -100.00
2018-11-14 2018-09-30 13F OVASCIENCE COM 69014Q101 67,165 -620 -0.91 49 -20.97 0.0000
2018-09-18 2018-06-30 13F/A-1 OVASCIENCE COM 69014Q101 67,785 -740 -1.08 62 10.71 0.0000
2018-08-14 2018-06-30 13F OVASCIENCE COM 69014Q101 67,785 -740 62
2018-05-09 2018-03-31 13F OVASCIENCE COM 69014Q101 68,525 -1,180 -1.69 56 -42.27 0.0000
2018-02-14 2017-12-31 13F OVASCIENCE COM 69014Q101 69,705 -2,858 -3.94 97 -5.83 0.0000
2017-11-13 2017-09-30 13F OVASCIENCE COM 69014Q101 72,563 -12,939 -15.13 103 -22.56 0.0000
2017-08-11 2017-06-30 13F OVASCIENCE COM 69014Q101 85,502 -266,043 -75.68 133 -79.76 0.0000
2017-05-12 2017-03-31 13F OVASCIENCE COM 69014Q101 351,545 -180,248 -33.89 657 -19.19 0.0002
2017-02-13 2016-12-31 13F OVASCIENCE COM 69014Q101 531,793 5,971 1.14 813 -78.41 0.0002
2016-11-09 2016-09-30 13F OVASCIENCE COM 69014Q101 525,822 289,039 122.07 3,765 205.11 0.0012
2016-08-12 2016-06-30 13F OVASCIENCE COM 69014Q101 236,783 -28,102 -10.61 1,234 -50.90 0.0004
2016-08-19 2016-03-31 13F/A-1 OVASCIENCE COM 69014Q101 264,885 -7,958 -2.92 2,513 -5.74 0.0008
2016-05-13 2016-03-31 13F OVASCIENCE COM 69014Q101 264,885 2,513
2016-02-12 2015-12-31 13F OVASCIENCE COM 69014Q101 272,843 7,049 2.65 2,666 18.17 0.0009
2015-11-12 2015-09-30 13F OVASCIENCE COM 69014Q101 265,794 265,794 0.00 2,256 0.0008
2015-08-13 2015-06-30 13F OVASCIENCE COM 69014Q101 0 -173,975 -100.00 0 -100.00
2015-05-14 2015-03-31 13F OVASCIENCE COM 69014Q101 173,975 23,254 15.43 6,042 -9.35 0.0018
2015-02-12 2014-12-31 13F OVASCIENCE COM 69014Q101 150,721 -3,609 -2.34 6,665 160.15 0.0020
2014-11-13 2014-09-30 13F OVASCIENCE COM 69014Q101 154,330 29,443 23.58 2,562 123.76 0.0008
2014-08-14 2014-06-30 13F OVASCIENCE COM 69014Q101 124,887 9,064 7.83 1,145 10.63 0.0004
2014-05-14 2014-03-31 13F OVASCIENCE COM 69014Q101 115,823 6,466 5.91 1,035 3.50 0.0003
2014-02-21 2013-12-31 13F/A-1 OVASCIENCE COM 69014Q101 109,357 1,730 1.61 1,000 -6.19 0.0003
2014-02-12 2013-12-31 13F OVASCIENCE COM 69014Q101 109,357 1,000
2013-11-13 2013-09-30 13F OVASCIENCE COM 69014Q101 107,627 77,591 258.33 1,066 158.11 0.0004
2013-08-09 2013-06-30 13F OVASCIENCE COM 69014Q101 30,036 30,036 413 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.