Siebel Thomas M (CIK 0001031530)

Latest company ownership

Role: Chair
Shares held
3,122,912
Last filed at
Dec 3, 2025
Confidence Score
0.1
2025Q4
Confidence Score History
2021Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 16, 2025 Dec 18, 2025 C3.ai, Inc. Chair Sell 8.8 -532,832 -24.25% $7.6M
Dec 11, 2025 Dec 15, 2025 C3.ai, Inc. Chair Sell 97.5 +699,362 46.70% $366.6K
Dec 1, 2025 Dec 3, 2025 C3.ai, Inc. Chair Sell 42.5 -17,000 -1.16% $241.6K
Nov 11, 2025 Nov 12, 2025 C3.ai, Inc. Chair Sell 3.8 -543,706 -27.45% $8.3M
Nov 1, 2025 Nov 4, 2025 C3.ai, Inc. Chair Sell 40.0 -27,545 -1.37% $476.5K
Oct 14, 2025 Oct 16, 2025 C3.ai, Inc. Chair Sell 7.5 -554,802 -22.10% $10.4M
Sep 16, 2025 Sep 17, 2025 C3.ai, Inc. Chair Sell 13.8 -566,125 -18.40% $9.8M
Sep 11, 2025 Sep 15, 2025 C3.ai, Inc. Chair Sell 37.5 -92,000 -2.90% $1.5M
Sep 1, 2025 Sep 3, 2025 C3.ai, Inc. Chair Sell 42.5 -17,200 -0.57% $283.6K
Aug 12, 2025 Aug 14, 2025 C3.ai, Inc. CEO Sell 13.8 -577,678 -16.27% $9.7M
Aug 1, 2025 Aug 5, 2025 C3.ai, Inc. CEO Sell 36.3 -295,875 -7.03% $7.7M
Jul 18, 2025 Jul 22, 2025 C3.ai, Inc. CEO Sell 12.5 -589,468 -15.44% $16.8M
Jun 11, 2025 Jun 12, 2025 C3.ai, Inc. CEO Sell 17.5 -601,498 -13.61% $15.1M
Jun 1, 2025 Jun 3, 2025 C3.ai, Inc. CEO Sell 37.5 -17,000 -0.38% $447.1K
May 13, 2025 May 15, 2025 C3.ai, Inc. CEO Sell 17.5 -613,777 -12.24% $14.7M
May 1, 2025 May 5, 2025 C3.ai, Inc. CEO Sell 30.0 -27,010 -0.54% $601.6K
Apr 14, 2025 Apr 16, 2025 C3.ai, Inc. CEO Sell 17.5 -626,299 -11.15% $12.6M
Mar 14, 2025 Mar 18, 2025 C3.ai, Inc. CEO Sell 21.3 -639,081 -8.25% $13.9M
Mar 1, 2025 Mar 4, 2025 C3.ai, Inc. CEO Sell 37.5 -16,624 -0.27% $389.8K
Feb 11, 2025 Feb 13, 2025 C3.ai, Inc. CEO Sell 21.3 -652,123 -7.78% $21.5M
Feb 1, 2025 Feb 4, 2025 C3.ai, Inc. CEO Sell 37.5 -26,977 -0.40% $845.7K
Jan 14, 2025 Jan 16, 2025 C3.ai, Inc. CEO Sell 30.0 -665,432 -4.66% $20.9M
Dec 1, 2024 Dec 3, 2024 C3.ai, Inc. CEO Sell 37.5 -16,591 -0.25% $616.9K
Nov 1, 2024 Nov 4, 2024 C3.ai, Inc. CEO Sell 37.5 -26,924 -0.40% $673.9K
Aug 30, 2024 Sep 4, 2024 C3.ai, Inc. CEO Sell 37.5 -16,591 -0.25% $387.2K
Aug 5, 2024 Aug 7, 2024 C3.ai, Inc. CEO Sell 67.5 +20,635 0.34% $506.8K
Aug 1, 2024 Aug 5, 2024 C3.ai, Inc. CEO Sell 37.5 -26,924 -0.26% $695.2K
Jun 1, 2024 Jun 4, 2024 C3.ai, Inc. CEO Sell 37.5 -16,591 -0.30% $490.6K
May 1, 2024 May 3, 2024 C3.ai, Inc. CEO Sell 37.5 -26,924 -0.49% $610.9K
Mar 1, 2024 Mar 5, 2024 C3.ai, Inc. CEO Sell 37.5 -16,591 -0.23% $595.1K
Feb 1, 2024 Feb 5, 2024 C3.ai, Inc. CEO Sell 37.5 -21,085 -0.29% $526.1K
Nov 1, 2023 Nov 2, 2023 C3.ai, Inc. CEO Sell 37.5 -26,340 -0.48% $631.4K
Aug 1, 2023 Aug 2, 2023 C3.ai, Inc. CEO Sell 35.0 -26,340 -0.48% $1.2M
Jun 20, 2023 Jun 22, 2023 C3.ai, Inc. CEO Sell 67.5 +11,673 0.22% $495.8K
May 1, 2023 May 3, 2023 C3.ai, Inc. CEO Sell 37.5 -26,340 -0.49% $490.7K
Feb 1, 2023 Feb 3, 2023 C3.ai, Inc. CEO Sell 37.5 -19,625 -0.37% $425.5K
Nov 1, 2022 Nov 3, 2022 C3.ai, Inc. CEO Sell 37.5 -26,340 -0.49% $340.3K
Aug 1, 2022 Oct 11, 2022 C3.ai, Inc. CEO Sell 37.5 -26,340 -0.50% $492.8K
Aug 1, 2022 Aug 3, 2022 C3.ai, Inc. CEO Sell 30.0 -26,340 -0.50% $492.8K
Nov 15, 2021 Nov 17, 2021 C3.ai, Inc. CEO Sell 33.8 -615,488 -2.49% $29.8M
Oct 13, 2021 Oct 15, 2021 C3.ai, Inc. CEO Sell 21.3 -484,149 -7.62% $22.4M
Sep 13, 2021 Sep 15, 2021 C3.ai, Inc. CEO Sell 37.5 -640,866 -1.43% $31.5M
Aug 16, 2021 Aug 18, 2021 C3.ai, Inc. CEO Sell 21.3 -653,945 -8.55% $30.2M
Jul 13, 2021 Jul 15, 2021 C3.ai, Inc. CEO Sell 21.3 -667,291 -8.03% $35.8M
Jun 14, 2021 Jun 16, 2021 C3.ai, Inc. CEO Sell 21.3 -680,909 -7.57% $40.4M
Jun 10, 2021 Jun 14, 2021 C3.ai, Inc. CEO Sell 15.0 -705,644 -7.27% $41.6M
Jun 7, 2021 Jun 9, 2021 C3.ai, Inc. CEO Sell 15.0 -1,294,356 -11.77% $80.8M
Mar 15, 2021 Mar 17, 2021 C3.ai, Inc. CEO Sell 15.0 -1,138,024 -9.38% $95.6M
Mar 8, 2021 Mar 10, 2021 C3.ai, Inc. CEO Sell 15.0 -2,263,241 -15.90% $192M