SIEBEL THOMAS M

Director · Officer · Ten-percent owner · AI

As of 2026-09-16, SIEBEL THOMAS M has 209 Form 4 transactions on record across 1 company — 125 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $7.6MIndirect: $75.0M$82.7Mas of 2026-09-16
  • Direct $7.6M
  • Indirect $75.0M
AIindirect7,105,019 sh$75.0M
AIdirect722,362 sh$7.6M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

AI · 209 trades
2026-09-14: Sale, 22,780 sh ($241K)2026-09-14: Gift, 21,986 sh ($0)2026-09-14: Gift, 21,986 sh ($0)2026-09-11: Option exercise, 44,766 sh ($0)2026-09-11: Option exercise, 44,766 sh2026-09-11: Option exercise, 44,766 sh2026-09-11: Option exercise, 44,766 sh2026-09-11: Option exercise, 44,766 sh2026-09-03: Gift, 15,846 sh ($0)2026-09-03: Gift, 15,846 sh ($0)2026-09-02: Sale, 16,890 sh ($174K)2026-09-01: Option exercise, 32,736 sh ($0)2026-09-01: Option exercise, 32,736 sh2026-09-01: Option exercise, 32,736 sh2026-09-01: Option exercise, 32,736 sh2026-09-01: Option exercise, 32,736 sh2026-08-11: Sale, 453,314 sh ($4.8M)2026-08-11: Option exercise, 453,314 sh ($1.8M)2026-08-11: Option exercise, 453,314 sh ($0)2026-08-04: Gift, 143,834 sh ($0)2026-08-04: Gift, 143,834 sh ($0)2026-08-03: Sale, 139,500 sh ($1.3M)2026-08-02: Option exercise, 283,334 sh ($0)2026-08-02: Option exercise, 283,334 sh2026-08-02: Option exercise, 283,334 sh2026-07-15: Sale, 133,490 sh ($1.2M)2026-07-15: Sale, 64,975 sh ($605K)2026-07-15: Option exercise, 133,490 sh ($521K)2026-07-15: Option exercise, 64,975 sh ($133K)2026-07-15: Option exercise, 133,490 sh ($0)2026-07-15: Option exercise, 64,975 sh ($0)2026-07-14: Sale, 264,100 sh ($2.4M)2026-07-14: Option exercise, 264,100 sh ($539K)2026-07-14: Option exercise, 264,100 sh ($0)2026-06-15: Sale, 472,005 sh ($5.2M)2026-06-15: Option exercise, 472,005 sh ($963K)2026-06-15: Gift, 21,197 sh ($0)2026-06-15: Option exercise, 472,005 sh ($0)2026-06-15: Gift, 21,197 sh ($0)2026-06-12: Sale, 23,570 sh ($257K)2026-06-11: Option exercise, 44,767 sh ($0)2026-06-11: Option exercise, 44,767 sh2026-06-11: Option exercise, 44,767 sh2026-06-03: Gift, 6,182,053 sh ($0)2026-06-03: Gift, 6,182,053 sh ($0)2026-06-02: Sale, 17,350 sh ($196K)2026-06-01: Option exercise, 6,166,667 sh ($68.8M)2026-06-01: Option exercise, 6,166,667 sh ($0)2026-06-01: Option exercise, 32,736 sh ($0)2026-06-01: Option exercise, 32,736 sh2026-06-01: Option exercise, 32,736 sh2026-05-18: Sale, 112,014 sh ($969K)2026-05-18: Option exercise, 112,014 sh ($229K)2026-05-18: Option exercise, 112,014 sh ($0)2026-05-15: Sale, 369,624 sh ($3.2M)2026-05-15: Option exercise, 369,624 sh ($754K)2026-05-15: Option exercise, 369,624 sh ($0)2026-05-05: Gift, 25,915 sh ($0)2026-05-05: Gift, 25,915 sh ($0)2026-05-04: Sale, 27,210 sh ($252K)2026-05-01: Option exercise, 53,125 sh ($0)2026-05-01: Option exercise, 53,125 sh2026-05-01: Option exercise, 53,125 sh2026-04-14: Sale, 165,278 sh ($1.4M)2026-04-14: Option exercise, 165,278 sh ($337K)2026-04-14: Option exercise, 165,278 sh ($0)2026-04-13: Sale, 326,189 sh ($2.7M)2026-04-13: Option exercise, 326,189 sh ($665K)2026-04-13: Option exercise, 326,189 sh ($0)2026-03-18: Sale, 219,294 sh ($1.9M)2026-03-18: Option exercise, 219,294 sh ($447K)2026-03-18: Option exercise, 219,294 sh ($0)2026-03-17: Sale, 282,203 sh ($2.5M)2026-03-17: Option exercise, 282,203 sh ($576K)2026-03-17: Option exercise, 282,203 sh ($0)2026-03-13: Gift, 21,331 sh ($0)2026-03-13: Gift, 21,331 sh ($0)2026-03-12: Sale, 23,435 sh ($213K)2026-03-11: Option exercise, 44,766 sh ($0)2026-03-11: Option exercise, 44,766 sh2026-03-11: Option exercise, 44,766 sh2026-03-03: Gift, 15,081 sh ($0)2026-03-03: Gift, 15,081 sh ($0)2026-03-02: Sale, 17,655 sh ($138K)2026-03-01: Option exercise, 32,736 sh ($0)2026-03-01: Option exercise, 32,736 sh2026-03-01: Option exercise, 32,736 sh2026-02-10: Sale, 511,732 sh ($6.0M)2026-02-10: Option exercise, 511,732 sh ($1.0M)2026-02-10: Option exercise, 511,732 sh ($0)2026-02-03: Gift, 25,520 sh ($0)2026-02-03: Gift, 25,520 sh ($0)2026-02-02: Sale, 27,605 sh ($298K)2026-02-01: Option exercise, 53,125 sh ($0)2026-02-01: Option exercise, 53,125 sh2026-02-01: Option exercise, 53,125 sh2026-01-13: Sale, 309,589 sh ($4.2M)2026-01-13: Sale, 212,586 sh ($2.9M)2026-01-13: Option exercise, 212,586 sh ($434K)2026-01-13: Option exercise, 212,586 sh ($0)2025-12-17: Sale, 140,768 sh ($2.0M)2025-12-16: Sale, 392,064 sh ($5.6M)2025-12-15: Gift, 21,767 sh ($0)2025-12-15: Gift, 21,767 sh ($0)2025-12-12: Sale, 23,000 sh ($367K)2025-12-11: Award / grant, 1,133,474 sh ($0)2025-12-11: Option exercise, 44,767 sh ($0)2025-12-11: Award / grant, 722,362 sh2025-12-11: Option exercise, 44,767 sh2025-12-11: Award / grant, 722,362 sh2025-12-11: Option exercise, 44,767 sh2025-12-03: Gift, 15,736 sh ($0)2025-12-03: Gift, 15,736 sh ($0)2025-12-02: Sale, 17,000 sh ($242K)2025-12-01: Option exercise, 32,736 sh ($0)2025-12-01: Option exercise, 32,736 sh2025-12-01: Option exercise, 32,736 sh2025-11-11: Sale, 543,706 sh ($8.3M)2025-11-04: Gift, 25,580 sh ($0)2025-11-04: Gift, 25,580 sh ($0)2025-11-03: Sale, 27,545 sh ($477K)2025-11-01: Option exercise, 53,125 sh ($0)2025-11-01: Option exercise, 53,125 sh2025-11-01: Option exercise, 53,125 sh2025-10-14: Sale, 554,802 sh ($10.4M)2025-09-16: Sale, 566,125 sh ($9.8M)2025-09-15: Gift, 87,119 sh ($0)2025-09-15: Gift, 87,119 sh ($0)2025-09-12: Sale, 92,000 sh ($1.5M)2025-09-11: Option exercise, 179,119 sh ($0)2025-09-11: Option exercise, 179,119 sh2025-09-11: Option exercise, 179,119 sh2025-09-03: Gift, 15,536 sh ($0)2025-09-03: Gift, 15,536 sh ($0)2025-09-02: Sale, 17,200 sh ($284K)2025-09-01: Option exercise, 32,736 sh ($0)2025-09-01: Option exercise, 32,736 sh2025-09-01: Option exercise, 32,736 sh2025-08-12: Sale, 577,678 sh ($9.7M)2025-08-04: Sale, 336,000 sh ($7.7M)2025-08-04: Gift, 323,916 sh ($0)2025-08-04: Gift, 323,916 sh ($0)2025-08-03: Option exercise, 283,333 sh ($0)2025-08-03: Option exercise, 283,333 sh2025-08-03: Option exercise, 283,333 sh2025-08-02: Option exercise, 283,333 sh ($0)2025-08-02: Option exercise, 283,333 sh2025-08-02: Option exercise, 283,333 sh2025-08-01: Award / grant, 40,125 sh ($0)2025-08-01: Option exercise, 53,125 sh ($0)2025-08-01: Option exercise, 53,125 sh2025-08-01: Option exercise, 53,125 sh2025-07-18: Sale, 575,874 sh ($16.4M)2025-07-18: Sale, 13,594 sh ($397K)2025-06-11: Sale, 590,995 sh ($14.8M)2025-06-11: Sale, 10,503 sh ($271K)2025-06-03: Gift, 15,736 sh ($0)2025-06-03: Gift, 15,736 sh ($0)2025-06-02: Sale, 17,000 sh ($447K)2025-06-01: Option exercise, 32,736 sh ($0)2025-06-01: Option exercise, 32,736 sh2025-06-01: Option exercise, 32,736 sh2025-05-14: Sale, 272,079 sh ($6.5M)2025-05-13: Sale, 341,698 sh ($8.2M)2025-05-05: Gift, 26,115 sh ($0)2025-05-05: Gift, 26,115 sh ($0)2025-05-02: Sale, 27,010 sh ($602K)2025-05-01: Option exercise, 53,125 sh ($0)2025-05-01: Option exercise, 53,125 sh2025-05-01: Option exercise, 53,125 sh2025-04-16: Sale, 13,567 sh ($264K)2025-04-16: Sale, 634 sh ($12K)2025-04-15: Sale, 228,201 sh ($4.5M)2025-04-15: Sale, 10,728 sh ($214K)2025-04-14: Sale, 311,488 sh ($6.3M)2025-04-14: Sale, 44,930 sh ($935K)2025-04-14: Sale, 14,639 sh ($294K)2025-04-14: Sale, 2,112 sh ($44K)2025-03-18: Sale, 127,191 sh ($2.8M)2025-03-18: Sale, 800 sh ($18K)2025-03-17: Sale, 216,974 sh ($4.7M)2025-03-14: Sale, 294,116 sh ($6.3M)2025-03-03: Gift, 16,112 sh ($0)2025-03-03: Gift, 16,112 sh ($0)2025-03-01: Withheld for tax, 16,624 sh ($390K)2025-03-01: Option exercise, 32,736 sh ($0)2025-03-01: Option exercise, 32,736 sh2025-03-01: Option exercise, 32,736 sh2025-02-12: Sale, 78,873 sh ($2.5M)2025-02-12: Sale, 20,828 sh ($679K)2025-02-11: Sale, 334,227 sh ($10.8M)2025-02-11: Sale, 120,748 sh ($4.2M)2025-02-11: Sale, 97,447 sh ($3.3M)2025-02-11: Option exercise, 133,000 sh ($247K)2025-02-11: Option exercise, 133,000 sh ($0)2025-02-03: Gift, 26,148 sh ($0)2025-02-03: Gift, 26,148 sh ($0)2025-02-01: Withheld for tax, 26,977 sh ($846K)2025-02-01: Option exercise, 53,125 sh ($0)2025-02-01: Option exercise, 53,125 sh2025-02-01: Option exercise, 53,125 sh2025-01-15: Sale, 222,212 sh ($7.1M)2025-01-15: Sale, 33,389 sh ($1.1M)2025-01-15: Option exercise, 255,601 sh ($475K)2025-01-15: Option exercise, 255,601 sh ($0)2025-01-14: Sale, 319,629 sh ($9.9M)2025-01-14: Sale, 90,202 sh ($2.8M)2025-01-14: Option exercise, 409,831 sh ($762K)2025-01-14: Option exercise, 409,831 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-14AISale22,780 @ $10.56$241K−3.0% of holding744,348Form 4
2026-09-02AISale16,890 @ $10.30$174K−2.2% of holding738,208Form 4
2026-08-11AISale453,314 @ $10.51$4.8M−38.6% of holding722,362Form 4
2026-08-03AISale139,500 @ $9.61$1.3M−13.9% of holding866,196Form 4
2026-07-15AISale133,490 @ $9.32$1.2M−15.6% of holding722,362Form 4
2026-07-15AISale64,975 @ $9.31$605K−8.3% of holding722,362Form 4
2026-07-14AISale264,100 @ $9.07$2.4M−26.8% of holding722,362Form 4
2026-06-15AISale472,005 @ $11.11$5.2M−39.5% of holding722,362Form 4
2026-06-12AISale23,570 @ $10.92$257K−3.1% of holding743,559Form 4
2026-06-02AISale17,350 @ $11.32$196K−0.3% of holding6,904,415Form 4
2026-05-18AISale112,014 @ $8.65$969K−13.4% of holding722,362Form 4
2026-05-15AISale369,624 @ $8.72$3.2M−33.8% of holding722,362Form 4
2026-05-04AISale27,210 @ $9.27$252K−3.5% of holding748,277Form 4
2026-04-14AISale165,278 @ $8.49$1.4M−18.6% of holding722,362Form 4
2026-04-13AISale326,189 @ $8.31$2.7M−31.1% of holding722,362Form 4
2026-03-18AISale219,294 @ $8.67$1.9M−23.3% of holding722,362Form 4
2026-03-17AISale282,203 @ $8.86$2.5M−28.1% of holding722,362Form 4
2026-03-12AISale23,435 @ $9.11$213K−3.1% of holding743,693Form 4
2026-03-02AISale17,655 @ $7.79$138K−2.3% of holding737,443Form 4
2026-02-10AISale511,732 @ $11.66$6.0M−41.5% of holding722,362Form 4
2026-02-02AISale27,605 @ $10.81$298K−3.6% of holding747,882Form 4
2026-01-13AISale309,589 @ $13.52$4.2M−32.9% of holding632,256Form 4
2026-01-13AISale212,586 @ $13.52$2.9M−22.7% of holding722,362Form 4
2025-12-17AISale140,768 @ $14.22$2.0M−13.0% of holding941,845Form 4
2025-12-16AISale392,064 @ $14.37$5.6M−26.6% of holding1,082,613Form 4
2025-12-12AISale23,000 @ $15.94$367K−3.0% of holding744,129Form 4
2025-12-02AISale17,000 @ $14.21$242K−51.9% of holding15,736Form 4
2025-11-11AISale543,706 @ $15.24$8.3M−27.4% of holding1,437,174Form 4
2025-11-03AISale27,545 @ $17.30$477K−51.8% of holding25,580Form 4
2025-10-14AISale554,802 @ $18.82$10.4M−22.1% of holding1,955,300Form 4
2025-09-16AISale566,125 @ $17.23$9.8M−18.4% of holding2,510,102Form 4
2025-09-12AISale92,000 @ $16.33$1.5M−51.4% of holding87,119Form 4
2025-09-02AISale17,200 @ $16.49$284K−52.5% of holding15,536Form 4
2025-08-12AISale577,678 @ $16.78$9.7M−16.3% of holding2,973,572Form 4
2025-08-04AISale336,000 @ $22.77$7.7M−50.9% of holding323,916Form 4
2025-07-18AISale575,874 @ $28.56$16.4M−15.1% of holding3,240,928Form 4
2025-07-18AISale13,594 @ $29.24$397K−0.4% of holding3,227,334Form 4
2025-06-11AISale590,995 @ $25.01$14.8M−13.4% of holding3,827,305Form 4
2025-06-11AISale10,503 @ $25.76$271K−0.3% of holding3,816,802Form 4
2025-06-02AISale17,000 @ $26.30$447K−51.9% of holding15,736Form 4
2025-05-14AISale272,079 @ $23.99$6.5M−5.8% of holding4,402,564Form 4
2025-05-13AISale341,698 @ $24.00$8.2M−6.8% of holding4,674,643Form 4
2025-05-02AISale27,010 @ $22.27$602K−50.8% of holding26,115Form 4
2025-04-16AISale13,567 @ $19.47$264K−100.0% of holding0Form 4
2025-04-16AISale634 @ $19.47$12K−0.0% of holding4,990,226Form 4
2025-04-15AISale228,201 @ $19.92$4.5M−94.4% of holding13,567Form 4
2025-04-15AISale10,728 @ $19.92$214K−0.2% of holding4,990,860Form 4
2025-04-14AISale311,488 @ $20.10$6.3M−52.1% of holding286,698Form 4
2025-04-14AISale44,930 @ $20.81$935K−15.7% of holding241,768Form 4
2025-04-14AISale14,639 @ $20.10$294K−0.3% of holding5,003,700Form 4
2025-04-14AISale2,112 @ $20.81$44K−0.0% of holding5,001,588Form 4
2025-03-18AISale127,191 @ $21.83$2.8M−17.5% of holding598,986Form 4
2025-03-18AISale800 @ $22.25$18K−0.1% of holding598,186Form 4
2025-03-17AISale216,974 @ $21.88$4.7M−23.0% of holding726,177Form 4
2025-03-14AISale294,116 @ $21.50$6.3M−23.8% of holding943,151Form 4
2025-02-12AISale78,873 @ $32.22$2.5M−5.9% of holding1,258,095Form 4
2025-02-12AISale20,828 @ $32.58$679K−1.7% of holding1,237,267Form 4
2025-02-11AISale334,227 @ $32.43$10.8M−17.7% of holding1,555,163Form 4
2025-02-11AISale120,748 @ $34.37$4.2M−8.3% of holding1,336,968Form 4
2025-02-11AISale97,447 @ $33.49$3.3M−6.3% of holding1,457,716Form 4
2025-01-15AISale222,212 @ $31.96$7.1M−11.0% of holding1,789,779Form 4
2025-01-15AISale33,389 @ $32.66$1.1M−1.9% of holding1,756,390Form 4
2025-01-14AISale319,629 @ $30.82$9.9M−14.8% of holding1,846,592Form 4
2025-01-14AISale90,202 @ $31.48$2.8M−4.9% of holding1,756,390Form 4
145 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-14AIGift21,9867,105,019Form 4
2026-09-14AIGift21,986722,362Form 4
2026-09-11AIOption exercise44,766179,228Form 4
2026-09-11AIOption exercise44,766767,128Form 4
2026-09-11AIOption exercise44,766767,128Form 4
2026-09-11AIOption exercise44,766767,128Form 4
2026-09-11AIOption exercise44,766767,128Form 4
2026-09-03AIGift15,846722,362Form 4
2026-09-03AIGift15,8467,083,033Form 4
2026-09-01AIOption exercise32,73632,738Form 4
2026-09-01AIOption exercise32,736755,098Form 4
2026-09-01AIOption exercise32,736755,098Form 4
2026-09-01AIOption exercise32,736755,098Form 4
2026-09-01AIOption exercise32,736755,098Form 4
2026-08-11AIOption exercise453,3141,175,676Form 4
2026-08-11AIOption exercise453,3142,413,196Form 4
2026-08-04AIGift143,834722,362Form 4
2026-08-04AIGift143,8347,067,187Form 4
2026-08-02AIOption exercise283,3340Form 4
2026-08-02AIOption exercise283,3341,005,696Form 4
2026-08-02AIOption exercise283,3341,005,696Form 4
2026-07-15AIOption exercise133,490855,852Form 4
2026-07-15AIOption exercise64,975787,337Form 4
2026-07-15AIOption exercise133,4902,866,510Form 4
2026-07-15AIOption exercise64,9750Form 4
2026-07-14AIOption exercise264,100986,462Form 4
2026-07-14AIOption exercise264,10064,975Form 4
2026-06-15AIOption exercise472,0051,194,367Form 4
2026-06-15AIGift21,197722,362Form 4
2026-06-15AIOption exercise472,005329,075Form 4
2026-06-15AIGift21,1976,923,353Form 4
2026-06-11AIOption exercise44,767223,994Form 4
2026-06-11AIOption exercise44,767767,129Form 4
2026-06-11AIOption exercise44,767767,129Form 4
2026-06-03AIGift6,182,053722,362Form 4
2026-06-03AIGift6,182,0536,902,156Form 4
2026-06-01AIOption exercise6,166,6676,921,765Form 4
2026-06-01AIOption exercise6,166,6670Form 4
2026-06-01AIOption exercise32,73665,474Form 4
2026-06-01AIOption exercise32,736755,098Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.