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Insider Trading Intelligence
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DT

David A. Tonnel

RIG
SVP AND CORPORATE CONTROLLER · TRANSOCEAN LTD. · CIK 0001318251
FILING MIX · LIFETIME57%/43%
BUYS
31
SELLS
23
TOTAL VALUE
$6.79M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
734,508
AVG SELL PX
$5.79
TRADE KIND
SHOWING 54 / 54
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by David A. Tonnel, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d10+50.00%+0.69%+0.21%+0.48%+0.28%—
14d10+50.00%+2.67%+0.57%+2.11%+2.06%—
30d10+40.00%-0.23%-1.09%+0.86%+2.05%—
60d10+70.00%-3.59%-1.79%-1.92%-1.82%—
90d10+50.00%-6.00%+2.54%-8.54%-10.29%—
180d10(1 pending)+33.33%+6.88%+10.11%-3.23%+10.97%—
1y10(1 pending)+77.78%-15.61%+23.03%-38.64%-39.22%—
2y10(1 pending)+100.00%-43.59%+47.97%-91.56%-95.73%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
RIG · 727,088 shares · as of Mar 4, 2024
0198,719397,439596,158794,8772021202220232024SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 31 buys / 23 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SMR
NUSCALE POWER CORP
SALE
Chief Accounting Officer
2,290$11.85$27.1K7,420Mar 25, 2026Mar 26, 2026 ↗View →
SMR
NUSCALE POWER CORP
SALE
Chief Accounting Officer
9,710——19,421Mar 24, 2026Mar 26, 2026 ↗View →
SMR
NUSCALE POWER CORP
PURCHASE
Chief Accounting Officer
9,710——9,710Mar 24, 2026Mar 26, 2026 ↗View →
SMR
NUSCALE POWER CORP
PURCHASEGRANT
Stock grant
54,474——54,474Feb 28, 2026Mar 3, 2026 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
67,789$5.08$344.4K727,088Mar 4, 2024Mar 5, 2024 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
71,002$5.09$361.4K759,222Mar 1, 2024Mar 5, 2024 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
64,735$5.09$329.5K688,220Mar 1, 2024Mar 5, 2024 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
35,655$5.09$181.5K794,877Mar 1, 2024Mar 5, 2024 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
140,084$5.08$711.6K623,485Feb 9, 2024Feb 12, 2024 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
345,780——763,569Feb 8, 2024Feb 12, 2024 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASEGRANT
Stock grant
135,777——135,777Feb 8, 2024Feb 12, 2024 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
57,259$8.22$470.7K417,789Aug 31, 2023Sep 5, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE10b5-1
10b5-1 plan
1,754$8.76$15.4K475,048Jul 18, 2023Jul 20, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE10b5-1
10b5-1 plan
12,000$6.53$78.4K476,802Apr 17, 2023Apr 19, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
84,612$6.76$572.0K488,802Mar 2, 2023Mar 3, 2023 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
69,611$7.08$492.8K437,678Mar 1, 2023Mar 3, 2023 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
64,734$7.08$458.3K502,412Mar 1, 2023Mar 3, 2023 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
71,002$7.08$502.7K573,414Mar 1, 2023Mar 3, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
24,857$7.38$183.4K368,067Feb 15, 2023Feb 17, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
108,974$7.20$784.6K392,924Feb 10, 2023Feb 13, 2023 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP - CHIEF ACCOUNTING OFFICER
268,499——501,898Feb 9, 2023Feb 13, 2023 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASEGRANT
Stock grant
106,967——106,967Feb 9, 2023Feb 13, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
43,668$6.94$303.1K233,399Feb 1, 2023Feb 3, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
14,541$6.15$89.4K277,067Jan 18, 2023Jan 20, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
34,267$5.45$186.8K291,608Jan 10, 2023Jan 11, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP - CHIEF ACCOUNTING OFFICER
13,069$4.95$64.7K325,875Jan 6, 2023Jan 10, 2023 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
58,746$3.57$209.7K338,944Mar 2, 2022Mar 3, 2022 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
69,610——332,956Mar 1, 2022Mar 3, 2022 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
12,865——263,346Mar 1, 2022Mar 3, 2022 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
64,734——397,690Mar 1, 2022Mar 3, 2022 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
20,497$3.61$74.0K250,481Feb 11, 2022Feb 14, 2022 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASEGRANT
Stock grant
213,006——213,006Feb 10, 2022Feb 14, 2022 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
51,821——270,978Feb 10, 2022Feb 14, 2022 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
27,956$3.94$110.1K219,157May 10, 2021May 11, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
69,610——139,221May 8, 2021May 11, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
69,610——247,113May 8, 2021May 11, 2021 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
9,541$3.68$35.1K177,503Mar 2, 2021Mar 3, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
10,427——174,179Mar 1, 2021Mar 3, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
12,865——187,044Mar 1, 2021Mar 3, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
12,865——12,865Mar 1, 2021Mar 3, 2021 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
21,471$3.37$72.4K163,752Feb 12, 2021Feb 16, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASEGRANT
Stock grant
194,203——194,203Feb 12, 2021Mar 4, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
49,061——185,223Feb 11, 2021Feb 16, 2021 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASEGRANT
Stock grant
208,831——208,831May 8, 2020May 12, 2020 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
13,774——136,668Mar 2, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
12,865——25,730Mar 2, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
10,427——10,427Mar 2, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
12,864——150,442Mar 1, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
10,426——137,578Mar 1, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
8,069——127,152Mar 1, 2020Mar 4, 2020 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
10,000$4.68$46.8K119,083Feb 10, 2020Feb 11, 2020 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
17,303$4.71$81.5K128,577Feb 7, 2020Feb 16, 2021 ↗View →
RIG
TRANSOCEAN LTD.
SALE
SVP and Corporate Controller
16,797——129,083Feb 7, 2020Feb 10, 2020 ↗View →
RIG
TRANSOCEAN LTD.
PURCHASE
SVP and Corporate Controller
40,144——145,880Feb 6, 2020Feb 10, 2020 ↗View →
Other insiders · RIG
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About this filer
CIK 0001318251
ROLE
SVP and Corporate Controller
PRIMARY
RIG
COMPANIES
2
ACTIVE SINCE
Feb 2020
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