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GR

Gregory Scott Rossmiller

SMHI
SVP & CAO · SEACOR MARINE HOLDINGS INC. · CIK 0001737606
FILING MIX · LIFETIME51%/49%
BUYS
19
SELLS
18
TOTAL VALUE
$1.60M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
275,470
AVG SELL PX
$9.16
TRADE KIND
SHOWING 37 / 37
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gregory Scott Rossmiller, 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
7d3+100.00%-5.71%-1.02%-4.68%-5.68%—
14d3+100.00%-8.00%-3.83%-4.16%-2.64%—
30d3+66.67%-8.27%-2.29%-5.98%+0.77%—
60d3+100.00%-20.60%-0.92%-19.68%-12.76%—
90d3+100.00%-26.35%+3.70%-30.05%-22.88%—
180d3+100.00%-26.32%+11.36%-37.68%-28.13%—
1y3+100.00%-44.38%+20.56%-64.94%-60.75%—
2y3(1 pending)+100.00%-54.03%+49.90%-103.93%-103.93%—
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
SMHI · 275,470 shares · as of Jun 16, 2026
079,355158,710238,064317,419202120222023202420252026SHARES 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
2026
FLOW · 19 buys / 18 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SMHI
SEACOR MARINE HOLDINGS INC.
SALE10b5-1
10b5-1 plan
9,601$7.17$68.8K275,470Jun 16, 2026Jun 16, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE10b5-1
10b5-1 plan
9,670$7.27$70.3K285,071Jun 15, 2026Jun 16, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASE
SVP & CAO
3,719——296,205Mar 7, 2026Mar 10, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
1,464$7.31$10.7K294,741Mar 7, 2026Mar 10, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
3,719——0Mar 7, 2026Mar 10, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
24,933$7.63$190.2K292,486Mar 4, 2026Mar 5, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
16,420——16,420Feb 27, 2026Mar 2, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
34,215——317,419Feb 27, 2026Mar 2, 2026 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASE
SVP & CAO
20,080——291,106Mar 11, 2025Mar 12, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
20,080——0Mar 11, 2025Mar 12, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
7,902$5.08$40.1K283,204Mar 11, 2025Mar 12, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
25,076$5.26$131.9K271,026Mar 4, 2025Mar 5, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
31,225——31,225Feb 28, 2025Mar 4, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
71,205——296,102Feb 28, 2025Mar 4, 2025 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE10b5-1
10b5-1 plan
8,617$15.02$129.4K224,897Jul 16, 2024Jul 17, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASE
SVP & CAO
15,790——239,728Mar 12, 2024Mar 14, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
15,790——0Mar 12, 2024Mar 14, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
6,214$12.54$77.9K233,514Mar 12, 2024Mar 14, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
24,370——24,370Mar 4, 2024Mar 5, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
27,452$12.28$337.1K223,938Mar 4, 2024Mar 5, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
61,953——251,390Mar 4, 2024Mar 5, 2024 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE10b5-1
10b5-1 plan
13,236$14.03$185.7K189,437Sep 12, 2023Sep 13, 2023 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE10b5-1
10b5-1 plan
602$14.00$8.4K202,673Sep 11, 2023Sep 13, 2023 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
25,611$10.29$263.5K203,275Mar 8, 2023Mar 9, 2023 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
18,595——18,595Mar 7, 2023Mar 9, 2023 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
56,913——228,886Mar 7, 2023Mar 9, 2023 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
72,291——171,973Mar 11, 2022Mar 15, 2022 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
20,080——20,080Mar 11, 2022Mar 15, 2022 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
9,840$5.88$57.9K99,682Mar 11, 2022Mar 15, 2022 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
2,984$5.72$17.1K33,088Mar 12, 2021Mar 15, 2021 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
76,434——109,522Mar 12, 2021Mar 15, 2021 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
15,790——15,790Mar 12, 2021Mar 15, 2021 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
11,250——11,250Jun 9, 2020Jun 10, 2020 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
SALE
SVP & CAO
1,557$6.97$10.9K15,072Mar 5, 2020Mar 6, 2020 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
3,750——3,750Mar 5, 2020Mar 6, 2020 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
21,000——36,072Mar 5, 2020Mar 6, 2020 ↗View →
SMHI
SEACOR MARINE HOLDINGS INC.
PURCHASEGRANT
Stock grant
14,000——14,000Mar 5, 2020Mar 6, 2020 ↗View →
Other insiders · SMHI
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About this filer
CIK 0001737606
ROLE
SVP & CAO
PRIMARY
SMHI
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001737606DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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