SEACOR HOLDINGS INC's ticker is and the CUSIP is 811904901. A total of 2 filers reported holding SEACOR HOLDINGS INC in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $61,000 | -88.2% | 15 | -88.0% | 0.00% | -100.0% |
| Q4 2020 | $518,000 | +6375.0% | 125 | +4066.7% | 0.00% | – |
| Q3 2020 | $8,000 | 0.0% | 3 | 0.0% | 0.00% | – |
| Q2 2020 | $8,000 | 0.0% | 3 | 0.0% | 0.00% | – |
| Q1 2020 | $8,000 | +100.0% | 3 | +200.0% | 0.00% | – |
| Q4 2019 | $4,000 | – | 1 | 0.0% | 0.00% | – |
| Q3 2019 | $0 | -100.0% | 1 | -87.5% | 0.00% | – |
| Q1 2019 | $33,000 | -64.1% | 8 | -68.0% | 0.00% | – |
| Q4 2018 | $92,000 | -25.2% | 25 | 0.0% | 0.00% | – |
| Q3 2018 | $123,000 | +13.9% | 25 | -77.3% | 0.00% | -100.0% |
| Q4 2017 | $108,000 | +25.6% | 110 | -7.6% | 0.01% | +25.0% |
| Q3 2017 | $86,000 | +8500.0% | 119 | +1222.2% | 0.00% | – |
| Q1 2017 | $1,000 | – | 9 | -80.9% | 0.00% | – |
| Q4 2015 | $0 | -100.0% | 47 | +2.2% | 0.00% | -100.0% |
| Q3 2015 | $21,000 | – | 46 | +360.0% | 0.00% | – |
| Q1 2015 | $0 | – | 10 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| SIMPLEX TRADING, LLC | 25 | $92,000 | 0.00% |