BankUnited, Inc.
US ˙ NYSE ˙ US06652K1034

SecurityBKU / BankUnited, Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership3,152 shares
Latest Disclosed Value $ 142,344
Simplex Trading, Llc ownership in BKU / BankUnited, Inc.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 3,152 shares of BankUnited, Inc. (US:BKU) valued at $142,344 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 6 shares of BankUnited, Inc.. The current value of the position is $143,700 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (BKU) in the form of stock options. The firm currently holds call options representing 300 of underlying shares valued at $13,548 USD and put options representing 300 of underlying shares valued at $13,548 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BKU / BankUnited, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F BANKUNITED COM 06652K103 3,152 3,146 52,433.33 142 0.0000
2026-02-11 2025-12-31 13F BANKUNITED COM 06652K103 6 6 0 0.0000
2025-11-12 2025-09-30 13F BANKUNITED COM 06652K103 0 -186 -100.00 0 0.0000
2025-08-05 2025-06-30 13F BANKUNITED COM 06652K103 186 -284 -60.43 0 0.0000
2025-05-12 2025-03-31 13F BANKUNITED COM 06652K103 470 378 410.87 0 0.0000
2025-02-11 2024-12-31 13F BANKUNITED COM 06652K103 92 -68 -42.50 0 0.0000
2024-11-08 2024-09-30 13F BANKUNITED COM 06652K103 160 160 0 0.0000
2024-04-25 2024-03-31 13F BANKUNITED COM 06652K103 0 -4,203 -100.00 0 0.0000
2024-02-02 2023-12-31 13F BANKUNITED COM 06652K103 4,203 -5,124 -54.94 0 0.0001
2023-11-01 2023-09-30 13F BANKUNITED COM 06652K103 9,327 9,327 0 0.0002
2023-08-04 2023-06-30 13F BANKUNITED COM 06652K103 0 -12,737 -100.00 0 0.0000
2023-04-27 2023-03-31 13F BANKUNITED COM 06652K103 12,737 12,619 10,694.07 0 0.0003
2023-02-02 2022-12-31 13F BANKUNITED COM 06652K103 118 118 0 0.0000
2021-04-26 2021-03-31 13F BANKUNITED COM 06652K103 0 -5,474 -100.00 0 -100.00
2021-02-02 2020-12-31 13F BANKUNITED COM 06652K103 5,474 5,474 190 0.0002
2019-10-15 2019-09-30 13F BANKUNITED COM 06652K103 0 -4,824 -100.00 0 -100.00
2019-07-26 2019-06-30 13F BANKUNITED COM 06652K103 4,824 2,403 99.26 162 102.50 0.0004
2019-04-18 2019-03-31 13F BANKUNITED COM 06652K103 2,421 -5,245 -68.42 80 -65.07 0.0002
2019-01-16 2018-12-31 13F BANKUNITED COM 06652K103 7,666 6,356 485.19 229 397.83 0.0007
2018-10-23 2018-09-30 13F BANKUNITED COM 06652K103 1,310 -5,333 -80.28 46 -83.03 0.0001
2018-07-30 2018-06-30 13F BANKUNITED COM 06652K103 6,643 6,353 2,190.69 271 2,363.64 0.0011
2018-04-26 2018-03-31 13F BANKUNITED COM 06652K103 290 290 -95.63 11 -95.94 0.0005
2018-01-10 2017-12-31 13F BANKUNITED COM 06652K103 0 -533 -100.00 0 -100.00
2017-10-25 2017-09-30 13F BANKUNITED COM 06652K103 533 533 18 0.0007
2017-01-11 2016-12-31 13F BANKUNITED COM 06652K103 0 -4,410 -100.00 0 -100.00
2016-10-07 2016-09-30 13F BANKUNITED COM 06652K103 4,410 1,005 29.52 133 27.88 0.0090
2016-07-18 2016-06-30 13F BANKUNITED COM 06652K103 3,405 3,405 -22.79 104 -21.80 0.0070
2016-04-14 2016-03-31 13F BANKUNITED COM 06652K103 0 -1,101 -100.00 0 -100.00
2016-01-20 2015-12-31 13F BANKUNITED COM 06652K103 1,101 367 50.00 39 50.00 0.0031
2015-10-08 2015-09-30 13F BANKUNITED COM 06652K103 734 -7,247 -90.80 26 -90.91 0.0019
2015-07-08 2015-06-30 13F BANKUNITED COM 06652K103 7,981 6,080 319.83 286 361.29 0.0240
2015-04-21 2015-03-31 13F BANKUNITED COM 06652K103 1,901 1,901 62 0.0072
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F BANKUNITED CALL Call 300 14 n/a n/a n/a
2026-02-11 2025-12-31 13F BANKUNITED CALL Call 0 -100.00 0 n/a n/a n/a
2025-11-12 2025-09-30 13F BANKUNITED CALL Call 1,500 200.00 0 n/a n/a n/a
2025-08-05 2025-06-30 13F BANKUNITED CALL Call 500 400.00 0 n/a n/a n/a
2025-05-12 2025-03-31 13F BANKUNITED CALL Call 100 0.00 0 n/a n/a n/a
2025-02-11 2024-12-31 13F BANKUNITED CALL Call 100 0 n/a n/a n/a
2024-11-08 2024-09-30 13F BANKUNITED CALL Call 0 -100.00 0 n/a n/a n/a
2024-07-25 2024-06-30 13F BANKUNITED CALL Call 11,900 -4.80 0 n/a n/a n/a
2024-04-25 2024-03-31 13F BANKUNITED CALL Call 12,500 12,400.00 0 n/a n/a n/a
2024-02-02 2023-12-31 13F BANKUNITED CALL Call 100 -99.75 0 n/a n/a n/a
2023-11-01 2023-09-30 13F BANKUNITED CALL Call 39,800 -3.86 1 n/a n/a n/a
2023-08-04 2023-06-30 13F BANKUNITED CALL Call 41,400 780.85 1 n/a n/a n/a
2023-04-27 2023-03-31 13F BANKUNITED CALL Call 4,700 0 n/a n/a n/a
2023-02-02 2022-12-31 13F BANKUNITED CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F BANKUNITED CALL Call 400 0.00 13 -7.14 n/a n/a n/a
2022-08-03 2022-06-30 13F BANKUNITED CALL Call 400 -83.33 14 -86.67 n/a n/a n/a
2022-05-02 2022-03-31 13F BANKUNITED CALL Call 2,400 0.00 105 3.96 n/a n/a n/a
2022-02-23 2021-12-31 13F/A BANKUNITED CALL Call 2,400 -89.38 101 -89.70 n/a n/a n/a
2022-02-04 2021-12-31 13F BANKUNITED CALL Call 22,600 981 n/a n/a n/a
2021-10-28 2021-09-30 13F BANKUNITED CALL Call 22,600 0.00 981 1.76 n/a n/a n/a
2021-08-12 2021-06-30 13F BANKUNITED CALL Call 22,600 7,693.10 964 -24.33 n/a n/a n/a
2021-04-26 2021-03-31 13F BANKUNITED CALL Call 290 974.07 1,274 1,269.89 n/a n/a n/a
2021-02-02 2020-12-31 13F BANKUNITED CALL Call 27 -77.12 93 -63.95 n/a n/a n/a
2020-10-14 2020-09-30 13F BANKUNITED CALL Call 118 -34.44 258 -29.12 n/a n/a n/a
2020-07-13 2020-06-30 13F BANKUNITED CALL Call 180 140.00 364 160.00 n/a n/a n/a
2020-04-29 2020-03-31 13F BANKUNITED CALL Call 75 120.59 140 12.90 n/a n/a n/a
2020-02-05 2019-12-31 13F BANKUNITED CALL Call 34 -50.00 124 -45.61 n/a n/a n/a
2019-10-15 2019-09-30 13F BANKUNITED CALL Call 68 58.14 228 57.24 n/a n/a n/a
2019-07-26 2019-06-30 13F BANKUNITED CALL Call 43 230.77 145 237.21 n/a n/a n/a
2019-04-18 2019-03-31 13F BANKUNITED CALL Call 13 333.33 43 437.50 n/a n/a n/a
2019-01-16 2018-12-31 13F BANKUNITED CALL Call 3 200.00 8 166.67 n/a n/a n/a
2018-10-23 2018-09-30 13F BANKUNITED CALL Call 1 -85.71 3 -89.29 n/a n/a n/a
2018-07-30 2018-06-30 13F BANKUNITED CALL Call 7 40.00 28 833.33 n/a n/a n/a
2018-04-26 2018-03-31 13F BANKUNITED CALL Call 5 -94.90 0 -100.00 n/a n/a n/a
2018-01-10 2017-12-31 13F BANKUNITED CALL Call 98 6.52 17 1,600.00 n/a n/a n/a
2017-10-25 2017-09-30 13F BANKUNITED CALL Call 92 -57.01 1 -66.67 n/a n/a n/a
2017-07-12 2017-06-30 13F BANKUNITED CALL Call 214 -17.05 3 -89.66 n/a n/a n/a
2017-04-21 2017-03-31 13F BANKUNITED CALL Call 258 344.83 29 141.67 n/a n/a n/a
2017-01-11 2016-12-31 13F BANKUNITED CALL Call 58 12 n/a n/a n/a
2016-01-20 2015-12-31 13F BANKUNITED CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-10-08 2015-09-30 13F BANKUNITED CALL Call 7 0 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F BANKUNITED PUT Put 300 50.00 14 62.50 n/a n/a n/a
2026-02-11 2025-12-31 13F BANKUNITED PUT Put 200 -50.00 9 n/a n/a n/a
2025-11-12 2025-09-30 13F BANKUNITED PUT Put 400 0 n/a n/a n/a
2024-11-08 2024-09-30 13F BANKUNITED PUT Put 0 -100.00 0 n/a n/a n/a
2024-07-25 2024-06-30 13F BANKUNITED PUT Put 3,100 -22.50 0 n/a n/a n/a
2024-04-25 2024-03-31 13F BANKUNITED PUT Put 4,000 -70.59 0 n/a n/a n/a
2024-02-02 2023-12-31 13F BANKUNITED PUT Put 13,600 -79.94 0 -100.00 n/a n/a n/a
2023-11-01 2023-09-30 13F BANKUNITED PUT Put 67,800 21.72 2 0.00 n/a n/a n/a
2023-08-04 2023-06-30 13F BANKUNITED PUT Put 55,700 -31.57 1 0.00 n/a n/a n/a
2023-04-27 2023-03-31 13F BANKUNITED PUT Put 81,400 11,528.57 2 n/a n/a n/a
2023-02-02 2022-12-31 13F BANKUNITED PUT Put 700 0 n/a n/a n/a
2022-11-04 2022-09-30 13F BANKUNITED PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-03 2022-06-30 13F BANKUNITED PUT Put 300 -62.50 10 -71.43 n/a n/a n/a
2022-05-02 2022-03-31 13F BANKUNITED PUT Put 800 33.33 35 40.00 n/a n/a n/a
2022-02-23 2021-12-31 13F/A BANKUNITED PUT Put 600 -93.41 25 -93.67 n/a n/a n/a
2022-02-04 2021-12-31 13F BANKUNITED PUT Put 9,100 395 n/a n/a n/a
2021-10-28 2021-09-30 13F BANKUNITED PUT Put 9,100 0.00 395 1.80 n/a n/a n/a
2021-08-12 2021-06-30 13F BANKUNITED PUT Put 9,100 151,566.67 388 1,392.31 n/a n/a n/a
2021-04-26 2021-03-31 13F BANKUNITED PUT Put 6 -83.33 26 -79.20 n/a n/a n/a
2021-02-02 2020-12-31 13F BANKUNITED PUT Put 36 71.43 125 171.74 n/a n/a n/a
2020-10-14 2020-09-30 13F BANKUNITED PUT Put 21 50.00 46 64.29 n/a n/a n/a
2020-07-13 2020-06-30 13F BANKUNITED PUT Put 14 40.00 28 55.56 n/a n/a n/a
2020-04-29 2020-03-31 13F BANKUNITED PUT Put 10 -28.57 18 -35.71 n/a n/a n/a
2020-02-05 2019-12-31 13F BANKUNITED PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-10-15 2019-09-30 13F BANKUNITED PUT Put 2 -89.47 6 -90.62 n/a n/a n/a
2019-07-26 2019-06-30 13F BANKUNITED PUT Put 19 -57.78 64 -57.33 n/a n/a n/a
2019-04-18 2019-03-31 13F BANKUNITED PUT Put 45 -43.75 150 -37.24 n/a n/a n/a
2019-01-16 2018-12-31 13F BANKUNITED PUT Put 80 66.67 239 41.42 n/a n/a n/a
2018-10-23 2018-09-30 13F BANKUNITED PUT Put 48 4,700.00 169 4,125.00 n/a n/a n/a
2018-07-30 2018-06-30 13F BANKUNITED PUT Put 1 -97.92 4 -97.63 n/a n/a n/a
2018-01-10 2017-12-31 13F BANKUNITED PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-10-25 2017-09-30 13F BANKUNITED PUT Put 21 2,000.00 1 n/a n/a n/a
2017-07-12 2017-06-30 13F BANKUNITED PUT Put 1 -96.00 0 -100.00 n/a n/a n/a
2017-04-21 2017-03-31 13F BANKUNITED PUT Put 25 400.00 1 n/a n/a n/a
2017-01-11 2016-12-31 13F BANKUNITED PUT Put 5 -94.32 0 -100.00 n/a n/a n/a
2016-10-07 2016-09-30 13F BANKUNITED PUT Put 88 18.92 9 -43.75 n/a n/a n/a
2016-07-18 2016-06-30 13F BANKUNITED PUT Put 74 16 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.