Enlivex Ltd.

SecurityENLV / Enlivex Ltd.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership2,615 shares
Latest Disclosed Value $ 2,432
Simplex Trading, Llc ownership in ENLV / Enlivex Ltd.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 2,615 shares of Enlivex Ltd. (US:ENLV) valued at $2,432 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 8,878 shares of Enlivex Ltd.. This represents a change in shares of -70.55% during the quarter. The current value of the position is $2,223 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (ENLV) in the form of stock options. The firm currently holds call options representing 4,000 of underlying shares valued at $3,720 USD and put options representing 100 of underlying shares valued at $93 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.

ENLV / Enlivex Ltd. 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 ENLIVEX COM M4130Y106 2,615 -6,263 -70.55 2 -66.67 0.0000
2026-02-11 2025-12-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 8,878 8,878 6 0.0000
2025-08-05 2025-06-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 0 -1,063 -100.00 0 0.0000
2025-05-12 2025-03-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 1,063 -2,303 -68.42 0 0.0000
2025-02-11 2024-12-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 3,366 3,366 0 0.0000
2024-07-25 2024-06-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 0 -18,261 -100.00 0 0.0000
2024-04-25 2024-03-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 18,261 18,261 0 0.0000
2023-11-01 2023-09-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 0 -12,675 -100.00 0 0.0000
2023-08-04 2023-06-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 12,675 -38 -0.30 0 0.0000
2023-04-27 2023-03-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 12,713 4,560 55.93 0 0.0000
2023-02-02 2022-12-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 8,153 3,027 59.05 0 -100.00 0.0000
2022-11-04 2022-09-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 5,126 821 19.07 21 10.53 0.0000
2022-08-03 2022-06-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 4,305 4,305 19 0.0000
2022-05-02 2022-03-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 0 -10,164 -100.00 0 -100.00
2022-02-23 2021-12-31 13F/A-1 ENLIVEX THERAPEUTICS COM M4130Y106 10,164 10,164 63 0.0001
2021-08-12 2021-06-30 13F ENLIVEX THERAPEUTICS COM M4130Y106 0 -8,285 -100.00 0 -100.00
2021-04-26 2021-03-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 8,285 6,897 496.90 91 727.27 0.0002
2021-02-02 2020-12-31 13F ENLIVEX THERAPEUTICS COM M4130Y106 1,388 1,388 11 0.0000
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 ENLIVEX CALL Call 4,000 -65.52 4 -62.50 n/a n/a n/a
2026-02-11 2025-12-31 13F ENLIVEX THERAPEUTICS CALL Call 11,600 -41.71 8 n/a n/a n/a
2025-11-12 2025-09-30 13F ENLIVEX THERAPEUTICS CALL Call 19,900 804.55 0 n/a n/a n/a
2025-08-05 2025-06-30 13F ENLIVEX THERAPEUTICS CALL Call 2,200 0.00 0 n/a n/a n/a
2025-05-12 2025-03-31 13F ENLIVEX THERAPEUTICS CALL Call 2,200 83.33 0 n/a n/a n/a
2025-02-11 2024-12-31 13F ENLIVEX THERAPEUTICS CALL Call 1,200 33.33 0 n/a n/a n/a
2024-11-08 2024-09-30 13F ENLIVEX THERAPEUTICS CALL Call 900 -43.75 0 n/a n/a n/a
2024-07-25 2024-06-30 13F ENLIVEX THERAPEUTICS CALL Call 1,600 -83.33 0 n/a n/a n/a
2024-04-25 2024-03-31 13F ENLIVEX THERAPEUTICS CALL Call 9,600 540.00 0 n/a n/a n/a
2024-02-02 2023-12-31 13F ENLIVEX THERAPEUTICS CALL Call 1,500 -31.82 0 n/a n/a n/a
2023-11-01 2023-09-30 13F ENLIVEX THERAPEUTICS CALL Call 2,200 1,000.00 0 n/a n/a n/a
2023-08-04 2023-06-30 13F ENLIVEX THERAPEUTICS CALL Call 200 100.00 0 n/a n/a n/a
2023-04-27 2023-03-31 13F ENLIVEX THERAPEUTICS CALL Call 100 0.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F ENLIVEX THERAPEUTICS CALL Call 100 0 n/a n/a n/a
2022-11-04 2022-09-30 13F ENLIVEX THERAPEUTICS CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-03 2022-06-30 13F ENLIVEX THERAPEUTICS CALL Call 3,100 -6.06 14 -22.22 n/a n/a n/a
2022-05-02 2022-03-31 13F ENLIVEX THERAPEUTICS CALL Call 3,300 -70.27 18 -73.91 n/a n/a n/a
2022-02-23 2021-12-31 13F/A ENLIVEX THERAPEUTICS CALL Call 11,100 44.16 69 1.47 n/a n/a n/a
2022-02-04 2021-12-31 13F ENLIVEX THERAPEUTICS CALL Call 7,700 68 n/a n/a n/a
2021-10-28 2021-09-30 13F ENLIVEX THERAPEUTICS CALL Call 7,700 0.00 68 0.00 n/a n/a n/a
2021-08-12 2021-06-30 13F ENLIVEX THERAPEUTICS CALL Call 7,700 5,210.34 68 -57.50 n/a n/a n/a
2021-04-26 2021-03-31 13F ENLIVEX THERAPEUTICS CALL Call 145 229.55 160 332.43 n/a n/a n/a
2021-02-02 2020-12-31 13F ENLIVEX THERAPEUTICS CALL Call 44 37 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 ENLIVEX PUT Put 100 -66.67 0 n/a n/a n/a
2026-02-11 2025-12-31 13F ENLIVEX THERAPEUTICS PUT Put 300 0 n/a n/a n/a
2023-04-27 2023-03-31 13F ENLIVEX THERAPEUTICS PUT Put 0 -100.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F ENLIVEX THERAPEUTICS PUT Put 100 -66.67 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F ENLIVEX THERAPEUTICS PUT Put 300 1 n/a n/a n/a
2022-05-02 2022-03-31 13F ENLIVEX THERAPEUTICS PUT Put 0 -100.00 0 n/a n/a n/a
2022-02-23 2021-12-31 13F/A ENLIVEX THERAPEUTICS PUT Put 100 -99.31 0 -100.00 n/a n/a n/a
2022-02-04 2021-12-31 13F ENLIVEX THERAPEUTICS PUT Put 14,400 128 n/a n/a n/a
2021-10-28 2021-09-30 13F ENLIVEX THERAPEUTICS PUT Put 14,400 0.00 128 0.00 n/a n/a n/a
2021-08-12 2021-06-30 13F ENLIVEX THERAPEUTICS PUT Put 14,400 6,188.21 128 -49.41 n/a n/a n/a
2021-04-26 2021-03-31 13F ENLIVEX THERAPEUTICS PUT Put 229 288.14 253 416.33 n/a n/a n/a
2021-02-02 2020-12-31 13F ENLIVEX THERAPEUTICS PUT Put 59 49 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.