Pulse Biosciences, Inc.
DE ˙ DB ˙ US74587B1017
20,20 € ↓ -1,20 (-5,61%)
2026-06-05
DEL PRIS
SecurityDE:6L8 / Pulse Biosciences, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership22,902 shares
Latest Disclosed Value $ 494,441
Rhumbline Advisers reports 0.93% decrease in ownership of 6L8 / Pulse Biosciences, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 22,902 shares of Pulse Biosciences, Inc. (DE:6L8) valued at $391,624 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 23,118 shares of Pulse Biosciences, Inc.. This represents a change in shares of -0.93% during the quarter. The current value of the position is $462,620 USD.

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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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)
2026-05-12 2026-03-31 13F PULSE BIOSCIENCES COM 74587B101 22,902 -216 -0.93 494 55.84 0.0004
2026-02-13 2025-12-31 13F PULSE BIOSCIENCES COM 74587B101 23,118 -2,950 -11.32 317 -31.24 0.0003
2025-11-06 2025-09-30 13F PULSE BIOSCIENCES COM 74587B101 26,068 -980 -3.62 461 12.99 0.0004
2025-08-12 2025-06-30 13F PULSE BIOSCIENCES COM 74587B101 27,048 -327 -1.19 408 -7.27 0.0003
2025-05-29 2025-03-31 13F/A-1 PULSE BIOSCIENCES COM 74587B101 27,375 1,614 6.27 440 -1.79 0.0004
2025-04-08 2025-03-31 13F PULSE BIOSCIENCES COM 74587B101 27,375 1,614 440 0.0004
2025-05-29 2024-12-31 13F/A-1 PULSE BIOSCIENCES COM 74587B101 25,761 9 0.03 448 -0.67 0.0004
2025-01-30 2024-12-31 13F PULSE BIOSCIENCES COM 74587B101 25,761 9 448 0.0004
2024-11-12 2024-09-30 13F PULSE BIOSCIENCES COM 74587B101 25,752 23 0.09 452 57.14 0.0004
2024-08-01 2024-06-30 13F PULSE BIOSCIENCES COM 74587B101 25,729 1,608 6.67 288 36.67 0.0003
2024-05-09 2024-03-31 13F PULSE BIOSCIENCES COM 74587B101 24,121 724 3.09 210 -26.57 0.0002
2024-02-08 2023-12-31 13F PULSE BIOSCIENCES COM 74587B101 23,397 5,660 31.91 286 302.82 0.0003
2023-11-09 2023-09-30 13F PULSE BIOSCIENCES COM 74587B101 17,737 1,952 12.37 71 -37.17 0.0001
2023-08-08 2023-06-30 13F PULSE BIOSCIENCES COM 74587B101 15,785 15,785 113 0.0001
2022-08-11 2022-06-30 13F PULSE BIOSCIENCES COM 74587B101 0 -13,340 -100.00 0 -100.00
2022-05-12 2022-03-31 13F PULSE BIOSCIENCES COM 74587B101 13,340 -301 -2.21 65 -67.82 0.0001
2022-02-10 2021-12-31 13F PULSE BIOSCIENCES COM 74587B101 13,641 -252 -1.81 202 -32.67 0.0002
2021-11-12 2021-09-30 13F PULSE BIOSCIENCES COM 74587B101 13,893 593 4.46 300 37.61 0.0004
2021-08-05 2021-06-30 13F PULSE BIOSCIENCES COM 74587B101 13,300 -1,087 -7.56 218 -36.07 0.0003
2021-05-06 2021-03-31 13F PULSE BIOSCIENCES COM 74587B101 14,387 -1,140 -7.34 341 -7.84 0.0005
2021-02-10 2020-12-31 13F PULSE BIOSCIENCES COM 74587B101 15,527 975 6.70 370 115.12 0.0005
2020-11-12 2020-09-30 13F PULSE BIOSCIENCES COM 74587B101 14,552 -2,360 -13.95 172 -2.82 0.0003
2020-08-13 2020-06-30 13F PULSE BIOSCIENCES COM 74587B101 16,912 2,515 17.47 177 71.84 0.0003
2020-05-06 2020-03-31 13F PULSE BIOSCIENCES COM 74587B101 14,397 0 0.00 103 -46.63 0.0002
2020-02-05 2019-12-31 13F PULSE BIOSCIENCES COM 74587B101 14,397 68 0.47 193 -12.67 0.0003
2019-10-23 2019-09-30 13F PULSE BIOSCIENCES COM 74587B101 14,329 -105 -0.73 221 15.71 0.0004
2019-08-14 2019-06-30 13F PULSE BIOSCIENCES COM 74587B101 14,434 875 6.45 191 -20.08 0.0004
2019-05-01 2019-03-31 13F PULSE BIOSCIENCES COM 74587B101 13,559 -358 -2.57 239 50.31 0.0005
2019-01-31 2018-12-31 13F PULSE BIOSCIENCES COM 74587B101 13,917 13,917 159 0.0003
2017-11-06 2017-09-30 13F PULSE BIOSCIENCES COM 74587B101 0 -9,415 -100.00 0 -100.00
2017-08-02 2017-06-30 13F PULSE BIOSCIENCES COM 74587B101 9,415 9,415 325 0.0007
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.