Pulse Biosciences (PLSE)
Pulse Biosciences on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus.
3.0M
Short interest
settlement 2026-10-15
7.2
Days to cover
+1.6 days vs prior
62.4%
Short share of volume
2026-11-02
1
Fails to deliver
settlement 2026-10-14
Wed 4 Nov
Next earnings
estimated date
$200K
Insider flow, 90 days
4 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in PLSE is 3,004,624 shares, down 135,050 shares over the last month. Over the last 48 readings it ranged from 2,084,698 shares (15 November 2024) to 3,312,487 shares (30 September 2026). At the reported average volume of 417K shares a day that is 7.2 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 3,004,624 | -9.3% | 417,437 | 7.20 |
| 2026-09-30 | 3,312,487 | +5.5% | 590,533 | 5.61 |
| 2026-09-15 | 3,139,674 | +0.6% | 806,128 | 3.89 |
| 2026-08-31 | 3,121,131 | +12.8% | 392,846 | 7.94 |
| 2026-08-14 | 2,765,732 | -7.3% | 433,390 | 6.38 |
| 2026-07-31 | 2,983,029 | +3.2% | 426,187 | 7.00 |
| 2026-07-15 | 2,889,600 | +1.2% | 248,703 | 11.62 |
| 2026-06-30 | 2,856,310 | +1.4% | 433,595 | 6.59 |
| 2026-06-15 | 2,818,371 | -8.7% | 325,917 | 8.65 |
| 2026-05-29 | 3,086,437 | -4.1% | 294,877 | 10.47 |
| 2026-05-15 | 3,218,960 | +10.1% | 463,584 | 6.94 |
| 2026-04-30 | 2,924,507 | +0.6% | 241,429 | 12.11 |
| 2026-04-15 | 2,908,150 | -0.3% | 256,874 | 11.32 |
| 2026-03-31 | 2,915,409 | +11.1% | 246,427 | 11.83 |
| 2026-03-13 | 2,623,201 | +3.6% | 268,732 | 9.76 |
| 2026-02-27 | 2,532,229 | +0.0% | 400,991 | 6.31 |
| 2026-02-13 | 2,531,449 | -3.4% | 729,254 | 3.47 |
| 2026-01-30 | 2,620,331 | +1.9% | 141,866 | 18.47 |
| 2026-01-15 | 2,571,795 | -3.6% | 185,622 | 13.86 |
| 2025-12-31 | 2,668,535 | +2.9% | 195,235 | 13.67 |
| 2025-12-15 | 2,592,843 | +5.2% | 169,014 | 15.34 |
| 2025-11-28 | 2,464,906 | +1.8% | 197,517 | 12.48 |
| 2025-11-14 | 2,422,500 | +2.1% | 154,290 | 15.70 |
| 2025-10-31 | 2,371,998 | -3.2% | 118,886 | 19.95 |
| 2025-10-15 | 2,450,023 | -1.6% | 203,470 | 12.04 |
| 2025-09-30 | 2,488,982 | -2.0% | 233,968 | 10.64 |
| 2025-09-15 | 2,538,795 | +1.5% | 212,101 | 11.97 |
| 2025-08-29 | 2,501,849 | -1.8% | 131,268 | 19.06 |
| 2025-08-15 | 2,546,868 | +4.1% | 192,521 | 13.23 |
| 2025-07-31 | 2,445,714 | +0.3% | 137,426 | 17.80 |
| 2025-07-15 | 2,437,917 | -2.6% | 187,734 | 12.99 |
| 2025-06-30 | 2,503,141 | +2.1% | 196,192 | 12.76 |
| 2025-06-13 | 2,451,551 | +2.0% | 174,832 | 14.02 |
| 2025-05-30 | 2,403,584 | -2.2% | 152,508 | 15.76 |
| 2025-05-15 | 2,456,547 | +3.1% | 170,643 | 14.40 |
| 2025-04-30 | 2,383,118 | +1.2% | 154,244 | 15.45 |
| 2025-04-15 | 2,354,531 | -4.3% | 202,956 | 11.60 |
| 2025-03-31 | 2,459,503 | +6.2% | 263,392 | 9.34 |
| 2025-03-14 | 2,315,591 | +2.6% | 156,700 | 14.78 |
| 2025-02-28 | 2,256,058 | +2.5% | 147,844 | 15.26 |
| 2025-02-14 | 2,200,706 | +4.0% | 186,568 | 11.80 |
| 2025-01-31 | 2,116,132 | -0.7% | 130,685 | 16.19 |
| 2025-01-15 | 2,130,529 | +1.4% | 131,258 | 16.23 |
| 2024-12-31 | 2,100,024 | -3.1% | 168,786 | 12.44 |
| 2024-12-13 | 2,167,658 | +2.3% | 170,908 | 12.68 |
| 2024-11-29 | 2,119,400 | +1.7% | 168,150 | 12.60 |
| 2024-11-15 | 2,084,698 | -17.8% | 252,866 | 8.24 |
| 2024-10-31 | 2,537,485 | -7.8% | 115,565 | 21.96 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of PLSE volume is 62.4%, up 11.8 points over the last five sessions. Over the last 30 readings it ranged from 38.1% (25 September 2026) to 78.4% (8 October 2026). The latest reading is 5.6 points above the 30-session average of 56.8%, on 112K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 70K | 112K | 62.4% | 0 |
| 2026-10-30 | 74K | 172K | 43.1% | 0 |
| 2026-10-29 | 68K | 127K | 53.4% | 61 |
| 2026-10-28 | 49K | 123K | 39.6% | 167 |
| 2026-10-27 | 43K | 99K | 43.8% | 5 |
| 2026-10-26 | 55K | 110K | 50.6% | 22 |
| 2026-10-23 | 99K | 195K | 50.7% | 2,300 |
| 2026-10-22 | 143K | 204K | 70.2% | 0 |
| 2026-10-21 | 65K | 141K | 45.8% | 58 |
| 2026-10-20 | 104K | 152K | 68.6% | 321 |
| 2026-10-19 | 91K | 139K | 65.7% | 0 |
| 2026-10-16 | 84K | 138K | 60.6% | 0 |
| 2026-10-15 | 98K | 203K | 48.2% | 0 |
| 2026-10-14 | 106K | 174K | 61.0% | 93 |
| 2026-10-13 | 119K | 179K | 66.4% | 467 |
| 2026-10-12 | 90K | 172K | 52.5% | 0 |
| 2026-10-09 | 73K | 129K | 56.7% | 4,000 |
| 2026-10-08 | 95K | 122K | 78.4% | 632 |
| 2026-10-07 | 148K | 192K | 77.1% | 20 |
| 2026-10-06 | 122K | 161K | 75.7% | 400 |
| 2026-10-05 | 82K | 152K | 54.0% | 2,200 |
| 2026-10-02 | 115K | 205K | 56.3% | 1,087 |
| 2026-10-01 | 154K | 220K | 70.2% | 2,509 |
| 2026-09-30 | 109K | 227K | 48.1% | 500 |
| 2026-09-29 | 126K | 215K | 58.5% | 400 |
| 2026-09-28 | 79K | 142K | 55.9% | 400 |
| 2026-09-25 | 123K | 322K | 38.1% | 525 |
| 2026-09-24 | 142K | 288K | 49.4% | 0 |
| 2026-09-23 | 135K | 243K | 55.6% | 3,800 |
| 2026-09-22 | 66K | 135K | 48.6% | 1,419 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in PLSE is 1 share, down 1,407 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (4 August 2026) to 127,247 shares (4 September 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 1 | $48.54 | $49 |
| 2026-10-09 | 1,408 | $49.98 | $70K |
| 2026-10-08 | 69 | $49.09 | $3K |
| 2026-10-02 | 17,516 | $49.83 | $873K |
| 2026-10-01 | 214 | $49.92 | $11K |
| 2026-09-30 | 119 | $50.89 | $6K |
| 2026-09-28 | 1 | $51.63 | $52 |
| 2026-09-25 | 80,932 | $51.83 | $4.2M |
| 2026-09-23 | 16,074 | $52.69 | $847K |
| 2026-09-22 | 20,791 | $53.31 | $1.1M |
| 2026-09-21 | 13,250 | $53.87 | $714K |
| 2026-09-17 | 293 | $49.61 | $15K |
| 2026-09-16 | 7,160 | $55.20 | $395K |
| 2026-09-15 | 100 | $54.21 | $5K |
| 2026-09-14 | 17 | $53.11 | $903 |
| 2026-09-11 | 968 | $54.43 | $53K |
| 2026-09-08 | 209 | $53.24 | $11K |
| 2026-09-04 | 127,247 | $54.71 | $7.0M |
| 2026-09-02 | 1,717 | $52.09 | $89K |
| 2026-09-01 | 39,384 | $50.33 | $2.0M |
| 2026-08-19 | 23,790 | $46.00 | $1.1M |
| 2026-08-12 | 1,077 | $44.40 | $48K |
| 2026-08-11 | 1,000 | $41.51 | $42K |
| 2026-08-10 | 20,954 | $42.41 | $889K |
| 2026-08-07 | 1,003 | $38.24 | $38K |
| 2026-08-06 | 142 | $37.90 | $5K |
| 2026-08-05 | 38 | $38.17 | $1K |
| 2026-08-04 | 1 | $37.73 | $38 |
| 2026-08-03 | 20,209 | $35.13 | $710K |
| 2026-07-31 | 233 | $35.04 | $8K |
Insider trades
SEC Form 4, newest first. JSONInsiders at PLSE reported 4 open-market buys worth $200K in the last 90 days and no open-market sells. Latest filing: Teplitsky Liane Rae (Chief Operating Officer) on 2026-09-01.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-01 | Teplitsky Liane Rae | Chief Operating Officer | Buy | 1K | $49.95 | $50K | 4K |
| 2026-08-31 | Teplitsky Liane Rae | Chief Operating Officer | Buy | 1K | $48.80 | $50K | 3K |
| 2026-08-28 | Teplitsky Liane Rae | Chief Operating Officer | Buy | 1K | $48.35 | $50K | 2K |
| 2026-08-26 | Teplitsky Liane Rae | Chief Operating Officer | Buy | 1K | $48.23 | $50K | 1K |
| 2026-05-11 | LAVIOLETTE PAUL A | Chief Executive Officer | Buy | 15K | $19.69 | $295K | 16K |
| 2026-05-11 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 660K | $19.69 | $13.0M | 48.4M |
| 2026-05-11 | LAVIOLETTE PAUL A | Chief Executive Officer | Buy | 15K | $19.69 | $295K | 15K |
| 2026-05-11 | DUGGAN ROBERT W | Director, 10% owner | Buy | 660K | $19.69 | $13.0M | 48.2M |
| 2026-02-18 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 5K | $23.64 | $118K | 43K |
| 2026-02-18 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 5K | $1.53 | $8K | 48K |
| 2026-02-17 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $23.63 | $473K | 43K |
| 2026-02-17 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2026-02-13 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $23.53 | $471K | 43K |
| 2026-02-13 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2026-02-12 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $23.37 | $467K | 43K |
| 2026-02-12 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2026-02-11 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $25.20 | $504K | 43K |
| 2026-02-11 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2026-02-10 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $23.52 | $470K | 43K |
| 2026-02-10 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2026-02-09 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $21.45 | $429K | 43K |
| 2026-02-09 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2025-10-02 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 5K | $18.53 | $85K | 43K |
| 2025-10-02 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 5K | $1.53 | $7K | 48K |
| 2025-09-19 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 400 | $18.48 | $7K | 43K |
| 2025-09-19 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 400 | $1.53 | $612 | 44K |
| 2025-09-18 | Danahy Kevin Patrick | Chief Commercial Officer | Sell | 20K | $18.49 | $370K | 43K |
| 2025-09-18 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise or conversion | 20K | $1.53 | $31K | 63K |
| 2025-09-17 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 100K | $4.00 | $400K | 284K |
| 2025-09-17 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 62K | $4.00 | $246K | 184K |
| 2025-09-17 | UECKER DARRIN | Chief Technology Officer | Sell | 20K | $16.21 | $324K | 123K |
| 2025-09-17 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 20K | $4.00 | $80K | 143K |
| 2025-09-16 | UECKER DARRIN | Chief Technology Officer | Sell | 25K | $16.28 | $407K | 123K |
| 2025-09-16 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 25K | $4.00 | $100K | 148K |
| 2025-09-15 | UECKER DARRIN | Chief Technology Officer | Sell | 25K | $15.77 | $394K | 123K |
| 2025-09-15 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 25K | $4.00 | $100K | 148K |
| 2025-09-12 | UECKER DARRIN | Chief Technology Officer | Sell | 25K | $14.32 | $358K | 123K |
| 2025-09-12 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 25K | $4.00 | $100K | 148K |
| 2025-09-11 | UECKER DARRIN | Chief Technology Officer | Sell | 25K | $14.78 | $370K | 123K |
| 2025-09-11 | UECKER DARRIN | Chief Technology Officer | Exercise or conversion | 25K | $4.00 | $100K | 148K |
| 2025-09-10 | DUGGAN ROBERT W | Director, 10% owner | Buy | 35K | $14.66 | $508K | 47.6M |
| 2025-06-13 | UECKER DARRIN | Chief Technology Officer | Sell | 15K | $15.98 | $240K | 123K |
| 2025-06-12 | UECKER DARRIN | Chief Technology Officer | Sell | 15K | $16.40 | $246K | 138K |
| 2025-02-03 | Zanganeh Mahkam | Director | Exercise (in or at the money) | 30K | $11.00 | $331K | 725K |
| 2025-01-24 | Zanganeh Mahkam | Director | Exercise (in or at the money) | 30K | $11.00 | $331K | 695K |
| 2024-12-18 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 49K | $11.00 | $542K | 450K |
| 2024-12-18 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 69K | $11.00 | $759K | 630K |
| 2024-12-18 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 5.2M | $11.00 | $57.1M | 47.5M |
| 2024-12-13 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 55K | $17.18 | $949K | 42.3M |
| 2024-12-11 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 50K | $17.42 | $871K | 42.2M |
| 2024-12-11 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 6K | $16.74 | $101K | 42.2M |
| 2024-12-11 | Barrett Burke Thomas | Other | Sell | 50K | $17.42 | $871K | 63K |
| 2024-09-24 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | $11.00 | $4K | 8K |
| 2024-09-24 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | $11.00 | $4K | 8K |
| 2024-09-24 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 3K | $11.00 | $33K | 94K |
| 2024-09-24 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 1K | $11.00 | $14K | 21K |
| 2024-09-24 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | $11.00 | $4K | 9K |
| 2024-09-12 | DUGGAN ROBERT W | Director, 10% owner | Buy | 145K | $14.41 | $2.1M | 47.7M |
| 2024-09-11 | DUGGAN ROBERT W | Director, 10% owner | Buy | 13K | $14.77 | $189K | 47.6M |
| 2024-07-19 | Barrett Burke Thomas | President and CEO | Exercise (in or at the money) | 543 | $11.00 | $6K | 12K |
| 2024-07-19 | Barrett Burke Thomas | President and CEO | Exercise (in or at the money) | 543 | $11.00 | $6K | 12K |
| 2024-07-03 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | price not stated in the filing | not stated | 8K |
| 2024-07-03 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | price not stated in the filing | not stated | 8K |
| 2024-07-03 | Barrett Burke Thomas | President and CEO | Exercise (in or at the money) | 1K | price not stated in the filing | not stated | 11K |
| 2024-07-03 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 322 | price not stated in the filing | not stated | 8K |
| 2024-07-03 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 1K | price not stated in the filing | not stated | 20K |
| 2024-07-03 | Levinson Mitchell E. | Chief Strategy Officer | Exercise (in or at the money) | 3K | price not stated in the filing | not stated | 91K |
| 2024-07-03 | Danahy Kevin Patrick | Chief Commercial Officer | Exercise (in or at the money) | 650 | price not stated in the filing | not stated | 37K |
| 2024-07-03 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 69K | price not stated in the filing | not stated | 561K |
| 2024-07-03 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 5.2M | price not stated in the filing | not stated | 42.2M |
| 2024-07-03 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise (in or at the money) | 49K | price not stated in the filing | not stated | 401K |
| 2024-07-03 | Zanganeh Mahkam | Director | Exercise (in or at the money) | 60K | price not stated in the filing | not stated | 665K |
| 2024-05-20 | Barrett Burke Thomas | President and CEO | Buy | 10K | $8.56 | $86K | 10K |
| 2023-12-12 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 18K | $9.15 | $165K | 37.0M |
| 2023-12-11 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 90K | $9.36 | $844K | 37.0M |
| 2023-12-08 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 117K | $9.54 | $1.1M | 36.9M |
| 2023-12-07 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 75K | $9.19 | $688K | 36.8M |
| 2023-12-06 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise or conversion | 10K | $5.95 | $59K | 36.6M |
| 2023-12-06 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 83K | $9.06 | $750K | 36.7M |
| 2023-12-05 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 66K | $9.34 | $617K | 352K |
| 2023-12-04 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 27K | $10.38 | $280K | 286K |
| 2023-12-04 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise or conversion | 20K | $10.66 | $213K | 36.6M |
| 2023-12-04 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise or conversion | 20K | $10.66 | $217K | 36.6M |
| 2023-12-01 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 46K | $9.07 | $414K | 259K |
| 2023-11-30 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 153K | $9.06 | $1.4M | 213K |
| 2023-11-29 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 159K | $9.44 | $1.5M | 36.6M |
| 2023-11-29 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 60K | $9.21 | $553K | 60K |
| 2023-11-29 | DUGGAN ROBERT W | Director,TenPercentOwner | Exercise or conversion | 2K | $5.95 | $10K | 36.4M |
| 2023-11-28 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 124K | $8.98 | $1.1M | 36.4M |
| 2023-11-17 | DUGGAN ROBERT W | Director, 10% owner | Buy | 10K | $6.11 | $61K | 36.3M |
| 2023-11-17 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 241 | $6.10 | $1K | 36.2M |
| 2023-11-17 | DUGGAN ROBERT W | Director,TenPercentOwner | Buy | 10K | $6.09 | $61K | 36.3M |
| 2023-11-16 | Danahy Kevin Patrick | Chief Executive Officer | Buy | 5K | $6.52 | $31K | 35K |
| 2023-11-16 | Danahy Kevin Patrick | Chief Executive Officer | Buy | 12 | $6.50 | $78 | 36K |
| 2023-11-16 | Danahy Kevin Patrick | Chief Executive Officer | Buy | 600 | $6.51 | $4K | 36K |
| 2023-11-15 | Levinson Mitchell E. | Chief Strategy Officer | Buy | 2K | $5.80 | $14K | 3K |
| 2023-11-15 | Levinson Mitchell E. | Chief Strategy Officer | Buy | 100 | $5.90 | $590 | 834 |
| 2023-11-15 | Levinson Mitchell E. | Chief Strategy Officer | Buy | 2K | $5.85 | $14K | 3K |
| 2023-11-15 | Levinson Mitchell E. | Chief Strategy Officer | Buy | 100 | $5.94 | $594 | 834 |
| 2023-11-15 | Levinson Mitchell E. | Chief Strategy Officer | Buy | 2K | $5.94 | $14K | 3K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON3 Form 144 notices on file for PLSE worth $3.2M at the prices reported; 0 in the last 90 days worth $0. Latest: KEVIN DANAHY filed on 2026-02-12 to sell 50,000 shares ($1.3M) from 2026-02-12.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-02-12 | KEVIN DANAHYOfficer | 50K | $1.3M | 0.074% | 2026-02-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-09 | KEVIN DANAHYOfficer | 75K | $1.6M | 0.111% | 2026-02-09 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-09-18 | KEVIN DANAHYOfficer | 25K | $407K | 0.037% | 2025-09-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of PLSE in its latest filing, on Schedule 13D (active intent). The holder is ROBERT W. DUGGAN at 71.9% of the class (49,706,423 shares), filed 2026-05-13 for an event on 2026-05-11.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-05-13 | 13D/Ano. 17 | ROBERT W. DUGGANindividual | 49.7M | 71.9% | 2026-05-11 |
| 2026-05-13 | 13D/Ano. 17 | GENIUS 24C INCcorporation | 630K | 0.9% | 2026-05-11 |
| 2026-05-13 | 13D/Ano. 17 | BLAZON CORPORATIONcorporation | 450K | 0.7% | 2026-05-11 |
13F holders
Tracked managers holding PLSE at their latest 13F. JSON5 of the 30 tracked managers held PLSE at their latest 13F, $23.5M in total at quarter-end prices. Citadel Advisors is the largest at $17.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 627K | $17.4M | 0.00% | +484K |
| Point72 Asset Management | 2026-06-30 | 106K | $3.0M | 0.00% | new |
| D. E. Shaw & Co. | 2026-06-30 | 82K | $2.3M | 0.00% | +68K |
| Millennium Management | 2026-06-30 | 23K | $651K | 0.00% | -32K |
| AQR Capital Management | 2026-06-30 | 9K | $238K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Pulse Biosciences in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Pulse Biosciences (PLSE), SEC CIK 1625101, listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-02-12.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-05-13.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-06.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-01.JSON and CSV
- Company record
- EDGAR filing index for CIK 1625101Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of PLSE is sold short?
3,004,624 shares were held short at the 2026-10-15 settlement, 7.2 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is PLSE's daily short volume?
On 2026-11-02, 69,727 of the 111,715 PLSE shares reported to FINRA were sold short, 62.4% of the day's reported volume. Short volume is a flow for one day, not a position.
Does PLSE have fails to deliver?
The SEC's latest file shows 1 PLSE shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are PLSE insiders buying or selling?
Insiders at PLSE reported 4 open-market buys worth $200K in the last 90 days and no open-market sells. Latest filing: Teplitsky Liane Rae (Chief Operating Officer) on 2026-09-01.
Have PLSE insiders filed to sell?
3 Form 144 notices on file for PLSE worth $3.2M at the prices reported; 0 in the last 90 days worth $0. Latest: KEVIN DANAHY filed on 2026-02-12 to sell 50,000 shares ($1.3M) from 2026-02-12.
Who owns 5% or more of PLSE?
1 holder reports 5% or more of PLSE in its latest filing, on Schedule 13D (active intent). The holder is ROBERT W. DUGGAN at 71.9% of the class (49,706,423 shares), filed 2026-05-13 for an event on 2026-05-11.
Which tracked 13F managers own PLSE?
5 of the 30 tracked 13F managers held PLSE shares at their latest filing, $23.5M in all. The largest: Ken Griffin's Citadel Advisors (627K shares, $17.4M), Steve Cohen's Point72 Asset Management (106K shares, $3.0M), D. E. Shaw & Co. (82K shares, $2.3M), Izzy Englander's Millennium Management (23K shares, $651K), Cliff Asness's AQR Capital Management (9K shares, $238K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.