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HowShorted

PDSB short interest Nasdaq Capital Market

PDS Biotechnology Corporation. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
6,406,521
vs previous settlement
+4,056,827 (+172.7%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for PDSB shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for PDSB days to cover

Fails to deliver

The SEC's fails-to-deliver figure for PDSB: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
9,398
14 Sep 2026
Highest in window
2,847,765
9 Sep 2026
Days with a balance
70
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for PDS Biotechnology Corporation fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 2.8M shares.

History

Every FINRA settlement we hold for PDSB, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20266,406,521+4,056,8271.00
31 Aug 20262,349,694+455,4721.44
14 Aug 20261,894,222+60,7901.00
31 Jul 20261,833,432+202,40210.46
15 Jul 20261,631,030+290,7024.39
30 Jun 20261,340,328โˆ’154,1442.59
15 Jun 20261,494,472โˆ’264,7611.53
29 May 20261,759,233โˆ’86,3611.52
15 May 20261,845,594+139,6581.85
30 Apr 20261,705,936โˆ’11,5731.71
15 Apr 20261,717,509โˆ’333,3251.17
31 Mar 20262,050,834+15,5453.29
13 Mar 20262,035,289โˆ’653,5179.18
27 Feb 20262,688,806+268,2866.79
13 Feb 20262,420,520+231,2464.22
30 Jan 20262,189,274+16,5092.61
15 Jan 20262,172,765+829,4882.42
31 Dec 20251,343,277โˆ’252,6363.03
15 Dec 20251,595,913โˆ’221,5712.13
28 Nov 20251,817,484+178,2383.61
14 Nov 20251,639,246+91,1381.20
31 Oct 20251,548,108+204,9191.45
15 Oct 20251,343,189โˆ’470,9502.77
30 Sep 20251,814,139+61,3743.25
15 Sep 20251,752,765โˆ’94,9824.35
29 Aug 20251,847,747โˆ’67,8372.57
15 Aug 20251,915,584โˆ’358,1305.40
31 Jul 20252,273,714โˆ’170,9294.64
15 Jul 20252,444,643โˆ’432,6745.15
30 Jun 20252,877,317+889,5936.24
13 Jun 20251,987,724โˆ’915,7832.97
30 May 20252,903,507+28,0502.46
15 May 20252,875,457โˆ’94,42512.88
30 Apr 20252,969,882โˆ’33,60314.47
15 Apr 20253,003,485โˆ’140,8549.63
31 Mar 20253,144,339โˆ’710,89810.42
14 Mar 20253,855,237โˆ’819,2972.95
28 Feb 20254,674,534+802,0773.07
14 Feb 20253,872,457โˆ’137,96212.48
31 Jan 20254,010,419โˆ’104,55821.40
15 Jan 20254,114,977+51,94915.07
31 Dec 20244,063,028โˆ’162,54811.23
13 Dec 20244,225,576+345,0779.28
29 Nov 20243,880,499+5,74811.03
15 Nov 20243,874,751โˆ’596,0325.65
31 Oct 20244,470,783โˆ’329,65914.36
15 Oct 20244,800,442+6,59310.72
30 Sep 20244,793,849+184,98914.40
13 Sep 20244,608,860โˆ’152,32920.07
30 Aug 20244,761,189โˆ’266,04825.08
15 Aug 20245,027,237โˆ’42,53617.07
31 Jul 20245,069,773โˆ’630,90115.74
15 Jul 20245,700,674โˆ’1,294,9589.34
28 Jun 20246,995,632+250,5397.06
14 Jun 20246,745,093+36,48214.92
31 May 20246,708,611โˆ’139,79613.33
15 May 20246,848,407โˆ’15,6138.56
30 Apr 20246,864,020โˆ’280,87811.01
15 Apr 20247,144,898+992,8237.95
28 Mar 20246,152,075+644,9554.37
15 Mar 20245,507,120+473,8305.07
29 Feb 20245,033,290+22,2315.46
15 Feb 20245,011,059โˆ’267,81010.18
31 Jan 20245,278,869+100,0156.91
12 Jan 20245,178,854+267,0388.03
29 Dec 20234,911,816+224,5268.69
15 Dec 20234,687,290โˆ’172,14110.99
30 Nov 20234,859,431โˆ’394,0558.50
15 Nov 20235,253,486โˆ’261,7957.94
31 Oct 20235,515,281โˆ’375,68217.24
13 Oct 20235,890,963+619,9249.14
29 Sep 20235,271,039+704,22214.35
15 Sep 20234,566,817+277,63014.53
31 Aug 20234,289,187+314,0737.11
15 Aug 20233,975,114+19,7347.32
31 Jul 20233,955,380โˆ’232,9216.24
14 Jul 20234,188,301+306,2867.76
30 Jun 20233,882,015+943,7334.02
15 Jun 20232,938,282+263,1631.32
31 May 20232,675,119+569,0952.86
15 May 20232,106,024โˆ’4,27210.21
28 Apr 20232,110,296+70,1837.90
14 Apr 20232,040,113+45,2505.37
31 Mar 20231,994,863+149,7294.88
15 Mar 20231,845,134+21,2074.36
28 Feb 20231,823,927+242,0894.83
15 Feb 20231,581,838โˆ’53,3883.48
31 Jan 20231,635,226+135,6482.64
13 Jan 20231,499,578+79,0941.79
30 Dec 20221,420,484+360,0301.42
15 Dec 20221,060,454โˆ’24,8712.14
30 Nov 20221,085,325โˆ’395,5561.13
15 Nov 20221,480,881+79,2361.00
31 Oct 20221,401,645+88,7983.54
14 Oct 20221,312,847+9,4574.43
30 Sep 20221,303,390โˆ’83,2939.33
15 Sep 20221,386,683โˆ’96,32810.72
31 Aug 20221,483,011โˆ’20,2497.36
15 Aug 20221,503,260โˆ’170,5004.66
29 Jul 20221,673,760โˆ’87,5596.09
15 Jul 20221,761,319โˆ’123,7866.70
30 Jun 20221,885,105+7,6286.61
15 Jun 20221,877,477+313,5331.00
31 May 20221,563,944+61,5822.91
13 May 20221,502,362+36,6573.71
29 Apr 20221,465,705+12,1248.73
14 Apr 20221,453,581+10,8556.81
31 Mar 20221,442,726+15,1836.49
15 Mar 20221,427,543+177,2916.46
28 Feb 20221,250,252+420,7633.31
15 Feb 2022829,489+203,6161.75
31 Jan 2022625,873โˆ’36,1011.19
14 Jan 2022661,974+30,3482.25
31 Dec 2021631,626โˆ’75,1801.73
15 Dec 2021706,806+177,0491.83
30 Nov 2021529,757โˆ’190,5441.46
15 Nov 2021720,301โˆ’51,7041.68
29 Oct 2021772,005โˆ’40,6992.27
15 Oct 2021812,704+323,6171.63
30 Sep 2021489,087+45,2181.00
15 Sep 2021443,869โˆ’7,2021.18
31 Aug 2021451,071+47,9161.00
13 Aug 2021403,155โˆ’96,4861.07
30 Jul 2021499,641โˆ’114,8111.05
15 Jul 2021614,452โˆ’221,9711.00
30 Jun 2021836,423โˆ’384,2621.00
15 Jun 20211,220,685สณ+206,8751.00
28 May 20211,013,810+163,3081.00
14 May 2021850,502+184,8781.51
30 Apr 2021665,624โˆ’271,4761.46
15 Apr 2021937,100+632,1441.73
31 Mar 2021304,956โˆ’511,3411.00
15 Mar 2021816,297+345,9881.00
26 Feb 2021470,309+131,4271.00
12 Feb 2021338,882โˆ’120,0281.00
29 Jan 2021458,910+73,8621.20
15 Jan 2021385,048โˆ’263,8341.10
31 Dec 2020648,882+183,4771.64
15 Dec 2020465,405+35,0381.00
30 Nov 2020430,367+40,7971.83
13 Nov 2020389,570+38,2471.00
30 Oct 2020351,323+140,7011.18
15 Oct 2020210,622โˆ’99,4191.00
30 Sep 2020310,041โˆ’231,9911.00
15 Sep 2020542,032โˆ’160,8421.32
31 Aug 2020702,874+5,6631.00
14 Aug 2020697,211โˆ’10,8401.00
31 Jul 2020708,051+32,8711.00
15 Jul 2020675,180+497,4141.00
30 Jun 2020177,766+141,4531.00
15 Jun 202036,313+8,8231.00
29 May 202027,490+3,9621.00
15 May 202023,528โˆ’30,3861.00
30 Apr 202053,914+38,8421.00
15 Apr 202015,072โˆ’29,7931.00
31 Mar 202044,865โˆ’27,5001.00
13 Mar 202072,365+22,7221.00
28 Feb 202049,643โˆ’56,4771.00
14 Feb 2020106,120โˆ’75,6841.00
31 Jan 2020181,804+77,6884.53
15 Jan 2020104,116โˆ’6,0353.65
31 Dec 2019110,151+73,8081.00
13 Dec 201936,343+3,0361.00
29 Nov 201933,307โˆ’16,6471.27
15 Nov 201949,954โˆ’39,8471.00
31 Oct 201989,801+35,5091.00
15 Oct 201954,292+3,6031.00
30 Sep 201950,689โˆ’17,2202.19
13 Sep 201967,909โˆ’3,3519.54
30 Aug 201971,260โˆ’16,7467.91
15 Aug 201988,006โˆ’7,4655.81
31 Jul 201995,471โˆ’21,1166.01
15 Jul 2019116,587โˆ’18,3578.48
28 Jun 2019134,944+20,7684.53
14 Jun 2019114,176+11,3406.48
31 May 2019102,836+52,4421.00
15 May 201950,394โˆ’4,1601.00
30 Apr 201954,554+12,4391.93
15 Apr 201942,115+2,4521.76
29 Mar 201939,663สณโ€“1.61

Scroll inside the table for earlier settlements, back to 29 Mar 2019.

Questions

Frequently asked questions

What is PDSB's short interest?
6,406,521 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 4,056,827 from the previous settlement.
Why is there no percentage for PDSB?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is PDSB's days to cover?
1.00 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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