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PDS Biotechnology (PDSB)

PDS Biotechnology on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq.

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3.4M

Short interest

settlement 2026-10-15

1.0

Days to cover

unchanged vs prior

29.3%

Short share of volume

2026-11-02

59,963

Fails to deliver

settlement 2026-10-13

Wed 11 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 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. JSON

As of 15 October 2026, short interest in PDSB is 3,387,210 shares, down 3,019,311 shares over the last month. Over the last 48 readings it ranged from 1,340,328 shares (30 June 2026) to 6,406,521 shares (15 September 2026). At the reported average volume of 16.4M shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-153,387,210+22.3%16,413,0841.00
2026-09-302,770,411-56.8%29,130,3591.00
2026-09-156,406,521+172.7%97,840,2791.00
2026-08-312,349,694+24.1%1,634,5541.44
2026-08-141,894,222+3.3%4,285,7191.00
2026-07-311,833,432+12.4%175,30310.46
2026-07-151,631,030+21.7%371,5414.39
2026-06-301,340,328-10.3%518,1462.59
2026-06-151,494,472-15.1%978,8171.53
2026-05-291,759,233-4.7%1,158,7461.52
2026-05-151,845,594+8.2%998,8881.85
2026-04-301,705,936-0.7%994,7721.71
2026-04-151,717,509-16.3%1,466,0661.17
2026-03-312,050,834+0.8%622,9263.29
2026-03-132,035,289-24.3%221,7859.18
2026-02-272,688,806+11.1%396,2156.79
2026-02-132,420,520+10.6%573,6164.22
2026-01-302,189,274+0.8%837,8122.61
2026-01-152,172,765+61.8%898,9132.42
2025-12-311,343,277-15.8%442,6363.03
2025-12-151,595,913-12.2%750,9692.13
2025-11-281,817,484+10.9%503,4313.61
2025-11-141,639,246+5.9%1,371,7101.20
2025-10-311,548,108+15.3%1,064,0931.45
2025-10-151,343,189-26.0%484,1272.77
2025-09-301,814,139+3.5%558,4383.25
2025-09-151,752,765-5.1%403,3394.35
2025-08-291,847,747-3.5%718,4502.57
2025-08-151,915,584-15.8%354,8625.40
2025-07-312,273,714-7.0%490,1744.64
2025-07-152,444,643-15.0%474,5445.15
2025-06-302,877,317+44.8%460,8136.24
2025-06-131,987,724-31.5%668,3372.97
2025-05-302,903,507+1.0%1,180,2852.46
2025-05-152,875,457-3.2%223,30212.88
2025-04-302,969,882-1.1%205,20214.47
2025-04-153,003,485-4.5%311,9919.63
2025-03-313,144,339-18.4%301,90110.42
2025-03-143,855,237-17.5%1,308,4492.95
2025-02-284,674,534+20.7%1,522,4303.07
2025-02-143,872,457-3.4%310,23112.48
2025-01-314,010,419-2.5%187,40821.40
2025-01-154,114,977+1.3%273,00915.07
2024-12-314,063,028-3.9%361,68211.23
2024-12-134,225,576+8.9%455,4159.28
2024-11-293,880,499+0.1%351,94411.03
2024-11-153,874,751-13.3%686,2135.65
2024-10-314,470,783-6.9%311,41314.36

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of PDSB volume is 29.3%, unchanged over the last five sessions. Over the last 30 readings it ranged from 20.5% (30 October 2026) to 58.9% (27 October 2026). The latest reading is 15.1 points below the 30-session average of 44.4%, on 2.4M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-02707K2.4M29.3%77,485
2026-10-30644K3.1M20.5%48,391
2026-10-292.0M4.8M41.5%65,401
2026-10-285.3M10.5M50.9%93,197
2026-10-274.5M7.6M58.9%37,269
2026-10-26405K1.4M29.3%0
2026-10-23882K1.7M51.0%279,245
2026-10-221.5M3.2M48.3%7,127
2026-10-215.9M10.8M55.1%27,457
2026-10-20999K2.4M41.8%262,179
2026-10-192.3M6.2M36.2%1,015,284
2026-10-162.2M4.9M46.0%595,010
2026-10-152.5M6.5M38.8%535,276
2026-10-142.8M5.8M47.4%255,670
2026-10-136.3M11.8M53.3%171,194
2026-10-124.8M9.4M51.7%145,460
2026-10-095.0M11.3M44.1%27,960
2026-10-081.1M2.9M38.8%27,708
2026-10-071.5M3.8M39.8%295,321
2026-10-064.7M11.2M41.8%110,302
2026-10-0529.6M59.2M50.1%375,029
2026-10-021.1M2.4M46.2%6,805
2026-10-01814K2.6M31.2%14,601
2026-09-30937K2.9M32.0%130
2026-09-29729K1.8M39.6%2,328
2026-09-281.3M2.7M49.2%23,757
2026-09-251.5M2.6M58.7%20,823
2026-09-241.9M3.5M55.5%483,892
2026-09-233.1M5.6M55.0%116,965
2026-09-228.0M15.7M50.9%168,815

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 13 October 2026, the fails-to-deliver balance in PDSB is 59,963 shares, up 59,643 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (25 August 2026) to 2,847,765 shares (9 September 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-10-1359,963$1.52$91K
2026-10-09320$1.02$326
2026-10-0713,886$1.05$15K
2026-10-06716$1.20$859
2026-10-012,018$0.75$2K
2026-09-2823,372$0.80$19K
2026-09-239,901$0.91$9K
2026-09-22133,031$0.84$112K
2026-09-2124,310$0.81$20K
2026-09-1866,709$0.84$56K
2026-09-1726,814$0.99$27K
2026-09-16976,009$0.59$576K
2026-09-15246,775$0.40$99K
2026-09-149,398$0.29$3K
2026-09-1120,202$0.32$6K
2026-09-10685,456$0.29$199K
2026-09-092,847,765$0.30$854K
2026-09-083,206$0.22$705
2026-09-04140$0.22$31
2026-09-0132,065$0.21$7K
2026-08-3170,239$0.21$15K
2026-08-2639,972$0.22$9K
2026-08-254$0.22$1
2026-08-24200$0.22$44
2026-08-18327$0.22$72
2026-08-128,835$0.26$2K
2026-08-0730$0.75$23
2026-08-042,106$0.71$1K
2026-07-23822$0.72$592
2026-07-158,196$0.75$6K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for PDSB in the last 90 days. The most recent filings are listed below. Latest filing: Glover Stephen C. (Director) on 2025-02-28.

DateInsiderTitleTypeSharesPriceValueOwned after
2025-02-28Glover Stephen C.DirectorBuy15K$1.66$25K79K
2025-02-28Freitag Gregory GeneDirectorBuy15K$1.66$25K61K
2022-12-02BEDU-ADDO FRANKPresident/CEOExercise or conversion220K$6.57$1.4M866K
2022-12-02BEDU-ADDO FRANKPresident/CEOTax withholding175K$9.78$1.7M691K
2021-12-13HILL MATTHEW CChief Financial OfficerBuy100$9.00$9004K
2021-12-13HILL MATTHEW CChief Financial OfficerBuy100$9.00$9004K
2021-12-13HILL MATTHEW CChief Financial OfficerBuy400$8.90$4K4K
2021-12-13HILL MATTHEW CChief Financial OfficerBuy3K$9.00$23K3K
2021-06-16Bloomquist DeLyle WOtherExercise or conversion3K$5.99$18K184K
2021-06-16Bloomquist DeLyle WOtherBuy10K$9.88$99K194K
2021-06-15Freitag Gregory GeneDirectorBuy6K$8.50$50K46K
2021-06-15VAN VOORHEES SETHChief Financial OfficerBuy18K$8.50$150K18K
2021-06-15Ali-Jackson KamilDirectorBuy12K$8.50$100K12K
2021-06-15Glover Steve CDirectorBuy6K$8.50$50K64K
2021-06-15BEDU-ADDO FRANKPresident/CEOExercise or conversion53K$6.57$349K674K
2021-06-15BEDU-ADDO FRANKPresident/CEOTax withholding27K$12.86$349K647K
2020-02-14Glover Steve CDirectorGrant38K$1.30$50K58K
2020-02-14Saik AndrewChief Financial OfficerGrant38K$1.30$50K43K
2020-02-14SYKES RICHARDDirectorGrant385K$1.30$500K445K
2020-02-14Freitag Gregory GeneDirectorGrant38K$1.30$50K40K

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.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

2 holders report 5% or more of PDSB in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Patrick Soon-Shiong at 19.9% of the class (20,336,335 shares), filed 2026-09-21 for an event on 2026-09-14.

FiledFormHolderSharesOf classEvent
2026-09-2113DPatrick Soon-Shiongindividual20.3M19.9%2026-09-14
2026-09-2113DNant Capital, LLCinvestment company20.3M19.9%2026-09-14

13F holders

Tracked managers holding PDSB at their latest 13F. JSON

2 of the 30 tracked managers held PDSB at their latest 13F, $508K in total at quarter-end prices. Citadel Advisors is the largest at $285K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-30324K$285K0.00%new
Renaissance Technologies2026-06-30252K$222K0.00%+31K

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

PDS Biotechnology 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 PDS Biotechnology (PDSB), SEC CIK 1472091, listed on Nasdaq. 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 2026-10-13.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 2026-09-21.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 2025-11-12.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 2025-02-28.JSON and CSV
Company record
EDGAR filing index for CIK 1472091Ticker, 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.

Other company pages

Datasets

Frequently Asked Questions

How much of PDSB is sold short?
3,387,210 shares were held short at the 2026-10-15 settlement, 1.0 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 PDSB's daily short volume?
On 2026-11-02, 707,143 of the 2,414,131 PDSB shares reported to FINRA were sold short, 29.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does PDSB have fails to deliver?
The SEC's latest file shows 59,963 PDSB shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.
Are PDSB insiders buying or selling?
No open-market insider trades were reported for PDSB in the last 90 days. The most recent filings are listed below. Latest filing: Glover Stephen C. (Director) on 2025-02-28.
Who owns 5% or more of PDSB?
2 holders report 5% or more of PDSB in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Patrick Soon-Shiong at 19.9% of the class (20,336,335 shares), filed 2026-09-21 for an event on 2026-09-14.
Which tracked 13F managers own PDSB?
2 of the 30 tracked 13F managers held PDSB shares at their latest filing, $508K in all. The largest: Ken Griffin's Citadel Advisors (324K shares, $285K), Renaissance Technologies (252K shares, $222K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.