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iSpecimen (ISPC)

iSpecimen on one page: short interest, daily short volume, fails to deliver, earnings dates and insider trades. Listed on Nasdaq.

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159K

Short interest

settlement 2026-10-15

2.0

Days to cover

+1.0 days vs prior

33.7%

Short share of volume

2026-11-02

3,958

Fails to deliver

settlement 2026-10-09

Tue 6 Aug

Last earnings

reported (8-K Item 2.02)

$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 ISPC is 158,754 shares, down 61,968 shares over the last month. Over the last 48 readings it ranged from 13,430 shares (28 November 2025) to 5,529,018 shares (15 April 2026). The latest reading sits at the bottom of that range. At the reported average volume of 80K shares a day that is 2.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-15158,754-1.4%79,5002.00
2026-09-30160,992-27.1%594,7511.00
2026-09-15220,722+53.3%2,206,6681.00
2026-08-31143,980-3.8%929,5421.00
2026-08-14149,705-17.5%77,5501.93
2026-07-31181,533-1.6%47,1943.85
2026-07-15184,505+17.8%153,3701.20
2026-06-30156,650-14.3%68,2392.30
2026-06-15182,762-24.2%109,4171.67
2026-05-29241,056+113.6%386,1181.00
2026-05-15112,840+119.2%1,080,3901.00
2026-04-3051,489-99.1%1,959,2921.00
2026-04-155,529,018+852.0%52,965,6311.00
2026-03-31580,752-81.1%7,469,2301.00
2026-03-133,073,818+227.2%31,293,2061.00
2026-02-27939,560+4.3%1,508,9551.00
2026-02-13900,640+186.5%2,898,1531.00
2026-01-30314,312+1.0%494,1011.00
2026-01-15311,313-72.6%1,172,0211.00
2025-12-311,136,955+272.6%3,720,1471.00
2025-12-15305,108+2171.8%364,2221.00
2025-11-2813,430-80.2%749,3671.00
2025-11-1467,653-53.3%181,6171.00
2025-10-31144,840-18.8%334,4861.00
2025-10-15178,434-39.2%761,5631.00
2025-09-30293,546-83.8%1,758,5441.00
2025-09-151,817,686+372.1%38,472,3711.00
2025-08-29385,045+117.1%2,038,1401.00
2025-08-15177,341-23.4%511,0991.00
2025-07-31231,409+385.9%439,6081.00
2025-07-1547,626+7.6%96,3341.00
2025-06-3044,278+6.9%55,9811.00
2025-06-1341,406-37.9%52,5641.00
2025-05-3066,622+112.3%33,9801.96
2025-05-1531,386-49.6%57,8901.00
2025-04-3062,240+7.7%29,2072.13
2025-04-1557,815+65.8%228,9681.00
2025-03-3134,878-56.3%44,1591.00
2025-03-1479,731-33.0%74,5511.07
2025-02-28119,082+302.8%2,950,4041.00
2025-02-1429,561-23.8%140,0691.00
2025-01-3138,798-29.4%1,811,8901.00
2025-01-1554,940-23.3%95,5141.00
2024-12-3171,667-24.8%456,3201.00
2024-12-1395,320+194.6%339,3361.00
2024-11-2932,359-56.9%114,8151.00
2024-11-1575,022+82.2%732,3281.00
2024-10-3141,179+388.7%982,2461.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of ISPC volume is 33.7%, down 2.0 points over the last five sessions. Over the last 30 readings it ranged from 1.6% (23 October 2026) to 69.2% (24 September 2026). The latest reading is 3.3 points above the 30-session average of 30.4%, on 26K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-029K26K33.7%0
2026-10-3075K173K43.4%180
2026-10-297K31K22.6%0
2026-10-281K20K7.2%0
2026-10-278214K21.2%0
2026-10-2618K51K35.7%0
2026-10-2343126K1.6%0
2026-10-223K19K15.3%0
2026-10-213K42K7.3%0
2026-10-2035K97K35.8%0
2026-10-1910K23K41.9%200
2026-10-162K24K6.2%0
2026-10-1527K52K51.9%0
2026-10-147K24K29.6%0
2026-10-139K30K28.7%0
2026-10-1215K26K56.4%0
2026-10-096K27K21.6%0
2026-10-0822K46K48.6%50
2026-10-073K24K11.3%0
2026-10-0630K66K44.9%0
2026-10-0510K72K14.1%0
2026-10-0216K89K17.6%0
2026-10-011K10K10.0%0
2026-09-307K32K22.0%0
2026-09-2917K64K26.7%0
2026-09-2872K242K29.6%100
2026-09-25113K260K43.6%1,098
2026-09-2429K42K69.2%0
2026-09-2321K37K56.1%126
2026-09-2227K46K58.9%0

Fails to deliver

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

As of 9 October 2026, the fails-to-deliver balance in ISPC is 3,958 shares, down 6,646 shares over the last settlement date. Over the last 30 readings it ranged from 7 shares (14 August 2026) to 141,245 shares (9 September 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-10-093,958$1.09$4K
2026-09-2810,604$1.26$13K
2026-09-253,137$1.25$4K
2026-09-24339$1.21$410
2026-09-1515,405$1.47$23K
2026-09-1039,715$1.55$62K
2026-09-09141,245$1.59$225K
2026-09-08137,751$1.54$212K
2026-09-04276$1.54$425
2026-09-031,982$1.49$3K
2026-09-02705$1.50$1K
2026-08-316,965$1.54$11K
2026-08-288,105$1.60$13K
2026-08-2714,723$1.64$24K
2026-08-2639$1.60$62
2026-08-257,839$1.57$12K
2026-08-2425,265$1.69$43K
2026-08-2154,086$2.27$123K
2026-08-18690$2.15$1K
2026-08-147$2.30$16
2026-08-12850$2.28$2K
2026-08-11167$2.24$374
2026-08-0735,083$2.20$77K
2026-08-064,446$1.92$9K
2026-08-053,882$2.15$8K
2026-08-03590$1.89$1K
2026-07-312,412$1.83$4K
2026-07-303,303$1.90$6K
2026-07-292,514$1.89$5K
2026-07-287,265$2.01$15K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for ISPC in the last 90 days. The most recent filings are listed below. Latest filing: Bielak Benjamin (Chief Info Officer & Secretary) on 2023-09-14.

DateInsiderTitleTypeSharesPriceValueOwned after
2023-09-14Bielak BenjaminChief Info Officer & SecretaryBuy18K$0.72$13K84K
2023-05-31Curley TracyCEO, CFO and TreasurerBuy4K$1.25$6K50K
2023-01-17Mullan JillDirectorExercise or conversion67K$1.00$67K246K
2023-01-06Ianelli ChristopherDirectorExercise or conversion845$1.00$845425K
2023-01-01Gullans Steven R. Ph.D.DirectorGrant125price not stated in the filingnot stated3K
2023-01-01Ross Andrew L.DirectorGrant125price not stated in the filingnot stated1.3M
2023-01-01Ianelli ChristopherDirectorGrant92price not stated in the filingnot stated425K
2023-01-01Mullan JillDirectorGrant92price not stated in the filingnot stated246K
2023-01-01Brooks John L. IIIDirectorGrant125price not stated in the filingnot stated3K
2023-01-01Basile Joseph J.DirectorGrant63price not stated in the filingnot stated63
2022-10-24Mullan JillDirectorOther transaction18Kprice not stated in the filingnot stated180K
2022-10-24Ianelli ChristopherDirectorOther transaction18Kprice not stated in the filingnot stated425K
2022-06-22Bielak BenjaminChief Information OfficerTax withholding3K$2.36$7K66K
2022-06-22Ianelli ChristopherCEO and PresidentTax withholding4K$2.36$9K443K
2022-06-22Mullan JillCOO and SecretaryTax withholding3K$2.36$7K198K
2022-06-22Curley TracyCFO and TreasurerTax withholding3K$2.36$6K45K
2022-02-23Ianelli ChristopherPresident & CEOExercise or conversion48K$1.00$48K447K
2022-02-22Mullan JillCOO & SecretaryExercise or conversion3K$1.00$3K201K
2022-02-22Mullan JillCOO & SecretaryExercise or conversion19K$1.00$19K198K
2022-02-22Ianelli ChristopherPresident & CEOExercise or conversion3K$1.00$3K399K
2021-11-17Curley TracyChief Financial OfficerBuy2K$5.12$10K10K
2021-11-16Curley TracyChief Financial OfficerBuy8K$5.23$42K8K
2021-11-16UnknownDirector,TenPercentOwnerBuy1K$5.19$5K1.3M
2021-11-15UnknownDirector,TenPercentOwnerBuy500$5.30$3K1.3M
2021-11-10UnknownDirector,TenPercentOwnerBuy500$5.85$3K1.3M
2021-11-08UnknownDirector,TenPercentOwnerBuy1K$5.73$6K1.3M
2021-06-23UnknownDirector,TenPercentOwnerBuy400$6.52$3K1.3M
2021-06-21OBF Investments, LLCTenPercentOwnerConversion119Kprice not stated in the filingnot stated842K
2021-06-21OBF Investments, LLCTenPercentOwnerConversion250Kprice not stated in the filingnot stated250K
2021-06-21OBF Investments, LLCTenPercentOwnerConversion472Kprice not stated in the filingnot stated723K
2021-06-21Ianelli ChristopherCEO, PresidentConversion3Kprice not stated in the filingnot stated343K
2021-06-21Mullan JillCOO, Secretary, TreasurerConversion6Kprice not stated in the filingnot stated50K
2021-06-21Mullan JillCOO, Secretary, TreasurerConversion77Kprice not stated in the filingnot stated126K
2021-06-21Ross Andrew L.Director,TenPercentOwnerConversion361Kprice not stated in the filingnot stated1.2M
2021-06-21Ross Andrew L.Director,TenPercentOwnerConversion86Kprice not stated in the filingnot stated1.3M
2021-06-21Ross Andrew L.Director,TenPercentOwnerConversion14Kprice not stated in the filingnot stated1.3M
2021-06-21Ross Andrew L.Director,TenPercentOwnerConversion130Kprice not stated in the filingnot stated849K
2021-06-21Ross Andrew L.Director,TenPercentOwnerConversion355Kprice not stated in the filingnot stated719K
2021-06-17UnknownDirector,TenPercentOwnerBuy100$6.27$6271.3M

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.

What this page is

iSpecimen 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 iSpecimen (ISPC), SEC CIK 1558569, 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 2026-10-09.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 2024-08-06.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 2023-09-14.JSON and CSV
Company record
EDGAR filing index for CIK 1558569Ticker, 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 ISPC is sold short?
158,754 shares were held short at the 2026-10-15 settlement, 2.0 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 ISPC's daily short volume?
On 2026-11-02, 8,620 of the 25,556 ISPC shares reported to FINRA were sold short, 33.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ISPC have fails to deliver?
The SEC's latest file shows 3,958 ISPC shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are ISPC insiders buying or selling?
No open-market insider trades were reported for ISPC in the last 90 days. The most recent filings are listed below. Latest filing: Bielak Benjamin (Chief Info Officer & Secretary) on 2023-09-14.

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