XOOMAR

FENNEC PHARMACEUTICALS INC. (FENC)

Every FINRA and SEC series the site collects for FENNEC PHARMACEUTICALS INC.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances).

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532K

Short interest

settlement 2026-08-14

2.2

Days to cover

-13.6% vs prior

39.7%

Short share of volume

2026-09-11

557

Fails to deliver

settlement 2026-08-12

-$1.2M

Insider flow, 90 days

0 buys, 4 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 14 August 2026, short interest in FENC is 532,095 shares, down 77,094 shares over the last month. Over the last 48 readings it ranged from 450,578 shares (15 June 2026) to 2,108,899 shares (13 December 2024). The latest reading sits at the bottom of that range. At the reported average volume of 245K shares a day that is 2.2 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-14532,095-13.6%245,4782.17
2026-07-31615,869+1.1%115,8605.32
2026-07-15609,189+24.6%182,9243.33
2026-06-30488,731+8.5%366,0031.34
2026-06-15450,578-9.5%224,7112.01
2026-05-29498,119-20.1%355,9551.40
2026-05-15623,377-41.2%386,2411.61
2026-04-301,060,249+13.9%118,1798.97
2026-04-15930,606+1.9%177,0945.25
2026-03-31913,271+13.2%308,6002.96
2026-03-13806,566-2.1%126,1016.40
2026-02-27824,295+1.6%115,6447.13
2026-02-13811,612+5.5%105,7007.68
2026-01-30769,534+3.8%94,4598.15
2026-01-15741,610-4.7%134,2935.52
2025-12-31777,869-9.5%212,3043.66
2025-12-15859,138-2.6%149,7515.74
2025-11-28882,225-17.8%219,1454.03
2025-11-141,073,787+9.5%147,4887.28
2025-10-31980,887-25.0%71,88713.64
2025-10-151,308,525+0.3%73,95917.69
2025-09-301,303,927-1.8%112,11211.63
2025-09-151,327,328+6.5%47,91727.70
2025-08-291,246,841-2.6%63,33619.69

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of FENC volume is 39.7%, up 16.0 points over the last five sessions. Over the last 52 readings it ranged from 15.6% (21 August 2026) to 66.0% (27 July 2026). The latest reading is 8.6 points above the 30-session average of 31.1%, on 96K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-1138K96K39.7%0
2026-09-1029K67K43.6%0
2026-09-0956K150K37.4%5,423
2026-09-0852K140K37.3%8,334
2026-09-0427K104K26.1%391
2026-09-0334K142K23.7%0
2026-09-0223K136K16.9%0
2026-09-0132K193K16.4%0
2026-08-3162K273K22.6%0
2026-08-2849K251K19.6%0
2026-08-2723K134K17.1%0
2026-08-2644K124K35.5%703
2026-08-2522K94K23.0%0
2026-08-2434K114K29.9%10,478
2026-08-2114K89K15.6%1,200
2026-08-2021K110K19.4%0
2026-08-1913K68K18.9%10
2026-08-1814K43K31.8%1,700
2026-08-1729K84K34.6%0
2026-08-1416K45K34.7%0
2026-08-1323K90K25.4%0
2026-08-1240K152K26.3%0
2026-08-1193K361K25.8%5,900
2026-08-1034K101K33.3%0
2026-08-0750K107K46.2%0
2026-08-0619K46K41.0%0
2026-08-0535K59K60.2%0
2026-08-0423K53K43.2%0
2026-08-039K30K29.7%0
2026-07-3115K25K58.7%0

Fails to deliver

SEC, by settlement date. JSON

As of 12 August 2026, the fails-to-deliver balance in FENC is 557 shares, down 2,227 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (24 February 2026) to 70,395 shares (22 September 2025). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-12557$12.78$7K
2026-08-072,784$10.84$30K
2026-07-28671$10.21$7K
2026-07-208,526$10.50$90K
2026-07-146$10.75$65
2026-06-294,122$11.02$45K
2026-06-244,352$10.30$45K
2026-06-1116$8.70$139
2026-06-082$8.70$17
2026-06-036,913$9.98$69K
2026-04-10517$6.40$3K
2026-04-08304$6.32$2K
2026-04-071,118$6.42$7K
2026-03-31100$5.77$577
2026-03-235$7.32$37
2026-02-2555,580$8.91$495K
2026-02-241$8.99$9
2026-02-1932,085$8.97$288K
2026-02-18246$8.68$2K
2026-01-2032$7.59$243
2026-01-1632$7.46$239
2026-01-05701$7.68$5K
2025-12-19740$7.58$6K
2025-12-177,999$7.62$61K
2025-12-1213$7.49$97
2025-12-041,437$7.57$11K
2025-11-251,250$7.72$10K
2025-11-061,453$8.25$12K
2025-10-274,198$8.99$38K
2025-10-244,256$8.96$38K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at FENC reported 4 open-market sells worth $1.2M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Raykov Rosty on 2026-09-01.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-01Raykov Rostyn/aSell10K$12.11$121K124K
2026-08-31Raykov Rostyn/aGrant3K$0.00$0134K
2026-08-31Sayad Pierre SargisChief Medical OfficerSell12K$12.18$146K10K
2026-08-31Sayad Pierre SargisChief Medical OfficerGrant168$0.00$022K
2026-08-31Hackman Jeffrey S.Chief Executive OfficerGrant1K$0.00$066K
2026-08-31Evans Terry LChief Commercial OfficerGrant168$0.00$022K
2026-08-31Cioffi Christiana MarieChief Strategy OfficerGrant156$0.00$025K
2026-08-31Andrade RobertCHIEF FINANCIAL OFFICERGrant2K$0.00$0241K
2026-08-28Andrade RobertCHIEF FINANCIAL OFFICEROption exercise22K$5.10$112K240K
2026-08-27Andrade RobertCHIEF FINANCIAL OFFICERSell75K$11.78$884K218K
2026-08-03Raykov Rostyn/aSell10K$9.58$96K132K
2026-07-31Sayad Pierre SargisChief Medical OfficerGrant168$0.00$021K
2026-07-31Hackman Jeffrey S.Chief Executive OfficerGrant1K$0.00$065K
2026-07-31Raykov Rostyn/aGrant3K$0.00$0142K
2026-07-31Evans Terry LChief Commercial OfficerGrant168$0.00$021K
2026-07-31Cioffi Christiana MarieChief Strategy OfficerGrant156$0.00$024K
2026-07-31Andrade RobertCHIEF FINANCIAL OFFICERGrant2K$0.00$0293K
2026-06-30Andrade RobertCHIEF FINANCIAL OFFICERGrant2K$0.00$0291K
2026-06-01Raykov Rostyn/aSell10K$9.62$94K130K
2026-06-01Raykov Rostyn/aOption exercise16K$2.45$38K140K
2026-05-31Sayad Pierre SargisChief Medical OfficerGrant168$0.00$021K
2026-05-31Hackman Jeffrey S.Chief Executive OfficerGrant1K$0.00$063K
2026-05-31Evans Terry LChief Commercial OfficerGrant168$0.00$021K
2026-05-31Cioffi Christiana MarieChief Strategy OfficerGrant156$0.00$024K
2026-05-31Andrade RobertCHIEF FINANCIAL OFFICERGrant2K$0.00$0289K
2026-05-31Raykov Rostyn/aGrant3K$0.00$0124K
2026-05-11RALLIS CHRIS An/aSell8K$7.04$59K63K
2026-05-11RALLIS CHRIS An/aOption exercise14K$2.44$35K71K
2026-05-01Raykov Rostyn/aSell11K$6.47$70K121K
2026-05-01Raykov Rostyn/aOption exercise16K$2.45$38K132K
2026-04-30Sayad Pierre SargisChief Medical OfficerOption exercise168$0.00$021K
2026-04-30Hackman Jeffrey S.Chief Executive OfficerOption exercise1K$0.00$062K
2026-04-30Raykov Rostyn/aOption exercise3K$0.00$0117K
2026-04-30Evans Terry LChief Commercial OfficerOption exercise168$0.00$021K
2026-04-30Cioffi Christiana MarieChief Strategy OfficerOption exercise155$0.00$024K
2026-04-30Andrade RobertCHIEF FINANCIAL OFFICEROption exercise2K$0.00$0288K
2026-04-01Raykov Rostyn/aSell11K$6.31$69K114K
2026-04-01Raykov Rostyn/aOption exercise16K$2.45$38K125K
2026-03-31Sayad Pierre SargisChief Medical OfficerOption exercise171$0.00$019K
2026-03-31Sayad Pierre SargisChief Medical OfficerOption exercise18K$0.00$018K
2026-03-31Hackman Jeffrey S.Chief Executive OfficerOption exercise1K$0.00$047K
2026-03-31Hackman Jeffrey S.Chief Executive OfficerOption exercise17K$0.00$045K
2026-03-31Raykov Rostyn/aGrant5K$0.00$0109K
2026-03-31Evans Terry LChief Commercial OfficerOption exercise171$0.00$019K
2026-03-31Evans Terry LChief Commercial OfficerOption exercise18K$0.00$018K
2026-03-31Cioffi Christiana MarieChief Strategy OfficerOption exercise158$0.00$022K
2026-03-31Cioffi Christiana MarieChief Strategy OfficerOption exercise17K$0.00$022K
2026-03-31Andrade RobertCHIEF FINANCIAL OFFICEROption exercise2K$0.00$0274K
2026-03-31Andrade RobertCHIEF FINANCIAL OFFICEROption exercise15K$0.00$0271K
2026-03-28Sayad Pierre SargisChief Medical OfficerOption exercise2K$0.00$021K

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 the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

4 Form 144 notices on file for FENC worth $1.2M at the prices reported; 4 in the last 90 days worth $1.2M. Latest: ROSTISLAV RAYKOV filed on 2026-09-01 to sell 10,000 shares ($121K) from 2026-09-01.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-01ROSTISLAV RAYKOVFormer Director10K$121K0.029%2026-09-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-31PIERRE S SAYADOfficer12K$146K0.034%2026-08-31Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-27ROBERT ANDRADEOfficer75K$884K0.214%2026-08-27Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-03ROSTISLAV RAYKOVFormer Director10K$96K0.029%2026-08-03Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

12 holders above 5% have filed on FENC, all on Schedule 13G (passive). The largest reported stake is Rosalind Advisors, Inc. at 9.6% of the class (3,321,333 shares), filed 2026-08-13 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 4Solas Capital Management, LLCinvestment adviser, parent holding company, other entity1.9M5.4%2026-06-30
2026-08-1413G/Ano. 4FREDERICK TUCKER GOLDENparent holding company, individual1.9M5.4%2026-06-30
2026-08-1413G/Ano. 3Southpoint Capital Advisors LLCother entity00.0%2026-06-30
2026-08-1413G/Ano. 3Southpoint Capital Advisors LPpartnership00.0%2026-06-30
2026-08-1413G/Ano. 3Southpoint GP, LPpartnership00.0%2026-06-30
2026-08-1413G/Ano. 3Southpoint GP, LLCother entity00.0%2026-06-30
2026-08-1413G/Ano. 3John S. Clark IIindividual00.0%2026-06-30
2026-08-1413G/Ano. 3Southpoint Master Fund, LPpartnership00.0%2026-06-30
2026-08-1313G/Ano. 3Rosalind Advisors, Inc.corporation3.3M9.6%2026-06-30
2026-08-1313G/Ano. 3SALAMON STEVEN A Jindividual3.3M9.4%2026-06-30
2026-08-1313G/Ano. 3Aharon Gilindividual3.2M9.4%2026-06-30
2026-08-1313G/Ano. 3Rosalind Master Fund L.P.partnership3.2M9.2%2026-06-30

13F holders

Tracked managers holding FENC at their latest 13F. JSON

6 of the 30 tracked managers held FENC at their latest 13F, $4.7M in total at quarter-end prices. Renaissance Technologies is the largest at $1.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30134K$1.4M0.00%+114K
AQR Capital Management2026-06-3093K$999K0.00%+69K
Citadel Advisors2026-06-3071K$764K0.00%-83K
Two Sigma Investments2026-06-3060K$649K0.00%+47K
Point72 Asset Management2026-06-3056K$606K0.00%+35K
Millennium Management2026-06-3026K$283K0.00%+10K

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.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-06-30) FENNEC PHARMACEUTICALS INC. reported revenue of $17.9M, up 85.2% from the same quarter a year earlier, and net income of $2.0M (0.05 diluted EPS). In FY 2025 it generated -$12.5M of operating cash flow.

Cash
$41.2M
Equity
$42.4M
Total assets
$75.8M
Shares outstanding
35,067,159

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$17.9M$2.0M11.0%0.05
Q1 20262026-03-31$15.1M$201K1.3%0.01
Q4 2025derived2025-12-31$13.8Mn/an/an/a
Q3 20252025-09-30$12.5M-$638K-5.1%-0.02
Q2 20252025-06-30$9.7M-$3.2M-32.7%-0.11
Q1 20252025-03-31$8.8M-$1.2M-13.3%-0.04
Q4 2024derived2024-12-31$7.9Mn/an/an/a
Q3 20242024-09-30$7.0M-$5.7M-82.2%-0.21

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$44.6Mn/a-$12.5Mn/an/an/a
FY 20242024-12-31$47.5Mn/a$27.0Mn/an/an/a
FY 20232023-12-31$21.3Mn/a-$17.1Mn/an/an/a
FY 20222022-12-31$1.5M-$23.7M-$18.1Mn/an/an/a
FY 20212021-12-31n/a-$17.3M-$14.2Mn/an/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-11 from the cover page.

What this page is

FENNEC PHARMACEUTICALS INC. 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 pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, 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 summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows FENNEC PHARMACEUTICALS INC. (FENC), SEC CIK 1211583, listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances). The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-12.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-01.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-01.JSON and CSV
Company record
EDGAR filing index for CIK 1211583Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 13 Sep 09:50 UTC.

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 crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short 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.

Datasets

Frequently Asked Questions

How much of FENC is sold short?
532,095 shares were held short at the 2026-08-14 settlement, 2.2 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 FENC's daily short volume?
On 2026-09-11, 37,993 of the 95,713 FENC shares reported to FINRA were sold short, 39.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does FENC have fails to deliver?
The SEC's latest file shows 557 FENC shares failed to deliver at settlement 2026-08-12. Fails are reported per settlement date and published twice a month with a lag.
Are FENC insiders buying or selling?
Insiders at FENC reported 4 open-market sells worth $1.2M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Raykov Rosty on 2026-09-01.
Have FENC insiders filed to sell?
4 Form 144 notices on file for FENC worth $1.2M at the prices reported; 4 in the last 90 days worth $1.2M. Latest: ROSTISLAV RAYKOV filed on 2026-09-01 to sell 10,000 shares ($121K) from 2026-09-01.
Who owns more than 5% of FENC?
12 holders above 5% have filed on FENC, all on Schedule 13G (passive). The largest reported stake is Rosalind Advisors, Inc. at 9.6% of the class (3,321,333 shares), filed 2026-08-13 for an event on 2026-06-30.
What did FENC report last quarter?
In Q2 2026 (quarter ended 2026-06-30) FENNEC PHARMACEUTICALS INC. reported revenue of $17.9M, up 85.2% from the same quarter a year earlier, and net income of $2.0M (0.05 diluted EPS). In FY 2025 it generated -$12.5M of operating cash flow.
Which funds hold FENC?
6 of the 30 tracked managers held FENC at their latest 13F, $4.7M in total at quarter-end prices. Renaissance Technologies is the largest at $1.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

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