FENC · Fennec Pharmaceuticals Inc.

$11.40 +0.05 (+0.44%)

Market Cap

$401.52M

35.07M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 105

Total Value: $175,746,610

Total Shares: 16,348,527

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 105 13F filers · Δ vs Mar 31, 2026

Top Holder

19.5%

+1.6 pts

Top 5

63.9%

−6.9 pts

Top 10

78.6%

−8.0 pts

HHI

972

Broadly held−160

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +14

Institutional value: +76.1%

Shares held: +0.8%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid AIGH Capital Management LLC	+504,537	2,486,038
Mid AWM Investment Company, Inc.	+440,161	1,160,296
Mega BlackRock, Inc.	+358,893	1,727,069
Small Rosalind Advisors, Inc.	+279,800	3,188,001
Mid XTX Topco Ltd	+78,611	93,866

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Solas Capital Management, LLC	−592,832	1,889,366
Mega CITADEL ADVISORS LLC	−82,578	71,032
Mega VANGUARD CAPITAL MANAGEMENT LLC	−57,838	839,306
Large Squarepoint Ops LLC	−25,378	31,132
Mega GOLDMAN SACHS GROUP INC	−22,212	33,452

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small Prospect Capital Advisors, LLC	497,800	$5,351,350
Mega JANE STREET GROUP, LLC	233,877	$2,514,177
Large MARSHALL WACE, LLP	138,758	$1,491,648
Large RENAISSANCE TECHNOLOGIES LLC	134,200	$1,442,650
Mid CenterBook Partners LP	118,582	$1,274,756

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid Southpoint Capital Advisors LP	2,744,741	$16,880,157
Mid GENDELL JEFFREY L	83,024	$510,597
Small GLOBEFLEX CAPITAL L P	18,343	$112,809
Large HighTower Advisors, LLC	14,960	$92,004
Large FEDERATED HERMES, INC.	2,401	$14,766

Filter: New 25 Increased 45 Reduced 17 Sold out 11 Unchanged 18

Showing 100 of 105

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Rosalind Advisors, Inc.

$34,271,010

19.50%

3,188,001

AIGH Capital Management LLC

$26,724,908

15.21%

2,486,038

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Worth Venture Partners, LLC	633,743	$6,812,737	25.5%	Other
Held directly	1,852,295	$19,912,171	74.5%	Sole

Solas Capital Management, LLC

$20,310,684

11.56%

1,889,366

BlackRock, Inc.

$18,565,989

10.56%

1,727,069

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	77,287	$830,835	4.5%	Sole
BlackRock Investment Management, LLC	88,301	$949,235	5.1%	Sole
BLACKROCK ADVISORS LLC	60,879	$654,449	3.5%	Sole
BlackRock Fund Advisors	1,127,152	$12,116,884	65.3%	Sole
BlackRock Institutional Trust Company, N.A.	371,857	$3,997,462	21.5%	Sole
Aperio Group, LLC	1,593	$17,124	0.1%	Sole

AWM Investment Company, Inc.

$12,473,182

7.10%

1,160,296

VANGUARD CAPITAL MANAGEMENT LLC

$9,022,539

5.13%

839,306

Prospect Capital Advisors, LLC

$5,351,350

3.04%

497,800

STATE STREET CORP

$4,579,543

2.61%

426,004

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	426,004	$4,579,543	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$4,327,584

2.46%

402,566

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	41,172	$442,599	10.2%	Defined
Held directly	361,394	$3,884,985	89.8%	Defined

JANE STREET GROUP, LLC

$2,514,177

1.43%

233,877

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	155,228	$1,668,701	66.4%	Defined
Jane Street Global Trading, LLC	78,649	$845,476	33.6%	Defined

Potomac Capital Management, Inc.

$2,412,300

1.37%

224,400

MORGAN STANLEY

$2,385,638

1.36%

221,920

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	2,944	$31,648	1.3%	Defined
MORGAN STANLEY & CO. LLC	7,792	$83,764	3.5%	Defined
Morgan Stanley Canada LTD	24,600	$264,450	11.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	2,255	$24,241	1.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	1,800	$19,350	0.8%	Defined
Morgan Stanley Bank, N.A.	459	$4,934	0.2%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	182,070	$1,957,251	82.0%	Defined

VANGUARD PORTFOLIO MANAGEMENT LLC

$2,149,978

1.22%

199,998

NORTHERN TRUST CORP

$1,805,160

1.03%

167,922

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	163,302	$1,755,495	97.2%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	4,620	$49,665	2.8%	Other

MARSHALL WACE, LLP

$1,491,648

0.85%

138,758

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	138,758	$1,491,648	100.0%	Other

RENAISSANCE TECHNOLOGIES LLC

$1,442,650

0.82%

134,200

Nuveen, LLC

$1,413,431

0.80%

131,482

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TIAA CREF INVESTMENT MANAGEMENT LLC joint	96,124	$1,033,333	73.1%	Defined
TEACHERS ADVISORS, LLC joint	35,358	$380,098	26.9%	Defined

Trexquant Investment LP

$1,280,561

0.73%

119,122

CenterBook Partners LP

$1,274,756

0.73%

118,582

Lion Point Capital, LP

$1,208,665

0.69%

112,434

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$1,161,053

0.66%

108,005

Cornerstone Capital, Inc.

$1,128,750

0.64%

105,000

XTX Topco Ltd

$1,009,059

0.57%

93,866

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	93,866	$1,009,059	100.0%	Defined

AQR CAPITAL MANAGEMENT LLC

$998,556

0.57%

92,889

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RF&L WEALTH MANAGEMENT, LLC	4	$43	0.0%	Other
Compound Planning, Inc.	4	$43	0.0%	Other
Arax Advisory Partners	598	$6,428	0.6%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	440	$4,730	0.5%	Other
Stokes Family Office, LLC	136	$1,462	0.1%	Other
Held directly	91,707	$985,850	98.7%	Defined

WELLINGTON MANAGEMENT GROUP LLP

$908,890

0.52%

84,548

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	26,924	$289,433	31.8%	Defined
Wellington Trust Company, NA joint	53,870	$579,102	63.7%	Defined
Wellington Management Australia Pty Ltd	3,754	$40,355	4.4%	Defined

Quadrature Capital Ltd

$814,054

0.46%

75,726

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	75,726	$814,054	100.0%	Other

CITADEL ADVISORS LLC

$763,593

0.43%

71,032

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	57,049	$613,276	80.3%	Defined
Held directly	13,983	$150,317	19.7%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$757,918

0.43%

70,504

1492 Capital Management LLC

$700,351

0.40%

65,149

Bank of New York Mellon Corp

$656,093

0.37%

61,032

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	18,736	$201,412	30.7%	Defined
The Bank of New York Mellon	42,295	$454,671	69.3%	Defined
Held directly	1	$10	0.0%	Defined

TWO SIGMA INVESTMENTS, LP

$648,569

0.37%

60,332

Qube Research & Technologies Ltd

$626,639

0.36%

58,292

THOMPSON SIEGEL & WALMSLEY LLC

$615,179

0.35%

57,226

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Perpetual Ltd	57,226	$615,179	100.0%	Defined

Point72 Asset Management, L.P.

$606,375

0.35%

56,407

Eleva Capital SAS

$572,265

0.33%

53,234

Hartford Financial Management Inc.

$544,444

0.31%

50,646

Round Rock Advisors LLC

$523,342

0.30%

48,683

VANGUARD FIDUCIARY TRUST CO

$488,050

0.28%

45,400

STATE OF WISCONSIN INVESTMENT BOARD

$415,003

0.24%

38,605

BNP PARIBAS ARBITRAGE, SA

$394,815

0.22%

36,727

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$378,400

0.22%

35,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	35,200	$378,400	100.0%	Other

RHUMBLINE ADVISERS

$375,916

0.21%

34,969

GOLDMAN SACHS GROUP INC

$359,609

0.20%

33,452

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	33,452	$359,609	100.0%	Defined

Squarepoint Ops LLC

$334,669

0.19%

31,132

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	31,132	$334,669	100.0%	Defined

PRELUDE CAPITAL MANAGEMENT, LLC

$318,189

0.18%

29,599

DEUTSCHE BANK AG\

$310,653

0.18%

28,898

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	560	$6,020	1.9%	Defined
DWS Investments UK Ltd	28,338	$304,633	98.1%	Defined

WELLS FARGO & COMPANY/MN

$285,562

0.16%

26,564

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	26,489	$284,756	99.7%	Defined
WELLS FARGO CLEARING SERVICES, LLC	75	$806	0.3%	Defined

MILLENNIUM MANAGEMENT LLC

$282,907

0.16%

26,317

JONES FINANCIAL COMPANIES LLLP

$280,059

0.16%

26,052

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	26,052	$280,059	100.0%	Sole

LOS ANGELES CAPITAL MANAGEMENT LLC

$272,093

0.15%

25,311

PRICE T ROWE ASSOCIATES INC /MD/

$247,561

0.14%

23,029

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	23,029	$247,561	100.0%	Defined

Brevan Howard Capital Management LP

$230,845

0.13%

21,474

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brevan Howard US Investment Management, LP	21,474	$230,845	100.0%	Defined

BANK OF AMERICA CORP /DE/

$214,376

0.12%

19,942

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	19,942	$214,376	100.0%	Defined

Engineers Gate Manager LP

$192,317

0.11%

17,890

MetLife Investment Management, LLC

$181,610

0.10%

16,894

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	16,894	$181,610	100.0%	Defined

ALLIANCEBERNSTEIN L.P.

$178,127

0.10%

16,570

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	16,570	$178,127	100.0%	Defined

LAZARD ASSET MANAGEMENT LLC

$177,375

0.10%

16,500

Invesco Ltd.

$169,246

0.10%

15,744

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	4,275	$45,955	27.2%	Defined
Invesco Trust Co joint	11,469	$123,291	72.8%	Defined

CITIGROUP INC

$146,275

0.08%

13,607

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	13,607	$146,275	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$143,749

0.08%

13,372

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	13,372	$143,749	100.0%	Defined

Russell Investments Group, Ltd.

$142,502

0.08%

13,256

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	13,256	$142,502	100.0%	Defined

Kemnay Advisory Services Inc.

$135,299

0.08%

12,586

JPMORGAN CHASE & CO

$130,536

0.07%

12,143

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	12,071	$129,762	99.4%	Defined
J.P. Morgan Investment Management Inc.	72	$774	0.6%	Defined

MASTER'S WEALTH MANAGEMENT INC.

$124,237

0.07%

11,557

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
1492 Investment Management	11,557	$124,237	100.0%	Defined

Police & Firemen's Retirement System of New Jersey

$113,498

0.06%

10,558

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	10,558	$113,498	100.0%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$104,844

0.06%

9,753

NANO CAP NEW MILLENNIUM GROWTH FUND L P

$80,625

0.05%

7,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AZG TANGIBLE ASSETS FUND LLC	7,500	$80,625	100.0%	Sole

State of Alaska, Department of Revenue

$70,627

0.04%

6,570

STRS OHIO

$67,725

0.04%

6,300

FMR LLC

$62,274

0.04%

5,793

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	5,531	$59,458	95.5%	Defined
STRATEGIC ADVISERS LLC	262	$2,816	4.5%	Defined

UBS Group AG

$50,621

0.03%

4,709

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,759	$18,909	37.4%	Defined
UBS AG	2,948	$31,691	62.6%	Defined
UBS Switzerland AG	2	$21	0.0%	Defined

BARCLAYS PLC

$46,804

0.03%

4,354

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	3,785	$40,688	86.9%	Defined
BARCLAYS CAPITAL INC.	569	$6,116	13.1%	Defined

Tower Research Capital LLC (TRC)

$37,356

0.02%

3,475

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	3,475	$37,356	100.0%	Defined

Legal & General Group Plc

$29,175

0.02%

2,714

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	2,714	$29,175	100.0%	Defined

ROYAL BANK OF CANADA

$28,852

0.02%

2,684

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	875	$9,406	32.6%	Defined
RBC Capital Markets, LLC	1,000	$10,750	37.3%	Defined
RBC Dominion Securities Inc.	809	$8,696	30.1%	Defined

Ameritas Investment Partners, Inc.

$28,326

0.02%

2,635

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
EATON VANCE MANAGEMENT	2,635	$28,326	100.0%	Other

IFG Advisory, LLC

$21,500

0.01%

2,000

Arax Advisory Partners

$7,019

0.00%

653

PNC FINANCIAL SERVICES GROUP, INC.

$6,933

0.00%

645

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	645	$6,933	100.0%	Defined

Pinnacle Wealth Planning Services, Inc.

$5,450

0.00%

507

Integrated Wealth Concepts LLC

$4,590

0.00%

427

MassMutual Private Wealth & Trust, FSB

$3,837

0.00%

357

GAMMA Investing LLC

$3,751

0.00%

349

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$3,257

0.00%

303

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	303	$3,257	100.0%	Defined

Allworth Financial LP

$2,945

0.00%

274

Private Wealth Management Group, LLC

$2,655

0.00%

247

EverSource Wealth Advisors, LLC

$2,019

0.00%

188

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMSS Wesson Wealth Solutions, LLC	39	$418	20.7%	Sole
Held directly	149	$1,601	79.3%	Sole

NATIONAL BANK OF CANADA /FI/

$1,515

0.00%

141

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
National Bank Financial Inc.	141	$1,515	100.0%	Defined

Smartleaf Asset Management LLC

$1,182

0.00%

110

Sterling Capital Management LLC

$1,096

0.00%

102

Farther Finance Advisors, LLC

$1,021

0.00%

IFP Advisors, Inc

$989

0.00%

Cornerstone Planning Group LLC

$946

0.00%

Essential Partners LLC

$860

0.00%

OSAIC HOLDINGS, INC.

$806

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	75	$806	100.0%	Defined

Hughes Financial Services, LLC

$763

0.00%

ROTHSCHILD INVESTMENT LLC

$655

0.00%

NISA INVESTMENT ADVISORS, LLC

$494

0.00%

TD Waterhouse Canada Inc.

$311

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	29	$311	100.0%	Defined

SJS Investment Consulting Inc.

$139

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Southpoint Capital Advisors LLC joint	2,744,741	$16,880,157	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tontine Asset Management, LLC	39,303	$241,713	47.3%	Defined
Tontine Associates, LLC	43,721	$268,884	52.7%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FEDERATED MDTA LLC	2,401	$14,766	100.0%	Defined

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