# EDGAR Filing Document

**Accession Number:** 0001000097
**File Stem:** 0001000097-26-000005
**Filing Date:** 2026-5
**Character Count:** 11100
**Document Hash:** 3be8f604c1525cc66790cc187840d6c5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001000097-26-000005.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001000097-26-000005

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**EFFECTIVENESS DATE**: 20260515

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** KINGDON CAPITAL MANAGEMENT, L.L.C.
- **CENTRAL INDEX KEY:** 0001000097

**ORGANIZATION NAME:**
- **EIN:** 134015739
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-04575
- **FILM NUMBER:** 26984780

**BUSINESS ADDRESS:**
- **STREET 1:** 152 WEST 57TH STREET
- **STREET 2:** 50TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212-333-0100

**MAIL ADDRESS:**
- **STREET 1:** 152 WEST 57TH STREET
- **STREET 2:** 50TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KINGDON CAPITAL MANAGEMENT LLC
- **DATE OF NAME CHANGE:** 19980914

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KINGDON CAPITAL MANAGEMENT CORP
- **DATE OF NAME CHANGE:** 19960408

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 03-31-2026

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** KINGDON CAPITAL MANAGEMENT L.L.C.<br>**Address:** 152 WEST 57TH STREET<br>50TH FLOOR<br>NEW YORK, NY 10019

**Form 13F File Number:** 028-04575

**CRD Number (if applicable):** 000157509

**SEC File Number (if applicable):** 801-73482

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** William Walsh<br>**Title:** Chief Financial Officer<br>**Phone:** 2123330100

**Signature, Place, and Date of Signing:**

William Walsh  New York, NY  05-15-2026<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 67

**Form 13F Information Table Value Total:** $911027890

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| AAR CORP | COM | 000361105 |  | 10946000 | 100000 | SH |  | DFND | 1234 | 100000 | 0 | 0 |
| ACADIA HEALTHCARE COMPANY IN | COM | 00404A109 |  | 9266931 | 396192 | SH |  | DFND | 1234 | 396192 | 0 | 0 |
| AERCAP HOLDINGS NV | SHS | N00985106 |  | 12346200 | 90000 | SH |  | DFND | 1234 | 90000 | 0 | 0 |
| ALDEYRA THERAPEUTICS INC | COM | 01438T106 |  | 3637412 | 2152315 | SH |  | DFND | 1234 | 2152315 | 0 | 0 |
| ALIBABA GROUP HLDG LTD | SPONSORED ADS | 01609W102 |  | 11291400 | 90000 | SH |  | DFND | 1234 | 90000 | 0 | 0 |
| ALIGHT INC | COM CL A | 01626W101 |  | 524430 | 900000 | SH | Call | DFND | 1234 | 900000 | 0 | 0 |
| AMERICAN HEALTHCARE REIT INC | COM SHS | 398182303 |  | 14148000 | 300000 | SH |  | DFND | 1234 | 300000 | 0 | 0 |
| API GROUP CORP | COM STK | 00187Y100 |  | 18234000 | 450000 | SH |  | DFND | 1234 | 450000 | 0 | 0 |
| AXON ENTERPRISE INC | COM | 05464C101 |  | 6158005 | 14500 | SH |  | DFND | 1234 | 14500 | 0 | 0 |
| BROOKDALE SR LIVING INC | COM | 112463104 |  | 11628000 | 850000 | SH |  | DFND | 1234 | 850000 | 0 | 0 |
| COGNEX CORP | COM | 192422103 |  | 9063150 | 185000 | SH |  | DFND | 1234 | 185000 | 0 | 0 |
| COLLECTIVE MINING LTD | COM | 19425C100 |  | 7484250 | 425000 | SH |  | DFND | 1234 | 425000 | 0 | 0 |
| COMPASS INC | CL A | 20464U100 |  | 2924000 | 400000 | SH | Call | DFND | 1234 | 400000 | 0 | 0 |
| CRANE COMPANY | COMMON STOCK | 224408104 |  | 10260000 | 60000 | SH |  | DFND | 1234 | 60000 | 0 | 0 |
| CREDO TECHNOLOGY GROUP HOLDI | ORDINARY SHARES | G25457105 |  | 6101550 | 65000 | SH |  | DFND | 1234 | 65000 | 0 | 0 |
| DARLING INGREDIENTS INC | COM | 237266101 |  | 11751500 | 190000 | SH |  | DFND | 1234 | 190000 | 0 | 0 |
| ELEDON PHARMACEUTICALS INC | COM | 28617K101 |  | 3200967 | 1039275 | SH |  | DFND | 1234 | 1039275 | 0 | 0 |
| ENVVENO MEDICAL CORPORATION | COM NEW | 29415J205 |  | 366362 | 36166 | SH |  | DFND | 1234 | 36166 | 0 | 0 |
| ETORO GROUP LTD | SHS CL A | G32089107 |  | 4504500 | 150000 | SH | Call | DFND | 1234 | 150000 | 0 | 0 |
| EVERUS CONSTR GROUP | COM | 300426103 |  | 14757500 | 125000 | SH |  | DFND | 1234 | 125000 | 0 | 0 |
| FLEXTRONICS INTL LTD | ORD | Y2573F102 |  | 11455500 | 175000 | SH |  | DFND | 1234 | 175000 | 0 | 0 |
| FORGENT POWER SOLUTIONS INC | COM SHS CL A | 34631F102 |  | 5854000 | 200000 | SH |  | DFND | 1234 | 200000 | 0 | 0 |
| GARRETT MOTION INC | COM | 366505105 |  | 12719000 | 700000 | SH |  | DFND | 1234 | 700000 | 0 | 0 |
| GE AEROSPACE | COM NEW | 369604301 |  | 8513100 | 30000 | SH | Call | DFND | 1234 | 30000 | 0 | 0 |
| GENESCO INC | COM | 371532102 |  | 7073560 | 244000 | SH |  | DFND | 1234 | 244000 | 0 | 0 |
| GXO LOGISTICS INCORPORATED | COMMON STOCK | 36262G101 |  | 6481250 | 125000 | SH |  | DFND | 1234 | 125000 | 0 | 0 |
| HEICO CORP NEW | COM | 422806109 |  | 10968000 | 40000 | SH |  | DFND | 1234 | 40000 | 0 | 0 |
| HOWMET AEROSPACE INC | COM | 443201108 |  | 16132200 | 70000 | SH |  | DFND | 1234 | 70000 | 0 | 0 |
| ICON PLC | SHS | G4705A100 |  | 11652498 | 105300 | SH |  | DFND | 1234 | 105300 | 0 | 0 |
| ISHARES INC | MSCI STH KOR ETF | 464286772 |  | 9225750 | 75000 | SH |  | DFND | 1234 | 75000 | 0 | 0 |
| ISHARES INC | MSCI STH KOR ETF | 464286772 |  | 14761200 | 120000 | SH | Put | DFND | 1234 | 120000 | 0 | 0 |
| ISHARES TR | GL CLEAN ENE ETF | 464288224 |  | 12803000 | 700000 | SH |  | DFND | 1234 | 700000 | 0 | 0 |
| ISHARES TR | MSCI USA MMENTM | 46432F396 |  | 15599350 | 65000 | SH | Put | DFND | 1234 | 65000 | 0 | 0 |
| ISHARES TR | RUSSELL 2000 ETF | 464287655 |  | 24800000 | 100000 | SH | Put | DFND | 1234 | 100000 | 0 | 0 |
| ITRON INC | COM | 465741106 |  | 2240750 | 25000 | SH |  | DFND | 1234 | 25000 | 0 | 0 |
| JASPER THERAPEUTICS INC | COM NEW | 471871202 |  | 1184715 | 1352106 | SH |  | DFND | 1234 | 1352106 | 0 | 0 |
| KEYSIGHT TECHNOLOGIES INC | COM | 49338L103 |  | 22589600 | 80000 | SH |  | DFND | 1234 | 80000 | 0 | 0 |
| LOWES COS INC | COM | 548661107 |  | 5020950 | 21250 | SH |  | DFND | 1234 | 21250 | 0 | 0 |
| MAPLEBEAR INC | COM | 565394103 |  | 17606200 | 470000 | SH |  | DFND | 1234 | 470000 | 0 | 0 |
| NEXGEN ENERGY LTD | COM | 65340P106 |  | 29000000 | 2500000 | SH |  | DFND | 1234 | 2500000 | 0 | 0 |
| NIOCORP DEVS LTD | COM NEW | 654484609 |  | 2007000 | 450000 | SH |  | DFND | 1234 | 450000 | 0 | 0 |
| NU HLDGS LTD | ORD SHS CL A | G6683N103 |  | 7185000 | 500000 | SH | Call | DFND | 1234 | 500000 | 0 | 0 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 34880000 | 200000 | SH |  | DFND | 1234 | 200000 | 0 | 0 |
| OLEMA PHARMACEUTICALS INC | COM | 68062P106 |  | 12748050 | 855000 | SH |  | DFND | 1234 | 855000 | 0 | 0 |
| RALLIANT CORP | COM | 750940108 |  | 10397500 | 250000 | SH |  | DFND | 1234 | 250000 | 0 | 0 |
| ROBINHOOD MKTS INC | COM CL A | 770700102 |  | 10395000 | 150000 | SH | Call | DFND | 1234 | 150000 | 0 | 0 |
| SCYNEXIS INC | COM NEW | 811292200 |  | 1817746 | 1982491 | SH |  | DFND | 1234 | 1982491 | 0 | 0 |
| SELECT SECTOR SPDR TR | STATE STREET FIN | 81369Y605 |  | 9874000 | 200000 | SH | Put | DFND | 1234 | 200000 | 0 | 0 |
| SERVICENOW INC | COM | 81762P102 |  | 3659250 | 35000 | SH | Call | DFND | 1234 | 35000 | 0 | 0 |
| SOLENO THERAPEUTICS INC | COM | 834203309 |  | 19251000 | 575000 | SH |  | DFND | 1234 | 575000 | 0 | 0 |
| SPORTRADAR GROUP AG | CLASS A ORD SHS | H8088L103 |  | 11282760 | 674000 | SH |  | DFND | 1234 | 674000 | 0 | 0 |
| STATE STR SPDR S 500 ETF T | TR UNIT | 78462F103 |  | 185346900 | 285000 | SH | Put | DFND | 1234 | 285000 | 0 | 0 |
| SYNDAX PHARMACEUTICALS INC | COM | 87164F105 |  | 58400000 | 2500000 | SH |  | DFND | 1234 | 2500000 | 0 | 0 |
| TAIWAN SEMICONDUCTOR MANUFAC | SPONSORED ADS | 874039100 |  | 15207750 | 45000 | SH |  | DFND | 1234 | 45000 | 0 | 0 |
| TELEDYNE TECHNOLOGIES INC | COM | 879360105 |  | 10587675 | 17500 | SH |  | DFND | 1234 | 17500 | 0 | 0 |
| TETRA TECH INC NEW | COM | 88162G103 |  | 3012000 | 100000 | SH |  | DFND | 1234 | 100000 | 0 | 0 |
| THE REALREAL INC | COM | 88339P101 |  | 3632000 | 400000 | SH |  | DFND | 1234 | 400000 | 0 | 0 |
| TRAVERE THERAPEUTICS INC | COM | 89422G107 |  | 5942000 | 200000 | SH | Put | DFND | 1234 | 200000 | 0 | 0 |
| VANECK ETF TRUST | SEMICONDUCTR ETF | 92189F676 |  | 13419000 | 35000 | SH | Put | DFND | 1234 | 35000 | 0 | 0 |
| VICOR CORP | COM | 925815102 |  | 3220000 | 20000 | SH |  | DFND | 1234 | 20000 | 0 | 0 |
| VICOR CORP | COM | 925815102 |  | 6440000 | 40000 | SH | Call | DFND | 1234 | 40000 | 0 | 0 |
| VSE CORP | COM | 918284100 |  | 11064000 | 60000 | SH |  | DFND | 1234 | 60000 | 0 | 0 |
| WARBY PARKER INC | CL A COM | 93403J106 |  | 22200279 | 1053644 | SH |  | DFND | 1234 | 1053644 | 0 | 0 |
| WAYSTAR HLDG CORP | COM | 946784105 |  | 10560180 | 438000 | SH |  | DFND | 1234 | 438000 | 0 | 0 |
| WELLTOWER INC | COM | 95040Q104 |  | 9885500 | 50000 | SH |  | DFND | 1234 | 50000 | 0 | 0 |
| WOLVERINE WORLD WIDE INC | COM | 978097103 |  | 7115520 | 436000 | SH |  | DFND | 1234 | 436000 | 0 | 0 |
| ZEVRA THERAPEUTICS INC | COM NEW | 488445206 |  | 7223000 | 775000 | SH |  | DFND | 1234 | 775000 | 0 | 0 |

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