CAXTON CORP

CIK 1388551 · View on SEC EDGAR ↗

Portfolio value
$4.0M
#8,319 of 8,643 by 13F value · top 96.3%
Positions
7
As of
March 31, 2026 Data as of Q1 2026

Portfolio value QoQ: -6.0% 13F does not disclose cash

Top 10 holdings weight
100.00%
Top 25 holdings weight
100.00%
Positions above 1%
10
Effective number of positions
6.6

Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)

Turnover Q2 2026: 38.83% Est. buys $1,141,122 · sells $3,337,177

Median holding: 2.0 quarters Tracked Q4 2024–Q2 2026 · 41.7% still held

New positions
4
Increased
2
Decreased
1
Closed
1
On this page

Sector breakdown

Healthcare
19.6%
Communication Services
13.3%
Financial Services
10.2%
Other/Unmapped
57.0%

Full portfolio 10 positions

Type Streak 8Q trend
Unknown issuer (CUSIP: 84615Q103) $445,346 24.03% 2,606 Up ×1
BRKB $377,128 20.35% 754 $28,787 Up ×5
GOOGL Alphabet Inc. - Class A Common Stock $246,906 13.32% 691 Up ×1
VOO $233,094 12.58% 339 Up ×1
BX Blackstone Inc. Common Stock $188,218 10.16% 1,597 Up ×1
KYTX Kyverna Therapeutics, Inc. - Common Stock $110,009 5.94% 12,347 $-52,003 Down ×1
LXEO Lexeo Therapeutics, Inc. - Common Stock $78,959 4.26% 16,962 $-1,073 Up ×1
XFOR X4 Pharmaceuticals, Inc. - Common Stock $72,650 3.92% 15,557 $8,401
IKT Inhibikase Therapeutics, Inc. - Common Stock $57,759 3.12% 28,453 $9,958
ALXO ALX Oncology Holdings Inc. - Common Stock $43,358 2.34% 20,946 $1,362

Conviction holdings

Positions increased for 3+ consecutive quarters.

Share counts are as reported in 13F filings (not split-adjusted)

Security Value % of portfolio Streak
BRKB $377,128 20.35% up ×5

Biggest new bets

New positions opened this quarter, largest first.

Security Value Shares % of portfolio
Unknown issuer (CUSIP: 84615Q103) $445,346 2,606 24.03%
GOOGL $246,906 691 13.32%
VOO $233,094 339 12.58%
BX $188,218 1,597 10.16%

Top movers (QoQ)

Security Action Shares Δ Value Δ
KYTX Trimmed -6K -$52K
BRKB Bought more +27 +$29K
IKT Price move only +0 +$10K
XFOR Price move only +0 +$8K
ALXO Price move only +0 +$1K
LXEO Bought more +3K -$1K

Exited positions

Includes corporate events (mergers, delistings) — not all exits are sells

Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.

SecurityQuarter Shares before Value before Price since exit
RZLT Dec. 31, 2025 1,986,818 $18,676,089 104.0%
XERS March 31, 2025 2,015,157 $6,831,382 63.2%
GLD June 30, 2026 7,623 $3,279,923 No longer tracked
SPY March 31, 2025 2,823 $1,654,494 No longer tracked
SYRE March 31, 2026 8,919 $292,194 109.4%
ELVN Dec. 31, 2025 13,097 $268,106 282.9%
MNMD March 31, 2026 15,688 $210,058 No longer tracked
BCAX Dec. 31, 2025 10,941 $172,760 55.5%
CMPX March 31, 2026 29,495 $158,386 -53.0%
GLYC March 31, 2025 203,578 $50,895 No longer tracked
CRDF June 30, 2025 13,287 $41,721 -71.3%
SABS March 31, 2026 10,527 $39,371 0.5%
CNTX March 31, 2026 18,403 $27,053 -82.0%
ACET June 30, 2025 17,488 $13,203 1430.3%