Calamos Advisors
HDRN

Calamos Advisors’s Hadron Energy HDRN Stock Holding History

Calamos Advisors’s Portfolio HDRN Stock Details HDRN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-925,000
Closed -$9.75M – 1013
2025
Q3 		$9.75M Hold
925,000
– – 0.04% 407
2025
Q2 		$9.57M Hold
925,000
– – 0.04% 417
2025
Q1 		$9.41M Buy
+925,000
New +$9.32M 0.04% 406

Other funds holding HDRN

TCM
Tenor Capital Management New York $7.09B AUM 3.55% 1-Year Est. Return
HCM
Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
AC
Aristeia Capital Greenwich, Connecticut $7.69B AUM 15.48% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $86.4B AUM 59.51% 1-Year Est. Return
YCM
Yakira Capital Management Westport, Connecticut $351M AUM 21.82% 1-Year Est. Return
WA
Whitebox Advisors Minneapolis, Minnesota $7.65B AUM 13.87% 1-Year Est. Return

Calamos Advisors's HDRN Position: Q4 2025 in Review

Calamos Advisors sold out of Hadron Energy (HDRN) in Q4 2025, closing a stake of 925,000 shares — an estimated $9.75M sold.

Calamos Advisors first reported a position in HDRN in Q1 2025 and held it in 3 quarters. The position peaked at $9.75M in Q3 2025. 42 funds tracked by Wall St. Rank hold HDRN as of Q4 2025.

  • Calamos Advisors reported no remaining Hadron Energy position as of Q4 2025 after selling out during the quarter.
  • Calamos Advisors sold 925,000 Hadron Energy shares in Q4 2025, an estimated $9.75M.
  • Calamos Advisors first reported a position in Hadron Energy in Q1 2025 and held it in 3 quarters.
  • Calamos Advisors's Hadron Energy position peaked at $9.75M in Q3 2025.
  • 42 funds tracked by Wall St. Rank held Hadron Energy as of Q4 2025.

Based on Calamos Advisors's 13F filing for Q4 2025, filed 29 Jan 2026.