MF
AACBR

Magnetar Financial’s Artius II Acquisition Inc Rights AACBR Stock Holding History

Magnetar Financial’s Portfolio AACBR Stock Details AACBR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$126K Hold
600,000
– – ﹤0.01% 1027
2026
Q1 		$163K Hold
600,000
– – ﹤0.01% 929
2025
Q4 		$198K Hold
600,000
– – ﹤0.01% 798
2025
Q3 		$144K Hold
600,000
– – ﹤0.01% 802
2025
Q2 		$168K Buy
+600,000
New +$135K ﹤0.01% 817

Other funds holding AACBR

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return
SC
Sculptor Capital New York $12.3B AUM 40.26% 1-Year Est. Return
HIM
HGC Investment Management Toronto, Ontario, Canada $507M AUM 6.15% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
HCI
Harraden Circle Investments New York $784M AUM 20.59% 1-Year Est. Return
AIMCA
Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $17.9B AUM 27.56% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
MC
Meteora Capital Boca Raton, Florida $1.21B AUM 13.69% 1-Year Est. Return

Magnetar Financial's AACBR Position: Q2 2026 in Review

Magnetar Financial held its Artius II Acquisition Inc Rights (AACBR) position steady in Q2 2026 at 600,000 shares worth $126K. The position accounts for ﹤0.01% of the portfolio, ranked #1027.

Magnetar Financial first reported a position in AACBR in Q2 2025 and has held it in 5 quarters since. The position peaked at $198K in Q4 2025. 33 funds tracked by Wall St. Rank hold AACBR as of Q2 2026.

  • Magnetar Financial held 600,000 shares of Artius II Acquisition Inc Rights worth $126K as of Q2 2026.
  • Magnetar Financial left its Artius II Acquisition Inc Rights share count unchanged in Q2 2026.
  • Artius II Acquisition Inc Rights made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #1027 holding.
  • Magnetar Financial first reported a position in Artius II Acquisition Inc Rights in Q2 2025 and has held it in 5 quarters since.
  • Magnetar Financial's Artius II Acquisition Inc Rights position peaked at $198K in Q4 2025.
  • 33 funds tracked by Wall St. Rank held Artius II Acquisition Inc Rights as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.