Ken Griffin
MAGN

Ken Griffin’s Magnera Corp MAGN Stock Holding History

Ken Griffin’s Portfolio MAGN Stock Details MAGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-62,300
Closed -$730K – 14469
2025
Q3 		$730K Buy
62,300
+29,700
+91% +$369K ﹤0.01% 8241
2025
Q2 		$394K Buy
32,600
+22,100
+210% +$304K ﹤0.01% 9181
2025
Q1 		$191K Sell
10,500
-400
-4% -$7.78K ﹤0.01% 10517
2024
Q4 		$198K Buy
10,900
+10,515
+2,731% +$215K ﹤0.01% 10479
2024
Q3 		$9K Buy
385
+331
+613% +$6.93K ﹤0.01% 13278
2024
Q2 		$973 Buy
54
+23
+74% +$495 ﹤0.01% 13887
2024
Q1 		$800 Sell
31
-54
-64% -$1.28K ﹤0.01% 14248
2023
Q4 		$2.13K Sell
85
-184
-68% -$3.87K ﹤0.01% 13736
2023
Q3 		$7K Buy
269
+38
+16% +$1.26K ﹤0.01% 13285
2023
Q2 		$9.06K Sell
231
-461
-67% -$20.9K ﹤0.01% 13274
2023
Q1 		$28.7K Buy
692
+584
+541% +$26.9K ﹤0.01% 12776
2022
Q4 		$3.89K Buy
+108
New +$4.41K ﹤0.01% 14162
2022
Q3 		– Sell
-1,054
Closed -$94K – 13791
2022
Q2 		$94K Sell
1,054
-131
-11% -$15.7K ﹤0.01% 11475
2022
Q1 		$191K Buy
+1,185
New +$235K ﹤0.01% 11594
2021
Q3 		– Sell
-1,423
Closed -$258K – 14819
2021
Q2 		$258K Buy
1,423
+331
+30% +$65.2K ﹤0.01% 11630
2021
Q1 		$244K Buy
+1,092
New +$243K ﹤0.01% 11295

Other funds holding MAGN

NM
Newtyn Management New York $936M AUM 27.23% 1-Year Est. Return
LC
Littlejohn & Co Greenwich, Connecticut $106M AUM 7.38% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ECM
Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
MAP
Madison Avenue Partners New York $2.3B AUM 115.82% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DCM
DG Capital Management New York $475M AUM 36.12% 1-Year Est. Return
DCP
Diameter Capital Partners New York $1.07B AUM 152.29% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Ken Griffin's MAGN Position: Q1 2026 in Review

Ken Griffin reduced its Magnera Corp (MAGN) stake by 43% in Q1 2026, selling an estimated $3.01M and leaving 314,819 shares worth $2.99M. The position accounts for ﹤0.01% of the portfolio, ranked #5272.

Ken Griffin first reported a position in MAGN in Q2 2013 and has held it in 47 quarters since. The position peaked at $8.33M in Q4 2025. 175 funds tracked by Wall St. Rank hold MAGN as of Q1 2026.

  • Ken Griffin held 314,819 shares of Magnera Corp worth $2.99M as of Q1 2026.
  • Ken Griffin sold 235,573 Magnera Corp shares in Q1 2026, an estimated $3.01M.
  • Magnera Corp made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #5272 holding.
  • Ken Griffin first reported a position in Magnera Corp in Q2 2013 and has held it in 47 quarters since.
  • Ken Griffin's Magnera Corp position peaked at $8.33M in Q4 2025.
  • 175 funds tracked by Wall St. Rank held Magnera Corp as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.