Ken Griffin
BYRN icon

Ken Griffin’s Byrna Technologies BYRN Stock Holding History

Ken Griffin’s Portfolio BYRN Stock Details BYRN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$136K Sell
14,800
-5,700
-28% -$74.8K ﹤0.01% 11771
2025
Q4 		$344K Sell
20,500
-15,900
-44% -$310K ﹤0.01% 9839
2025
Q3 		$807K Buy
36,400
+20,200
+125% +$448K ﹤0.01% 8015
2025
Q2 		$500K Sell
16,200
-1,600
-9% -$39.1K ﹤0.01% 8628
2025
Q1 		$300K Sell
17,800
-24,100
-58% -$623K ﹤0.01% 9601
2024
Q4 		$1.21M Buy
41,900
+17,300
+70% +$339K ﹤0.01% 6637
2024
Q3 		$417K Buy
24,600
+22,200
+925% +$263K ﹤0.01% 8649
2024
Q2 		$24K Sell
2,400
-35,900
-94% -$443K ﹤0.01% 12480
2024
Q1 		$534K Buy
+38,300
New +$371K ﹤0.01% 8250
2023
Q3 		– Sell
-3,000
Closed -$15K – 14331
2023
Q2 		$15K Buy
3,000
+2,400
+400% +$13K ﹤0.01% 12968
2023
Q1 		$4.55K Sell
600
-400
-40% -$3.55K ﹤0.01% 13945
2022
Q4 		$7.84K Buy
+1,000
New +$7.48K ﹤0.01% 13791

Other funds holding BYRN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
WANY
Wealthspire Advisors (New York) New York $18.2B AUM 21.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
EA
Emerald Advisers Leola, Pennsylvania $4.25B AUM 141.71% 1-Year Est. Return
PA
Pinnacle Associates New York $9.16B AUM 63.5% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Ken Griffin's BYRN Position: Q1 2026 in Review

Ken Griffin reduced its Byrna Technologies (BYRN) stake by 62% in Q1 2026, selling an estimated $727K and leaving 33,422 shares worth $307K. The position accounts for ﹤0.01% of the portfolio, ranked #10422.

Ken Griffin first reported a position in BYRN in Q3 2021 and has held it in 16 quarters since. The position peaked at $5.59M in Q3 2025. 121 funds tracked by Wall St. Rank hold BYRN as of Q1 2026.

  • Ken Griffin held 33,422 shares of Byrna Technologies worth $307K as of Q1 2026.
  • Ken Griffin sold 55,396 Byrna Technologies shares in Q1 2026, an estimated $727K.
  • Byrna Technologies made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #10422 holding.
  • Ken Griffin first reported a position in Byrna Technologies in Q3 2021 and has held it in 16 quarters since.
  • Ken Griffin's Byrna Technologies position peaked at $5.59M in Q3 2025.
  • 121 funds tracked by Wall St. Rank held Byrna Technologies as of Q1 2026.

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