Ken Griffin
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Ken Griffin’s IRIDEX IRIX Stock Holding History

Ken Griffin’s Portfolio IRIX Stock Details IRIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$61.5K Buy
60,851
+26,456
+77% +$36.1K ﹤0.01% 12320
2025
Q4 		$39.2K Sell
34,395
-75,078
-69% -$77.3K ﹤0.01% 12140
2025
Q3 		$126K Buy
109,473
+78,302
+251% +$96.3K ﹤0.01% 11668
2025
Q2 		$27.5K Sell
31,171
-43,077
-58% -$43.9K ﹤0.01% 12014
2025
Q1 		$73.5K Buy
74,248
+6,595
+10% +$9.32K ﹤0.01% 11855
2024
Q4 		$114K Buy
67,653
+17,377
+35% +$28.7K ﹤0.01% 11277
2024
Q3 		$88K Buy
50,276
+8,918
+22% +$17.5K ﹤0.01% 11290
2024
Q2 		$89.3K Buy
41,358
+2,458
+6% +$6.58K ﹤0.01% 11073
2024
Q1 		$116K Buy
38,900
+31,869
+453% +$86.1K ﹤0.01% 11154
2023
Q4 		$19.8K Buy
7,031
+6,932
+7,002% +$18.2K ﹤0.01% 12631
2023
Q3 		$251 Sell
99
-10,943
-99% -$20.8K ﹤0.01% 14113
2023
Q2 		$24K Sell
11,042
-1,181
-10% -$2.59K ﹤0.01% 12573
2023
Q1 		$25.4K Buy
12,223
+2,990
+32% +$6.61K ﹤0.01% 12871
2022
Q4 		$18.6K Buy
+9,233
New +$20.5K ﹤0.01% 13203
2021
Q3 		– Sell
-13,104
Closed -$92K – 14220
2021
Q2 		$92K Buy
+13,104
New +$99.5K ﹤0.01% 12980

Other funds holding IRIX

PAPAIJV
Paragon Associates & Paragon Associates II Joint Venture Dallas, Texas $73.6M AUM 61.93% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
WCM
Weber Capital Management San Francisco, California $118M AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
UCFA
United Capital Financial Advisors Irving, Texas $16.3B AUM 16.34% 1-Year Est. Return
PCM
Perkins Capital Management Wayzata, Minnesota $133M AUM 127.86% 1-Year Est. Return
TDC
Thompson Davis & Co Richmond, Virginia $167M AUM 33.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Ken Griffin's IRIX Position: Q1 2026 in Review

Ken Griffin increased its IRIDEX (IRIX) stake by 77% in Q1 2026, buying an estimated $36.1K and bringing the position to 60,851 shares worth $61.5K. The position accounts for ﹤0.01% of the portfolio, ranked #12320.

Ken Griffin first reported a position in IRIX in Q2 2021 and has held it in 15 quarters since. The position peaked at $126K in Q3 2025. 25 funds tracked by Wall St. Rank hold IRIX as of Q1 2026.

  • Ken Griffin held 60,851 shares of IRIDEX worth $61.5K as of Q1 2026.
  • Ken Griffin bought 26,456 IRIDEX shares in Q1 2026, an estimated $36.1K.
  • IRIDEX made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #12320 holding.
  • Ken Griffin first reported a position in IRIDEX in Q2 2021 and has held it in 15 quarters since.
  • Ken Griffin's IRIDEX position peaked at $126K in Q3 2025.
  • 25 funds tracked by Wall St. Rank held IRIDEX as of Q1 2026.

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