Ken Griffin
HSTM icon

Ken Griffin’s HealthStream HSTM Stock Holding History

Ken Griffin’s Portfolio HSTM Stock Details HSTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-100
Closed -$3.22K – 13606
2025
Q1 		$3.22K Sell
100
-1,900
-95% -$61.6K ﹤0.01% 13981
2024
Q4 		$63.6K Hold
2,000
– – ﹤0.01% 12112
2024
Q3 		$57.7K Sell
2,000
-8,100
-80% -$232K ﹤0.01% 11753
2024
Q2 		$282K Buy
10,100
+9,500
+1,583% +$253K ﹤0.01% 9263
2024
Q1 		$16K Sell
600
-300
-33% -$8.03K ﹤0.01% 13155
2023
Q4 		$24.3K Sell
900
-200
-18% -$4.97K ﹤0.01% 12455
2023
Q3 		$23.7K Buy
+1,100
New +$24.3K ﹤0.01% 12483
2023
Q1 		– Sell
-100
Closed -$2.48K – 15036
2022
Q4 		$2.48K Buy
+100
New +$2.4K ﹤0.01% 14329

Other funds holding HSTM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
CCM
Copeland Capital Management Conshohocken, Pennsylvania $4.87B AUM 31.21% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Ken Griffin's HSTM Position: Q1 2026 in Review

Ken Griffin increased its HealthStream (HSTM) stake by 205% in Q1 2026, buying an estimated $1.13M and bringing the position to 78,765 shares worth $1.63M. The position accounts for ﹤0.01% of the portfolio, ranked #6543.

Ken Griffin first reported a position in HSTM in Q4 2013 and has held it in 49 quarters since. The position peaked at $4.92M in Q2 2024. 197 funds tracked by Wall St. Rank hold HSTM as of Q1 2026.

  • Ken Griffin held 78,765 shares of HealthStream worth $1.63M as of Q1 2026.
  • Ken Griffin bought 52,974 HealthStream shares in Q1 2026, an estimated $1.13M.
  • HealthStream made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #6543 holding.
  • Ken Griffin first reported a position in HealthStream in Q4 2013 and has held it in 49 quarters since.
  • Ken Griffin's HealthStream position peaked at $4.92M in Q2 2024.
  • 197 funds tracked by Wall St. Rank held HealthStream as of Q1 2026.

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