Ken Griffin
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Ken Griffin’s Pulse Biosciences PLSE Stock Holding History

Ken Griffin’s Portfolio PLSE Stock Details PLSE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$263K Sell
12,200
-6,600
-35% -$122K ﹤0.01% 10774
2025
Q4 		$258K Sell
18,800
-5,200
-22% -$81K ﹤0.01% 10466
2025
Q3 		$425K Sell
24,000
-9,600
-29% -$152K ﹤0.01% 9531
2025
Q2 		$507K Sell
33,600
-27,200
-45% -$451K ﹤0.01% 8591
2025
Q1 		$978K Buy
60,800
+8,800
+17% +$164K ﹤0.01% 7010
2024
Q4 		$905K Buy
52,000
+5,800
+13% +$102K ﹤0.01% 7250
2024
Q3 		$810K Sell
46,200
-2,400
-5% -$40.9K ﹤0.01% 7279
2024
Q2 		$544K Sell
48,600
-4,200
-8% -$39.6K ﹤0.01% 7880
2024
Q1 		$460K Buy
52,800
+41,700
+376% +$383K ﹤0.01% 8578
2023
Q4 		$136K Buy
11,100
+9,900
+825% +$68.6K ﹤0.01% 10543
2023
Q3 		$4.84K Buy
+1,200
New +$7.46K ﹤0.01% 13447
2023
Q2 		– Sell
-9,500
Closed -$31.9K – 15031
2023
Q1 		$31.9K Sell
9,500
-35,500
-79% -$107K ﹤0.01% 12665
2022
Q4 		$125K Buy
+45,000
New +$101K ﹤0.01% 10889
2022
Q1 		– Sell
-25,800
Closed -$382K – 14348
2021
Q4 		$382K Sell
25,800
-9,700
-27% -$193K ﹤0.01% 10342
2021
Q3 		$767K Buy
+35,500
New +$764K ﹤0.01% 8822

Other funds holding PLSE

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PCM
Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
GAM
Griffin Asset Management New York $949M AUM 24.98% 1-Year Est. Return
LP
LMR Partners London, United Kingdom $45.4B AUM 60.47% 1-Year Est. Return

Ken Griffin's PLSE Position: Q1 2026 in Review

Ken Griffin increased its Pulse Biosciences (PLSE) stake by 242% in Q1 2026, buying an estimated $1.86M and bringing the position to 142,150 shares worth $3.07M. The position accounts for ﹤0.01% of the portfolio, ranked #5219.

Ken Griffin first reported a position in PLSE in Q4 2017 and has held it in 15 quarters since. The position peaked at $7.97M in Q4 2017. 96 funds tracked by Wall St. Rank hold PLSE as of Q1 2026.

  • Ken Griffin held 142,150 shares of Pulse Biosciences worth $3.07M as of Q1 2026.
  • Ken Griffin bought 100,620 Pulse Biosciences shares in Q1 2026, an estimated $1.86M.
  • Pulse Biosciences made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #5219 holding.
  • Ken Griffin first reported a position in Pulse Biosciences in Q4 2017 and has held it in 15 quarters since.
  • Ken Griffin's Pulse Biosciences position peaked at $7.97M in Q4 2017.
  • 96 funds tracked by Wall St. Rank held Pulse Biosciences as of Q1 2026.

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