Massachusetts Financial Services
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Massachusetts Financial Services’s Pulse Biosciences PLSE Stock Holding History

Massachusetts Financial Services’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
Q2 		$12.8M Sell
462,734
-165
-0% -$3.89K ﹤0.01% 743
2026
Q1 		$9.99M Buy
+462,899
New +$8.54M ﹤0.01% 725

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 $1.55T AUM 33.47% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Massachusetts Financial Services's PLSE Position: Q2 2026 in Review

Massachusetts Financial Services reduced its Pulse Biosciences (PLSE) stake by 0.04% in Q2 2026, selling an estimated $3.89K and leaving 462,734 shares worth $12.8M. The position accounts for ﹤0.01% of the portfolio, ranked #743.

Massachusetts Financial Services first reported a position in PLSE in Q1 2026 and has held it in 2 quarters since. 106 funds tracked by Wall St. Rank hold PLSE as of Q2 2026.

  • Massachusetts Financial Services held 462,734 shares of Pulse Biosciences worth $12.8M as of Q2 2026.
  • Massachusetts Financial Services sold 165 Pulse Biosciences shares in Q2 2026, an estimated $3.89K.
  • Pulse Biosciences made up ﹤0.01% of Massachusetts Financial Services's portfolio in Q2 2026, its #743 holding.
  • Massachusetts Financial Services first reported a position in Pulse Biosciences in Q1 2026 and has held it in 2 quarters since.
  • 106 funds tracked by Wall St. Rank held Pulse Biosciences as of Q2 2026.

Based on Massachusetts Financial Services's 13F filing for Q2 2026, filed 3 Aug 2026.