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Portolan Capital Management’s Tenable Holdings TENB Stock Holding History

Portolan Capital Management’s Portfolio TENB Stock Details TENB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$14.3M Buy
+387,923
New +$9.12M 0.54% 64
2022
Q2 		– Sell
-195,897
Closed -$11.3M – 157
2022
Q1 		$11.3M Buy
+195,897
New +$10.1M 0.9% 37

Other funds holding TENB

Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
PCM
Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return

Portolan Capital Management's TENB Position: Q2 2026 in Review

Portolan Capital Management opened a new position in Tenable Holdings (TENB) in Q2 2026: 387,923 shares worth $14.3M. The stake represents 0.54% of the portfolio and ranks #64 among its holdings. This is a return to the name: Portolan Capital Management previously reported a position in TENB as recently as Q1 2022.

Portolan Capital Management first reported a position in TENB in Q1 2022 and has held it in 2 quarters since. 312 funds tracked by Wall St. Rank hold TENB as of Q2 2026.

  • Portolan Capital Management held 387,923 shares of Tenable Holdings worth $14.3M as of Q2 2026.
  • Tenable Holdings was a new Portolan Capital Management position in Q2 2026.
  • Tenable Holdings made up 0.54% of Portolan Capital Management's portfolio in Q2 2026, its #64 holding.
  • Portolan Capital Management first reported a position in Tenable Holdings in Q1 2022 and has held it in 2 quarters since.
  • 312 funds tracked by Wall St. Rank held Tenable Holdings as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.