William Blair & Company
TENB icon

William Blair & Company’s Tenable Holdings TENB Stock Holding History

William Blair & Company’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 		$1.12M Sell
30,395
-228
-0.7% -$5.36K ﹤0.01% 943
2026
Q1 		$518K Sell
30,623
-112
-0.4% -$2.35K ﹤0.01% 1137
2025
Q4 		$723K Sell
30,735
-16,775
-35% -$458K ﹤0.01% 1022
2025
Q3 		$1.39M Sell
47,510
-106,200
-69% -$3.32M ﹤0.01% 833
2025
Q2 		$5.19M Sell
153,710
-16,276
-10% -$528K 0.01% 485
2025
Q1 		$5.95M Sell
169,986
-42,131
-20% -$1.65M 0.02% 438
2024
Q4 		$8.35M Sell
212,117
-59,501
-22% -$2.47M 0.02% 372
2024
Q3 		$11M Sell
271,618
-2,712
-1% -$113K 0.03% 332
2024
Q2 		$12M Sell
274,330
-21,556
-7% -$951K 0.04% 298
2024
Q1 		$14.6M Buy
295,886
+25,760
+10% +$1.22M 0.05% 266
2023
Q4 		$12.4M Sell
270,126
-39,728
-13% -$1.67M 0.04% 280
2023
Q3 		$13.9M Sell
309,854
-8,632
-3% -$388K 0.05% 250
2023
Q2 		$13.9M Sell
318,486
-114,574
-26% -$4.68M 0.05% 265
2023
Q1 		$20.6M Buy
433,060
+6,698
+2% +$284K 0.08% 201
2022
Q4 		$16.3M Sell
426,362
-13,909
-3% -$510K 0.07% 219
2022
Q3 		$15.3M Buy
440,271
+13,544
+3% +$568K 0.07% 216
2022
Q2 		$19.4M Sell
426,727
-25,664
-6% -$1.32M 0.09% 199
2022
Q1 		$26.1M Buy
452,391
+8,301
+2% +$429K 0.09% 192
2021
Q4 		$24.5M Buy
444,090
+11,354
+3% +$588K 0.08% 215
2021
Q3 		$20M Sell
432,736
-11,071
-2% -$486K 0.07% 225
2021
Q2 		$18.4M Buy
443,807
+8,396
+2% +$341K 0.06% 233
2021
Q1 		$15.8M Sell
435,411
-12,167
-3% -$550K 0.06% 243
2020
Q4 		$23.4M Buy
447,578
+2,953
+0.7% +$117K 0.09% 196
2020
Q3 		$16.8M Sell
444,625
-361
-0.1% -$12.4K 0.07% 210
2020
Q2 		$13.3M Buy
444,986
+40,260
+10% +$1.09M 0.06% 224
2020
Q1 		$8.85M Buy
404,726
+79,837
+25% +$1.97M 0.06% 249
2019
Q4 		$7.78M Buy
324,889
+202,633
+166% +$4.94M 0.04% 303
2019
Q3 		$2.74M Buy
+122,256
New +$3.1M 0.02% 503
2018
Q4 		– Sell
-31,625
Closed -$1.23M – 1781
2018
Q3 		$1.23M Buy
+31,625
New +$1.05M 0.01% 676

Other funds holding TENB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SCM
Shapiro Capital Management Atlanta, Georgia $1.65B AUM 26.74% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return
SAM
SEB Asset Management Stockholm $26.6B AUM
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
PA
Pinnacle Associates New York $9.16B AUM 63.5% 1-Year Est. Return
Vontobel Holding
Vontobel Holding Zurich, Switzerland $31.4B AUM 31.97% 1-Year Est. Return
Nordea Investment Management
Nordea Investment Management Stockholm, Sweden $123B AUM 38.85% 1-Year Est. Return

William Blair & Company's TENB Position: Q2 2026 in Review

William Blair & Company reduced its Tenable Holdings (TENB) stake by 0.74% in Q2 2026, selling an estimated $5.36K and leaving 30,395 shares worth $1.12M. The position accounts for ﹤0.01% of the portfolio, ranked #943.

William Blair & Company first reported a position in TENB in Q3 2018 and has held it in 29 quarters since. The position peaked at $26.1M in Q1 2022. 138 funds tracked by Wall St. Rank hold TENB as of Q2 2026.

  • William Blair & Company held 30,395 shares of Tenable Holdings worth $1.12M as of Q2 2026.
  • William Blair & Company sold 228 Tenable Holdings shares in Q2 2026, an estimated $5.36K.
  • Tenable Holdings made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #943 holding.
  • William Blair & Company first reported a position in Tenable Holdings in Q3 2018 and has held it in 29 quarters since.
  • William Blair & Company's Tenable Holdings position peaked at $26.1M in Q1 2022.
  • 138 funds tracked by Wall St. Rank held Tenable Holdings as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.