William Blair Investment Management
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William Blair Investment Management’s Flowserve FLS Stock Holding History

William Blair Investment Management’s Portfolio FLS Stock Details FLS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$84.9M Buy
1,144,401
+220,228
+24% +$16.7M 0.26% 114
2026
Q1 		$67.9M Sell
924,173
-123,964
-12% -$9.82M 0.22% 118
2025
Q4 		$72.7M Buy
1,048,137
+615,769
+142% +$39.6M 0.2% 122
2025
Q3 		$23M Buy
432,368
+3,112
+0.7% +$169K 0.06% 275
2025
Q2 		$22.5M Buy
429,256
+420,835
+4,997% +$19.8M 0.06% 271
2025
Q1 		$411K Buy
8,421
+1,919
+30% +$109K ﹤0.01% 391
2024
Q4 		$374K Sell
6,502
-2,984
-31% -$171K ﹤0.01% 410
2024
Q3 		$490K Sell
9,486
-110
-1% -$5.3K ﹤0.01% 368
2024
Q2 		$462K Sell
9,596
-1,228
-11% -$58.8K ﹤0.01% 373
2024
Q1 		$494K Sell
10,824
-1,266
-10% -$53.3K ﹤0.01% 360
2023
Q4 		$498K Sell
12,090
-216
-2% -$8.3K ﹤0.01% 359
2023
Q3 		$489K Buy
12,306
+4,700
+62% +$181K ﹤0.01% 358
2023
Q2 		$283K Buy
7,606
+1,298
+21% +$45K ﹤0.01% 373
2023
Q1 		$214K Buy
+6,308
New +$211K ﹤0.01% 383
2022
Q2 		– Sell
-12,996
Closed -$467K – 417
2022
Q1 		$467K Buy
12,996
+547
+4% +$17.9K ﹤0.01% 406
2021
Q4 		$381K Buy
12,449
+4,262
+52% +$141K ﹤0.01% 410
2021
Q3 		$284K Buy
+8,187
New +$320K ﹤0.01% 421
2017
Q4 		– Sell
-14,445
Closed -$615K – 441
2017
Q3 		$615K Sell
14,445
-2,335
-14% -$98.2K ﹤0.01% 428
2017
Q2 		$779K Buy
+16,780
New +$809K ﹤0.01% 427
2016
Q3 		– Sell
-10,391
Closed -$469K – 454
2016
Q2 		$469K Buy
10,391
+3,931
+61% +$184K ﹤0.01% 438
2016
Q1 		$287K Sell
6,460
-892
-12% -$36.8K ﹤0.01% 443
2015
Q4 		$309K Buy
+7,352
New +$325K ﹤0.01% 439

Other funds holding FLS

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
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
DCP
D1 Capital Partners New York $34.8B AUM 11.34% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return
BGC
Beutel, Goodman & Co Toronto, Ontario, Canada $13.6B AUM 17.82% 1-Year Est. Return

William Blair Investment Management's FLS Position: Q2 2026 in Review

William Blair Investment Management increased its Flowserve (FLS) stake by 24% in Q2 2026, buying an estimated $16.7M and bringing the position to 1,144,401 shares worth $84.9M. The position accounts for 0.26% of the portfolio, ranked #114.

William Blair Investment Management first reported a position in FLS in Q4 2015 and has held it in 22 quarters since. 589 funds tracked by Wall St. Rank hold FLS as of Q2 2026.

  • William Blair Investment Management held 1,144,401 shares of Flowserve worth $84.9M as of Q2 2026.
  • William Blair Investment Management bought 220,228 Flowserve shares in Q2 2026, an estimated $16.7M.
  • Flowserve made up 0.26% of William Blair Investment Management's portfolio in Q2 2026, its #114 holding.
  • William Blair Investment Management first reported a position in Flowserve in Q4 2015 and has held it in 22 quarters since.
  • 589 funds tracked by Wall St. Rank held Flowserve as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.