William Blair & Company
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William Blair & Company’s Certara CERT Stock Holding History

William Blair & Company’s Portfolio CERT Stock Details CERT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-14,299
Closed -$152K – 1815
2024
Q4 		$152K Sell
14,299
-16
-0.1% -$174 ﹤0.01% 1482
2024
Q3 		$168K Sell
14,315
-3,340
-19% -$44.1K ﹤0.01% 1471
2024
Q2 		$245K Sell
17,655
-2,961
-14% -$48.6K ﹤0.01% 1333
2024
Q1 		$369K Sell
20,616
-105,524
-84% -$1.82M ﹤0.01% 1178
2023
Q4 		$2.22M Sell
126,140
-21,688
-15% -$318K 0.01% 654
2023
Q3 		$2.15M Sell
147,828
-8,671
-6% -$146K 0.01% 635
2023
Q2 		$2.85M Sell
156,499
-3,264
-2% -$68.9K 0.01% 582
2023
Q1 		$3.85M Sell
159,763
-1,517
-0.9% -$30K 0.02% 492
2022
Q4 		$2.59M Sell
161,280
-3,659
-2% -$53.1K 0.01% 567
2022
Q3 		$2.19M Sell
164,939
-18,743
-10% -$346K 0.01% 601
2022
Q2 		$3.94M Sell
183,682
-16,936
-8% -$334K 0.02% 474
2022
Q1 		$4.31M Buy
200,618
+138,244
+222% +$3.32M 0.02% 499
2021
Q4 		$1.77M Buy
62,374
+22,389
+56% +$753K 0.01% 760
2021
Q3 		$1.32M Sell
39,985
-4,145
-9% -$125K ﹤0.01% 816
2021
Q2 		$1.25M Buy
44,130
+25,731
+140% +$714K ﹤0.01% 846
2021
Q1 		$502K Buy
18,399
+11,976
+186% +$398K ﹤0.01% 1116
2020
Q4 		$217K Buy
+6,423
New +$235K ﹤0.01% 1400

Other funds holding CERT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
ACH
ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 1-Year Est. Return
GCM
Geneva Capital Management Milwaukee, Wisconsin $4.71B AUM 6.32% 1-Year Est. Return
Teacher Retirement System of Texas
Teacher Retirement System of Texas Austin, Texas $24B AUM 29.51% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
BBHC
Brown Brothers Harriman & Co New York $18.6B AUM 15.81% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

William Blair & Company's CERT Position: Q1 2025 in Review

William Blair & Company sold out of Certara (CERT) in Q1 2025, closing a stake of 14,299 shares — an estimated $152K sold.

William Blair & Company first reported a position in CERT in Q4 2020 and held it in 17 quarters. The position peaked at $4.31M in Q1 2022. 239 funds tracked by Wall St. Rank hold CERT as of Q1 2025.

  • William Blair & Company reported no remaining Certara position as of Q1 2025 after selling out during the quarter.
  • William Blair & Company sold 14,299 Certara shares in Q1 2025, an estimated $152K.
  • William Blair & Company first reported a position in Certara in Q4 2020 and held it in 17 quarters.
  • William Blair & Company's Certara position peaked at $4.31M in Q1 2022.
  • 239 funds tracked by Wall St. Rank held Certara as of Q1 2025.

Based on William Blair & Company's 13F filing for Q1 2025, filed 9 May 2025.