William Blair Investment Management
MATX icon

William Blair Investment Management’s Matsons MATX Stock Holding History

William Blair Investment Management’s Portfolio MATX Stock Details MATX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$25.4M Sell
132,082
-35,047
-21% -$6.39M 0.08% 215
2026
Q1 		$27.4M Buy
167,129
+5,569
+3% +$866K 0.09% 206
2025
Q4 		$20M Sell
161,560
-16,595
-9% -$1.78M 0.06% 271
2025
Q3 		$17.6M Sell
178,155
-10,776
-6% -$1.15M 0.05% 290
2025
Q2 		$21M Buy
+188,931
New +$20.7M 0.06% 280
2021
Q4 		– Sell
-626,905
Closed -$50.6M – 447
2021
Q3 		$50.6M Buy
626,905
+626,037
+72,124% +$46.3M 0.14% 163
2021
Q2 		$56K Buy
+868
New +$56.7K ﹤0.01% 450
2019
Q4 		– Sell
-445,823
Closed -$16.7M – 369
2019
Q3 		$16.7M Buy
445,823
+42,899
+11% +$1.63M 0.07% 231
2019
Q2 		$15.7M Buy
402,924
+15,995
+4% +$605K 0.07% 256
2019
Q1 		$14M Buy
386,929
+29,822
+8% +$1.03M 0.06% 280
2018
Q4 		$11.4M Sell
357,107
-53,526
-13% -$1.98M 0.06% 283
2018
Q3 		$16.3M Buy
410,633
+23,214
+6% +$860K 0.06% 285
2018
Q2 		$14.9M Buy
+387,419
New +$12.9M 0.06% 288
2017
Q1 		– Sell
-408,507
Closed -$14.5M – 450
2016
Q4 		$14.5M Sell
408,507
-2,309
-0.6% -$89K 0.06% 281
2016
Q3 		$16.4M Sell
410,816
-8,001
-2% -$297K 0.06% 264
2016
Q2 		$13.5M Buy
418,817
+14,825
+4% +$513K 0.05% 262
2016
Q1 		$16.2M Buy
403,992
+9,786
+2% +$383K 0.06% 240
2015
Q4 		$16.8M Buy
394,206
+30,422
+8% +$1.42M 0.07% 230
2015
Q3 		$14M Buy
+363,784
New +$14.4M 0.03% 604

Other funds holding MATX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

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

William Blair Investment Management reduced its Matsons (MATX) stake by 21% in Q2 2026, selling an estimated $6.39M and leaving 132,082 shares worth $25.4M. The position accounts for 0.08% of the portfolio, ranked #215.

William Blair Investment Management first reported a position in MATX in Q3 2015 and has held it in 19 quarters since. The position peaked at $50.6M in Q3 2021. 426 funds tracked by Wall St. Rank hold MATX as of Q2 2026.

  • William Blair Investment Management held 132,082 shares of Matsons worth $25.4M as of Q2 2026.
  • William Blair Investment Management sold 35,047 Matsons shares in Q2 2026, an estimated $6.39M.
  • Matsons made up 0.08% of William Blair Investment Management's portfolio in Q2 2026, its #215 holding.
  • William Blair Investment Management first reported a position in Matsons in Q3 2015 and has held it in 19 quarters since.
  • William Blair Investment Management's Matsons position peaked at $50.6M in Q3 2021.
  • 426 funds tracked by Wall St. Rank held Matsons as of Q2 2026.

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