Brown Advisory’s Innospec IOSP Stock Holding History

Brown Advisory’s Portfolio IOSP Stock Details IOSP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$33.2M	Buy	408,468 +112,003	+38%	+$8.86M	0.05%	267
2026 Q1	$21.6M	Sell	296,465 -9,512	-3%	-$741K	0.04%	314
2025 Q4	$23.4M	Sell	305,977 -43,995	-13%	-$3.32M	0.03%	305
2025 Q3	$27M	Sell	349,972 -76,572	-18%	-$6.39M	0.04%	279
2025 Q2	$35.9M	Buy	426,544 +97,129	+29%	+$8.5M	0.05%	239
2025 Q1	$31.2M	Buy	+329,415	New	+$34.9M	0.04%	246
2021 Q1	–	Sell	-2,280	Closed	-$207K	–	1096
2020 Q4	$207K	Buy	+2,280	New	+$177K	﹤0.01%	965
2020 Q1	–	Sell	-2,249	Closed	-$233K	–	986
2019 Q4	$233K	Sell	2,249 -1,078	-32%	-$103K	﹤0.01%	946
2019 Q3	$297K	Hold	3,327	–	–	﹤0.01%	857
2019 Q2	$304K	Buy	3,327 +20	+0.6%	+$1.69K	﹤0.01%	868
2019 Q1	$276K	Sell	3,307 -1,233	-27%	-$91.9K	﹤0.01%	1147
2018 Q4	$280K	Buy	4,540 +28	+0.6%	+$1.93K	﹤0.01%	1093
2018 Q3	$346K	Hold	4,512	–	–	﹤0.01%	1111
2018 Q2	$345K	Buy	4,512 +26	+0.6%	+$1.95K	﹤0.01%	1063
2018 Q1	$308K	Sell	4,486 -1,547	-26%	-$108K	﹤0.01%	965
2017 Q4	$426K	Buy	6,033 +33	+0.6%	+$2.2K	﹤0.01%	925
2017 Q3	$370K	Hold	6,000	–	–	﹤0.01%	939
2017 Q2	$393K	Hold	6,000	–	–	﹤0.01%	926
2017 Q1	$388K	Buy	+6,000	New	+$402K	﹤0.01%	882
2014 Q3	–	Sell	-4,675	Closed	-$202K	–	951
2014 Q2	$202K	Buy	+4,675	New	+$201K	﹤0.01%	895
2013 Q4	–	Sell	-5,375	Closed	-$251K	–	957
2013 Q3	$251K	Buy	5,375 +50	+0.9%	+$2.15K	﹤0.01%	753
2013 Q2	$214K	Buy	+5,325	New	+$222K	﹤0.01%	754

Other funds holding IOSP

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Brown Advisory's IOSP Position: Q2 2026 in Review

Brown Advisory increased its Innospec (IOSP) stake by 38% in Q2 2026, buying an estimated $8.86M and bringing the position to 408,468 shares worth $33.2M. The position accounts for 0.05% of the portfolio, ranked #267.

Brown Advisory first reported a position in IOSP in Q2 2013 and has held it in 22 quarters since. The position peaked at $35.9M in Q2 2025. 282 funds tracked by Wall St. Rank hold IOSP as of Q2 2026.

Brown Advisory held 408,468 shares of Innospec worth $33.2M as of Q2 2026.
Brown Advisory bought 112,003 Innospec shares in Q2 2026, an estimated $8.86M.
Innospec made up 0.05% of Brown Advisory's portfolio in Q2 2026, its #267 holding.
Brown Advisory first reported a position in Innospec in Q2 2013 and has held it in 22 quarters since.
Brown Advisory's Innospec position peaked at $35.9M in Q2 2025.
282 funds tracked by Wall St. Rank held Innospec as of Q2 2026.

Based on Brown Advisory's 13F filing for Q2 2026, filed 14 Aug 2026.