Dark Forest Capital Management’s Innospec IOSP Stock Holding History

Dark Forest Capital Management’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	$3.16M	Buy	38,862 +13,219	+52%	+$1.05M	0.2%	147
2026 Q1	$1.87M	Sell	25,643 -18,881	-42%	-$1.47M	0.17%	170
2025 Q4	$3.41M	Buy	44,524 +10,726	+32%	+$810K	0.16%	195
2025 Q3	$2.61M	Buy	33,798 +4,601	+16%	+$384K	0.1%	364
2025 Q2	$2.46M	Buy	+29,197	New	+$2.56M	0.1%	362
2025 Q1	–	Sell	-2,631	Closed	-$290K	–	1330
2024 Q4	$290K	Buy	+2,631	New	+$301K	0.04%	684

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

Dark Forest Capital Management's IOSP Position: Q2 2026 in Review

Dark Forest Capital Management increased its Innospec (IOSP) stake by 52% in Q2 2026, buying an estimated $1.05M and bringing the position to 38,862 shares worth $3.16M. The position accounts for 0.2% of the portfolio, ranked #147.

Dark Forest Capital Management first reported a position in IOSP in Q4 2024 and has held it in 6 quarters since. The position peaked at $3.41M in Q4 2025. 282 funds tracked by Wall St. Rank hold IOSP as of Q2 2026.

Dark Forest Capital Management held 38,862 shares of Innospec worth $3.16M as of Q2 2026.
Dark Forest Capital Management bought 13,219 Innospec shares in Q2 2026, an estimated $1.05M.
Innospec made up 0.2% of Dark Forest Capital Management's portfolio in Q2 2026, its #147 holding.
Dark Forest Capital Management first reported a position in Innospec in Q4 2024 and has held it in 6 quarters since.
Dark Forest Capital Management's Innospec position peaked at $3.41M in Q4 2025.
282 funds tracked by Wall St. Rank held Innospec as of Q2 2026.

Based on Dark Forest Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.