Atika Capital Management’s Acadia Healthcare ACHC Stock Holding History

Atika Capital Management’s Portfolio ACHC Stock Details ACHC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-122,600	Closed	-$2.87M	–	82
2026 Q1	$2.87M	Buy	+122,600	New	+$2.22M	0.36%	55
2024 Q1	–	Sell	-75,000	Closed	-$5.83M	–	89
2023 Q4	$5.83M	Sell	75,000 -18,000	-19%	-$1.33M	0.78%	54
2023 Q3	$6.54M	Sell	93,000 -13,200	-12%	-$986K	0.86%	46
2023 Q2	$8.46M	Sell	106,200 -32,800	-24%	-$2.37M	0.85%	44
2023 Q1	$10M	Sell	139,000 -87,939	-39%	-$6.85M	1.48%	21
2022 Q4	$18.7M	Sell	226,939 -58,061	-20%	-$4.79M	2.69%	10
2022 Q3	$22.3M	Buy	285,000 +70,730	+33%	+$5.65M	1.89%	15
2022 Q2	$14.5M	Buy	+214,270	New	+$14.9M	1.63%	20
2022 Q1	–	Sell	-157,200	Closed	-$9.54M	–	71
2021 Q4	$9.54M	Sell	157,200 -5,000	-3%	-$298K	0.67%	59
2021 Q3	$10.3M	Buy	162,200 +21,200	+15%	+$1.34M	0.62%	58
2021 Q2	$8.85M	Buy	141,000 +43,000	+44%	+$2.7M	0.7%	56
2021 Q1	$5.6M	Buy	+98,000	New	+$5.3M	0.49%	73
2017 Q4	–	Sell	-59,000	Closed	-$2.82M	–	67
2017 Q3	$2.82M	Sell	59,000 -32,000	-35%	-$1.56M	0.81%	50
2017 Q2	$4.49M	Buy	91,000 +19,000	+26%	+$842K	1.57%	17
2017 Q1	$3.14M	Buy	+72,000	New	+$2.92M	1.54%	26
2015 Q4	–	Sell	-43,454	Closed	-$2.88M	–	57
2015 Q3	$2.88M	Buy	43,454 +5,904	+16%	+$454K	1.41%	30
2015 Q2	$2.94M	Buy	37,550 +7,550	+25%	+$543K	1.32%	33
2015 Q1	$2.15M	Buy	30,000 +2,000	+7%	+$128K	1.43%	32
2014 Q4	$1.71M	Buy	28,000 +6,000	+27%	+$349K	1.25%	33
2014 Q3	$1.07M	Buy	+22,000	New	+$1.08M	0.82%	49

Other funds holding ACHC

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

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

CCM

Carronade Capital Management Darien, Connecticut $5.77B AUM 89.67% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return

DCM

DME Capital Management New York $3.91B AUM 36.1% 1-Year Est. Return

FCM

Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return

ABI

Abrams Bison Investments Bethesda, Maryland $2.05B AUM 71.03% 1-Year Est. Return

Atika Capital Management's ACHC Position: Q2 2026 in Review

Atika Capital Management sold out of Acadia Healthcare (ACHC) in Q2 2026, closing a stake of 122,600 shares — an estimated $2.87M sold.

Atika Capital Management first reported a position in ACHC in Q3 2014 and held it in 20 quarters. The position peaked at $22.3M in Q3 2022. 314 funds tracked by Wall St. Rank hold ACHC as of Q2 2026.

Atika Capital Management reported no remaining Acadia Healthcare position as of Q2 2026 after selling out during the quarter.
Atika Capital Management sold 122,600 Acadia Healthcare shares in Q2 2026, an estimated $2.87M.
Atika Capital Management first reported a position in Acadia Healthcare in Q3 2014 and held it in 20 quarters.
Atika Capital Management's Acadia Healthcare position peaked at $22.3M in Q3 2022.
314 funds tracked by Wall St. Rank held Acadia Healthcare as of Q2 2026.

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