Adage Capital Partners
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Adage Capital Partners’s Acadia Healthcare ACHC Stock Holding History

Adage Capital Partners’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 		$6.8M Buy
+230,140
New +$5.91M 0.01% 780
2025
Q4 		– Sell
-538,087
Closed -$13.3M – 909
2025
Q3 		$13.3M Sell
538,087
-7,493
-1% -$167K 0.02% 576
2025
Q2 		$12.4M Buy
545,580
+117,000
+27% +$2.77M 0.02% 567
2025
Q1 		$13M Buy
428,580
+175,000
+69% +$6.67M 0.02% 528
2024
Q4 		$10.1M Buy
253,580
+48,013
+23% +$2.17M 0.02% 605
2024
Q3 		$13M Buy
205,567
+61,192
+42% +$4.42M 0.02% 559
2024
Q2 		$9.75M Buy
144,375
+81,739
+130% +$5.71M 0.02% 613
2024
Q1 		$4.96M Sell
62,636
-244,694
-80% -$20M 0.01% 701
2023
Q4 		$23.9M Buy
+307,330
New +$22.7M 0.05% 375
2018
Q3 		– Sell
-300,000
Closed -$12.3M – 709
2018
Q2 		$12.3M Buy
300,000
+168,279
+128% +$6.79M 0.03% 524
2018
Q1 		$5.16M Sell
131,721
-540,000
-80% -$19.8M 0.01% 639
2017
Q4 		$21.9M Buy
671,721
+23,000
+4% +$797K 0.05% 387
2017
Q3 		$31M Sell
648,721
-14,100
-2% -$687K 0.08% 322
2017
Q2 		$32.7M Buy
662,821
+312,821
+89% +$13.9M 0.08% 319
2017
Q1 		$15.3M Sell
350,000
-100,000
-22% -$4.06M 0.04% 458
2016
Q4 		$14.9M Buy
450,000
+200,000
+80% +$7.76M 0.04% 443
2016
Q3 		$12.4M Hold
250,000
– – 0.03% 480
2016
Q2 		$13.8M Buy
+250,000
New +$14.6M 0.04% 451
2016
Q1 		– Sell
-150,000
Closed -$9.37M – 685
2015
Q4 		$9.37M Sell
150,000
-10,000
-6% -$651K 0.02% 536
2015
Q3 		$10.6M Buy
+160,000
New +$12.3M 0.03% 519
2014
Q3 		– Sell
-150,000
Closed -$6.83M – 709
2014
Q2 		$6.83M Buy
+150,000
New +$6.59M 0.02% 578
2013
Q3 		– Sell
-152,000
Closed -$5.03M – 677
2013
Q2 		$5.03M Buy
+152,000
New +$4.93M 0.02% 591

Other funds holding ACHC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
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
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
DM
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

Adage Capital Partners's ACHC Position: Q2 2026 in Review

Adage Capital Partners opened a new position in Acadia Healthcare (ACHC) in Q2 2026: 230,140 shares worth $6.8M. The stake represents 0.01% of the portfolio and ranks #780 among its holdings. This is a return to the name: Adage Capital Partners previously reported a position in ACHC as recently as Q3 2025.

Adage Capital Partners first reported a position in ACHC in Q2 2013 and has held it in 22 quarters since. The position peaked at $32.7M in Q2 2017. 313 funds tracked by Wall St. Rank hold ACHC as of Q2 2026.

  • Adage Capital Partners held 230,140 shares of Acadia Healthcare worth $6.8M as of Q2 2026.
  • Acadia Healthcare was a new Adage Capital Partners position in Q2 2026.
  • Acadia Healthcare made up 0.01% of Adage Capital Partners's portfolio in Q2 2026, its #780 holding.
  • Adage Capital Partners first reported a position in Acadia Healthcare in Q2 2013 and has held it in 22 quarters since.
  • Adage Capital Partners's Acadia Healthcare position peaked at $32.7M in Q2 2017.
  • 313 funds tracked by Wall St. Rank held Acadia Healthcare as of Q2 2026.

Based on Adage Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.