Bank of Montreal
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Bank of Montreal’s Amphastar Pharmaceuticals AMPH Stock Holding History

Bank of Montreal’s Portfolio AMPH Stock Details AMPH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-8,968
Closed -$239K – 3597
2025
Q3 		$239K Sell
8,968
-2,822
-24% -$72.9K ﹤0.01% 2669
2025
Q2 		$271K Buy
11,790
+3,584
+44% +$88.9K ﹤0.01% 2630
2025
Q1 		$238K Sell
8,206
-9
-0.1% -$287 ﹤0.01% 2637
2024
Q4 		$305K Buy
8,215
+361
+5% +$16.5K ﹤0.01% 2539
2024
Q3 		$377K Buy
7,854
+200
+3% +$8.78K ﹤0.01% 2605
2024
Q2 		$316K Buy
7,654
+8
+0.1% +$332 ﹤0.01% 2701
2024
Q1 		$340K Buy
7,646
+200
+3% +$10.3K ﹤0.01% 2706
2023
Q4 		$467K Sell
7,446
-546
-7% -$28.7K ﹤0.01% 2550
2023
Q3 		$374K Sell
7,992
-544
-6% -$29.7K ﹤0.01% 2646
2023
Q2 		$494K Sell
8,536
-202
-2% -$8.96K ﹤0.01% 2609
2023
Q1 		$334K Buy
8,738
+1,324
+18% +$43.4K ﹤0.01% 2723
2022
Q4 		$213K Buy
7,414
+598
+9% +$17.4K ﹤0.01% 3122
2022
Q3 		$222 Buy
6,816
+321
+5% +$10.5K ﹤0.01% 3142
2022
Q2 		$223 Sell
6,495
-6,534
-50% -$233K ﹤0.01% 3202
2022
Q1 		$477K Buy
13,029
+371
+3% +$10.5K ﹤0.01% 2888
2021
Q4 		$298K Sell
12,658
-1,659
-12% -$33.9K ﹤0.01% 2728
2021
Q3 		$279K Sell
14,317
-1,551
-10% -$30.4K ﹤0.01% 3172
2021
Q2 		$331K Buy
15,868
+4,299
+37% +$81K ﹤0.01% 3023
2021
Q1 		$205K Buy
11,569
+437
+4% +$8.13K ﹤0.01% 3108
2020
Q4 		$217K Sell
11,132
-121,463
-92% -$2.36M ﹤0.01% 3183
2020
Q3 		$2.68M Sell
132,595
-4,407
-3% -$88.7K ﹤0.01% 1547
2020
Q2 		$2.85M Buy
137,002
+20,270
+17% +$371K ﹤0.01% 1454
2020
Q1 		$1.72M Sell
116,732
-5,342
-4% -$92.9K ﹤0.01% 1489
2019
Q4 		$2.35M Buy
122,074
+64,374
+112% +$1.23M ﹤0.01% 1788
2019
Q3 		$1.14M Buy
57,700
+52,777
+1,072% +$1.1M ﹤0.01% 2004
2019
Q2 		$104K Buy
4,923
+2,789
+131% +$58.3K ﹤0.01% 3311
2019
Q1 		$43K Sell
2,134
-311
-13% -$6.97K ﹤0.01% 3391
2018
Q4 		$49K Buy
2,445
+261
+12% +$5.14K ﹤0.01% 3276
2018
Q3 		$42K Sell
2,184
-7
-0.3% -$125 ﹤0.01% 3461
2018
Q2 		$33K Buy
2,191
+324
+17% +$5.66K ﹤0.01% 3574
2018
Q1 		$35K Sell
1,867
-3,000
-62% -$56.4K ﹤0.01% 3368
2017
Q4 		$93K Sell
4,867
-64,782
-93% -$1.21M ﹤0.01% 3026
2017
Q3 		$1.25M Hold
69,649
– – ﹤0.01% 1875
2017
Q2 		$1.24M Buy
69,649
+63,501
+1,033% +$1.01M ﹤0.01% 1881
2017
Q1 		$89K Sell
6,148
-176,157
-97% -$2.77M ﹤0.01% 2868
2016
Q4 		$3.7M Buy
182,305
+99,185
+119% +$1.93M ﹤0.01% 1208
2016
Q3 		$1.58M Buy
83,120
+65,000
+359% +$1.18M ﹤0.01% 1614
2016
Q2 		$292K Buy
18,120
+12,164
+204% +$172K ﹤0.01% 2294
2016
Q1 		$71K Buy
5,956
+1,256
+27% +$14.8K ﹤0.01% 2920
2015
Q4 		$67K Sell
4,700
-16,472
-78% -$218K ﹤0.01% 2923
2015
Q3 		$248K Buy
21,172
+3,880
+22% +$58.2K ﹤0.01% 2155
2015
Q2 		$304K Buy
17,292
+6,406
+59% +$99.8K ﹤0.01% 2222
2015
Q1 		$163K Buy
10,886
+8,886
+444% +$119K ﹤0.01% 2438
2014
Q4 		$23K Hold
2,000
– – ﹤0.01% 3315
2014
Q3 		$23K Buy
+2,000
New +$20.8K ﹤0.01% 3411

Other funds holding AMPH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
EIP
Epoch Investment Partners New York $16.5B AUM 24.3% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Bank of Montreal's AMPH Position: Q4 2025 in Review

Bank of Montreal sold out of Amphastar Pharmaceuticals (AMPH) in Q4 2025, closing a stake of 8,968 shares — an estimated $239K sold.

Bank of Montreal first reported a position in AMPH in Q3 2014 and held it in 45 quarters. The position peaked at $3.7M in Q4 2016. 235 funds tracked by Wall St. Rank hold AMPH as of Q4 2025.

  • Bank of Montreal reported no remaining Amphastar Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Bank of Montreal sold 8,968 Amphastar Pharmaceuticals shares in Q4 2025, an estimated $239K.
  • Bank of Montreal first reported a position in Amphastar Pharmaceuticals in Q3 2014 and held it in 45 quarters.
  • Bank of Montreal's Amphastar Pharmaceuticals position peaked at $3.7M in Q4 2016.
  • 235 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q4 2025.

Based on Bank of Montreal's 13F filing for Q4 2025, filed 12 Feb 2026.