CI Investments Inc’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $748K | Sell |
4,078
-319
| -7% | -$58.8K | ﹤0.01% | 449 |
|
|
2025
Q4 | $774K | Sell |
4,397
-285
| -6% | -$46.6K | ﹤0.01% | 456 |
|
|
2025
Q3 | $656K | Sell |
4,682
-289
| -6% | -$39.1K | ﹤0.01% | 478 |
|
|
2025
Q2 | $624K | Sell |
4,971
-1,641
| -25% | -$204K | ﹤0.01% | 487 |
|
|
2025
Q1 | $905K | Sell |
6,612
-544
| -8% | -$77.8K | ﹤0.01% | 447 |
|
|
2024
Q4 | $1.09M | Buy |
7,156
+1,302
| +22% | +$220K | ﹤0.01% | 409 |
|
|
2024
Q3 | $1.14M | Sell |
5,854
-389
| -6% | -$81.4K | ﹤0.01% | 397 |
|
|
2024
Q2 | $1.45M | Sell |
6,243
-1,251
| -17% | -$272K | 0.01% | 362 |
|
|
2024
Q1 | $1.62M | Buy |
7,494
+2,152
| +40% | +$504K | 0.01% | 354 |
|
|
2023
Q4 | $1.38M | Sell |
5,342
-290
| -5% | -$71.2K | 0.01% | 351 |
|
|
2023
Q3 | $1.45M | Buy |
5,632
+417
| +8% | +$112K | 0.01% | 345 |
|
|
2023
Q2 | $1.49M | Buy |
5,215
+1,385
| +36% | +$412K | 0.01% | 347 |
|
|
2023
Q1 | $1.06M | Buy |
3,830
+1,007
| +36% | +$279K | 0.01% | 367 |
|
|
2022
Q4 | $782K | Buy |
2,823
+190
| +7% | +$53.7K | ﹤0.01% | 392 |
|
|
2022
Q3 | $703K | Buy |
2,633
+146
| +6% | +$31K | ﹤0.01% | 395 |
|
|
2022
Q2 | $507K | Sell |
2,487
-1,546
| -38% | -$316K | ﹤0.01% | 471 |
|
|
2022
Q1 | $849K | Buy |
4,033
+653
| +19% | +$142K | ﹤0.01% | 456 |
|
|
2021
Q4 | $811K | Buy |
3,380
+95
| +3% | +$24.4K | ﹤0.01% | 500 |
|
|
2021
Q3 | $930K | Buy |
3,285
+843
| +35% | +$276K | ﹤0.01% | 466 |
|
|
2021
Q2 | $846K | Sell |
2,442
-2,127
| -47% | -$644K | ﹤0.01% | 494 |
|
|
2021
Q1 | $1.28M | Buy |
4,569
+2,017
| +79% | +$544K | 0.01% | 373 |
|
|
2020
Q4 | $625K | Buy |
2,552
+875
| +52% | +$226K | ﹤0.01% | 446 |
|
|
2020
Q3 | $476K | Buy |
1,677
+331
| +25% | +$92.3K | ﹤0.01% | 415 |
|
|
2020
Q2 | $360K | Buy |
1,346
+179
| +15% | +$53.8K | ﹤0.01% | 435 |
|
|
2020
Q1 | $369K | Buy |
1,167
+366
| +46% | +$111K | ﹤0.01% | 428 |
|
|
2019
Q4 | $238K | Buy |
801
+712
| +800% | +$198K | ﹤0.01% | 549 |
|
|
2019
Q3 | $21K | Buy |
+89
| New | +$20.7K | ﹤0.01% | 575 |
|
|
2018
Q4 | – | Sell |
-8,541
| Closed | -$3.02M | – | 345 |
|
|
2018
Q3 | $3.02M | Buy |
+8,541
| New | +$2.94M | 0.02% | 230 |
|
|
2016
Q1 | – | Sell |
-61,500
| Closed | -$18.8M | – | 190 |
|
|
2015
Q4 | $18.8M | Sell |
61,500
-300
| -0.5% | -$86.2K | 0.24% | 84 |
|
|
2015
Q3 | $18M | Sell |
61,800
-26,800
| -30% | -$8.85M | 0.23% | 89 |
|
|
2015
Q2 | $35.8M | Buy |
88,600
+44,000
| +99% | +$17.7M | 0.4% | 69 |
|
|
2015
Q1 | $18.8M | Buy |
+44,600
| New | +$17.6M | 0.2% | 90 |
|
Other funds holding BIIB
VCM
VPM
CI Investments Inc's BIIB Position: Q1 2026 in Review
CI Investments Inc reduced its Biogen (BIIB) stake by 7.3% in Q1 2026, selling an estimated $58.8K and leaving 4,078 shares worth $748K. The position accounts for ﹤0.01% of the portfolio, ranked #449.
CI Investments Inc first reported a position in BIIB in Q1 2015 and has held it in 32 quarters since. The position peaked at $35.8M in Q2 2015. 1,008 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- CI Investments Inc held 4,078 shares of Biogen worth $748K as of Q1 2026.
- CI Investments Inc sold 319 Biogen shares in Q1 2026, an estimated $58.8K.
- Biogen made up ﹤0.01% of CI Investments Inc's portfolio in Q1 2026, its #449 holding.
- CI Investments Inc first reported a position in Biogen in Q1 2015 and has held it in 32 quarters since.
- CI Investments Inc's Biogen position peaked at $35.8M in Q2 2015.
- 1,008 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on CI Investments Inc's 13F filing for Q1 2026, filed 13 May 2026.