Natixis’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 | $4.14M | Sell |
22,585
-6,519
| -22% | -$1.2M | 0.01% | 466 |
|
|
2025
Q4 | $5.12M | Buy |
29,104
+5,068
| +21% | +$828K | 0.02% | 458 |
|
|
2025
Q3 | $3.37M | Sell |
24,036
-10,745
| -31% | -$1.45M | 0.02% | 502 |
|
|
2025
Q2 | $4.37M | Buy |
34,781
+4,876
| +16% | +$608K | 0.02% | 369 |
|
|
2025
Q1 | $4.08M | Buy |
29,905
+1,513
| +5% | +$216K | 0.02% | 340 |
|
|
2024
Q4 | $4.34M | Sell |
28,392
-88,057
| -76% | -$14.9M | 0.03% | 362 |
|
|
2024
Q3 | $22.6M | Buy |
116,449
+8,968
| +8% | +$1.88M | 0.13% | 117 |
|
|
2024
Q2 | $24.9M | Buy |
107,481
+5,743
| +6% | +$1.25M | 0.14% | 118 |
|
|
2024
Q1 | $21.9M | Buy |
101,738
+34,665
| +52% | +$8.12M | 0.11% | 143 |
|
|
2023
Q4 | $17.4M | Buy |
67,073
+45,538
| +211% | +$11.2M | 0.13% | 152 |
|
|
2023
Q3 | $5.53M | Sell |
21,535
-10,402
| -33% | -$2.78M | 0.04% | 278 |
|
|
2023
Q2 | $9.1M | Buy |
31,937
+15,668
| +96% | +$4.66M | 0.07% | 204 |
|
|
2023
Q1 | $4.52M | Sell |
16,269
-128,995
| -89% | -$35.7M | 0.04% | 287 |
|
|
2022
Q4 | $40.2M | Buy |
145,264
+53,173
| +58% | +$15M | 0.23% | 110 |
|
|
2022
Q3 | $24.6M | Sell |
92,091
-44,500
| -33% | -$9.45M | 0.12% | 138 |
|
|
2022
Q2 | $28M | Buy |
136,591
+43,324
| +46% | +$8.86M | 0.1% | 127 |
|
|
2022
Q1 | $19.6M | Sell |
93,267
-122,407
| -57% | -$26.6M | 0.07% | 264 |
|
|
2021
Q4 | $51.7M | Buy |
215,674
+127,089
| +143% | +$32.7M | 0.18% | 102 |
|
|
2021
Q3 | $25.1M | Sell |
88,585
-18,719
| -17% | -$6.14M | 0.09% | 198 |
|
|
2021
Q2 | $37.2M | Buy |
107,304
+63,990
| +148% | +$19.4M | 0.16% | 130 |
|
|
2021
Q1 | $12.1M | Sell |
43,314
-43,223
| -50% | -$11.7M | 0.04% | 344 |
|
|
2020
Q4 | $21.2M | Buy |
86,537
+69,604
| +411% | +$18M | 0.08% | 246 |
|
|
2020
Q3 | $4.8M | Sell |
16,933
-15,542
| -48% | -$4.33M | 0.04% | 288 |
|
|
2020
Q2 | $8.69M | Sell |
32,475
-40,786
| -56% | -$12.3M | 0.07% | 207 |
|
|
2020
Q1 | $23.2M | Sell |
73,261
-110,302
| -60% | -$33.5M | 0.18% | 116 |
|
|
2019
Q4 | $54.3M | Buy |
183,563
+23,753
| +15% | +$6.59M | 0.34% | 82 |
|
|
2019
Q3 | $37.2M | Buy |
159,810
+17,170
| +12% | +$4M | 0.24% | 98 |
|
|
2019
Q2 | $33.4M | Sell |
142,640
-129,334
| -48% | -$29.9M | 0.26% | 84 |
|
|
2019
Q1 | $63.3M | Buy |
271,974
+236,794
| +673% | +$74.6M | 0.4% | 52 |
|
|
2018
Q4 | $10.6M | Sell |
35,180
-61,881
| -64% | -$19.7M | 0.09% | 213 |
|
|
2018
Q3 | $34.3M | Sell |
97,061
-43,684
| -31% | -$15M | 0.2% | 118 |
|
|
2018
Q2 | $40.9M | Buy |
140,745
+9,687
| +7% | +$2.72M | 0.22% | 108 |
|
|
2018
Q1 | $35.9M | Buy |
131,058
+32,188
| +33% | +$9.99M | 0.22% | 106 |
|
|
2017
Q4 | $31.5M | Buy |
98,870
+26,826
| +37% | +$8.61M | 0.24% | 111 |
|
|
2017
Q3 | $22.6M | Sell |
72,044
-149,194
| -67% | -$44.2M | 0.21% | 119 |
|
|
2017
Q2 | $60M | Buy |
221,238
+19,762
| +10% | +$5.23M | 0.68% | 40 |
|
|
2017
Q1 | $55.1M | Buy |
201,476
+14,130
| +8% | +$4M | 0.69% | 37 |
|
|
2016
Q4 | $53.1M | Buy |
+187,346
| New | +$55.5M | 0.55% | 42 |
|
|
2016
Q3 | – | Sell |
-126,274
| Closed | -$30.5M | – | 524 |
|
|
2016
Q2 | $30.5M | Buy |
126,274
+914
| +0.7% | +$241K | 0.57% | 43 |
|
|
2016
Q1 | $32.6M | Sell |
125,360
-24,675
| -16% | -$6.52M | 0.55% | 46 |
|
|
2015
Q4 | $46M | Buy |
+150,035
| New | +$43.1M | 0.77% | 23 |
|
|
2015
Q3 | – | Sell |
-779
| Closed | -$315K | – | 315 |
|
|
2015
Q2 | $315K | Sell |
779
-30,544
| -98% | -$12.3M | ﹤0.01% | 302 |
|
|
2015
Q1 | $13.2M | Buy |
+31,323
| New | +$12.3M | 0.18% | 81 |
|
|
2014
Q4 | – | Sell |
-3,133
| Closed | -$1.04M | – | 386 |
|
|
2014
Q3 | $1.04M | Sell |
3,133
-32,960
| -91% | -$10.9M | 0.02% | 255 |
|
|
2014
Q2 | $11.4M | Sell |
36,093
-22,169
| -38% | -$6.67M | 0.14% | 132 |
|
|
2014
Q1 | $17.8M | Sell |
58,262
-142,402
| -71% | -$45.2M | 0.23% | 100 |
|
|
2013
Q4 | $56.1M | Sell |
200,664
-20,236
| -9% | -$5.23M | 0.48% | 46 |
|
|
2013
Q3 | $53.2M | Buy |
220,900
+112,000
| +103% | +$25.1M | 0.57% | 47 |
|
|
2013
Q2 | $23.4M | Buy |
+108,900
| New | +$23.3M | 0.33% | 74 |
|
Other funds holding BIIB
VCM
VPM
Natixis's BIIB Position: Q1 2026 in Review
Natixis reduced its Biogen (BIIB) stake by 22% in Q1 2026, selling an estimated $1.2M and leaving 22,585 shares worth $4.14M. The position accounts for 0.01% of the portfolio, ranked #466.
Natixis first reported a position in BIIB in Q2 2013 and has held it in 49 quarters since. The position peaked at $63.3M in Q1 2019. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Natixis held 22,585 shares of Biogen worth $4.14M as of Q1 2026.
- Natixis sold 6,519 Biogen shares in Q1 2026, an estimated $1.2M.
- Biogen made up 0.01% of Natixis's portfolio in Q1 2026, its #466 holding.
- Natixis first reported a position in Biogen in Q2 2013 and has held it in 49 quarters since.
- Natixis's Biogen position peaked at $63.3M in Q1 2019.
- 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Natixis's 13F filing for Q1 2026, filed 14 May 2026.