Notify me when Flagship Pioneering, LLC files a new 13F portfolio report.
⭐ Subscribe ⭐| Quarter | Holdings | Value $ | Bought | Sold | Net | Top Holdings | Form Type | Filing Time |
|---|---|---|---|---|---|---|---|---|
| Q4 2025 | 4 | $324,036,288 | $0 | $0 | $0 | MRNA, SANA, FHTX, MCRB | 13F-HR | 17 Feb 2026, 16:00 |
| Q3 2025 | 4 | $292,619,998 | $0 | $0 | $0 | MRNA, SANA, FHTX, MCRB | 13F-HR | 14 Nov 2025, 16:01 |
| Q2 2025 | 4 | $268,465,915 | +$12,841,492 | -$16,184,242 | -$3,342,750 | MRNA, SANA, FHTX, MCRB | 13F-HR | 14 Aug 2025, 16:00 |
| Q1 2025 | 4 | $235,769,323 | $0 | -$21,790,591 | -$21,790,591 | MRNA, FHTX, SANA, MCRB | 13F-HR | 15 May 2025, 16:14 |
| Q4 2024 | 5 | $334,222,212 | $0 | -$2,781,776 | -$2,781,776 | MRNA, FHTX, SANA, OMGA, MCRB | 13F-HR | 14 Feb 2025, 16:00 |
| Q3 2024 | 6 | $591,878,313 | $0 | $0 | $0 | MRNA, FHTX, SANA, OMGA, MCRB | 13F-HR | 14 Nov 2024, 16:00 |
| Q2 2024 | 6 | $843,359,347 | $0 | -$625,774,187 | -$625,774,187 | MRNA, SANA, FHTX, OMGA, MCRB | 13F-HR | 14 Aug 2024, 16:00 |
| Q1 2024 | 7 | $1,524,565,144 | +$5 | -$19,605,875 | -$19,605,870 | MRNA, SANA, OMGA, FHTX, DNLI | 13F-HR | 15 May 2024, 16:00 |
| Q4 2023 | 7 | $1,325,311,872 | +$2,337,000 | -$49,749,301 | -$47,412,301 | MRNA, SANA, OMGA, FHTX, DNLI | 13F-HR | 14 Feb 2024, 16:00 |
| Q3 2023 | 9 | $1,377,673,352 | +$33,427,535 | -$389,084,099 | -$355,656,564 | MRNA, SANA, FHTX, OMGA, MCRB | 13F-HR | 14 Nov 2023, 16:00 |
| Q2 2023 | 10 | $2,240,750,098 | +$26,151,130 | -$25,031,580 | +$1,119,550 | MRNA, SANA, OMGA, MCRB, FHTX | 13F-HR | 14 Aug 2023, 16:00 |
| Q1 2023 | 11 | $2,573,424,927 | $0 | -$6,546,109 | -$6,546,109 | MRNA, OMGA, MCRB, SANA, FHTX | 13F-HR | 15 May 2023, 16:00 |
| Q4 2022 | 12 | $2,838,811,542 | +$3,322,803 | $0 | +$3,322,803 | MRNA, SANA, MCRB, EVLO, FHTX | 13F-HR | 14 Feb 2023, 13:00 |
| Q3 2022 | 12 | $2,375,805,000 | +$63,227,438 | -$2,821,000 | +$60,406,438 | MRNA, SANA, MCRB, OMGA, FHTX | 13F-HR | 14 Nov 2022, 16:00 |
| Q2 2022 | 12 | $2,654,624,000 | +$57,807,857 | -$702,877,176 | -$645,069,319 | MRNA, SANA, FHTX, EVLO, OMGA | 13F-HR | 15 Aug 2022, 16:02 |
| Q1 2022 | 13 | $4,258,761,000 | +$16,240,714 | $0 | +$16,240,714 | MRNA, SANA, RUBY, FHTX, OMGA | 13F-HR | 16 May 2022, 15:01 |
| Q4 2021 | 13 | $6,467,997,000 | $0 | $0 | $0 | MRNA, SANA, RUBY, OMGA, FHTX | 13F-HR | 14 Feb 2022, 15:01 |
| Q3 2021 | 13 | $0 | $0 | $0 | $0 | 13F-HR | 15 Nov 2021, 16:01 | |
| Q2 2021 | 12 | $0 | $0 | $0 | $0 | 13F-HR | 16 Aug 2021, 08:59 | |
| Q1 2021 | 12 | $0 | $0 | $0 | $0 | 13F-HR | 17 May 2021, 16:30 | |
| Q4 2020 | 11 | $0 | $0 | $0 | $0 | 13F-HR | 16 Feb 2021, 17:10 | |
| Q3 2020 | 8 | $3,619,952,000 | $0 | -$708,410,256 | -$708,410,256 | MRNA, MCRB, KLDO, DNLI, RUBY | 13F-HR | 16 Nov 2020, 16:00 |
| Q2 2020 | 8 | $3,297,735,000 | +$43,880,676 | -$706,310,122 | -$662,429,446 | MRNA, RUBY, DNLI, EVLO, MCRB | 13F-HR | 13 Aug 2020, 16:01 |
| Q1 2020 | 8 | $2,133,438,000 | $0 | $0 | $0 | MRNA, RUBY, DNLI, KLDO, MCRB | 13F-HR | 14 May 2020, 16:16 |
| Q4 2019 | 8 | $1,788,867,000 | +$339,461,821 | -$60,537,931 | +$278,923,890 | MRNA, RUBY, DNLI, KLDO, MCRB | 13F-HR | 13 Feb 2020, 16:17 |
| Q3 2019 | 10 | $611,338,000 | $0 | $0 | $0 | KLDO, DNLI, EVLO, MCRB, TMDX | 13F-HR | 14 Nov 2019, 16:15 |
| Q2 2019 | 10 | $0 | $0 | $0 | $0 | 13F-HR | 13 Aug 2019, 16:15 | |
| Q1 2019 | 8 | $0 | $0 | $0 | $0 | 13F-HR | 14 May 2019, 16:10 | |
| Q4 2018 | 7 | $2,047,628,000 | +$897,989,000 | $0 | +$897,989,000 | MRNA, RUBY, EVLO, DNLI, MCRB | 13F-HR | 12 Feb 2019, 18:44 |
| Q3 2018 | 6 | $0 | $0 | $0 | $0 | 13F-HR | 13 Nov 2018, 10:14 | |
| Q2 2018 | 5 | $0 | $0 | $0 | $0 | 13F-HR | 07 Aug 2018, 16:26 | |
| Q1 2018 | 4 | $344,896,000 | $0 | -$51,455,000 | -$51,455,000 | DNLI, MCRB, SYRS, QTRX | 13F-HR | 15 May 2018, 16:05 |
| Q4 2017 | 5 | $394,322,000 | +$183,084,000 | -$8,193 | +$183,075,807 | DNLI, MCRB, EDIT, QTRX, SYRS | 13F-HR | 13 Feb 2018, 18:34 |
| Q3 2017 | 4 | $8,193 | $0 | $0 | $0 | TTOO | 13F-HR | 03 Nov 2017, 10:23 |
| Q2 2017 | 4 | $6,261 | $0 | $0 | $0 | TTOO | 13F-HR | 02 Aug 2017, 15:46 |
| Q1 2017 | 7 | $376,254,000 | $0 | -$1,766,216 | -$1,766,216 | MCRB, SYRS, EDIT, AGIO, RNAC | 13F-HR | 10 May 2017, 16:28 |
| Q4 2016 | 7 | $307,344,000 | $0 | -$17,304,350 | -$17,304,350 | MCRB, SYRS, EDIT, AGIO, RNAC | 13F-HR | 13 Feb 2017, 14:28 |
| Q3 2016 | 7 | $365,999,000 | $0 | $0 | $0 | MCRB, SYRS, AGIO, EDIT, RNAC | 13F-HR | 14 Nov 2016, 09:53 |