Selecta Biosciences, Inc.
Selecta Biosciences, Inc. (SELB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SELB · as of Mar 31, 2024
Ownership Breakdown
64
Institutional Holders
▼ 17 vs Q4
$58.28M
Total Inst. Value
▲ $20.51M vs Q4
153.43M
Shares Outstanding
freeFloat 61.26%
54.67M
13F Shares Held
▼ 112,805 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SELB largest shareholders · institutional ownership
Q1 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC pharmaceutical preparations | 14.37M | 0.93% | 0.93% | $9.34B | May 13, 2024 | ▲ 6.64M |
ARTAL GROUP S.A. pharmaceutical preparations | 9.14M | 0.59% | 0.59% | $5.94B | May 17, 2024 | — held |
BLACKROCK INC. pharmaceutical preparations | 7.25M | 0.47% | 0.47% | $4.72B | May 10, 2024 | ▼ 264.0K |
VANGUARD GROUP INC pharmaceutical preparations | 6.32M | 0.41% | 0.41% | $4.10B | May 10, 2024 | ▼ 928.9K |
ERSTE ASSET MANAGEMENT GMBH pharmaceutical preparations | 3.21M | 0.21% | 0.21% | $2.09B | Nov 26, 2024 | ▲ 85.1K |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 2.50M | 0.16% | 0.16% | $1.65B | May 13, 2024 | ▲ 60.8K |
STATE STREET CORP pharmaceutical preparations | 2.09M | 0.13% | 0.13% | $1.36B | May 15, 2024 | ▼ 115.0K |
JPMORGAN CHASE & CO pharmaceutical preparations | 1.43M | 0.09% | 0.09% | $926.35M | Dec 26, 2024 | ▼ 55.7K |
GOLDMAN SACHS GROUP INC pharmaceutical preparations | 1.18M | 0.08% | 0.08% | $23.01B | May 15, 2024 | ▼ 307.0K |
MILLENNIUM MANAGEMENT LLC pharmaceutical preparations | 994.6K | 0.06% | 0.06% | $646.51M | May 15, 2024 | ▲ 778.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2024 vs prior quarter
Q1 2024
15
Increased
+7.96M shares0
New Positions
first time holders23
Decreased
−4.01M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.96M
+7.96M / −4.01M
Net new holders
-8
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SELB insider trading · insider activity
Source: SEC Form 4
26
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Singer Michael
| Jan 2, 2024 | Award | 178,000 | — | — | 288.1K | Form 4 ↗ |
Singer Michael
| Jan 2, 2024 | Award | 228,000 | $0.66 | $149.4K | 228.0K | Form 4 ↗ |
Singer Michael
| Dec 22, 2023 | Gift | 3,000 | — | — | 3.3K | Form 4 ↗ |
Davis Blaine Chief Financial Officer | Jan 2, 2024 | Award | 3,110,000 | $0.66 | $2.04M | 3.11M | Form 4 ↗ |
Davis Blaine Chief Financial Officer | Jan 2, 2024 | Award | 2,424,000 | — | — | 2.42M | Form 4 ↗ |
Jewell Christopher M Chief Scientific Officer | Jan 2, 2024 | Award | 998,000 | $0.66 | $653.9K | 998.0K | Form 4 ↗ |
Jewell Christopher M Chief Scientific Officer | Jan 2, 2024 | Award | 778,200 | — | — | 778.2K | Form 4 ↗ |
Brunn Carsten President and CEO | Jan 2, 2024 | Award | 5,971,000 | $0.66 | $3.91M | 5.97M | Form 4 ↗ |
Brunn Carsten President and CEO | Jan 2, 2024 | Award | 4,654,100 | — | — | 4.92M | Form 4 ↗ |
Sallin Aymeric director | Jan 2, 2024 | Award | 228,000 | $0.66 | $149.4K | 228.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Selecta Biosciences, Inc. (SELB) is primarily owned by institutional investors, who hold approximately 35.6% of total shares outstanding. Company insiders own approximately 38.74%, while retail and public investors account for the remaining 25.63%.
The largest institutional shareholder of Selecta Biosciences, Inc. is FMR LLC, holding approximately 14.37 million shares — equal to 0.93% of outstanding shares — as of March 31, 2024.
A total of 64 institutional investors currently hold SELB stock, with a combined institutional value of approximately $58,280,851 as of the most recent 13F filing period.
Frequently asked questions
SELB ownershipSelecta Biosciences, Inc. (SELB) is primarily owned by institutional investors, who hold approximately 35.6% of shares. The largest shareholder is FMR LLC with a 0.93% stake. Company insiders hold 38.74%. Data sourced from SEC Form 13F as of March 31, 2024.