Allakos Inc.
Allakos Inc. (ALLK) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ALLK · as of Mar 31, 2025
Ownership Breakdown
65
Institutional Holders
▼ 15 vs Q4
$15.36M
Total Inst. Value
▼ $74.59M vs Q4
90.38M
Shares Outstanding
freeFloat 63.89%
61.94M
13F Shares Held
▼ 12.40M 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
ALLK largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BVF INC/IL pharmaceutical preparations | 16.55M | 18.41% | 18.41% | $3.77B | May 15, 2025 | — held |
TANG CAPITAL MANAGEMENT LLC pharmaceutical preparations | 8.69M | 9.67% | 9.67% | $1.98B | May 15, 2025 | ▲ 8.32M |
DEEP TRACK CAPITAL, LP pharmaceutical preparations | 7.23M | 8.05% | 8.05% | $1.65B | May 15, 2025 | ▲ 1.53M |
NEA MANAGEMENT COMPANY, LLC pharmaceutical preparations | 6.15M | 6.84% | 6.84% | $1.40B | May 14, 2025 | — held |
VANGUARD GROUP INC pharmaceutical preparations | 3.43M | 3.81% | 3.81% | $781.62M | May 9, 2025 | — held |
ACADIAN ASSET MANAGEMENT LLC pharmaceutical preparations | 2.94M | 3.27% | 3.27% | $668.00M | May 21, 2025 | ▲ 695.8K |
LOGOS GLOBAL MANAGEMENT LP pharmaceutical preparations | 2.90M | 3.23% | 3.23% | $660.04M | May 15, 2025 | — held |
ALTA PARTNERS MANAGEMENT COMPANY, L.P. pharmaceutical preparations | 2.55M | 2.83% | 2.83% | $579.50M | May 12, 2025 | — held |
BLACKROCK, INC. pharmaceutical preparations | 1.27M | 1.41% | 1.41% | $288.80M | May 2, 2025 | ▼ 171.4K |
IKARIAN CAPITAL, LLC pharmaceutical preparations | 1.17M | 1.30% | 1.30% | $266.74M | May 15, 2025 | ▲ 200.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
14
Increased
+11.16M shares8
New Positions
first time holders15
Decreased
−10.79M shares0
Sold Out
fully exitedNet shares change (top 50)
+368.8K
+11.16M / −10.79M
Net new holders
+7
8 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
ALLK insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
47
Sell transactions
0.00
Buy/Sell ratio
$12M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BVF PARTNERS L P/IL 10 percent owner | May 15, 2025 | D-Return | 855,211 | $0.33 | $282.2K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 3,386,400 | $0.33 | $1.12M | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 37,600 | $16.00 | $601.6K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 16,000 | $40.00 | $640.0K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 7,700 | $72.54 | $558.6K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 7,700 | $99.83 | $768.7K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 99,590 | $2.62 | $260.9K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 86,762 | $4.81 | $417.3K | 0 | Form 4 ↗ |
Walker Paul Edward director | May 15, 2025 | D-Return | 41,000 | $1.42 | $58.2K | 0 | Form 4 ↗ |
Tomasi Adam President | May 15, 2025 | D-Return | 1,200,000 | $1.25 | $1.50M | 0 | 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
Allakos Inc. (ALLK) is primarily owned by institutional investors, who hold approximately 68.5% of total shares outstanding. Company insiders own approximately 36.11%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Allakos Inc. is BVF INC/IL, holding approximately 16.55 million shares — equal to 18.41% of outstanding shares — as of March 31, 2025.
A total of 65 institutional investors currently hold ALLK stock, with a combined institutional value of approximately $15,361,391 as of the most recent 13F filing period.
Frequently asked questions
ALLK ownershipAllakos Inc. (ALLK) is primarily owned by institutional investors, who hold approximately 68.5% of shares. The largest shareholder is BVF INC/IL with a 18.41% stake. Company insiders hold 36.11%. Data sourced from SEC Form 13F as of March 31, 2025.