SEC ownership of Allakos Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001564824.

Holder evidence

11

Lead holder

TANG CAPITAL MANAGEMENT LLC

13D/G signal

TANG CAPITAL MANAGEMENT LLC

Latest evidence

15 May 2025

Issuer identity
CIK
0001564824
Location
San Diego, CA
Ownership snapshot
Latest large-stake holder
TANG CAPITAL MANAGEMENT LLC
Latest evidence date
15 May 2025

Ownership snapshot

Top shareholders of Allakos Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
TANG CAPITAL MANAGEMENT LLC
13D/G signal
TANG CAPITAL MANAGEMENT LLC
Evidence rows
11
Latest as of
15 May 2025
13D/G 3/4/5 Lead comparable stake: 100% 13D/G row: TANG CAPITAL MANAGEMENT LLC Showing 1-8 of 11 holder rows.

Rank 2 holder

FMR LLC

13D/G
Ownership
0.3%
Position
$86.8K
Holder Evidence Ownership % Position 12M Net Δ As of
TANG CAPITAL MANAGEMENT LLC
13D/G
100%
$3,200
10,000 shares
-$2,778,780 15 May 2025
FMR LLC
13D/G
0.3%
$86,820
271,314 shares
$0 31 Mar 2025
Craig A. Paterson
3/4/5
Chief Medical Officer
class O/S missing
$808,680
323,472 shares
04 Dec 2023
Mark Asbury
3/4/5
CLO, GC and Secretary
class O/S missing
$567,338
226,935 shares
02 Mar 2022
Margaret Nell Fitzgerald
3/4/5
General Counsel and Secretary
class O/S missing
$382,820
153,128 shares
02 Sep 2022
Chin Hyok Lee
3/4/5
Chief Medical Officer
mixed-class rows
$310,802
775,046 shares
mixed-class rows
04 Dec 2024
Henrik S. Rasmussen MD
3/4/5
Chief Medical Officer
class O/S missing
$252,463
100,985 shares
03 Jun 2021
Everett Rand Sutherland
3/4/5
Director
class O/S missing
154,786 shares
01 Aug 2023
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 31 May 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 20 reporting-owner rows connected to Allakos Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
20
Lead holder
Craig A. Paterson
Net 12M change
$0
Latest report
15 May 2025
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Craig A. Paterson Chief Medical Officer $808,680 Mixed 04 Dec 2023
Mark Asbury CLO, GC and Secretary $567,338 Mixed 02 Mar 2022
Margaret Nell Fitzgerald General Counsel and Secretary $382,820 Mixed 02 Sep 2022
Chin Hyok Lee Chief Medical Officer $310,802 Mixed 04 Dec 2024
Henrik S. Rasmussen MD Chief Medical Officer $252,463 Mixed 03 Jun 2021
H. Baird Radford III Chief Financial Officer $0 Mixed 15 May 2025
BVF PARTNERS L P/IL 10%+ Owner $0 Mixed 15 May 2025
Paul Edward Walker Director $0 Mixed 15 May 2025
Adam Tomasi President $0 Mixed 15 May 2025
Robert Alexander Chief Executive Officer, Director $0 Mixed 15 May 2025
Steven P. James Director Mixed 15 May 2025
Natalie C. Holles Director Mixed 25 May 2021
Amy L. Ladd Director Mixed 15 May 2025
Dolca Thomas Director Mixed 15 May 2025
Everett Rand Sutherland Director Mixed 01 Aug 2023
Alta Partners Management VIII, LLC 10%+ Owner Mixed 16 Aug 2023
Neil Murray Hamilton Graham Director Mixed 15 May 2025
Daniel Janney Director Mixed 25 May 2023
Robert E. Andreatta Director Mixed 15 May 2025
Ph.D. John P. McKearn Director Mixed 25 May 2022

Recent insider transactions for Allakos Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Reported value Reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* indicates a reported price that failed the local validity check.
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