Citadel Advisors LLC
· Reduced
−$4.5M
Change
−3.3M
Δ Own
−70.2%
Date
Q1 2026
AK
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Citadel Advisors LLC
· Reduced
−$4.5M
Change
−3.3M
Δ Own
−70.2%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | −$4.5M | −3.3M | −70.2% | Q1 2026 | |||||
|
State Street
· Reduced
−$2.8M
Change
−2.1M
Date
Q1 2026
|
State Street | Reduced· Q1 2026 | −$2.8M | −2.1M | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
−$2.4M
Change
−1.8M
Δ Own
−49.0%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | −$2.4M | −1.8M | −49.0% | Q1 2026 | |||||
|
Federated Hermes, Inc.
· Exited
−$1.8M
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Federated Hermes, Inc. | Exited· Q1 2026 | −$1.8M | −1.3M | −100.0% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$1.7M
Change
+1.2M
Δ Own
+1332.2%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$1.7M | +1.2M | +1332.2% | Q1 2026 | |||||
|
AQR Capital Management LLC
· Added
+$1.6M
Change
+1.1M
Date
Q1 2026
|
AQR Capital Management LLC | Added· Q1 2026 | +$1.6M | +1.1M | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Reduced
−$1.5M
Change
−1.1M
Date
Q1 2026
|
Goldman Sachs Group Inc | Reduced· Q1 2026 | −$1.5M | −1.1M | – | Q1 2026 | |||||
|
First Trust Advisors LP
· Exited
−$1.3M
Change
−942K
Δ Own
−100.0%
Date
Q1 2026
|
First Trust Advisors LP | Exited· Q1 2026 | −$1.3M | −942K | −100.0% | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Reduced
−$1.1M
Change
−823K
Date
Q1 2026
|
Acadian Asset Management LLC | Reduced· Q1 2026 | −$1.1M | −823K | – | Q1 2026 | |||||
|
Squarepoint Ops LLC
· Reduced
−$1.1M
Change
−800K
Date
Q1 2026
|
Squarepoint Ops LLC | Reduced· Q1 2026 | −$1.1M | −800K | – | Q1 2026 | |||||
|
Barclays PLC
· Reduced
−$1.1M
Change
−781K
Date
Q1 2026
|
Barclays PLC | Reduced· Q1 2026 | −$1.1M | −781K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
+$1.1M
Change
+765K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | +$1.1M | +765K | – | Q1 2026 | |||||
|
Vanguard
· Reduced
−$1.0M
Change
−753K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | −$1.0M | −753K | – | Q1 2026 | |||||
|
Nordea Investment Management AB
· Exited
−$1.0M
Change
−752K
Δ Own
−100.0%
Date
Q1 2026
|
Nordea Investment Management AB | Exited· Q1 2026 | −$1.0M | −752K | −100.0% | Q1 2026 | |||||
|
Millennium Management LLC
· Added
+$1.0M
Change
+731K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | +$1.0M | +731K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ostrowski Erik
· Officer
Sell
−$62K
|
Ostrowski Erik | Officer | Sell | $1.11 | −56K | −$62K | 617K | −8.3% | Jun 29, 2026 | Jul 1, 2026 | |||||||||
|
Wolf Myles
· Director
2 operations
89K
|
Wolf Myles | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Smith Cynthia
· Director
2 operations
89K
|
Smith Cynthia | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Rogers Michael W.
· Director
2 operations
89K
|
Rogers Michael W. | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Frieson Ron
· Director
2 operations
89K
|
Frieson Ron | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Zumwalt Leanne M.
· Director
2 operations
89K
|
Zumwalt Leanne M. | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Adams Adrian
· Director
2 operations
89K
|
Adams Adrian | Director | 2 operations | – | 89K | – | 54K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Vickers Philip J.
· Director
Grant (A)
214K
|
Vickers Philip J. | Director | Grant (A) | – | 214K | – | 214K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Butler John P.
· Director, Officer
Buy
+$87K
|
Butler John P. | Director, Officer | Buy | $1.25 | +69K | +$87K | 3.4M | – | Mar 4, 2026 | Mar 5, 2026 | |||||||||
|
Malabre Richard C.
· Officer
2 operations
−$69K
|
Malabre Richard C. | Officer | 2 operations | $1.39 | −50K | −$69K | 313K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Grund Nicholas
· Officer
2 operations
−$118K
|
Grund Nicholas | Officer | 2 operations | $1.39 | −85K | −$118K | 562K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Burke Steven Keith
· Officer
3 operations
−$94K
|
Burke Steven Keith | Officer | 3 operations | $1.39 | −68K | −$94K | 948K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Rucci Carolyn M.
· Officer
3 operations
−$97K
|
Rucci Carolyn M. | Officer | 3 operations | $1.39 | −70K | −$97K | 588K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Ostrowski Erik
· Officer
Sell
−$49K
|
Ostrowski Erik | Officer | Sell | $1.39 | −35K | −$49K | 673K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Butler John P.
· Director, Officer
4 operations
−$474K
|
Butler John P. | Director, Officer | 4 operations | $1.39 | −341K | −$474K | 3.4M | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
N
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154 reporting institutions disclosed AKBA position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.