Citadel Advisors LLC
· Reduced
Change
−337K
Δ Own
−22.0%
Date
Q1 2026
AT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Citadel Advisors LLC
· Reduced
Change
−337K
Δ Own
−22.0%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −337K | −22.0% | Q1 2026 | |||||
|
Weiss Asset Management LP
· Exited
Change
−262K
Δ Own
−100.0%
Date
Q1 2026
|
Weiss Asset Management LP | Exited· Q1 2026 | – | −262K | −100.0% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Added
Change
+248K
Date
Q1 2026
|
Marshall Wace, LLP | Added· Q1 2026 | – | +248K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
Change
−209K
Δ Own
−27.5%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | – | −209K | −27.5% | Q1 2026 | |||||
|
Group One Trading LLC
· New
Change
+125K
Date
Q1 2026
|
Group One Trading LLC | New· Q1 2026 | – | +125K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Reduced
Change
−105K
Date
Q1 2026
|
Susquehanna International Group, LLP | Reduced· Q1 2026 | – | −105K | – | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· Added
Change
+81K
Date
Q1 2026
|
Gsa Capital Partners LLP | Added· Q1 2026 | – | +81K | – | Q1 2026 | |||||
|
Simplex Trading, LLC
· Added
Change
+66K
Date
Q1 2026
|
Simplex Trading, LLC | Added· Q1 2026 | – | +66K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+54K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +54K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· New
Change
+50K
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | New· Q1 2026 | – | +50K | – | Q1 2026 | |||||
|
Diametric Capital, LP
· New
Change
+35K
Date
Q1 2026
|
Diametric Capital, LP | New· Q1 2026 | – | +35K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+34K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +34K | – | Q1 2026 | |||||
|
Quantbot Technologies LP
· Exited
Change
−29K
Δ Own
−100.0%
Date
Q1 2026
|
Quantbot Technologies LP | Exited· Q1 2026 | – | −29K | −100.0% | Q1 2026 | |||||
|
Imc-Chicago, LLC
· New
Change
+28K
Date
Q1 2026
|
Imc-Chicago, LLC | New· Q1 2026 | – | +28K | – | Q1 2026 | |||||
|
Virtu Financial LLC
· New
Change
+21K
Date
Q1 2026
|
Virtu Financial LLC | New· Q1 2026 | – | +21K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$7K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $3.02 | -2K | -$7K | 5.0M | 0.0% | Jul 23, 2026 | Jul 24, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$80K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $3.01 | -26K | -$80K | 5.0M | −0.5% | Jul 22, 2026 | Jul 24, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$202K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $3.64 | -56K | -$202K | 5.0M | −1.1% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Tkachenko Igor
· Officer
Grant (A)
9K
|
Tkachenko Igor | Officer | Grant (A) | – | 9K | – | 321K | +2.8% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$215K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $3.87 | -56K | -$215K | 5.0M | – | Jun 16, 2026 | Jun 18, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$238K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $4.28 | -56K | -$238K | 5.1M | – | Jun 3, 2026 | Jun 5, 2026 | |||||||||
|
Tkachenko Igor
· Officer
Grant (A)
7K
|
Tkachenko Igor | Officer | Grant (A) | – | 7K | – | 312K | – | May 29, 2026 | Jun 4, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$241K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $4.33 | -56K | -$241K | 5.2M | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$306K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $5.51 | -56K | -$306K | 5.2M | – | May 6, 2026 | May 8, 2026 | |||||||||
|
Noriega Roger
· Director
2 operations
−$70K
|
Noriega Roger | Director | 2 operations | $5.50–$5.54 | −13K | −$70K | 242K | – | May 1, 2026 | May 4, 2026 | |||||||||
|
Tkachenko Igor
· Officer
Grant (A)
8K
|
Tkachenko Igor | Officer | Grant (A) | – | 8K | – | 305K | – | Apr 30, 2026 | May 1, 2026 | |||||||||
|
Fogassa Marc
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$264K
|
Fogassa Marc | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $4.74 | -56K | -$264K | 5.3M | – | Apr 22, 2026 | May 7, 2026 | |||||||||
|
Miranda Tiago
· CFO
Sell
−$29K
|
Miranda Tiago | CFO | Sell | $5.03 | −6K | −$29K | 30K | – | Apr 17, 2026 | Apr 20, 2026 | |||||||||
|
Miranda Tiago
· CFO
Sell
−$22K
|
Miranda Tiago | CFO | Sell | $5.00 | −4K | −$22K | 36K | – | Apr 16, 2026 | Apr 20, 2026 | |||||||||
|
Noriega Roger
· Director
2 operations
−$48K
|
Noriega Roger | Director | 2 operations | $4.70–$4.73 | −10K | −$48K | 255K | – | Apr 15, 2026 | Apr 17, 2026 | |||||||||
N
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38 reporting institutions disclosed ATLX 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.