Oslo Pensjonsforsikring AS
· New
+$25M
Change
+377K
Date
Q1 2026
AT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oslo Pensjonsforsikring AS
· New
+$25M
Change
+377K
Date
Q1 2026
|
Oslo Pensjonsforsikring AS | New· Q1 2026 | +$25M | +377K | – | Q1 2026 | |||||
|
Canyon Capital Advisors LLC
· New
+$20M
Change
+305K
Date
Q1 2026
|
Canyon Capital Advisors LLC | New· Q1 2026 | +$20M | +305K | – | Q1 2026 | |||||
|
Vanguard
· Added
+$17M
Change
+255K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$17M | +255K | – | Q1 2026 | |||||
|
American Century Companies Inc
· Added
+$12M
Change
+186K
Date
Q1 2026
|
American Century Companies Inc | Added· Q1 2026 | +$12M | +186K | – | Q1 2026 | |||||
|
Mirae Asset Global Etfs Holdings Ltd.
· Added
+$12M
Change
+182K
Date
Q1 2026
|
Mirae Asset Global Etfs Holdings Ltd. | Added· Q1 2026 | +$12M | +182K | – | Q1 2026 | |||||
|
Coliseum Capital Management, LLC
· Added
+$9.0M
Change
+138K
Date
Q1 2026
|
Coliseum Capital Management, LLC | Added· Q1 2026 | +$9.0M | +138K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$8.7M
Change
+134K
Δ Own
+60.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$8.7M | +134K | +60.9% | Q1 2026 | |||||
|
Pdt Partners, LLC
· Added
+$7.3M
Change
+112K
Date
Q1 2026
|
Pdt Partners, LLC | Added· Q1 2026 | +$7.3M | +112K | – | Q1 2026 | |||||
|
Woodline Partners LP
· New
+$6.6M
Change
+102K
Date
Q1 2026
|
Woodline Partners LP | New· Q1 2026 | +$6.6M | +102K | – | Q1 2026 | |||||
|
Dimensional
· Added
+$6.3M
Change
+98K
Date
Q1 2026
|
Dimensional | Added· Q1 2026 | +$6.3M | +98K | – | Q1 2026 | |||||
|
Barclays PLC
· Added
+$6.3M
Change
+97K
Date
Q1 2026
|
Barclays PLC | Added· Q1 2026 | +$6.3M | +97K | – | Q1 2026 | |||||
|
Lsv Asset Management
· Added
+$5.9M
Change
+91K
Date
Q1 2026
|
Lsv Asset Management | Added· Q1 2026 | +$5.9M | +91K | – | Q1 2026 | |||||
|
Deutsche Bank AG
· Added
+$5.9M
Change
+90K
Date
Q1 2026
|
Deutsche Bank AG | Added· Q1 2026 | +$5.9M | +90K | – | Q1 2026 | |||||
|
Man Group PLC
· Added
+$5.8M
Change
+89K
Date
Q1 2026
|
Man Group PLC | Added· Q1 2026 | +$5.8M | +89K | – | Q1 2026 | |||||
|
Allianz Asset Management GMBH
· Added
+$5.6M
Change
+85K
Date
Q1 2026
|
Allianz Asset Management GMBH | Added· Q1 2026 | +$5.6M | +85K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Edmonds Franklin S. Jr
· Director
Grant (A)
11
|
Edmonds Franklin S. Jr | Director | Grant (A) | – | 11 | – | 3K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Zeffiro A. Mark
· Director
Grant (A)
54
|
Zeffiro A. Mark | Director | Grant (A) | – | 54 | – | 24K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Wynn Betty R.
· Director
Grant (A)
31
|
Wynn Betty R. | Director | Grant (A) | – | 31 | – | 21K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Kelly Daniel S.
· Officer
Grant (A)
41
|
Kelly Daniel S. | Officer | Grant (A) | – | 41 | – | 33K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Lamps Mark F.
· Officer
Grant (A)
53
|
Lamps Mark F. | Officer | Grant (A) | – | 53 | – | 36K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
James Wilbert W. Jr
· Director
Grant (A)
68
|
James Wilbert W. Jr | Director | Grant (A) | – | 68 | – | 17K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Edwards Barbara Joanne
· Director
Grant (A)
20
|
Edwards Barbara Joanne | Director | Grant (A) | – | 20 | – | 6K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Waltz William E. Jr
· Director
Grant (A)
272
|
Waltz William E. Jr | Director | Grant (A) | – | 272 | – | 123K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Isbell Jeri L.
· Director
Grant (A)
110
|
Isbell Jeri L. | Director | Grant (A) | – | 110 | – | 31K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Deitzer John Michael
· Officer
Grant (A)
53
|
Deitzer John Michael | Officer | Grant (A) | – | 53 | – | 19K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Kershaw Justin A.
· Director
Grant (A)
74
|
Kershaw Justin A. | Director | Grant (A) | – | 74 | – | 19K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Lowe Leangela W.
· Officer
Grant (A)
41
|
Lowe Leangela W. | Officer | Grant (A) | – | 41 | – | 36K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Pregenzer John W.
· Officer
Grant (A)
92
|
Pregenzer John W. | Officer | Grant (A) | – | 92 | – | 61K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Alvey James William
· Officer
Grant (A)
11
|
Alvey James William | Officer | Grant (A) | – | 11 | – | 5K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
|
Schrock Michael V
· Director
Grant (A)
9
|
Schrock Michael V | Director | Grant (A) | – | 9 | – | 22K | – | May 29, 2026 | Jun 2, 2026 | |||||||||
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290 reporting institutions disclosed ATKR 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.