OABI
OMNIAB, INC.Marquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $0.00 | $2.29 | — |
| D.E. Shaw re-entered | Q3 2024(8Q snapshot) | 7Q | $4.11 | $2.29 | -44% |
| Millennium Management | Q3 2024(8Q snapshot) | 7Q | $4.11 | $2.29 | -44% |
| Two Sigma Investments re-entered | Q4 2024(8Q snapshot) | 6Q | $4.07 | $2.29 | -44% |
| Renaissance Technologies | Q2 2025(8Q snapshot) | 4Q | $1.52 | $2.29 | +51% |
| AQR Capital Management | Q2 2025(8Q snapshot) | 4Q | $1.55 | $2.29 | +48% |
| Point72 Asset Management | Q2 2026(8Q snapshot) | 1Q | $2.18 | $2.29 | +5% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at OmniAb, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Apr 21, 2026 — the most recent Form 4 on file — not from today.
- Form 40001982655-26-000005Apr 21, 2026
- Form 40002065241-26-000003Apr 21, 2026
- Form 40001628280-26-024136Apr 7, 2026
- Form 40001628280-26-024133Apr 7, 2026
- Form 40001628280-26-024131Apr 7, 2026
- Form 40001392266-26-000002Feb 18, 2026
- Form 40001462354-26-000002Feb 18, 2026
- Form 40001237556-26-000001Feb 18, 2026
- Form 40001628280-26-008709Feb 17, 2026
- Form 40001628280-26-008707Feb 17, 2026
- Form 40001628280-26-008704Feb 17, 2026
- Form 40001208906-26-000003Jan 30, 2026
- Form 40001392266-25-000006Dec 9, 2025
- Form 40001462354-25-000007Dec 9, 2025
- Form 40001237556-25-000013Dec 9, 2025
Fundamentals
XBRL · OMNIAB, INC.Annual figures sourced directly from OMNIAB, INC.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for OmniAb, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 10-QQuarterly reportMay 7, 2026
- 8-KMaterial eventMay 7, 2026
- DEF 14AProxy statementApr 29, 2026
- 10-KAnnual reportMar 4, 2026
- 8-KMaterial eventMar 4, 2026
- 8-KMaterial eventJan 30, 2026
- 10-QQuarterly reportNov 4, 2025
- 8-KMaterial eventNov 4, 2025
- S-3Registration (shelf)Sep 12, 2025
- 8-KMaterial eventAug 25, 2025
- 10-QQuarterly reportAug 6, 2025
- 8-KMaterial eventAug 6, 2025
- 8-KMaterial eventJun 18, 2025
- 10-QQuarterly reportMay 8, 2025
- 8-KMaterial eventMay 8, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Point72 Asset Management | Q2 2026 | open | $2.18 | $2.29 | +5% |
| D.E. Shaw | Q4 2025 | open | $1.56 | $2.29 | +47% |
| Two Sigma Investments | Q3 2025 | open | $2.00 | $2.29 | +14% |
| AQR Capital Management | Q2 2025 | open | $1.55 | $2.29 | +48% |
| Renaissance Technologies | Q2 2025 | open | $1.52 | $2.29 | +51% |
| Two Sigma Investments | Q4 2024 | Q2 2025 | $4.07 | $1.55 | -62% |
| Citadel Advisors | Q3 2024 | Q4 2024 | $0.00 | — | +0% |
| Citadel Advisors | Q3 2024 | open | $4.11 | $2.29 | -44% |
| D.E. Shaw | Q3 2024 | Q4 2024 | $4.11 | $4.07 | -1% |
| Millennium Management | Q3 2024 | open | $4.11 | $2.29 | -44% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.