SLS
SELLAS Life Sciences Group, 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 |
|---|---|---|---|---|---|
| Millennium Management re-entered | Q3 2024(8Q snapshot) | 7Q | $1.20 | $7.29 | +507% |
| Citadel Advisors re-entered | Q4 2024(8Q snapshot) | 6Q | $1.27 | $7.29 | +474% |
| Two Sigma Investments re-entered | Q4 2024(8Q snapshot) | 6Q | $1.27 | $7.29 | +474% |
| AQR Capital Management | Q2 2026(8Q snapshot) | 1Q | $7.08 | $7.29 | +3% |
“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.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Renaissance Technologies 3× in & out | Q4 2025 | Q1 2026 | → $3.55 | +143% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at SELLAS Life Sciences Group, 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 Jan 9, 2026 — the most recent Form 4 on file — not from today.
- Form 40001104659-26-002515Jan 9, 2026
- Form 40001104659-26-002511Jan 9, 2026
- Form 40001104659-26-002509Jan 9, 2026
- Form 40001104659-26-002506Jan 9, 2026
- Form 40001104659-26-002502Jan 9, 2026
- Form 40001104659-26-002499Jan 9, 2026
- Form 40001104659-26-002491Jan 9, 2026
- Form 40001104659-25-118882Dec 5, 2025
- Form 40001104659-25-118878Dec 5, 2025
- Form 40001104659-25-118872Dec 5, 2025
- Form 40001104659-25-114806Nov 21, 2025
- Form 40001104659-25-059166Jun 13, 2025
- Form 40001104659-25-055495Jun 2, 2025
- Form 40001104659-25-051980May 22, 2025
- Form 40001104659-25-003502Jan 14, 2025
Fundamentals
XBRL · SELLAS Life Sciences Group, Inc.Annual figures sourced directly from SELLAS Life Sciences Group, 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 SELLAS Life Sciences Group, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KFORM 8-KJun 2, 2026
- 8-KMaterial eventMay 12, 2026
- 10-QQuarterly reportMay 12, 2026
- DEF 14AFORM- DEF 14AApr 23, 2026
- 8-KMaterial eventMar 19, 2026
- 10-KAnnual reportMar 19, 2026
- 8-KFORM 8-KMar 11, 2026
- 8-KFORM 8-KJan 8, 2026
- 8-KMaterial eventNov 12, 2025
- 10-QQuarterly reportNov 12, 2025
- 8-KFORM 8-KOct 27, 2025
- S-3FORM S-3Oct 10, 2025
- 8-KFORM 8-KOct 3, 2025
- 8-KFORM 8-KSep 11, 2025
- 8-KMaterial eventAug 12, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q2 2026 | open | $7.08 | $7.29 | +3% |
| AQR Capital Management | Q2 2026 | open | $7.08 | $7.29 | +3% |
| Renaissance Technologies | Q4 2025 | Q1 2026 | $1.46 | $3.55 | +143% |
| Millennium Management | Q3 2025 | open | $1.55 | $7.29 | +370% |
| Two Sigma Investments | Q2 2025 | open | $1.60 | $7.29 | +356% |
| Renaissance Technologies | Q2 2025 | Q3 2025 | $1.51 | $1.55 | +3% |
| Citadel Advisors | Q4 2024 | Q1 2026 | $1.27 | $3.66 | +188% |
| Two Sigma Investments | Q4 2024 | Q1 2025 | $1.27 | $1.32 | +4% |
| Millennium Management | Q3 2024 | Q1 2025 | $1.20 | $1.32 | +10% |
| Renaissance Technologies | Q3 2024 | Q1 2025 | $1.21 | $1.27 | +5% |
- 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.