Key facts
- SLS - SELLAS Life Sciences Group, Inc. has 10 insiders with reported activity on this page.
- Net insider value flow over the last year: +$149,406.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 10 Insiders of SELLAS Life Sciences Group, Inc.
- Symbol
- SLS on Nasdaq
- Location
- New York, NY
Change
- Buy value: $149,406; sell value: $0.
- Net share flow: +93,400.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to buying over the last 12 months. Net value: +$149,406.
Buys
$149,406
Shares: 93,400
Insiders: 3
Sells
$0
Shares: 0
Insiders: 0
Net
+$149,406
Shares: +93,400
Insiders: 3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 63,400 | 0 | $100,806 | $0 | +$100,806 |
| 9-12 | 30,000 | 0 | $48,600 | $0 | +$48,600 |
SELLAS Life Sciences Group, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Dragan Cicic | SVP, Chief Development Officer | $2,102,590 | Mixed | 07 Jan 2026 | ||
| John Thomas Burns | Cfo | $2,089,480 | Mixed | 07 Jan 2026 | ||
| Angelos M. Stergiou | President and CEO, Director | $1,030,449 | Mixed | 03 Dec 2025 | ||
| Barbara A. Wood | EVP, Gen. Counsel, Corp. Sec. | $821,565 | Mixed | 22 Jan 2024 | ||
| Katherine Bach Kalin | Director | $581,995 | +$100,806 | +21% | Mixed | 07 Jan 2026 |
| Jane Wasman | Director | $350,177 | +$33,800 | +11% | Mixed | 07 Jan 2026 |
| Robert L. van Nostrand | Director | $312,483 | +$14,800 | +5% | Mixed | 07 Jan 2026 |
| Robert Francomano | Chief Commercial Officer | $278,365 | Mixed | 22 Jan 2024 | ||
| David A. Scheinberg | Director | $275,475 | Mixed | 07 Jan 2026 | ||
| John Varian | Director | $274,789 | Mixed | 07 Jan 2026 |
Top shareholders of SELLAS Life Sciences Group, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.8%
from 13D/G
|
12,198,410
|
$51,599,273 | — | 31 Mar 2026 | |
| Anson Funds Management LP |
13D/G
|
— |
4.9%
|
7,481,178
|
$31,046,889 | +$6,010,196 | 31 Dec 2025 | |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC |
13D/G
|
— |
3.7%
|
6,514,658
|
$24,560,261 | $0 | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.7%
|
8,396,356
|
$35,516,586 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
4.2%
|
7,525,929
|
$31,834,680 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.2%
|
3,912,606
|
$16,554,768 | — | 31 Mar 2026 | |
| MARSHALL WACE, LLP |
13F
|
Company |
1.1%
|
2,037,162
|
$8,617,196 | — | 31 Mar 2026 | |
| JONES FINANCIAL COMPANIES LLLP |
13F
|
Company |
0.94%
|
1,675,077
|
$7,311,711 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
0.82%
|
1,462,806
|
$6,187,669 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.75%
|
1,336,293
|
$5,652,520 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.71%
|
1,275,984
|
$5,397,412 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.67%
|
1,202,839
|
$5,088,009 | — | 31 Mar 2026 | |
| DAGCO, INC. |
13F
|
Company |
0.58%
|
1,028,780
|
$4,351,740 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.42%
|
745,419
|
$3,153,123 | — | 31 Mar 2026 | |
| Invesco Ltd. |
13F
|
Company |
0.39%
|
698,080
|
$2,952,878 | — | 31 Mar 2026 | |
| Nuveen, LLC |
13F
|
Company |
0.38%
|
670,974
|
$2,838,220 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.36%
|
641,683
|
$2,714,320 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.31%
|
555,913
|
$2,351,512 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.27%
|
480,604
|
$2,032,955 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.27%
|
478,366
|
$2,023,488 | — | 31 Mar 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.23%
|
403,165
|
$1,705,388 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.22%
|
397,056
|
$1,679,547 | — | 31 Mar 2026 | |
| Everhart Financial Group, Inc. |
13F
|
Company |
0.2%
|
364,397
|
$1,541,399 | — | 31 Mar 2026 | |
| Opus Capital Group, LLC |
13F
|
Company |
0.19%
|
346,452
|
$1,465,000 | — | 31 Mar 2026 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.19%
|
344,778
|
$1,458,411 | — | 31 Mar 2026 | |
| VISION FINANCIAL MARKETS LLC |
13F
|
Company |
0.17%
|
304,400
|
$1,287,612 | — | 31 Mar 2026 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.17%
|
295,162
|
$1,248,535 | — | 31 Mar 2026 | |
| Rafferty Asset Management, LLC |
13F
|
Company |
0.14%
|
249,428
|
$1,055,080 | — | 31 Mar 2026 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.13%
|
225,707
|
$954,741 | — | 31 Mar 2026 | |
| Virtu Financial LLC |
13F
|
Company |
0.12%
|
221,829
|
$938,000 | — | 31 Mar 2026 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.11%
|
194,198
|
$821,452 | — | 31 Mar 2026 | |
| Vontobel Holding Ltd. |
13F
|
Company |
0.1%
|
174,153
|
$736,667 | — | 31 Mar 2026 | |
| Mariner, LLC |
13F
|
Company |
0.1%
|
173,570
|
$734,201 | — | 31 Mar 2026 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.09%
|
163,940
|
$618,054 | — | 31 Mar 2026 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.09%
|
163,290
|
$691,000 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.09%
|
159,524
|
$674,787 | — | 31 Mar 2026 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.08%
|
137,646
|
$582,243 | — | 31 Mar 2026 | |
| LPL Financial LLC |
13F
|
Company |
0.08%
|
137,208
|
$580,390 | — | 31 Mar 2026 | |
| Vanguard Global Advisers, LLC |
13F
|
Company |
0.07%
|
128,110
|
$541,905 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.07%
|
122,120
|
$517,000 | — | 31 Mar 2026 | |
| PROFUND ADVISORS LLC |
13F
|
Company |
0.06%
|
111,794
|
$472,889 | — | 31 Mar 2026 | |
| FULCRUM WEALTH ADVISORS, LLC |
13F
|
Company |
0.06%
|
109,251
|
$462,132 | — | 31 Mar 2026 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.06%
|
98,289
|
$411,785 | — | 31 Mar 2026 | |
| MetLife Investment Management, LLC |
13F
|
Company |
0.05%
|
94,255
|
$398,699 | — | 31 Mar 2026 | |
| TEMA ETFS LLC |
13F
|
Company |
0.05%
|
90,007
|
$380,730 | — | 31 Mar 2026 | |
| Tidal Investments LLC |
13F
|
Company |
0.05%
|
90,007
|
$380,730 | — | 31 Mar 2026 | |
| Engineers Gate Manager LP |
13F
|
Company |
0.05%
|
82,780
|
$350,159 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.05%
|
81,824
|
$327,705 | — | 31 Mar 2026 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.05%
|
81,695
|
$345,570 | — | 31 Mar 2026 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.04%
|
74,751
|
$316,197 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for SELLAS Life Sciences Group, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| John Varian | SLS | Common Stock | Award | 218.3% | 50,000 | 72,900 | 07 Jan 2026 | Direct | ||
| Robert L. van Nostrand | SLS | Common Stock | Award | 152% | 50,000 | 82,900 | 07 Jan 2026 | Direct | ||
| David A. Scheinberg | SLS | Common Stock | Award | 216.6% | 50,000 | 73,082 | 07 Jan 2026 | Direct | ||
| Dragan Cicic | SLS | Common Stock | Award | 116.4% | 300,000 | 557,805 | 07 Jan 2026 | Direct | ||
| John Thomas Burns | SLS | Common Stock | Award | 118% | 300,000 | 554,327 | 07 Jan 2026 | Direct | ||
| Katherine Bach Kalin | SLS | Common Stock | Award | 47.9% | 50,000 | 154,400 | 07 Jan 2026 | Direct | ||
| Jane Wasman | SLS | Common Stock | Award | 116.6% | 50,000 | 92,900 | 07 Jan 2026 | Direct | ||
| Dragan Cicic | SLS | Common Stock | Other | -19.8% | -63,800 | 257,805 | 03 Dec 2025 | Direct | ||
| John Thomas Burns | SLS | Common Stock | Other | -18.7% | -58,592 | 254,327 | 03 Dec 2025 | Direct | ||
| Angelos M. Stergiou | SLS | Common Stock | Other | -21.4% | -187,066 | 686,966 | 03 Dec 2025 | Direct | ||
| Katherine Bach Kalin | SLS | Common Stock | Purchase | 154.6% | $100,806 | $1.59 | 63,400 | 104,400 | 19 Nov 2025 | Direct |
| Robert L. van Nostrand | SLS | Common Stock | Purchase | 96.2% | $14,800 | $1.48 | 10,000 | 20,400 | 12 Jun 2025 | Direct |
| Jane Wasman | SLS | Common Stock | Purchase | 192.3% | $33,800 | $1.69 | 20,000 | 30,400 | 30 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.