Get started

Funds · CLRB

Who owns CLRB?

Institutional ownership of Cellectar Biosciences Inc. from Form 13F, Q2 2026

29 institutional managers reported holding Cellectar Biosciences Inc. (CLRB) in Form 13F filings for Q2 2026, with 3,479,619 shares worth $9.7M. The largest reported holder was Caligan Partners LP. Managers that filed both quarters added a net 2,894,743 shares (+931.6%). 13 opened new positions and 4 sold out.

Funds holding
29
Value held
$9.7M
New / sold out
13 / 4
Net shares, same filers
+931.6%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of CLRB

FundValueShare of 13F holdingsSharesMove
Caligan Partners LP$1.3M13.5%469,998New
Nantahala Capital Management, LLC$1.2M12.6%439,996New
Stempoint Capital LP$987K10.2%354,938New
Vanguard Capital Management LLC$910K9.4%327,367Added
Silverarc Capital Management, LLC$894K9.2%321,728New
Bleichroeder LP$803K8.3%288,679Added
Jupiter Topco LLC$759K7.9%274,156First report
Balyasny Asset Management L.P.$612K6.3%220,000New
Empery Asset Management, LP$527K5.4%189,605New
Diadema Partners LP$385K4.0%138,341New
Stonepine Capital Management, LLC$291K3.0%104,550New
Persistent Asset Partners Ltd$258K2.7%92,983New
Boothbay Fund Management, LLC$236K2.4%85,069New
Geode Capital Management, LLC$148K1.5%53,351Added
Vanguard Fiduciary Trust Co$128K1.3%46,220Added
Sequoia Financial Advisors, LLC$61K0.6%21,850Added
Riverview Capital Advisers, LLC$50K0.3%10,384Unchanged
Acadian Asset Management LLC$46K0.5%16,577New
Northern Trust Corp$41K0.4%14,839New
BlackRock, Inc.$13K0.1%4,735Trimmed
UBS Group AG$9K0.1%3,093Trimmed
Barclays PLC$2K0.0%561New
Morgan Stanley$1K0.0%510Unchanged
TD Waterhouse Canada Inc.$1780.0%63Unchanged
SBI Securities Co., Ltd.$310.0%11Unchanged

Share of 13F holdings is each fund's shares as a share of the 3,479,619 CLRB shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

  1. Caligan Partners LP New+$1.3M
  2. Nantahala Capital Management, LLC New+$1.2M
  3. Stempoint Capital LP New+$987K
  4. Silverarc Capital Management, LLC New+$894K
  5. Vanguard Capital Management LLC Added+$682K
  6. Balyasny Asset Management L.P. New+$612K
  7. Empery Asset Management, LP New+$527K
  8. Bleichroeder LP Added+$525K
  9. Diadema Partners LP New+$385K
  10. Stonepine Capital Management, LLC New+$291K

Biggest sellers in Q2 2026

  1. Warberg Asset Management LLC Sold out-$35K
  2. UBS Group AG Trimmed-$18K
  3. Tower Research Capital LLC (TRC) Sold out-$2K
  4. Vanguard Global Advisers, LLC Sold out-$1K
  5. BlackRock, Inc. Trimmed-$28
  6. FMR LLC Sold out-$25

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $8.1M and sold $57K; 6 added and 2 trimmed.

Schedule 13D and 13G filings on CLRB

Owners of more than 5% must file within days, so these can be newer than the 13F data.

Questions about CLRB ownership

Who owns CLRB stock?
29 institutional investment managers reported CLRB positions in their Form 13F filings for Q2 2026, holding 3,479,619 shares worth $9.7M in total. Caligan Partners LP reported the largest position.
Are funds buying or selling CLRB?
In Q2 2026, 13 managers opened new CLRB positions, 6 added, 2 trimmed and 4 sold out. Managers that filed in both quarters added a net 2,894,743 shares.
How current is this CLRB institutional ownership data?
It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to CLRB by CUSIP. Options are left out. CLRB news and filings · CLRB insider trades · Top funds