SEC 13F Intelligence

Managers / Q3 2021 · view latest →

EQUITEC PROPRIETARY MARKETS, LLC

CIK 0001143261 · 111 W. JACKSON, 20TH FL.OOR, CHICAGO, IL, 60604 · 312 692-5009

Reported Value
$540M
Q3 2021
Positions
274
Filings on Record
25
2019–present window
Filed
Oct 12, 2021
original filing

Summary

Equitec Proprietary Markets, LLC reported $540M in U.S.-listed holdings across 274 positions for Q3 2021.

Its largest position, STMP, represents 9.0% of the portfolio.

Compared with Q2 2021, the fund opened 71 new positions and exited 92.

Portfolio Metrics

Turnover
+34.0%
vs prior filed quarter
Top-10 Concentration
+26.9%
share of reported value
Largest Position
+9.0%
Stamps Com
New / Exited
71 / 92
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $257MQ4 ’18Q3 ’20: $131MQ4 ’20: $384MQ1 ’21: $318MQ1 ’21Q2 ’21: $334MQ3 ’21: $540MQ4 ’21: $739MQ4 ’21Q1 ’22: $457MQ2 ’22: $353MQ3 ’22: $380MQ3 ’22Q4 ’22: $315MQ1 ’23: $212MQ2 ’23: $331MQ2 ’23Q3 ’23: $405MQ4 ’23: $135MQ1 ’24: $164MQ1 ’24Q2 ’24: $79MQ3 ’24: $117MQ4 ’24: $102MQ4 ’24Q1 ’25: $141MQ2 ’25: $106MQ3 ’25: $440MQ3 ’25Q4 ’25: $174MQ1 ’26: $187Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 89.6%Other: 5.4%ETP: 3.6%ADR: 1.0%Equity WRT: 0.3%Other: 0.0%
  • Common Stock · 89.6% · $484M
  • Other · 5.4% · $29M
  • ETP · 3.6% · $19M
  • ADR · 1.0% · $6M
  • Equity WRT · 0.3% · $2M
  • Other · 0.0% · $141,000

Quarter-over-Quarter Changes full breakdown →

vs Q2 2021 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
STMPSTAMPS COM INCNEW+633.1K633.1K+$209M$209M
XLRNACCELERON PHARMA INCNEW+118.4K118.4K+$20M$20M
SPDR S&P 500 ETF TRNEW+40.4K40.4K+$17M$17M
QADAQAD INCNEW+119.2K119.2K+$10M$10M
HRCHILL-ROM HLDGS INCNEW+62.9K62.9K+$9M$9M
SF9SANDERSON FARMS INCNEW+33.1K33.1K+$6M$6M
VNEUSDVEONEER INCNEW+164.5K164.5K+$6M$6M
DDIDOUBLEDOWN INTERACTIVE CO LTNEW+315.3K315.3K+$6M$6M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q3 2021

24 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1STMPSTAMPS COM INChistory →COM NEW9.01%$49M147.6K
2RILYB. RILEY FINANCIAL INChistory →COM7.71%$42M705.7K
3KSUEURKANSAS CITY SOUTHERNhistory →COM NEW3.17%$17M63.3K
4G3VGREEN PLAINS INChistory →COM1.43%$8M235.8K
5XLRNACCELERON PHARMA INChistory →COM1.38%$7M43.3K
6DDIDOUBLEDOWN INTERACTIVE CO LThistory →ADS1.03%$6M315.3K
7ORION ENGINEERED CARBONS S ACOM0.91%$5M271.0K
8QADAQAD INCCL A0.90%$5M55.6K
9PARABELLUM ACQUISITION CORPUNIT 99/99/99990.84%$5M456.7K
10SF9SANDERSON FARMS INCCOM0.54%$3M15.6K
11NUANEURNUANCE COMMUNICATIONS INCCOM0.53%$3M52.2K
12COHREURCOHERENT INCCOM0.50%$3M10.8K
13VIACOMCBS INCCL B0.49%$3M67.4K
14VNEUSDVEONEER INCCOM0.47%$3M74.3K
15XLNXEURXILINX INCCOM0.43%$2M15.5K
16TREURTRILLIUM THERAPEUTICS INCCOM NEW0.41%$2M126.6K
17BWBABCOCK & WILCOX ENTERPRISESCOM0.35%$2M292.0K
18HRCHILL-ROM HLDGS INCCOM0.32%$2M11.5K
19ISHARES TRRUSSELL 2000 ETF0.31%$2M7.7K
20CLOVCLOVER HEALTH INVESTMENTS COCOM CL A0.29%$2M209.6K
21CCIVGBPLUCID GROUP INCCOM0.27%$1M57.5K
22UISUNISYS CORPCOM NEW0.26%$1M56.5K
23RDNWRUMBLEON INCCOM CL B0.24%$1M33.2K
24SNCREURSYNCHRONOSS TECHNOLOGIES INCCOM0.24%$1M538.8K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$187M81May 11, 202613F-HRchanges · EDGAR ↗
Q4 2025$174M84Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$440M77Nov 26, 202513F-HRchanges · EDGAR ↗
Q2 2025$106M65Aug 6, 202513F-HRchanges · EDGAR ↗
Q1 2025$141M66May 14, 202513F-HRchanges · EDGAR ↗
Q4 2024$102M72Jan 29, 202513F-HRchanges · EDGAR ↗
Q3 2024$117M73Oct 18, 202413F-HRchanges · EDGAR ↗
Q2 2024$79M80Jul 12, 202413F-HRchanges · EDGAR ↗
Q1 2024$164M90Apr 26, 2024RESTATEMENTchanges · EDGAR ↗
Q4 2023$135M109Jan 29, 202413F-HRchanges · EDGAR ↗
Q3 2023$405M132Oct 17, 202313F-HRchanges · EDGAR ↗
Q2 2023$331M106Jul 12, 202313F-HRchanges · EDGAR ↗
Q1 2023$212M162Apr 28, 202313F-HRchanges · EDGAR ↗
Q4 2022$315M213Jan 31, 202313F-HRchanges · EDGAR ↗
Q3 2022$380M292Oct 11, 202213F-HRchanges · EDGAR ↗
Q2 2022$353M300Jul 18, 202213F-HRchanges · EDGAR ↗
Q1 2022$457M265Apr 22, 202213F-HRchanges · EDGAR ↗
Q4 2021$739M441Jan 31, 202213F-HRchanges · EDGAR ↗
Q3 2021$540M274Oct 12, 202113F-HRchanges · EDGAR ↗
Q2 2021$334M304Jul 20, 202113F-HRchanges · EDGAR ↗
Q1 2021$318M321Apr 19, 202113F-HRchanges · EDGAR ↗
Q4 2020$384M128Jan 26, 202113F-HRchanges · EDGAR ↗
Q3 2020$131M99Oct 13, 202013F-HRchanges · EDGAR ↗
Q4 2018$257M58Jan 30, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.