Stocks/Funds/CIK 1781002

Bleichroeder LP

long-term holder
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1781002
Assets
$579M
+54.2% YoY
Holdings
81
Lifetime alpha vs market
-10.80% annual
Average hold time
2.7 yr
median 2.0 yr

Quarterly history

Cum return -4% vs S&P +52% · α -56% lifetimeAUM $579M · peak $662MFlow $66M (+12%)2019-122020-122021-122022-122023-122024-122025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+0.38%
adds when stocks drop
when a holding falls −10%+
Middle response
-1.61%
baseline attrition
Rally response
-2.12%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
GLDSPDR Gold Shares$204M35.3%6.5 yr
GPGIGPGI, Inc.$68M11.7%+57.3%4.3 yr
RHLDResolute Holdings Manage$51M8.8%+417.9%1.3 yr
SPYState Street SPDR S&P 50$44M7.6%+17.6%2.5 yr
LINLinde plc$34M5.9%+7.9%3.3 yr
$17M2.9%2.5 yr
IDNIntellicheck, Inc.$14M2.5%+130.7%6.5 yr
DUOTDuos Technologies Group,$11M1.9%+21.6%6.3 yr
INVEIdentiv, Inc.$11M1.8%+16.0%6.5 yr
BXBlackstone Inc.$10M1.8%-14.9%6.5 yr
$9M1.6%1.3 yr
IMMXImmix Biopharma, Inc.$9M1.6%+442.3%2.3 yr
SPGIS&P Global Inc.$9M1.5%-15.6%6.5 yr
$6M1.1%3.0 yr
$5M0.8%0.8 yr

Portfolio composition (YoY)

Industry mix
Asset Management45.3%+1.1pp$262M
Manufacturing - Metal Fabrication11.7%+0.3pp$68M
Specialty Business Services8.8%+6.1pp$51M
Unknown8.3%-0.1pp$48M
Chemicals - Specialty5.9%-4.6pp$34M
Biotechnology5.6%+3.6pp$32M
Software - Application5.1%+0.9pp$29M
Computer Hardware1.9%-0.6pp$11M
Financial - Data & Stock Exchanges1.5%-1.2pp$9M
Medical - Devices1.2%+0.8pp$7M
Country
US84.5%+4.5pp
Unknown8.3%-0.1pp
GB5.9%-4.6pp
MX0.5%+0.0pp
AU0.5%
CA0.4%-0.2pp
IL0.0%-0.0pp
Top 5: 69.3% · Top 10: 80.4% · Top 25: 93.3%

Winners

TickerPrev $PnLYoY %
RHLD$10M+0.04B417.9%
GPGI$42M+0.02B57.3%
IDN$6M+0.01B130.7%
IMMX$1M+0.01B442.3%
LIN$39M+0.00B7.9%

Losers

TickerPrev $PnLYoY %
BX$13M-0.00B-14.9%
SPGI$10M-0.00B-15.6%
BRFH$4M-0.00B-7.9%
GNLX$2M-0.00B-10.4%

Top buys this quarter · 15

SPY State Street SPDR S&P 500 ETF +$23M
COCH Envoy Medical, Inc.new+$4M
ROC Rank One Computing Corporationnew+$3M
GNLX Genelux Corporation+$2M
CGEM Cullinan Therapeutics, Inc.new+$1M
VENU Venu Holding Corporation+$1M
RNXT RenovoRx, Inc.+$1M
MAIA MAIA Biotechnology, Inc.new+$1M
SHAZ SharonAI Holdings, Inc. Class new+$1M
IPWR Ideal Power Inc.+$0M

Top sells this quarter · 10

LIN Linde plc$32M
LWLG Lightwave Logic, Inc.exit$1M
RHLD Resolute Holdings Management, $1M
GPCR Structure Therapeutics Inc.exit$0M
GPGI GPGI, Inc.$0M
$0M
exit$0M
exit$0M
exit$0M
exit$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$579M81+52.28%+17.59%+34.69%+0.07B
2025-12-31$568M73+57.40%+17.72%+39.68%-0.03B
2025-09-30$513M72+46.14%+17.52%+28.62%+0.01B
2025-06-30$407M76+40.12%+14.94%+25.17%-0.03B
2025-03-31$375M78+6.39%+8.30%-1.91%+0.00B
2024-12-31$398M74+21.07%+24.89%-3.82%-0.01B
2024-09-30$372M73+21.85%+36.04%-14.19%-0.03B
2024-06-30$336M75-4.50%+24.49%-29.00%-0.01B
2024-03-31$392M79+19.09%+29.62%-10.53%-0.08B
2023-12-31$440M76+19.55%+26.18%-6.63%+0.00B
2023-09-30$398M73-9.43%+21.57%-31.00%-0.06B
2023-06-30$486M82-16.98%+19.42%-36.40%-0.03B
2023-03-31$468M79-50.08%-7.82%-42.26%-0.02B
2022-12-31$460M86-16.85%+7.56%-24.41%+0.06B
2022-09-30$479M92-14.56%-4.93%-9.63%+0.07B
2022-06-30$484M96-34.07%-16.11%-17.96%+0.11B